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3Com S24x Crib Toy User Manual

1. Numeric Status Service Description Comments Display LED LED 00 Flicker OFF FBIST motherboard test 01 08 Flicker OFF FBIST I O card test 00 08 OFF ON Slot of highest priority card diagnostic failure 20 OFF ON Modem card failure 30 OFF ON PBIST FLASH failure 31 OFF ON PBIST CMEM failure 33 OFF ON Lab strap installed 34 OFF ON CMEM battery bad 40 OFF ON PBIST Invalid FLASH checksum 41 OFF ON Alternate FLASH loaded 42 OFF ON Default CMEM loaded incompatible CMEM image detected 43 OFF ON Alternate configuration loaded 44 OFF ON FLASH being erased this takes a few minutes 45 OFF ON Waiting for flash file Port 6 configured at 9600 bps 45 OFF ON Waiting for flash file Port 6 configured at 19200 bps 4 5 OFF ON Waiting for flash file Port 6 configured at 115200 bps 46 Blinking ON Status OK loading 46 No Blink ON Load problem reset node and restart cold load procedure 47 OFF ON Copying from RAM to FLASH this takes a few minutes PathBuilder S24x 26x and 27x Switch Error Codes C 1 C 2 Numeric Status Service Description Comments Display continued LED LED 48 OFF ON FLASH write failure 49 OFF ON Read error on Port 6 60 OFF ON Local DRAM exhausted 8 8 ON OFF PBIST 3 seconds Blank OFF OFF PBIST lamp off test 5 seconds LO OFF OFF Load Phase 0 PROM IPL loads the FLASH IPL image
2. Maintenance Example Maintenance Removing Replacing the Lithium Battery Figure 4 7 shows an example of removing the lithium battery Figure 4 7 Removing the Lithium Battery 4 15 Removing Replacing the Lithium Battery 4 16 Maintenance Overview What Is It Statistics and Alarms Software Authorization Key Channelized Data Chapter 5 Channelized Data The Channelized Data option provides an alternative to using Serial Data Boards SDB to concentrate data traffic from remote nodes attached to the PathBuilder S24x 26x and 27x switch through a multiplexer Using one T1 or E1 card installed in a PathBuilder S24x 26x and 27x switch Channelized Data supports a greater number of port connections between the PathBuilder S24x 26x and 27x switch and remote nodes than allowed is by SDBs For example eight SDB cards installed in the PathBuilder S24x 26x and 27x switch plus three motherboard ports allow a maximum of 19 connections per node or two ports per SDB card With Channelized Data you can make up to 30 connections using a T1 card or El card E Note Each E1 or T1 card contains two ports However the Channelized Data option only supports up to 30 configured virtual ports for data traffic The remaining virtual ports available on the PathBuilder S24x 26x and 27x switch are reserved for uncompressed voice traffic The Channelized Data option is configurable from the Control T
3. FLASH L Optional FLASH CMEM B SE TA Data Compression Global DRAM SIMM Slot Motherboard Figure 3 5 Installing SIMMs Installing a SIMM Perform these steps to install the SIMM Step Action 1 Insert the SIMM at a slight angle as shown in Figure 3 5 2 Snap the SIMM into the vertical position 3 Be sure it locks in place with the locking tabs in a vertical position Removing a SIMM When removing a SIMM gently disengage locking tabs and lift out the SIMM PathBuilder S24x 26x and 27x Switch Hardware Installation 3 15 Installing O Cards Installing I O Cards Introduction These PathBuilder S24x 26x and 27x switch I O cards are installed into slots 1 through 8 Serial Data Board SDB e BRI Hub The Modem card can only be installed into slot 1 Installing an I O Perform these steps to install any of the I O cards Card Step Action 1 Align the card and the appropriate slot 2 Insert the card making the proper connection on the motherboard 3 Fasten each card with a single holding screw to the rear of the PathBuilder S24x 26x and 27x switch chassis PathBuilder S24x 26x and 27x Switch Hardware Installation Installing a T1 or E1 Dua
4. gt RI TM 22 lt RI 24 lt EXTERNAL 24 J 22 00 gt EXTERNAL TRANSMIT TRANSMIT CLOCK CLOCK 25 lt MAKE BUSY 25 gt TEST MODE Pin assigned double function as follows Outputs RI when switch is on Otherwise it acts as a TM input signal Cables A 2 The following table shows V 35 V 36 signals with V 35 V 36 DIMs on the motherboard V 35 V 36 Motherboard Pin DCE Function Pin DTE Function Position Signal Name Position Signal Name je SHIELD FRAME 1 SHIELD FRAME GROUND GROUND 2 Krasni TRANSMITTED 2 gt TRANSMITTED DATA A DATA A 3 ee gt RECEIVED 3 r ETR RECEIVED DATA A DATA A 4 guan REQUESTTO 4 gt REQUEST TO SEND SEND Sl EE gt CLEAR TO 5 Eienenn CLEAR TO SEND SEND E oe gt DATA SET 6 7 SUDRSNEEDENEEE DATA SET READY READY To eee SIGNAL PS o ee SIGNAL GROUND GROUND 8 eu gt DATA CARRIER 8 Lassen DATA CARRIER DETECT DETECT j re TRANSMIT d en gt TRANSMIT DATA B DATA B 13 een gt TRANSMIT 5 er TRANSMIT CLOCK A CLOCK A 6 ee gt RECEIVED lo ee RECEIVED DATA B DATA B ee gt RECEIVE 1 ee RECEIVE CLOCK A CLOCK A 8 ee gt RECEIVE ae eee RECEIVE CLOCK B CLOCK B 20 esa DATA 20 mm gt DATA TERMINAL TERMINAL READY READY 1 en gt TRANSMIT 1 ie TRANSMIT CLOCK B CLOCK B OD en EXTERNAL
5. While holding onto the front panel cover e Loosen the thumbscrew by turning counter clockwise Figure 4 2 e Pull the top of the front panel cover away from the front of the unit e Lift up to disengage from bottom tabs Maintenance 4 5 Removing Replacing Front Panel Cover Example Figure 4 2 shows an example of disconnecting the front panel cover Front Panel Cover Thumbscrew x Ribbon Cable l u an Auxiliary Fan Figure 4 2 Removing the Front Panel Cover 4 6 Maintenance Removing Replacing Power Supply Removing Replacing Power Supply Introduction This section describes how to remove the power supply Remove the Power Perform these steps to remove the power supply Supply Step Action 1 Verify that the power is OFF by disconnecting the power cord 2 Remove the top cover refer to Figure 4 1 3 At the rear of the unit remove the four screws attaching the power supply to the back of the chassis Figure 4 3 Disconnect the power supply cables P1 and P2 from the motherboard e Remove the two internal screws on the fan assembly e Slide the power supply to the front to clear the lip of the chassis e Slide it out and away from the unit Replace the Power To replace the power supply reverse the steps just detailed in Remove the Power Supply Supply Cable
6. ene 1 38 10Base T Tamara 1 41 Radio Frequency Interference Regulations cicicssccscseesnssscnscsansecceessocnsosonens 1 42 Telecommunications Regulations u uu neunennnen nn 1 43 FCC and Telephone Company Procedures and Requirements 1 45 PCC INormmlion acer 1 46 Chapter 2 Preparation and Unpacking Before Installing Your PathBuilder S24x 26x and 27x Switch 2 2 REINS een ee en 2 4 The PathBuilder S24x 26x and 27x Switch Rackmount Kit 2 5 Installing the PathBuilder S24x 26x and 27x Switch in an Equipment Rack 2 8 Chapter 3 PathBuilder S24x 26x and 27x Switch Hardware Installation Seine DIF Swilehes en ea ee ae 3 3 Installing the DSU DIM nn 3 4 Configuring the PathBuilder S24x 26x and 27x Switch for DSU Operation 3 7 DSU Input and Output Signaling una 3 8 Troubleshooting DSU Installation u sans ak receiees 3 11 Installing DIME un ue 3 12 Rasta lin 2 SINE Rank 3 14 Installing VO Cards essen anna 3 16 Installing a T1 or El Dual Port Digital PBX Interface Card 3 17 Installing the TI CSU Daughter Card une 3 19 Cabling the PathBuilder S24x 26x and 27x Switch eessnee 3 22 Installing the Transeever ae 3 23 Power Up Diagnostics Verifieation u 000000000000 0000nnnnnneen nennen sans 3 24 Installing Software Options u 3 26 Full Mesh Cluster hi ea 3 27 Contents continued Vi Chapter 4 Maintenance Re
7. Introduction The tables in this appendix describe the pinouts for ports on the PathBuilder S24x 26x and 27x switch Cable pinouts for Ethernet and LAN cables are also provided The following table shows EIA 232 D signals with V 24 DIMs on the motherboard and SDB cards EIA 232 D Signals Motherboard and SDB Pin DCE Function Signal Pin DTE Function Signal Name Position Name Position 1 Shield Frame Ground Lo Shield Frame Ground 2 lt TXD 2 gt TXD 3 arm gt RXD 3 lt RXD 4 lt RTS A gt RTS DE os gt CTS 5 lt CTS 6 gt DSR 6 lt DSR 7 Signal Ground To gt Signal Ground 8 En gt DCD 8 lt DCD 14 lt DATA RESTRAINT 14 gt DATA RESTRAINT 15 gt TRANSMIT CLOCK or 15 lt TRANSMIT CLOCK V 54 Loop 3 16 gt STANDBY 16 lt STANDBY INDICATOR INDICATOR 17 gt RECEIVE CLOCK 17 lt RECEIVE CLOCK 18 lt EXTERNAL RECEIVE 18 gt EXTERNAL RECEIVE CLOCK CLOCK or V 54 Loop 3 20 lt DTR 20 mann gt DTR 21 lt V 54 Loop 2 21 ron gt V 54 Loop 2 22 lt
8. e No signal from the telephone company interface CTP The following information available from the control terminal can help you Troubleshooting troubleshoot Node Statistics Used to verify that the software version contains the DSU option modifications It also indicates if the DSU DIM is recognized by the software Port Statistics Used to verify that data is sent without error Error counts may denote an error in clocking mode configuration Port statistics also indicate if the software recognizes the DSU DIM Monitor Input and output signals determine if the DSU option is in a loopback mode requested by the remote end This would explain the inability to send data Continuous bipolar violations also indicate that the remote system is out of service DSU Internal Loopback Failure of this loopback mode indicates that the EIM module is not connected If Problems Arise If any of your equipment is operating incorrectly immediately remove it from the Installing the DSU telephone line before it harms your network If the telephone company notes the problem they may temporarily disconnect your service They will notify you in advance of the disconnection when possible If advance notification is not feasible you will be notified as soon as possible When you are notified you will be given the chance to correct the problem and be informed of your right to file a complaint with the FCC If
9. Indicates type of framing the Elcircuit uses e El_CAS Channel Associated Signaling CAS e El_CAS_CRC Channel Associated Signaling with CRC e ElI_CAS_FEBE Channel Associated Signaling with Si Far End Bit Error functionality that sends an indication in TSO that signifies receipt of a SuperFrame with a bad CRC Line Coding Range AMI HDB3 Default HDB3 Description Selects zero suppression technique used on this E1 link e AMI Alternate Mark Inversion for testing only e HDB3 High Density Bipolar 3 5 13 Configuring Channelized Data Line Impedance Range 75 120 Q Default 1200 Description Defines the line impedance as 75 Q or 120 Q Transmit Clock Range INT REC Default INT Selects the source of transmit clock Description INT From Internal Oscillator e REC Transmit Clock is derived from Receive Clock E Note Only one El port on the card can be selected for REC timing Threshold Value LCV Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Line Code Violations which are the occurrences of either a bipolar violation or excessive zeroes error events Threshold Value PCV Range 1 to 255 Default 10 Description Specifies the nu
10. The equipment must also be installed using an acceptable method of connection In some cases the company s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly telephone extension cord The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas Caution Users should not attempt to make such connection themselves but should contact the appropriate electric inspection authority or electrician as appropriate Mise en Garde Les utilisateurs ne doivent pas tablir de telles connexions eux m mes Ils doivent contacter une personne comp tente ou un lectricien Warnung Benutzer sollten nicht versuchen diese Verbindung selbst herzustellen sondern dazu die zust ndige Aufsichtsbeh rde f r Elektroinstallationen bzw einen Elektroinsta
11. e Status green When on indicates that the PathBuilder S24x 26x and 27x switch node is executing either a power up diagnostic or a software download This LED is normally off e Service yellow When on indicates a hardware failure This LED is normally off The 2 character numeric LED display provides system diagnostic codes When the Service LED is on a 2 digit code on the numeric LED display corresponds to a certain event The RESET switch resets the node Pressing the RESET switch is the equivalent of a power up operation which clears all existing calls and brings down all links The power supply is mounted at the top rear of the chassis The AC switchable power supply can operate at a nominal 110 or a nominal 230 Volts For information about maintaining and replacing the power supply refer to Chapter 4 Maintenance E Note For this unit the 48VDC Power Option is also available About the PathBuilder S24x 26x and 27x switch 1 11 Hardware Components Motherboard Parts of the This section describes some of the components that make up the PathBuilder S24x Motherboard 26x and 27x switch motherboard In addition this section describes some of the daughtercards that can be found on the motherboard shown in Figure 1 7 Power Supply DRAM SIMM Ringer Status Slots 1 and 2 Flash SIMM Slot Optional Flash SIMM Slot Port 1 Port 2 Port 3 CMEM SIMM Slot Data Compression Etherspan p A
12. 1 34 About the PathBuilder S24x 26x and 27x switch Hardware Components DSPM Host Card with FXO Analog Interface Introduction The Analog DSPM HC host card supports one analog FXO Foreign Exchange Office interface The FXO is a daughtercard that is mounted onto the DSPM HC Description The analog FXO daughtercard when mounted on the DSPM HC allows the PathBuilder S24x 26x and 27x switch to support one voice fax channel per card Each DSPM HX with FXO daughtercard combination occupies one ISA slot in the PathBuilder S24x 26x and 27x switch Function The FXO interface provides a method for connecting to the PBX simulating a phone The FXO interface e has aring voltage detector for detecting an incoming call e can generate a loop closure for acknowledging an incoming call request e can generate a call request to a PBX When You Receive When you receive a DSPM HC with FXO daughtercard do the following the Card Step Action 1 Remove the card from the packing material 2 Inventory the contents of the shipping container E Note No cables are shipped with the DSPM HC with FXO interface Power off the PathBuilder S24x 26x and 27x switch node Install the card into the PathBuilder S24x 26x and 27x switch node About the PathBuilder S24x 26x and 27x switch 1 35 Hardware Components DSPM HC with FXO Figure 1 21 shows an example of the DSPM HC with an analog
13. Action 1 Remove the card from the packing material 2 Inventory the contents of the shipping container E Note No cables are shipped with the DSPM SM card The appropriate Multi Vendor Integration Protocol 40 pin ribbon cable and other cables ship with the T1 or El dual port digital interface cards Power off the PathBuilder S24x 26x and 27x switch node Install the card into the PathBuilder S24x 26x and 27x switch node Cable the card to the T1 or El dual port digital interface cards as required About the PathBuilder S24x 26x and 27x switch 1 23 Hardware Components DSPM SM Card Illustration Jumper Locations Installing Jumpers 1 24 Figure 1 13 shows an example of the DSPM SM card MVIP Bus Interface Connector Installed MVIP Clock Termination Jumpers Not Installed Figure 1 13 DSPM SM Card Figure 1 13 shows the location of jumpers on the DSPM SM card that terminate the Multi Vendor Integration Protocol clock Figure 1 13 shows how to install the jumpers on the DSPM SM card to terminate the Multi Vendor Integration Protocol clock The DSPM SM card with the jumpers set to the installed position must be located furthest from the T1 or El card as shown in Figure 1 14 the T1 E1 card is always located in slot 8 All other DSPM SM cards must have their jumpers in the not installed position About the PathBuilder S24x 2
14. 3 3 and SDB cable information A 2 DIP switches 3 3 expansion slots 1 14 ports 1 12 replacing 4 12 switches 3 11 N Network Port 1 14 network supplier support D 2 NIS not in service 3 8 Node restarts 3 24 warmstart 3 24 Node coldstart 3 24 Node statistics 3 11 Numeric LED Display 1 11 C 1 O online technical services D 1 Operating Environment 2 2 Ordering connections facility interface code 1 45 interface type 1 45 service code 1 45 USOC jack connector 1 45 Output signals CL 3 9 CLK 3 9 IDL 3 9 RS 3 8 P Parameters T1 E1 ports 5 7 PathBuilder S24x 26x and 27x switch application examples 1 3 description 1 1 PathBuilder S24x 26x and 27x Switch Backplane 1 16 PathBuilder S24x 26x and 27x switch Cable Information A 1 PathBuilder S24x 26x and 27x switch cards removing replacing 4 9 PathBuilder S24x 26x and 27x Switch Motherboard 1 12 PathBuilder S24x 26x and 27x switch Motherboard replacing 4 12 PathBuilder S24x 26x and 27x switch Physical Dimensions B 1 Pedestal base remove 2 10 Performance Branch Node Example 1 3 Pinouts A 1 Port pinouts A 1 Ports 1 12 function 1 15 network 1 14 numbers 1 14 serial 1 14 statistics 3 11 Power LED 1 11 Power Requirements B 1 Index 3 Power Supply 1 11 removing replacing 4 7 R Rack Mount configuration 1 8 installation 2 5 2 8 parts 2 6 Radio Frequency Interference Regulations 1 42 RAM 1 12 installation 3 14 Regional Concentrator Example
15. Refer to ANSI TIA EIA 568A and the following references e CSMA CD Access Method and Physical Layer Specifications IEEE standard 802 3 1992 e Draft supplement to IEEE standard 802 3 System Considerations for Multi Segment 10B S Baseband Networks Chapter 13 and Medium Attachment Unit and Baseband Medium Specification Type 10BaseT Chapter 14 p802 3i 1990 The following table shows the Ethernet RJ 45S connector signals Pin Signal 1 Transmit 2 Transmit 3 Receive 6 Receive The AIU cable uses male DB 15 to female DB 15 connectors with slide latches in a straight through connection The twisted pair combinations are 1 2 3 6 and 4 5 and may be used for Ethernet This cable may have a maximum length of up to 50m and must conform to the 802 3 10BASES specification The following table shows the Ethernet DB 15 connector signals Pin Signal Shield Collision Transmit Shield Receive Ground Shield OO CO DW MN BB WwW dN m Collision Transmit Shield Cables Cables Ethernet Cable Pinouts Pin Signal 12 Receive 13 12V 14 Shield A 7 Ethernet Cable Pinouts A 8 Cables Overview Physical Specifications Power Requirements Environmental Limits Appendix B PathBuilder S24x 26x and 27x Switch Specifications The following section
16. This is where the real time clock is located e Data Compression This is optional SIMM that is used for data compression functions A Caution Some components used in the PathBuilder S24x 26x and 27x switch are sensitive to static electric discharges static electric discharges can cause damage to internal components Use proper handling and grounding precautions whenever handling cards and components A Mise en Garde Certains composants du PathBuilder S24x 26x and 27x switch sont sensibles aux d charges lectrostatiques qui peuvent les endommager Prenez les dispositions et pr cautions de mise la terre n cessaires lors de la manipulation de cartes et de composants A Vorsicht Einige im PathBuilder S24x 26x and 27x switch verwendeten Komponenten sollten keinen elektrostatischen Entladungen ausgesetzt werden durch die interne Bauteile besch digt werden k nnen Wenden Sie die entsprechenden Ma nahmen zur Erdung und zum Schutz vor statischen Ladungen bei der Handhabung von Karten und Komponenten an 3 14 PathBuilder S24x 26x and 27x Switch Hardware Installation Installing SIMMs SIMM Location Figure 3 5 shows the location of the Single In line Memory Module SIMM slots on the PathBuilder S24x 26x and 27x switch motherboard Insert SIMM into socket at a slight angle Data Compression SIMM Optional Flash SIMM Locking Tabs Processor Slots CMEM SIMM Slot
17. or the DSU option is in DSU Loopback mode or if idle codes are received NIS is listed as high H This signal is used to determine if the other end of the connection is available BPV Bipolar Violation This signal is H during normal operation When the signal is L it indicates that some type of bipolar violation was received by the DSU option The signal toggles during a DSU loopback condition DL DSU Loopback This signal is normally H An L indicates that a DSU loopback mode is entered C Positive Sealing Current This signal is H if the DC current on the telephone company interface is not in the positive direction C Negative Sealing Current This signal is H if the DC current on the telephone company interface is not in the negative direction An L indicates that the DSU option has detected a negative sealing current and is therefore performing a CSU loopback Note When both C and C are H it indicates that no sealing current exists This is often the case when connected to other DSU type hardware Normally the signal for C is L when connected to central office equipment OCU hardware Output Signals Although you cannot directly access the output signals they are manipulated by the DSU option software and may be useful for informational purposes The following table describes the output signals Signal Description RS
18. the network Choose a site for your PathBuilder S24x 26x and 27x switch that is within 6 feet 1 8m of an appropriate power source Depending on your application and the country in which the PathBuilder S24x 26x and 27x switch will operate this may be a grounded 115 or 230 VAC outlet A Caution The voltage select switch on the back of the power supply must be set for 230 VAC for use where applicable The area selected should be free of accumulated dust and environmental extremes The acceptable temperature range for operating the unit is 32x to 122xF 0x to 50xC at sea level Relative humidity should not exceed 90 noncondensing Allow at least 12 inches 30 5 cm in back of the unit for cable clearance and air circulation A Mise en Garde Le commutateur de s lection de tension l arriere du bloc d alimentation doit tre sur la position 230 VAC tension courant alternatif pour une utilisation appropri e Choisissez un emplacement propre et s r dont la temp rature se situe entre 0 et 50 degr s Celsius 32 et 122 degr s Fahrenheit au niveau de la mer L humidit ne doit pas exc der 90 sans condensation Laissez un espace d au moins 30 5 cm 12 pouces derri re l unit amp pour les cables et la circulation de P air A Vorsicht Der Spannungsumschalter auf der R ckseite des Netzteils mu f r die entsprechenden L nder auf 230 VAC eingestellt sein Der Betriebsort sollte staubfrei und keine
19. 1 Jumper 4 Wire 600 2 Wire 600 2 Wire UK 2 Wire Number Complex Germany Complex Jil 600 600 COM COM J12 4W 2W 2W 2W J13 Don t Care Don t Care UK Germany Default Default Germany Germany J14 600 600 COM COM J15 4W removed 2W installed 2W installed 2W installed Jumpers J21 through J25 are associated with Port 2 Jumper 4 Wire 600 2 Wire 600 2 Wire UK 2 Wire Number Complex Germany Complex J21 600 600 COM COM J22 4W 2W 2W 2W J23 Don t Care Don t Care UK Germany Default Default Germany Germany J24 600 600 COM COM J25 4W removed 2W installed 2W installed 2W installed About the PathBuilder S24x 26x and 27x switch 1 29 Hardware Components Complex Setting jumpers for two wire UK complex and two wire Germany complex Impedance for UK impedance as noted in the Jumper Definitions section above matches the and Germany impedance required in each country respectively Refer to Figure 1 15 and Figure 1 17 370 620 nf Figure 1 16 UK Complex Impedance 220 820 Spf Figure 1 17 Germany Complex Impedance 1 30 About the PathBuilder S24x 26x and 27x switch Hardware Components Jumper Locations Set the jumpers to the positions as shown in Figure 1 18 15 ort 1 s 7 z 0 7 A Eg 5 2W 58 4 an A Sm amp z5 N
20. 1 4 Removing Pedestal Base 2 10 SIMMs 3 15 Removing Replacing cover 4 3 Front Panel Cover 4 5 Lithium Battery 4 14 PathBuilder S24x 26x and 27x Switch Cards 4 9 Power Supply 4 7 Replacing PathBuilder S24x 26x and 27x switch Motherboard 4 12 Reset Switch 1 11 returning products for repair D 4 RFI Regulations 1 42 RS reset 3 8 S Serial Port 1 14 Serial Network Ports 1 14 Service LED 1 11 Setting the switches 3 6 Signal Quality Error SQE 1 9 1 41 SIMM installation 3 14 3 15 location 3 15 removal 3 15 slots 1 13 Single in line memory module see SIMM Software options installation 3 26 Software Serial Number SSN 1 13 Special notices description vii Start cold 3 24 default node command 3 25 warm 3 24 Index 4 Statistics Channelized Data 5 1 Status LEDs 1 11 Switch Block Settings 3 6 T T1 Dual Port Digital PBX Interface Card cables required 1 18 description 1 9 1 17 DIP switches location 1 18 setting 1 18 functions provided 1 17 LED descriptions 1 19 slot restriction 1 18 T1 CSU Daughter Card 1 18 T1 E1 connections Channelized Data 5 5 technical support 3Com URL D 1 bulletin board service D 2 fax service D 2 network suppliers D 2 product repair D 4 Telecommunications Regulations 1 43 Telephone Company information 1 46 Temperature operating B 1 Top Cover removing replacing 4 3 Transceiver installation 3 23 Troubleshooting DSU internal loopback 3 11 guidelines 3 11 node stat
21. 1 second Ll OFF OFF Load Phase 1 FLASH IPL decompresses and loads the FBIST image 1 second Rotating segments ON OFF FBIST lamp test 2 seconds L2 OFF OFF Load Phase 2 FLASH IPL decompresses and loads the ONS image several seconds L3 OFF OFF Load Phase 3 STARTUP inventories the modules in ONS image 3 seconds L4 OFF OFF Load Phase 4 SYSINIT inits memory mgmt and all ONS modules 10 seconds CR OFF ON PathBuilder S24x 26x and 27x switch has crashed Blank with flashing OFF OFF Normal system operation dashes m Note During a warm start display sequencing starts with the L2 code PathBuilder S24x 26x and 27x Switch Error Codes Online Technical Services World Wide Web Site 3Com FTP Site Technical Support Appendix D Technical Support 3Com provides easy access to technical support information through a variety of services This appendix describes these services Information contained in this appendix is correct at time of publication For the very latest 3Com recommends that you access the 3Com Corporation World Wide Web site 3Com offers worldwide product support 24 hours a day 7 days a week through the following online systems e World Wide Web site e 3Com FTP site e 3Com Bulletin Board Service 3Com BBS 3ComFacts automated fax service Access the latest networking information on the 3Com Corporation World Wide Web site by entering the URL int
22. 995014 Germany 0130 821502 Spain 900 983125 Hungary 00800 12813 Sweden 020 795482 Ireland 1 800 553117 Switzerland 0800 55 3072 Israel 177 3103794 U K 0800 966197 Italy 1678 79489 Latin America Argentina 541 312 3266 Colombia 571 629 4847 Brazil 55 11 523 2725 ext 422 Mexico 01 800 849 2273 North America Technical Support 1 800 NET 3Com 1 800 638 3266 D 3 Returning Products for Repair Before you send a product directly to 3Com for repair you must first obtain a Return Materials Authorization RMA number Products sent to 3Com without RMA numbers will be returned to the sender unopened at the sender s expense To obtain an RMA number call or fax Country Telephone Number Fax Number Asia Pacific Rim 65 543 6342 65 543 6348 Europe South Africa and Middle East 011 44 1442 435860 011 44 1442 435718 From the following European countries you may call the toll free numbers select option 2 and then option 2 Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U K Latin America U S A and Canada 3 26 98 D 4 06 607468 0800 71429 800 17309 0800 113153 0800 917959 0130 821502 00800 12813 1800553117 177 3103794 1678 79489 0800 0227788 800 11376 00800 3111206 05 05313416 0800 995014 900 983125 020 795482 0800 55 3072 0800 966197 1 408 326 2927 1 800 876 3266 op
23. CTP cabling 3 22 D Data Interface Modules see DIM Default Node Command Start 3 25 Diagnostics menu 3 9 power up 3 24 Diagnostics menu 3 9 DIM 1 15 installation 3 5 3 12 removal 3 13 DIMs and Cable Connection 1 15 DIP Switches motherboard 3 3 setting 3 3 DL DSU loopback 3 8 DRAM 1 12 DSPM E amp M Card Index 1 cables required 1 26 description 1 10 1 26 example of figure 1 27 functions provided 1 26 jumpers defaults 1 29 definitions 1 29 for UK and Germany two wire complex impedance 1 30 installing 1 31 locations 1 31 DSPM FXS Card cables required 1 32 description 1 32 example of figure 1 33 1 36 functions provided 1 9 1 32 DSPM HC Card with FXO Interface description 1 35 example of figure 1 36 function 1 35 jumpers 1 37 LEDs 1 36 DSPM SM Card cables required 1 25 cabling to T1 E1 cards 1 25 description 1 23 example of figure 1 24 jumpers installing 1 24 locations 1 24 DSU operation 3 7 signalling 3 8 DTE 3 5 E E1 Dual Port Digital PBX Interface Card description 1 20 DIP switches location 1 21 settings 1 22 example of figure 1 21 LED descriptions 1 22 slot restriction 1 20 Electromagnetic radiation regulations 1 47 Enclosure 1 11 Ethernet Cable Pinouts A 6 Ethernet Port 4 Limitations 1 10 Expansion Card Slots 1 14 Expansion Port I O Slots 1 14 EXT clock 3 7 Index 2 F fax service 3ComFacts D 2 FCC information 1 46 regulations 1 43 FLASH SIMM 1 13 Front Panel Cover
24. DIMs on the SDB card V11 Signals SDB Pin DCE V 11 Function Pin DTE Function Position Signal Position Signal Name Name Wy I ze SHIELD ee SHIELD FRAME FRAME GROUND GROUND 2 POREERERSEEBENE T A TRANSMIT 2 _ gt TRANSMIT DATA A DATA A Ge gt R A RECEIVE 3 Fine RECEIVE DATA A DATA A 4 ETE C A CONTROLA 4 CONTROL A gt eeteeeestitees gt 1 B INDICATION 6 Kissen INDICATION B B To ee SIGNAL ee SIGNAL GROUND GROUND en gt I A INDICATION 8 ne INDICATION A A 13 SIGNAL 13 SIGNAL TIMING B TIMING B 4 ee T B TRANSMIT 14 gt TRANSMIT DATA B DATA B TS Macsi gt S A SIGNAL 3 Ze SIGNAL TIMING A TIMING A 16 ee gt R B RECEIVE 1G Sr RECEIVE DATA B DATA B 20 lt C B CONTROLB 20 gt CONTROL B 23 a X B EXTERNAL 23 gt EXTERNAL CLOCK B CLOCK B D4 ii X A EXTERNAL 24 gt EXTERNAL CLOCK A CLOCK A A 5 Ethernet Cable Pinouts Ethernet Cable Pinouts Introduction Additional Information Ethernet RJ 45S Connector Signals Ethernet DB 15 Connector Signals A 6 This cable may have a maximum length of up to 100m and must conform to the 802 3 10BaseT specification with a nominal impedance of 100 ohms Category 3 4 or 5 cable may be used Category 4 or 5 is preferred
25. FXO daughtercard Card Illustration LEDs FXO Daughtercard Port I Port 1 Remote Busy Local Busy SPM per Port 2 Port 2 Remote Busy Local Busy Pin k Pin 1 Figure 1 21 DSPM HC Card with Analog FXO Daughtercard The card contains four LEDs that can be viewed through the rear bracket LED Color LED is Indicating Port 1 Local Green On local physical connection is active offhook Busy Off local physical connection is idle onhook Port 1 Remote Green On remote end is active offhook Busy Off remote end is idle onhook Port 2 Local Green On local physical connection is active offhook Busy Off local physical connection is idle onhook Port 2 Remote Green On remote end is active offhook Busy Off remote end is idle onhook About the PathBuilder S24x 26x and 27x switch Hardware Components Jumper Locations The DSPM HC with FXO daughtercard has no jumpers that must be set About the PathBuilder S24x 26x and 27x switch 1 37 Hardware Components 48V Ringer Power Supply Card and Enclosure Introduction Description Function 48V Ring Power Supply Types Jumper Definitions Jumper Locations Installing Jumpers One 48V ringer power supply card and enclosure is required per PathBuilder S24x 26x and 27x switch node for e Analog DSPM FXS cards e DSPM E amp M cards using interface signaling types II
26. Procedure 27x switch Step Action Result 1 From the CTP Main menu select The Port Number parameter Configure gt Ports appears Enter the port number This value is 49 or 50 The Port Type parameter appears Enter T1 for a T1 connection or E1 for an E1 connection The port parameters for El or T1 appear in sequence See the Configuring T1 and El Physical Ports section on page 5 5 for details Fill in the remaining port parameters and type a semicolon lt gt Press Return at the last parameter This saves your changes Perform a Node boot This implements your changes to the Port record E Note You can perform a Node boot after configuring all the records and tables for Channelized Data operation to implement all your changes at one time if you prefer Channelized Data 5 5 Configuring Channelized Data Port Record Figure 5 2 shows the navigational path to the T1 and El configuration parameters Node nodename Address Menu Configure 1 Node 2 Port T1 Line Framing Type Line Coding Type Transmit Clock Line Build Out Facility Data Link Threshold Value LES Threshold Value LCV Threshold Value PCV Threshold Value CSS Threshold Value ES Threshold Value BES Threshold Value SES Threshold Value SEFS L Threshold Value UAS Port Number 49 to 50 Port
27. Threshold Value LES Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Line Error Seconds which are seconds in which one or more line code violation error events are detected Threshold Value LCV Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Line Code Violations which are the occurrences of either a bipolar violation or excessive zeroes error events Threshold Value PCV Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Path Coding Violations which are frame synchronization bit errors in the D4 and El noCRC formats or CRC errors in the ESF and E1 CRC formats Threshold Value CSS Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Controlled Slip Seconds which are one second intervals containing one or more controlled slips 5 9 Configuring Channelized Data Threshold V
28. Warmstart 3 24 Diagnostics run when a node is powered up Basic tests are run from PROM and more extensive diagnostics are run during startup If the node detects a lack of software it sends a message to the CTP The yellow LED lights and a 2 digit code is displayed You must initiate a software coldload if needed This is the power up sequence Function Description ROM based diagnostics Local core self tests Boots PROM checksum MPU test Program RAM test FLASH verification Checksum FLASH image Loads RAM diagnostics Uncompresses FLASH diagnostics image to RAM and executes RAM based diagnostics Tests I O cards and everything else on card Loads RAM operational Uncompresses FLASH operational software software image to RAM and executes Verifies Config database Verifies resident CMEM database The three types of restarts are e Coldstart e Warmstart e Default Node A node coldstart is similar to a power up It follows the power up sequence except that it is initiated when the operator presses the RESET button on the front panel or when certain software faults occur All calls are cleared along with Event queues A Node coldstart loads only configuration memory A node warmstart can be initiated by a software fault or an operator command It is identical to a coldstart except for the following e No diagnostic testing is performed e Code downloads are not performed unless
29. bar out from the chassis To remove an expansion card e Remove the holding screw that is to the left of the card to be removed Figure 4 5 e Disconnect any external cables attached to the card being removed e Gently pull the card away from its connectors and slide the card out Maintenance 4 9 Removing Replacing PathBuilder S24x 26x and 27x Switch Cards Example Figure 4 4 shows an example of removing the support bar Figure 4 4 Removing the Support Bar 4 10 Maintenance Removing Replacing PathBuilder S24x 26x and 27x Switch Cards Example Figure 4 5 shows an example of removing an expansion card Gently pull card from connectors and slide it out Figure 4 5 Removing an Expansion Card Replacing a Card To replace an expansion card reverse the steps just detailed in Removing an Expan sion Card When replacing cards be sure that the full size cards are engaged in the card guides in the front end of the unit Maintenance 4 11 Replacing PathBuilder S24x 26x and 27x Switch Motherboard Replacing PathBuilder S24x 26x and 27x Switch Motherboard Introduction You must first remove all the expansion cards in order to gain access to the motherboard Removing the Perform these steps to remove the motherboard Motherboard Step Action 1 Verify that the power is OFF by removing the power cord Remove the unit s top c
30. command remain disabled Port Speed Port speed for virtual ports is set from the DSO Rate parameter in the Virtual Ports Mapping Table You can set the rate of speed for traffic at 56k or 64k See the Configuring Virtual Port Mapping Table section on page 5 20 for more details 5 18 Channelized Data Configuring Channelized Data Virtual Port Record Figure 5 3 shows how to navigate the CTP hierarchy to the Port record The Port Channelized Data Number and Port Type parameters are always the first two parameters that appear in the Port record Node nodename Address blank Date Time Menu Configure Path Main 6 1 Node 2 Port Port Number 100 254 Port Type X25 or FR Figure 5 3 Port Configuration for Channelized Data Option 5 19 Configuring Channelized Data Configuring Virtual Port Mapping Table Introduction Before You Begin Function Configuration Guidelines What You See 5 20 A Tl or El digital port comprises multiple logical data channels These channels known as virtual ports are not associated with any physical slot number and have no physical I O of their own Obtain the timeslot assignments for all the remote nodes connecting to the PathBuilder S24x 26x and 27x switch from your network services provider You need this information to complete the virtual ports configuration By configuring the Virtual Port Mapping Table a time
31. in the radio interference regulations of the Canadian Department of Communications Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to take adequate measures to correct the interference at his her own expense This product was verified under test conditions that include some use of shielded DTE cable s Use of different cables will invalidate verification and increase the risk of causing interference to radio and TV reception You can obtain the proper cables from 3Com About the PathBuilder S24x 26x and 27x switch Telecommunications Regulations Telecommunications Regulations In the United States FCC rules Part 68 require that the following user instructions are provided The telephone company has the right to ask you for registration information about your equipment that is connected to the telephone line When requested you should provide your equipment s FCC registration number and ringer equivalence number REN if applicable The user instructions shall include the FCC registration number and a detailed list of all ports that connect to the network The information provided must also include USOC connector jacks the facility interface codes FOC service order codes SOCs and REN as applicable REN is used to determine the number of devices that can be connected to an analog telephone line but is generally not applicable to digital s
32. is second from the left the positive wire terminal is in the middle the ground is second from the right e Expansion Card Ports The expansion card ports differ depending on what card is installed in that slot Figure 1 10 shows the PathBuilder S24x 26x and 27x switch back panel Optional 48V Power Supply e e O Power z lt m Supply s als u N PRS 5 f 115 230 VAC Voltage Select AUI Port 4 Sul Ethernet Routing Serial Network I O Ports 1 2 3 6 Product ID Label Expansion Card Ports Slots 1 through 8 Figure 1 10 PathBuilder S24x 26x and 27x Switch Back Panel 1 16 About the PathBuilder S24x 26x and 27x switch Hardware Components TI Dual Port Digital PBX Interface Card Introduction Description Function The T1 dual port digital PBX interface card supports digital voice communications providing integrated network access The T1 interface card is installed primarily in North America and Japan A 2 megabyte T1 card is required for passing data and voice traffic 10987654321N nauan SW1 DIP Switch Bank MVIP Bus Interface Connector Port 49 LED Port 50 LED Run LED SysFail LED a Port 49 Interface Port 50 Interface ISA Bus Interface Serial Diagnostic Port Not Supported Pin 8 a Pin IM Figure 1 1
33. personnel should perform the procedure described in this section Use of this procedure by unqualified personnel could result in personal injury or equipment damage and could jeopardize your warranty and maintenance agreement The danger of explosion exists if the lithium battery is incorrectly replaced Replace the battery only with the same or equivalent type recommended by the manufacturer Discard used batteries according to the manufacturer s instructions 4 Avertissement Il y a danger d explosion s il y a remplacement incorrect de la batterie Remplacer uniquement avec une batterie du m me type ou d un type quivalent recommand par le constructeur Mettre au rebut les batteries usag es conform ment aux instructions du fabricant Warnung Explosionsgefahr bei unsachgem em Austausch der Batterie Ersatz nur durch denselben oder einen vom Hersteller empfohlenen hnlichen Typ Entsorgung gebrauchter Batterien nach Angaben des Herstellers Follow these steps to replace the battery Step Action 1 Power down the PathBuilder S24x 26x and 27x switch node 2 Remove the CMEM card refer to Figure 3 2 in Chapter 3 3 Slip the battery out from under the spring clip in the upper left hand portion of the card as shown in Figure 4 7 4 Insert a fresh battery under the spring clip making sure that the positive terminal is face up IMPORTANT This procedure will erase the CMEM 5 Reinsert the CMEM card
34. pin MVIP ribbon cable to the Multi Vendor Integration Protocol interface on the top edge of the digital PBX interface card by snapping it so that the tabs match 9 Connect the other end of the 40 pin MVIP ribbon cable to the appropriate DSPM SM cards MVIP connector by snapping it so that the tabs match 10 Replace the PathBuilder S24x 26x and 27x switch cover 11 Connect the spans to the connectors on the digital PBX interface card rear bracket 12 Plug the AC power cord in Result The LEDs on the rear bracket remain off until the card is reset and the software is downloaded after the download is complete the green RUN LED remains on PathBuilder S24x 26x and 27x Switch Hardware Installation Installing a T1 or E1 Dual Port Digital PBX Interface Card Installing the T1 CSU Daughter Card Introduction This section explains how to install a T1 CSU Daughter Card onto a T1 Dual Port Card When installing the T1 CSU card be certain that the T1 Dual Port card is not next to an FXO FXS or E amp M card Because these cards have components on both sides they might come in contact with the T1 CSU card damaging both cards Caution Observe antistatic precautions whenever handling interface cards to avoid damaging sensitive components Wear a ground strap connected to a grounded equipment frame whenever handling the interface card always transport the card in an antistatic bag A Mise en Garde Prenez des pr caut
35. removing replacing 4 5 H Hardware 48V ringer power supply card and enclosure 1 38 DSPM E amp M Card 1 26 DSPM FXS card 1 23 1 32 1 35 El dual port digital PBX interface card 1 9 1 20 TI dual port digital PBX interface card 1 17 Hardware Components 1 8 1 9 10 Base T Transceiver 1 41 back panel 1 16 check 2 4 CMEM SIMM 1 13 enclosure 1 11 FLASH SIMM 1 13 front panel 1 11 LEDs 1 11 motherboard 1 12 numeric display 1 11 ports 1 12 power supply 1 11 T O Expansion Card Slots 1 14 T O Ports cabling 3 22 IDL idle 3 9 Input signals BPV 3 8 C 3 8 DL 3 8 NIS 3 8 Installation DIM module 3 12 guidelines 3 5 VO card 3 16 rack mount 2 5 2 8 SIMMs 3 14 3 15 software options 3 26 the PathBuilder S24x 26x and 27x switch 2 2 transceiver 3 23 Installing T1 dual port digital PBX interface card 3 17 INT providing clock to the network 3 7 J Jumpers on 48V ringer power supply card definitions 1 38 installing 1 38 locations 1 38 on DSPM E amp M card defaults 1 29 definitions 1 29 for UK complex and two wire Germany complex impedance 1 30 installing 1 31 locations 1 31 on DSPM SM card installing 1 24 locations 1 24 L LAN Connection 3 22 LEDs 1 11 DSPM E amp M card 1 28 DSPM FXS card 1 34 1 36 E1 dual port digital PBX interface card 1 22 Lithium battery 4 14 removing replacing 4 14 LL local loopback 3 8 Loopback 3 10 Mesh Network cabling 3 27 diagram 3 28 Motherboard 1 12
36. switch 1 port 1 and switch 2 port 2 Refer Switches 1 and2 to Figure 3 1 Switch Settings for Motherboard Switches 1 and 2 Set Switch To For 1 5 ON EIA 232 D DIM 6 8 OFF 1 5 OFF V 11 and V 35 DIMs 6 8 ON 9 ON Ring Indicator DCE 10 ON Make Busy DTE PathBuilder S24x 26x and 27x Switch Hardware Installation 3 3 Installing the DSU DIM Installing the DSU DIM Introduction You can install up to two DSUs for each PathBuilder S24x 26x and 27x switch platform using both Ports 1 and 2 DSU DIM Example Figure 3 2 shows how to install the DSU DIM DSU DIM It is important that the Top of Unit square markings on the DIM are on the same side as the round markings on the board Figure 3 2 DSU DIM Installation 3 4 PathBuilder S24x 26x and 27x Switch Hardware Installation Installing the DSU DIM Install the DSU DIM Perform these steps to install the DSU DIM Step Action Result Description 1 Install the DSU DIM in the DTE position only see Figure 3 2 The DSU option does not operate if the DIM is installed in the DCE position Set the switches properly Refer to Switch Settings for Motherboard Switches 1 and 2 Plug the EIM into the backplane connector corresponding to the DIM port containing the DSU DIM Port 1 or 2 Verify that the EIM is only connected to a port that has a DSU DIM installed Tighten the connector mounting screws to provide prope
37. the PathBuilder S24x 26x and 27x switch Integral DSU needs repair 3Com or an authorized representative of 3Com can repair it For information contact 3Com Technical Support at 1 800 NET 3Com 1 800 638 3266 PathBuilder S24x 26x and 27x Switch Hardware Installation 3 11 Installing DIMs Installing DIMs Introduction There are two Data Interface Modules DIMs on both the PathBuilder S24x 26x and 27x switch motherboard Each DIM is a 64 pin dual in line module that can be repositioned so that Ports 1 or 2 act as either DCE or DTE ports One DIM corresponds to Port 1 and the other to Port 2 The DIMs on the motherboard are factory set in the DTE position Example Figure 3 4 shows an example of installing a DIM Motherboard Port 2 Figure 3 4 Installing a DIM 3 12 PathBuilder S24x 26x and 27x Switch Hardware Installation Installing a DIM Installing DIMs To install the DIM insert it into the desired DTE or DCE location Be sure the pins are seated firmly in the sockets and are not bent Caution Some components used in the PathBuilder S24x 26x and 27x switch are sensitive to static electric discharges static electric discharges can cause damage to internal components Use proper handling and grounding precautions whenever handling cards and components Mise en Garde Certains composants du PathBuilder S24x 26x and 27x switch sont sensible
38. the user selectable Signal Quality Error SQE function See Figure 1 24 Some network devices do not recognize this signal If the attached network device does not recognize this SQE signal set the switch to Off RJ45 Connector SQUE Switch 15 Pin D Type Connector Figure 1 24 10BaseT Transceiver The 10BaseTransceiver can be connected to the Ethernet LAN ELAN card or the PathBuilder S24x 26x and 27x switch s Port 4 About the PathBuilder S24x 26x and 27x switch 1 41 Radio Frequency Interference Regulations Radio Frequency Interference Regulations Introduction FCC Canadian DOC General 1 42 This section explains the radio frequency interference regulations This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules CISPR Publication 22 85 and EN 55022 87 These limits are designed to provide reasonable protection against interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause interference to radio communications Changes or modifications not expressly approved by 3Com could void the user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out
39. to Follow these steps to configure virtual ports between the remote nodes and the PathBuilder S24x 26x and 27x switch Step Action Result 1 From the CTP Main menu select The Ports menu appears as shown Configure gt Ports in Figure 5 3 on page 5 19 2 Enter the Port Number This value The Port Type parameter appears should be 100 or above to configure a virtual port 3 Enter X25 for an X 25 connection or The standard port parameters for FR for a Frame Relay connection X 25 or Frame Relay appear in sequence Refer to the appropriate manuals for details 4 Fillin the remaining parameters and This saves the record in CMEM enter a semicolon lt gt Press Return when you are finished 5 Perform a Node boot This implements the configuration changes you made Booting Virtual Boot a virtual port by entering the virtual port number and issuing a port boot Ports command Booting a virtual port brings down SVCs associated with that virtual port but does not affect the operation of the T1 or El port or of any other virtual ports Enabling Disabling Enabling or disabling a virtual port has no effect on a T1 or El port or other virtual Virtual Ports ports However disabling a T1 or El port makes all associated virtual ports unusable Enabling a T1 or El port makes all associated virtual ports usable their SVCs can be established Virtual ports previously disabled via the disable port
40. 1 T1 Dual Port Digital PBX Interface Card Each T1 dual port digital PBX interface card uses an Industry Standard Architecture ISA bus interface and a Multi Vendor Integration Protocol MVIP bus interface The MVIP bus interface provides multiplexed digital access within the PathBuilder S24x 26x and 27x switch chassis T1 dual port digital PBX interface cards provide the digital interfaces for connections to a PBX The T1 dual port digital PBX interface cards bring PCM voice and channel signaling into the node The PCM voice data and voice signaling is routed to a DSPM SM card over the MVIP bus for compression and transmission to the remote end About the PathBuilder S24x 26x and 27x switch 1 17 Hardware Components Slot Restriction DIP Switch Location DIP Switch Settings T1 CSU Daughter Card Required Cables The T1 dual port digital PBX interface card occupies slot 8 in the PathBuilder S24x 26x and 27x switch chassis The T1 dual port digital PBX interface card contains a single DIP switch bank SW1 used to assign the card s I O base address Set the DIP switches on the T1 dual port digital PBX interface card as shown in Figure 1 11 The T1 CSU Daughtercard provides a 1 544 MHz point to point interface for North American service that conforms to AT amp T 62411 62421 standard The card is FCC Part 68 Registered and uses eternal clocking derived from the telephone network On
41. 24x 26x Pedestal Base and 27x switch Remove the pedestal base by removing the four Phillips head screws from the bottom Figure 2 2 Pedestal Base Removal of the PathBuilder S24x 26x and 27x Switch Preparation and Unpacking Installing the PathBuilder S24x 26x and 27x Switch in an Equipment Rack Steps for Rackmount Assembly Bolt the Mounting Shelf to the Rear Mounting Brackets using the four 10 32 x 38 screws supplied with the kit Do this by inserting the screws from inside the rack through the Mounting Shelf slot and through the appropriate hole in the Rear Mounting bracket Fasten the adjustable Rear Mounting brackets to each side of the equipment rack using four 12 24 x 50 screws 04 a x 38 Crews p Figure 2 3 shows the steps for rackmount assembly Equipment Rack Rail Adjustable Rear Mounting bracket Mounting Shelf Insert the Mounting Shelf in the desired location and secure it to the front rail using four 12 24 x 50 screws supplied with your Q equipment rack Figure 2 3 PathBuilder S24x 26x and 27x Switch Rackmount Assem bly Preparation and Unpacking Installing the PathBuilder S24x 26x and 27x Switch in an Equipment Rack Installing the PathBuilder S24x 26x and 27x Switch Figure 2 4 shows the installation of the PathBuilder S24x 26x and 27x switch in the rackmount assembly PathBuilder S24x 26x and 27x switc
42. 29 ee gt EXTERNAL TRANSMIT TRANSMIT CLOCK B CLOCK B Da a ne EXTERNAL OA Vs gt EXTERNAL TRANSMIT TRANSMIT CLOCK A CLOCK A Cables Cables The following table shows V 35 V 36 signals with V 35 V 36 DIMs on the SDB card V 35 V 36 SDB Pin DCE Function Pin DTE Function Signal Position Signal Name Position Name l es SHIELD FRAME 1 SHIELD FRAME GROUND GROUND gt eats TRANSMITTED 2 _ gt TRANSMITTED DATA A DATA A B ae gt RECEIVED 3 Lehs RECEIVED DATA DATA A A 4 Lea REQUEST TO 4 ss gt REQUEST TO SEND SEND 5 oje gt CLEAR TO 5 esanian CLEAR TO SEND SEND 6 gt DATA SET 6 lt DATA SET READY READY T eee SIGNAL To i SIGNAL GROUND GROUND goo eee gt DATA CARRIER 8 ee DATA CARRIER DETECT DETECT 13 TRANSMIT 13 gt TRANSMIT CLOCK B CLOCK B 4 eo TRANSMIT 14 u gt TRANSMIT DATA DATA B B 3 er gt TRANSMIT 15 TRANSMIT CLOCK A CLOCK A 16 gt RECEIVED 6 eu RECEIVED DATA DATA B B 7 s gt RECEIVE 17 Je RECEIVE CLOCK CLOCK A A 18 N A 18 lt LOOP 3 V 36 only I9 ee RECEIVE 19 esse gt RECEIVE CLOCK CLOCK B B DO ee DATA DQ ee gt DATA TERMINAL TERMINAL READY READY 21 N A 21 lt LOOP 3 V 36 only 23 use EXTERNAL 3 us gt EX
43. 300680 Japan Up to 14 400 bps Mexico Up to 28 800 bps P R of China Up to 14 400 bps Taiwan Up to 14 400 bps R O C U K Up to 28 800 bps U S A Up to 28 800 bps Access by Digital Modem 81 3 3345 7266 52 5 520 7835 86 10 684 92351 886 2 377 5840 44 1442 438278 1 408 980 8204 ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to 56 Kbps To access the 3Com BBS using ISDN use the following number 1 408 654 2703 The 3ComFacts automated fax service provides technical articles diagrams and troubleshooting instructions on 3Com products 24 hours a day 7 days a week Call 3ComFacts using your Touch Tone telephone 1 408 727 7021 If additional assistance is required contact your network supplier Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services including network planning installation hardware maintenance application training and support services When you contact your network supplier for assistance have the following information ready e Product model name part number and serial number e A list of system hardware and software including revision levels e Diagnostic error messages e Details about recent configuration changes if applicable Technical Support If you are unable to contact your network supplier see the following section on how to contact 3Com Support from If you are unable to obtain
44. 3Com Corporation PathBuilder S24x 26x and 27x Switch Installation Manual Notice 1998 3Com Corporation 5400 Bayfront Plaza Santa Clara CA 95052 8145 408 326 5000 All rights reserved Printed in U S A Portions reprinted with the permission of Motorola Inc Restricted Rights Notification for U S Government Users The software including firmware addressed in this manual is provided to the U S Government under agreement which grants the government the minimum restricted rights in the software as defined in the Federal Acquisition Regulation FAR or the Defense Federal Acquisition Regulation Supplement DFARS whichever is applicable If the software is procured for use by the Department of Defense the following legend applies Restricted Rights Legend Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 If the software is procured for use by any U S Government entity other than the Department of Defense the following notice applies Notice Notwithstanding any other lease or license agreement that may pertain to or accompany the delivery of this computer software the rights of the Government regarding its use reproduction and disclosure are as set forth in FAR 52 227 19 C Unpublished rights reserved under the copyright laws of th
45. 6x and 27x switch Hardware Components Cables Required No cables ship with the DSPM SM card however the DSPM SM card must be cabled to the T1 or El dual port digital interface using a Multi Vendor Integration Protocol 40 pin ribbon cable as Figure 1 14 shows To support 12 voice channels for instance you need three DSPM Server Module cards Note The DSPM SM card with the jumpers set to the installed position must be located furthest away from the El or T1 card the top card as shown in this figure Restricted to Slot 8 Figure 1 14 Cabling T1 E1 Card to DSPM SM Cards About the PathBuilder S24x 26x and 27x switch 1 25 Hardware Components DSPM Card with Analog E amp M Interface Introduction Description Function 48V Ringer Power Supply Card Required Cables Required When You Receive the Card 1 26 The DSPM E amp M card supports two analog E amp M interface voice channels The Analog DSPM E amp M card allows the PathBuilder S24x 26x and 27x switch to support up to two 2 voice fax channels per card Each E amp M card occupies one ISA slot in the PathBuilder S24x 26x and 27x switch The PathBuilder S24x 26x and 27x switch E amp M card supports both two and four wire interfaces The DSPM E amp M card allows a PBX to attach to one of its two connectors The DSPM E amp M card requires installation of a 48V ringer power supply card and enclosure into the Pat
46. C Port 3 T PB 200 Rear View Port 1 C N T DTE Port PB S200 C DCE Port Port 2 C Port 3 T Rear View Port2 C Port 3 T Figure 3 8 Mesh Diagram 3 28 PathBuilder S24x 26x and 27x Switch Hardware Installation Overview Introduction Maintenance Chapter 4 Maintenance This chapter contains procedures to remove replace the PathBuilder S24x 26x and 27x switch components 4 Warning Only trained qualified technicians should perform procedures outlined in this manual 3Com PathBuilder S200 series switch daughtercards and DIMs are sensitive to static discharge which can damage components Trained qualified technicians will use proper handling and grounding precautions when handling a 3Com PathBuilder S200 series switch daughtercard or DIM 4 Avertissement Seuls des techniciens qualifi s doivent mettre en pratique les proc dures d crites dans ce manuel Les cartes fille 3Com PathBuilder S200 series switch et les DIM sont sensibles aux d charges statiques qui peuvent endommager les composants Les techniciens form s et qualifi s prendront les dispositions et pr cautions de mise a la terre n cessaires lors de la manipulation de cartes fille 3Com PathBuilder S200 series switch et de DIM 4 Warnung Die in diesem Handbuch aufgef hrten Vorg nge sollten ausschlie lich von geschult
47. I port for routing applications 6 Control Terminal Port CTP When operating as an asynchronous interface it can support data rates up to 115 2 kbps Default CTP configuration parameters are 9600 baud 8 bit characters 1 stop bit no parity This is an EIA 232 D DCE port using a DB 25 connector Ports 1 and 2 support a DSU DIM without the use of cable adapters If cable adapters are used Ports 1 and 2 can support the following DIMs e High Speed V 36 e V 35 e V 11 1S0 4903 Each DIM port can be configured independently of the other port For example you can install two V 35 DIMs one V 35 DIM and one V 11 DIM or two V 11 DIMs The cable adapter pinouts are described in Appendix A Cables About the PathBuilder S24x 26x and 27x switch 1 15 Hardware Components Back Panel Back Panel The components of the back panel are Components e Serial Network I O Ports Ports 1 2 3 and 6 are DB 25 connectors Port 4 is a DB 15 connector e AC Power Supply The rear of the Power Supply has two male and female power source connectors one is for connection to an AC source and the other is an AC outlet along with a selectable 115 VAC or 230 VAC switch For most international usage the switch must be set for 230 VAC e DC Power Supply The unit can be shipped with the 48 VDC Power Option The terminal block of the 48VDC has 5 screws The two outermost screws are for attachment The negative wire terminal
48. III and V DSPM E amp M card with an interface signaling of type I does not require a 48V ringer power supply card and enclosure The 48V ringer power supply card comes in an enclosure which you must install in the PathBuilder S24x 26x and 27x switch if you are field upgrading to support the Voice option New PathBuilder S24x 26x and 27x switch nodes ordered with the voice option ship with the 48V ringer power supply factory installed The 48V ringer power supply card supports the following e 12 E amp M ports or 6 DSPM E amp M cards e AFXS ports or 2 DSPM FXS cards The 48V ringer power supply card rings up to four phones at a time There are two versions of the 48V ringer power supply Standard and Enhanced e The Standard 48V ringer power supply see Figure 1 22 can support two FXS cards e The Enhanced 48V ringer power supply see Figure 1 23 can support six FXS cards Available in the Fall of 1998 The 48V ringer power supply card has two sets of jumpers for various requirements e One set of jumpers to enable or disable the 48V ringer supply output should not be changed from its default setting of enabled e One set of jumpers to control the frequency of the ring supplied to the DSPM FXS card 25 Hz US or 50 Hz Europe For more information see Figure 1 22 and Figure 1 23 The jumpers for 25 or 50 Hz ring frequency are located on the 48V ringer power supply card as shown in Fig
49. IP ribbon cable Connects four or more DSPM SM cards to interconnect digital voice traffic between individual cards in the same PathBuilder S24x 26x and 27x switch node Two 8 pin modular to DB15 cables For 120 connection Two 8 pin modular to BNC cables For 75Q connection LED Status The E1 dual port digital PBX interface card contains four LEDs that can be viewed Indicators through the rear bracket LED Color LED is Indicating Port 49 Yellow OFF Normal operation ON Carrier failure on Port 49 span Port 50 Yellow OFF Normal operation ON Carrier failure on Port 50 span RUN Green OFF Card failure ON Microprocessor Activity SYSFAIL Yellow OFF Normal operation ON Card failure 1 22 About the PathBuilder S24x 26x and 27x switch DSPM SM Card Hardware Components Introduction The Digital Signal Processing Module Server Module DSPM SM supports T1 or E1 dual port digital PBX interface cards Description The DSPM SM card used at nodes with digital PBX interfaces compresses four digital voice channels It has no external I O capabilities Function PCM voice and voice signaling brought into the PathBuilder S24x 26x and 27x switch node by the T1 E1 cards is routed to a DSPM SM card over the MVIP bus for compression and transmission to the remote end When You Receive When you receive a DSPM SM card do the following the Card Step
50. Reset This output resets the DSU option hardware Its normal operating state is H LL Local Loopback When this signal is L the DSU hardware is locally looping data back to the PathBuilder S24x 26x and 27x switch hardware by way of the EIM 3 8 PathBuilder S24x 26x and 27x Switch Hardware Installation Other Reporting Differences Example of Diagnostics Menu DSU Input and Output Signaling Signal Description continued CL CSU Loopback When this signal is L the DSU hardware is looping the remote connection s receive to transmit IDL Idle An H on this signal tells the DSU hardware to send idle bipolar violations to the remote system CLK Clock Mode The signal H denotes the use of the network clock The DSU option provides the clock when this signal is L You can view these signals using the control terminal Monitor menu item on the Main menu Other differences in control terminal output are e Detailed Port Statistics show DSU input and output signaling as well as note the installed DSU DIM e Detailed Node Statistics show DSU DIM position Figure 3 3 shows the Diagnostics menu Use this menu to access the loopback options described in the next section Node nodename Address blank Date Time Menu Diagnostics Path Main 12 Local Loopback V 54 Loopback 2 V 54 Loopback 3 Fatal Error Reports Logged Alarm
51. TERNAL TRANSMIT TRANSMIT CLOCK B CLOCK B py an EXTERNAL JA Ana gt EXTERNAL TRANSMIT TRANSMIT CLOCK A CLOCK A OS een TEST MODE 25 e TEST MODE A 3 The following table shows V 11 signals with V 11 DIMs on the motherboard V11 Signals Motherboard Pin DCE V 11 Function Pin DTE Function Position Signal Position Signal Name Name E eee eee SHIELD 1 SHIELD FRAME FRAME GROUND GROUND 2 EEE EIGENE T A TRANSMIT 2 gt TRANSMIT DATA A DATA A 3 ren gt R A RECEIVE 3 een RECEIVE DATA A DATA A A DO de C A CONTROLA 4 CONTROL A gt 6 REIN gt I B INDICATION 6 lt INDICATION B B a lese SIGNAL 7 SIGNAL GROUND GROUND BS ERSTE HEBEEES gt I A INDICATION 8 lt INDICATION A A j4 Ver T B TRANSMIT 14 gt TRANSMIT DATA B DATA B iF a ee eee gt S A SIGNAL 15 lt SIGNAL TIMING A TIMING A 1G se gt R B RECEIVE 16 lt RECEIVE DATA B DATA B Jy re C B CONTROLB 20 gt CONTROL B J men gt S B SIGNAL 21 lt SIGNAL TIMING B TIMING B II Nee X B EXTERNAL 122 gt EXTERNAL CLOCK B CLOCK B OA rn X A EXTERNAL 24 gt EXTERNAL CLOCK A CLOCK A Cables Cables The following table shows V 11 signals with V 11
52. Type T1 or E1 Date Path Main 6 E1 Line Framing Type Line Coding Type Transmit Clock Line Impedance Threshold Value LES Threshold Value LCV Threshold Value PCV Threshold Value CSS Threshold Value ES Threshold Value BES Threshold Value SES Threshold Value SEFS Threshold Value UAS Threshold Value DAS Figure 5 2 Example of the Port Record for the Physical Port for T1 and E1 Connections 5 6 Channelized Data T1 Port Parameters Overview Configuration Guidelines Port Record Parameters Channelized Data Configuring Channelized Data This section describes the T1 port parameters in detail Configure a T1 Port before configuring a Virtual Port Mapping Record which maps a logical timeslot channel a virtual port to that port The following parameters are available from the T1 port record Port Number Range 49 50 Default NA Description Specifies the number of the port you are configuring and serves as the entry number for the port you are about to configure Port Type Range Voice T1 El Default Null Description Specifies the type of port you are configuring the parameter value you input for port type determines the subsequent parameters that appear next Boot Type Changes to this parameter require a Node boot to take effect Line Framing Type Range ESF SF Default ESF Description Indicates
53. UI SIMM Slot Global DRAM SIMM Slot LED Connector Port 4 Port 6 r DIMs Switch 2 Switch 1 Figure 1 7 Motherboard RAM The PathBuilder S24x 26x and 27x switch comes standard with 16 Mbytes of local DRAM for image execution and 8 Mbytes of global memory for buffer storage Ports There are four serial data port DB 25 connectors for network or access functions 2 048 Mbps e Ports 1 and 2 DB 25 are Data Interface Module DIM ports e Port 3 DB 25 is a V 36 DTE port e Port 4 DB 15 is an Ethernet AUI port Port 6 DB25 is the Control Terminal Port EIA232 1 12 About the PathBuilder S24x 26x and 27x switch Hardware Components FLASH SIMM The FLASH Single In line Memory Module SIMM holds a compressed image of the operating software This module is electrically erasable and reprogrammable An optional FLASH SIMM can be installed for backup These modules are installed in one of the SIMM slots 1 or 2 Figure 1 8 shows the SIMM Figure 1 8 FLASH SIMM E Note The chips on your SIMM may vary from the one shown inFigure 1 8 CMEM SIMM The Configuration Memory Module CMEM SIMM has 512 Kbytes of memory and provides the real time clock function The CMEM is backed up by a lithium battery in case of a power disruption Each PathBuilder S24x 26x and 27x switch has a Software Serial Number SSN burned into a PROM located on the CMEM card This SSN is used to verify the software options that are
54. ace card can only occupy slot 8 in the PathBuilder S24x 26x and 27x switch chassis About the PathBuilder S24x 26x and 27x switch Hardware Components E1 Dual Port Digital Figure 1 12 shows an example of the E1 dual port digital PBX interface card PBX Interface Card Illustration DIP Switch Location DIP Switch Settings About the PathBuilder S24x 26x and 27x switch 10987654321N TOQQQUT TTA SW1 DIP Switch Bank MVIP Bus Interface Connector EHE ht iT ml Port 49 Port 50 Alarm LED Alarm LED Run LED SysFail LED e Port 49 Interface Port 50 Interface ISA Bus Interface Serial Diagnostic Port Figure 1 12 E1 Digital PBX Interface Card The E1 dual port digital PBX interface card contains a single DIP switch bank SW1 used to assign the card s I O base address Set the switches as shown in Figure 1 12 1 21 Hardware Components Required cables The following cables including two pigtail cables ship with the E1 dual port digital PBX interface card and are required to cable the El card to the DSPM SM cards in the PathBuilder S24x 26x and 27x switch node Cable Description Function One 4 position 40 pin MVIP ribbon cable Connects up to three DSPM SM cards to interconnect digital voice traffic between individual cards in the same PathBuilder S24x 26x and 27x switch node One 8 position 40 pin MV
55. alue ES Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Error Seconds which have e one or more path code violations e one or more out of frame defects e one or more controlled slip events e a detected alarm indication signal defect For D4 and E1 CRC links the presence of bipolar violations also triggers an errored second Threshold Value BES Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Bursty Errored Seconds which have e fewer than 320 and more than 1 path coding violation error events e no severely errored frame defects e no detected incoming alarm indication signal defects Controlled slips are not included BES is not incremented during an unavailable second Channelized Data Configuring Channelized Data Threshold Value SES Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Severely Error Seconds Severely Errored Seconds for ESF signals have e 320 or more path code violation error events e one or more out of frame defe
56. an be physically hurt Avertissement Un avertissement constitue le message le plus s rieux indiquant que vous pouvez subir des blessures corporelles Warnung Eine Warnung ist der ernsthafteste Hinweis auf K rperverletzungsgefahr PathBuilder is a trademark of 3Com Corporation Chapter 1 About the PathBuilder S24x 26x and 27x switch Overview What is the The PathBuilder S24x 26x and 27x switch is a multi protocol LAN WAN PathBuilder S24x PathBuilder S200 series switch featuring a high speed processor and coprocessor 26x and 27x coupled with 12 Mbytes of on board memory standard Designed to address the switch needs of large branch offices with higher throughput needs and regional concentration sites the PathBuilder S24x 26x and 27x switch is available in rack mount configurations The PathBuilder S24x 26x and 27x switch s high performance capabilities are uniquely matched to branch applications with high traffic requirements As aregional concentrator the PathBuilder S24x 26x and 27x switch accepts traffic from many branch locations into a single site and transfers the traffic to other devices at the regional or central site The PathBuilder S24x 26x and 27x switch supports both Frame Relay and X 25 About the PathBuilder S24x 26x and 27x switch 1 1 Meshed Cluster A unique feature of the PathBuilder S24x 26x and 27x switch is its ability to Application support full meshed cluster applicatio
57. assistance from the 3Com online technical resources or 3Com from your network supplier 3Com offers technical telephone support services To find out more about your support options please call the 3Com technical telephone support phone number at the location nearest you When you contact 3Com for assistance have the following information ready e Product model name part number and serial number e A list of system hardware and software including revision levels e Diagnostic error messages e Details about recent configuration changes if applicable Below is a list of worldwide technical telephone support numbers Country Telephone Number Country Telephone Number Asia Pacific Rim Australia 1 800 678 515 PR of China 10800 61 00137 or Hong Kong 800 933 486 021 6350 1590 India 61 2 9937 5085 Singapore 800 6161 463 Indonesia 001 800 61 009 S Korea Japan 0031 61 6439 From anywhere in S Korea 82 2 3455 6455 Malaysia 1800 801 777 From Seoul 00798 611 2230 New Zealand 0800 446 398 Taiwan R O C 0080 611 261 Pakistan 61 2 9937 5085 Thailand 001 800 611 2000 Philippines 1235 61 266 2602 Europe From anywhere in Europe call 31 0 30 6029900 phone 31 0 30 6029999 fax From the following European countries you may use the toll free numbers Austria 06 607468 Netherlands 0800 0227788 Belgium 0800 71429 Norway 800 11376 Denmark 800 17309 Poland 0800 3111206 Finland 0800 113153 Portugal 05 05313416 France 0800 917959 South Africa 0800
58. before the unit is shipped from the factory In addition to the enclosure and its components you may find within the shipping carton a sleeve containing the power cord if appropriate for your installation Thoroughly check the cartons and their contents for damage in shipment If damage has occurred contact the shipping agent Next lift the unit from the shipping carton and remove the foam packing material Direct any questions about missing parts to your 3Com representative Preparation and Unpacking The PathBuilder S24x 26x and 27x Switch Rackmount Kit The PathBuilder S24x 26x and 27x Switch Rackmount Kit Introduction You can install the PathBuilder S24x 26x and 27x switch in a standard Electronics Industry Association EIA 19 inch equipment rack EIA Rackmount Kit The PathBuilder S24x 26x and 27x switch EIA Rackmount kit contains the following components One Mounting Shelf Two adjustable Rear Mounting brackets for rear rail attachment Four Phillips head 10 32 x 38 long screws with integral lock washers Eight Phillips head 12 24 x 50 long screws for front and rear rail attachment Three longer 6 screws When Checking the Be aware of the following issues when checking the components of your rackmount EIA Rackmount Kit kit Preparation and Unpacking The Mounting Shelf and adjustable Rear Mounting brackets ship fastened together at the Mounting bracket s front most adjustment hole This prevents
59. ch hardware and software features and FCC and Telephone Company procedures and requirements Chapter 2 Setting up a PathBuilder S24x 26x and 27x switch including site preparation how to unpack the unit and installation procedures Chapter 3 Installing the hardware on the PathBuilder S24x 26x and 27x switch powerup and verification and installa tion of software options Chapter 4 Maintaining the PathBuilder S24x 26x and 27x switch including replacement of cards and motherboard Chapter 5 Channelized Data option for the PathBuilder S24x 26x and 27x switch Appendix A Cable pinouts for Ethernet Appendix B Product specifications Appendix C Error Codes Appendix D Technical Support The following notices emphasize certain information in the manual Each serves a special purpose and is displayed in the format shown Caution Caution provides you with information that if not followed can result in damage to software hardware or data Mise en Garde Une mise en garde vous fournit des informations qui si elles ne sont pas observ es peuvent se traduire par des dommages pour le logiciel le mat riel ou les donn es Vil About This Manual continued Trademarks Vili Vorsicht Ein Vorsichtshinweis macht Sie darauf aufmerksam da Nichtbefolgung zu Software Hardware oder Datensch den f hren kann Warning Warning is the most serious notice indicating that you c
60. ction VO Interface Port Connection Network Manager Connection LAN Connection Procedure 3 22 This section describes the connections for e Control Terminal Port CTP e I O Interface cards e Network Manager e LAN e An external power source The CTP is set as Port 6 on the rear of the PathBuilder S24x 26x and 27x switch It is a fixed EIA 232 D DCE interface terminating on a DB 25 connector No special cabling is required Typically a straight through DB 25 male to DB 25 male cable is required for connection to a terminal device Three of the I O ports on the backplane of the PathBuilder S24x 26x and 27x switch chassis are DB 25 female connectors One of the I O ports is a DB 15 female connector You do not need additional cables if the DIM based ports Ports 1 and 2 have EIA 232 D DIMs installed The PathBuilder S24x 26x and 27x switch supports direct manager connection using the CTP There is a serial interface connection for the SNMP manager You can attach the control terminal to any asynchronous PAD port You can connect a PathBuilder S24x 26x and 27x switch to a LAN with a router The router can be either an external router connected to a PathBuilder S24x 26x and 27x switch using a Frame Relay connection or a PathBuilder S200 series switch internal router For more LAN connection information refer to Appendix A Appendix Follow these steps to connect to an external power source St
61. cts e a detected alarm indication signal defect Severely Errored Seconds for E1 CRC signals have e 832 or more path code violation error events e one or more out of frame defects Severely Errored Seconds for El noCRC signals have e 2048 line coding violations or more Severely Errored Seconds for D4 signals have e a count of one second intervals with framing error events e an out of frame defect e 1544 line coding violations or more Controlled slips are not included BES is not incremented during an unavailable second Threshold Value SEFS Range 1 to 255 Default 1 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Severely Error Framing Seconds which have e one or more out of frame defects e a detected alarm indication signal defect Channelized Data Configuring Channelized Data Threshold Value UAS Range 1 to 255 Default 1 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Unavailable Seconds The DS1 interface is unavailable from the onset of 10 contiguous SESs or any condition leading to a failure e once unavailable and if no failure is present the DS1 interface becomes available at the onset of 10 contiguous seconds with no SESs e once unavailable a
62. damage during shipping Disassemble these components prior to installation The four Phillips head 10 32 x 38 long screws ship in holes securing the Mounting Shelf to the Rear Mounting brackets Remove them to separate the shelf and brackets The eight Phillips head 12 24 x 50 long screws ship in a small plastic bag 2 5 The PathBuilder S24x 26x and 27x Switch Rackmount Kit Rackmount Kit Parts Placement Considerations 2 6 Figure 2 1 shows the components of the rackmount kit 10 32 x 38 Screws with External of Pg Washers 4 Mounting Shelf Adjustable Rear Mounting Bracket 2 Figure 2 1 The PathBuilder S24x 26x and 27x Switch Rackmount Kit Consider the following issues when installing your PathBuilder S24x 26x and 27x switch in an equipment rack Space A PathBuilder S24x 26x and 27x switch and EJA rackmount assembly occupies 7 0 inches or 4 U NEMA rack space increments Power Allow enough room behind the EIA equipment rack to connect the power cord and devices Refer to this manual for maximum power load when connecting to a 15 amp internal convenience power outlet strip Thermal For proper ventilation do not cover air vents at the rear of the unit Where a front door is present on a rackmount cabinet installation of the PathBuilder S24x 26x and 27x switch must allow a 2 inch clearance between the door and the PathBuilder S24x 26x and 27x switch air inlet to provide su
63. dard networking protocols appropriate for your application X 25 Voice Relay etc All networking services are available to the circuits between the clustered nodes When configuring a full mesh application remember that each node must be configured individually Ports 1 2 and 3 on each PathBuilder S24x 26x and 27x switch will appear normally on the Port Record The parameter Clock Speed and the appropriate clock mode Int Ext etc should be set depending on the DIM position and speed Clock speeds up to 2 048 Mbps are supported When cabling PathBuilder S200 series switch in a mesh application use DB25 male to DB25 male straight through cables To use your PathBuilder S24x 26x and 27x switch in a full mesh cluster note that Ports 1 2 and 3 on all four nodes are for the mesh connections e Port 3 is always a DTE port V 36 electrical e Ports 1 and 2 can be either DCE or DTE ports This is determined by the way you set the V 36 DIMs on the motherboard Refer to the Installing DIMs section earlier in this chapter PathBuilder S24x 26x and 27x Switch Hardware Installation 3 27 Full Mesh Cluster Cabling Mesh Diagram Figure 3 8 shows how a full mesh application is cabled PB S200 Rear View Port 1 Ty PB S200 Rear View Port2 T Port 3 T Port 1 C Port 2
64. der S24x 26x and 27x switch 1 9 Hardware Components Component Description continued DSPM with E amp M Interface The PathBuilder S26x switch Analog DSPM E amp M card allows the PathBuilder S26x switch to support up to two 2 voice fax channels per card Each E amp M card occupies one ISA slot in the PathBuilder S26x switch The PathBuilder S26x switch E amp M card supports both two and four wire interfaces Ethernet Port 4 Consider these limitations when using the Ethernet Port 4 Limitations e The port does not support Bridging refer to the Bridging Option Part No T0008 16 When configuring this port you are not prompted for the bridge link number e The port does not support SLAC e When configuring the Ethernet Port 4 you are not prompted for the connector type Ethernet Port 4 only supports AUI About the PathBuilder S24x 26x and 27x switch Hardware Components Enclosure Introduction Front Panel Status LEDs Numeric LED Display Reset Switch Power Supply This section provides detailed information about the parts of the PathBuilder S24x 26x and 27x switch enclosure The PathBuilder S24x 26x and 27x switch front panel see Figure 1 6 has Three status LEDs e A 2 character numeric LED display e A RESET switch The three status LEDs are e Power green When on indicates that power is on and all DC voltages are within specifications
65. e Green ON Card Active SYSFAIL OFF Normal operation Yellow ON Card failure About the PathBuilder S24x 26x and 27x switch 1 19 Hardware Components E1 Dual Port Digital PBX Interface Card Introduction Description Function Slot Restriction 1 20 The El dual port digital PBX interface card supports digital voice communications providing integrated network access see Figure 1 12 The E1 interface card is installed primarily in Europe and South America A 2 megabyte El card is required for passing data traffic and voice traffic Each El dual port digital PBX interface card uses an Industry Standard Architecture ISA bus interface and a Multi Vendor Integration Protocol MVIP bus interface The MVIP bus interface provides a multiplexed digital access within the PathBuilder S24x 26x and 27x switch chassis The E1 dual port digital PBX interface card has two E1 ports CAS signaling only handles E1 lines with or without CRC4 and supports 120 and 75Q with the addition of an optional cable The interface type is 8 pin modular E1 dual port digital PBX interface cards provide the digital interfaces for connections to a PBX The dual port digital PBX interface cards bring PCM voice and channel signaling into the node The PCM voice data and voice signaling is routed to a DSPM SM card over the MVIP bus for compression and transmission to the motherboard The E1 dual port digital PBX interf
66. e T1 Dual Port Interface card 3 Remove the cover from the PathBuilder S24x 26x and 27x switch as shown in Figure 4 1 on page 4 4 4 Use a screw driver to loosen the bracket screw and remove the T1 Dual Interface card Place the card on an antistatic mat Locate the pin connectors on the T1 Dual Port Card See Figure 3 6 The upper connectors support Port 49 and the lower connectors support Port 50 7 Using a pair of long nose pliers or a small screw driver remove the small jumpers from the connectors 8 Carefully insert the T1 CSU Daughter Card s into the pin connectors Ensure that the card is seated securely 9 Insert the T1 Dual Port card into expansion slot 8 aligning the card with the card guides and making proper connection on the motherboard Ensure that the card is seated securely 10 Secure the card to the chassis using the bracket screw 11 Replace the PathBuilder S24x 26x and 27x switch cover 12 Reconnect the cables to the T1 Dual Port card 13 Plug in the AC power cord PathBuilder S24x 26x and 27x Switch Hardware Installation Installing a T1 or E1 Dual Port Digital PBX Interface Card Carefully install Daughtercard Pins into T1 Dual Port Interface Connector Figure 3 6 Installing T1 CSU Daughter Cards PathBuilder S24x 26x and 27x Switch Hardware Installation 3 21 Cabling the PathBuilder S24x 26x and 27x Switch Cabling the PathBuilder S24x 26x and 27x Switch Introduction CTP Conne
67. e United States Notice continued Proprietary Material Information and software in this document are proprietary to 3Com or its Suppliers and without the express prior permission of an officer of 3Com may not be copied reproduced disclosed to others published or used in whole or in part for any purpose other than that for which it is being made available Use of software described in this document is subject to the terms and conditions of the 3Com Software License Agreement This document is for information purposes only and is subject to change without notice Part No T0004 Rev F First Printing October 1998 Manual is current for Release 5 2M Contents Chapter 1 About the PathBuilder S24x 26x and 27x switch Applications siciscusccsseuvscdsuuesacenatsosssonnesas setsceaourvsasuevvecaueeetaiareosnsunneeasvenbeassuures 1 3 Features and Protocole ana ae 1 7 Hardware Component ae 1 8 En ie ee der ee 1 11 Motherboard cecinere naera E A E ARTERS 1 12 Back Panel ee 1 16 TI Dual Port Digital PBX Interface Carl 1 17 EI Dual Port Digital PBX Interface Card ans a 1 20 DSPM SM Card een 1 23 DSPM Card with Analog E amp M Interface ceneennenennsesnnnnnn 1 26 Setting Jumpers for DSPM Card with Analog E amp M Interface 1 29 DSPM Card with FXS Analog Interface nun 1 32 DSPM Host Card with FXO Analog Interface 2220 22 1 35 48V Ringer Power Supply Card and Enclosure
68. e or two T1 CSU Daughter Cards can be installed onto the T1 Dual Port card The top card supports port 49 and the bottom supports port 50 For instructions for installing the T1 CSU card refer to Installing the T CSU Daughter Card section in Chapter 3 These cables ship with the T1 dual port digital PBX interface card and are required to cable the T1 dual port digital PBX interface card to the DSPM SM cards in the node Cable Description Function One 4 position 40 pin Connects up to 3 DSPM SM cards to interconnect MVIP ribbon cable digital voice traffic between individual cards in the same PathBuilder S24x 26x and 27x switch node One 8 position 40 pin Connects 4 or more DSPM SM cards to interconnect MVIP ribbon cable digital voice traffic between individual cards in the same PathBuilder S24x 26x and 27x switch node Two 8 pin modular to 3 ft adapter converter cables used to convert the DB15 cables 8 pin modular connector on the front of the T1 E1 card to a DB15 connector Product Code 17269 About the PathBuilder S24x 26x and 27x switch Hardware Components LED Status The T1 dual port digital PBX interface card contains four LEDs that can be viewed Indicators through the rear bracket LED Color LED is Indicating Port 49 OFF Normal operation Yellow ON Carrier failure on Port 49span Port 50 OFF Normal operation Yellow ON Carrier failure on Port 50 span RUN OFF Card failur
69. e verbunden ist wenn Sie die Schnittstellenkarte ber hren Transportieren Sie die Karte immer in einer antistatischen H lle Warning Do not attempt to install the interface card while the PathBuilder S24x 26x and 27x switch is running Avertissement Ne tentez pas d installer une carte d interface lorsque le PathBuilder S24x 26x and 27x switch fonctionne Warnung Versuchen Sie nicht die Schnittstellenkarte w hrend des Betriebs des PathBuilder S24x 26x and 27x switch zu installieren PathBuilder S24x 26x and 27x Switch Hardware Installation 3 17 Installing a T1 or E1 Dual Port Digital PBX Interface Card Step Action 1 Place the interface card on an antistatic mat 2 Set the I O base address for the card using the DIP switches at SW1 3 Power down the PathBuilder S200 series switch by unplugging the AC power plug 4 Remove the cover from the PathBuilder S24x 26x and 27x switch as shown in Figure 4 1 on page 4 4 5 Use expansion slot 8 If necessary unfasten the bracket screw and remove the bracket that covers the chassis opening for slot 8 6 Holding the interface card by the rear bracket and board edges gently insert the card into expansion slot 8 aligning the card with the card guides and making proper connection on the motherboard Ensure that the card is seated securely in the expansion slot Secure the card to the chassis using the bracket screw Connect the 40
70. ear Mounting brackets using the four 10 32 x 38 long screws two to each side To do this insert the screws from inside the equipment rack through the Mounting Shelf slot and through the appropriate adjustment hole in the Rear Mounting bracket See Figure 2 3 C Facing the front panel carefully tip the PathBuilder S24x 26x and 27x switch horizontally to your right Insert the PathBuilder S24x 26x and 27x switch into the equipment rack leaving enough room at the rear to remove the three case fastening screws along the new bottom of the unit See Figure 2 4 Preparation and Unpacking Installing the PathBuilder S24x 26x and 27x Switch in an Equipment Rack Step Action Description 6 Remove the long 6 screws Then slide the PathBuilder S24x 26x and 27x switch flush against the rear flange of the Mounting Shelf and reinsert the screws through the flange and into the unit s case The PathBuilder S24x 26x and 27x switch is now securely attached to the equipment rack and ready for connection to devices and power E Note The unit is now accessible mainly from the front and will require complete removal from the rack to perform maintenance routines Preparation and Unpacking 2 9 Installing the PathBuilder S24x 26x and 27x Switch in an Equipment Rack Removing the Figure 2 2 shows how to remove the pedestal base from the PathBuilder S
71. en und qualifizierten Technikern durchgef hrt werden Da PathBuilder S200 series switch Zusatzkarten und DIMs von 3Com keinen statischen Entladungen ausgesetzt werden sollten da Komponenten besch digt werden k nnen werden sie von dem qualifizierten technischen Personal mit den entsprechenden Ma nahmen zur Erdung und zum Schutz vor statischen Ladungen gehandhabt Caution Some components used in the PathBuilder S24x 26x and 27x switch are sensitive to static electric discharges static electric discharges can cause damage to internal components Use proper handling and grounding precautions whenever handling cards and components Mise en Garde Certains composants du PathBuilder S24x 26x and 27x switch sont sensibles aux d charges lectrostatiques qui peuvent les endommager Prenez les dispositions et pr cautions de mise la terre n cessaires lors de la manipulation de cartes et de composants 4 1 4 2 A Vorsicht Einige im PathBuilder S24x 26x and 27x switch verwendeten Komponenten sollten keinen elektrostatischen Entladungen ausgesetzt werden durch die interne Bauteile besch digt werden k nnen Wenden Sie die entsprechenden Ma nahmen zur Erdung und zum Schutz vor statischen Ladungen bei der Handhabung von Karten und Komponenten an Maintenance Removing Replacing Top Cover Removing Replacing Top Cover Introduction You must remove the top cover to access the motherboard and all I O cards the power suppl
72. enabled for that node Itis on the CMEM SIMM card for easy removal and replacement in case of a motherboard failure The CMEM is installed in the SIMM slot see Figure 1 7 for slot location Figure 1 9 shows the CMEM Warning Only qualified service personnel should perform the procedure described in this section If the battery is installed incorrectly it could explode after the PathBuilder S200 series switch product is powered up damaging the unit 4 Avertissement Seules des personnes qualifi es peuvent mettre en pratique les proc dures d crites dans cette section Si la batterie n est pas correctement install e elle risque d exploser apr s la mise en marche du produit PathBuilder S200 series switch et d endommager l unit 4 Warnung Die in diesem Abschnitt aufgef hrten Vorg nge sollten ausschlie lich von qualifiziertem Servicepersonal durchgef hrt werden Wenn die Batterie unsachgem installiert wird kann sie nach dem Einschalten des PathBuilder S200 series switch Produkts explodieren About the PathBuilder S24x 26x and 27x switch 1 13 Hardware Components Expansion Port O Slots Slot Number and Port Numbers Description of Serial Network Ports Lithium B ttery Figure 1 9 CMEM SIMM The PathBuilder S24x 26x and 27x switch motherboard has eight full size expansion card slots see Figure 1 6 Expansion I O cards have I O connectors that extend through the rear panel Port nu
73. ep Action Result Description 1 Verify that the 115 230 VAC Switch on Be sure that the AC power the rear panel is set for the specific cord meets requirements for country s requirements the country of use 2 If you are using an AC power supply The PathBuilder S24x 26x connect the power cord to the back of and 27x switch unit automati the PathBuilder S24x 26x and 27x cally powers on and runs self switch enclosure and then to the diagnostics appropriate power source If you are using a 48VDC input power supply verify correct polarity with a Volt meter PathBuilder S24x 26x and 27x Switch Hardware Installation Installing the Transceiver Installing the Transceiver Introduction The transceiver mounts to the DB 15 AUI connector of the Ethernet LAN card or to the DB 15 AUI connector on the back panel The Thin Net BNC connector provides subsequent interface to the coaxial network The SQE can be turned ON and OFF by setting a switch on the side of the housing E Note The transceiver is shipped with the SQE set to the OFF position Transceiver Figure 3 7 shows a transceiver Illustration Thin NET BNC Connector 15 Pin D Type Connector SQE Switch Figure 3 7 Transceiver PathBuilder S24x 26x and 27x Switch Hardware Installation 3 23 Power Up Diagnostics Verification Power Up Diagnostics Verification Introduction Power Up Sequence Node Restarts Node Coldstart Node
74. erminal Port See the Configuring Channelized Data section on page 5 3 for details on how to configure a PathBuilder S200 series switch for channelized data operation The Channelized Data option uses the standard X 25 and Frame Relay statistics available for the PathBuilder S200 series switch products family Refer to the X 25 Configuration Basics Guide for information on statistics For details on alarms and reports refer to the Alarms and Reports manual No Software Authorization Key is required to enable Channelized Data on a PathBuilder S24x 26x and 27x switch 5 1 Application Example Application Example Overview Figure 5 1 shows a typical Channelized Data application where multiple remote LAN sites feed into a cluster of PathBuilder S24x 26x and 27x switch Regional Concentrators The PathBuilder S24x 26x and 27x switch cluster concentrates the traffic and passes it on to multiple hosts LLC2 IP PathBuilder S24x 26x and 27x switch Cluster SDLC SDLC IP Third Party Router Figure 5 1 Application Example In a Frame Relay application each timeslot shown in Figure 5 1 would represent a port You would also need to configure a station for each port if you wanted to run the maximum DSO for a timeslot 5 2 Channelized Data Configuring Channelized Data Configuring Channelized Data Overview Before You Begin Frame Relay Applications What You Have to Configure Chan
75. ermination Jumpers Not Used 48V Power Supply Connector Port IRM Port 1 LC Remote Busy Local Busy Port 2 RM Port 2 LC Remote Busy Local Busy Pin k Pin 1 Figure 1 20 DSPM Card with Analog FXS Interface About the PathBuilder S24x 26x and 27x switch 1 33 Hardware Components LEDs The card contains four LEDs that can be viewed through the rear bracket LED Color LED is Indicating Port 1 Local Green On local physical connection is active Busy Off offhook local physical connection is idle onhook Port 1 Remote Green On remote end is active offhook Busy Off remote end is idle onhook Port 2Local Green On local physical connection is active Busy Off offhook local physical connection is idle onhook Port2 Remote Green On remote end is active offhook Busy Off remote end is idle onhook Jumper Locations The DSPM FXS interface card has no jumpers that must be set For Australian Only 3Com approved engineering staff can install and program this card Users The QDU rating for the voice compression algorithm used by this equipment is 8k 4 5 QDU 16k 2 63 QDU The total number of QDU in any application must be managed according to the guidelines in the Private Network Design Guide published by Standards Australia Failure to adhere to these guidelines is a breach of Australian Communications Authority regulations
76. ervice equipment Excessive RENs on the line may result in the devices not ringing in response to an incoming call Contact the telephone company to determine the maximum REN sum for the calling area in general it should not exceed five The telephone company may change its equipment operations or procedures If these changes affect your equipment or service the telephone company will provide written notice so you may make the necessary changes with uninterrupted service FCC regulations and telephone company procedures prohibit connection of customer provided equipment to telephone company provided coin service central office implemented systems Connection to party lines is subject to state tariffs Contact your telephone company if you have any questions about your telephone line About the PathBuilder S24x 26x and 27x switch 1 43 Telecommunications Regulations In Canada the following equipment attachment limitations and information must be provided in the user instructions The Canadian Department of Communications label identifies certified equipment This certification means that the equipment meets certain telecommunications network protective operational and safety requirements The Department does not guarantee the equipment will operate to the user s satisfaction Before installing this equipment users should ensure that it is permissible to be connected to the facilities of the local telecommunications company
77. fficient air flow Stability When installing the PathBuilder S24x 26x and 27x switch in a non 3Com cabinet or with other vendors equipment the PathBuilder S24x 26x and 27x switch should be positioned so that the resulting system rack remains stable during installation on a 10 degree ramp or when 56 pounds of force is applied to the top of the cabinet Preparation and Unpacking Preparation and Unpacking The PathBuilder S24x 26x and 27x Switch Rackmount Kit 2 7 Installing the PathBuilder S24x 26x and 27x Switch in an Equipment Rack Installing the PathBuilder S24x 26x and 27x Switch in an Equipment Rack How to 2 8 Follow these steps to install the PathBuilder S24x 26x and 27x switch in an equipment rack Step Action Description 1 Remove the plastic pedestal base that is attached to the PathBuilder S24x 26x and 27x switch The base is attached by four Phillips head screws coming up from the bottom as shown in Figure 2 2 Insert the Mounting Shelf to the desired location in the equipment rack and secure it to the front using four 12 24 x 50 long screws See Figure 2 3 A Fasten the adjustable Rear Mounting brackets at each side of the rear of the equipment rack Use the remaining four 12 24 x 50 long screws See Figure 2 3 B When installed correctly the Rear Mounting brackets are on the outside of the mounting shelf Bolt the Mounting Shelf to the R
78. h Rear View Mounting Shelf Remove the three case fastening screws off the left rear new bottom of SO PathBuilder S24x 26x and 27x switch Slide the PathBuilder S24x 26x and 27x Note Attached Rear Mounting brackets switch flush against rear mounting rail and are not shown in this figure reinsert long screws through rail and into machine s case Figure 2 4 Installing the PathBuilder S24x 26x and 27x Switch in Rack mount Assembly 2 12 Preparation and Unpacking Chapter 3 PathBuilder S24x 26x and 27x Switch Hardware Installation Overview Introduction This chapter contains procedures for installing PathBuilder S24x 26x and 27x switch hardware components The following warnings and cautions apply to all procedures described in this chapter Caution Ports that are capable of connecting to other apparatus are defined as Safe Extra Load Voltage SELV To ensure conformity with EN60950 ensure that these ports are only connected to ports of the same type of apparatus Mise en Garde Les ports qui sont susceptibles d tre connect s des quipements sont d sign s comme TBTS Pour garantir la conformit la norme EN 60950 n interconnecte ces ports qu avec des ports du m me type sur des autres materiels Vorsicht Anschlusse die mit anderen Ger ten verbindet werden k nnen sind als SELV beschrieben Um Konformit t mit EN 60950 zu versichern sichern Sie es daB diese Anschlusse n
79. hBuilder S24x 26x and 27x switch node to support interface types II II and V Interface type I does not require a 48V ringer power supply The DSPM E amp M interface card requires a 48V ringer power supply cable to support interface types II III and V The 48V ringer power supply cable connects up to six DSPM cards to the power supply The cable ships with the 48V ringer power supply For details on how to cable the DSPM card to the 48V ringer power supply refer to the 48V Ringer Power Supply Card and Enclosure section on page 1 53 When you receive a DSPM E amp M card do the following Step Action 1 Remove it from the packing material 2 Inventory the contents of the shipping container E Note No cables are shipped with the DSPM E amp M card The appropriate 6 position power cable and status cable ship with the 48V ringer power supply card that must be used in conjunction with the DSPM E amp M card Set jumpers as required Power off the node Install the card into the PathBuilder S24x 26x and 27x switch node Cable the card to the 48V ringer power supply as required AJ amp w About the PathBuilder S24x 26x and 27x switch Hardware Components DSPM E amp M Card Figure 1 15 shows an example of the DSPM card with an analog E amp M interface Illustration MVIP Clock Termination Jumpers Not Used 48V Power Supply Connector Por
80. he remotes can limit the degree of remote isolation if part of the PathBuilder S24x 26x and 27x switch cluster fails About the PathBuilder S24x 26x and 27x switch 1 5 Applications 16 Access Ports 16 Access Ports 16 Access Ports 16 Access Ports PB S200 IPB S200 PB S200 PB S200 High Speed Network Links to other Sites or Backbone LAN Connectors Figure 1 5 PathBuilder S24x 26x and 27x Switch Cluster Example 1 6 About the PathBuilder S24x 26x and 27x switch Features and Protocols Features and Protocols Description For a complete listing of the features and protocols supported by your PathBuilder S24x 26x and 27x switch refer to the Software Release Notice that came with the operating software About the PathBuilder S24x 26x and 27x switch 1 7 Hardware Components Hardware Components PathBuilder S24x The PathBuilder S24x 26x and 27x switch comes in a rack mountable 26x and 27x configuration Switch Hard ware The switch contains a motherboard CPU board a built in power supply and an ISA Configuration bus for up to eight additional interface cards The PathBuilder S24x 26x and 27x switch has three available serial ports an Ethernet port and a CTP port FLASH memory and battery powered configuration backup It is easily expanded by adding option cards to the industry s
81. ional hardware az SNA Public or Private Network PB S200 N JI II Figure 1 2 Performance Branch Node Example About the PathBuilder S24x 26x and 27x switch 1 3 Applications Regional In Figure 1 3 the public network Frame Relay X 25 is performing the branch Concentrator concentration function with the PathBuilder S24x 26x and 27x switch routing the traffic to the appropriate end point In Figure 1 4 the PathBuilder S24x 26x and 27x switch acts as the regional concentrators receiving traffic from dozens and even thousands of remote sites and concentrating the traffic before forwarding it to the correct location In this case the PathBuilder S24x 26x and 27x switch is the regional site In both examples the PathBuilder S24x 26x and 27x switch could be either a single node or a group of nodes networked together as a cluster The PathBuilder S24x 26x and 27x switch s cluster feature is described below Central Site PB S200 Frame Relay or X 25 EH JOM tem O Single Node or Cluster E Branch XX PB S200 Figure 1 3 Regional Concentrator With Public Network Example 1 4 About the PathBuilder S24x 26x and 27x switch Cluster Application Applications Central Site High Speed Link Bra
82. ions antistatiques lors de la manipulation des cartes d interface afin de ne pas endommager les composants sensibles Portez une bande de mise la masse raccord e un quipement mis la terre lors de la manipulation d une carte d interface transportez la toujours dans un sac antistatique A Vorsicht Bitte beachten Sie bei der Handhabung der Schnittstellenkarten die Vorsichtsma nahmen zur Antistatik um anf llige Bauteile vor Besch digungen zu sch tzen Tragen Sie einen Schutzerdungsleiter der mit einem geerdeten Ger tegeh use verbunden ist wenn Sie die Schnittstellenkarte ber hren Transportieren Sie die Karte immer in einer antistatischen H lle Warning Do not attempt to install the interface card while the PathBuilder S24x 26x and 27x switch is running Avertissement Ne tentez pas d installer une carte d interface lorsque le PathBuilder S24x 26x and 27x switch fonctionne Warnung Versuchen Sie nicht die Schnittstellenkarte w hrend des Betriebs des PathBuilder S24x 26x and 27x switch zu installieren PathBuilder S24x 26x and 27x Switch Hardware Installation 3 19 Installing a T1 or E1 Dual Port Digital PBX Interface Card Installation Procedure 3 20 Follow these steps to install the T1 CSU Daughter card Step Action 1 Power down the PathBuilder S200 series switch by unplugging the AC power plug Remove the cables from the rear of th
83. istics 3 11 port statistics 3 11 U Unpacking 2 4 URL D 1 V Virtual Port Mapping Table guidelines 5 20 parameters 5 21 Virtual Ports booting 5 18 enabling 5 18 Virtual ports booting 5 18 configuring 5 18 disabling 5 18 Ww Warm Restart 3 24 World Wide Web WWW D 1 Index 5 Index 6
84. l Port Digital PBX Interface Card Installing a T1 or E1 Dual Port Digital PBX Interface Card Introduction Slot Restriction Installation Procedure This section provides installation instructions for the T1 or El dual port digital PBX interface card for the PathBuilder S24x 26x and 27x switch It also provides a section on installing a T1 CSU Daughter card onto the T1 Dual Port Card One T1 or El dual port digital PBX interface card may only be installed in expansion slot 8 in the PathBuilder S24x 26x and 27x switch Follow these steps to install a T1 or El dual port digital PBX interface card A Caution Observe antistatic precautions whenever handling interface cards to avoid damaging sensitive components Wear a ground strap connected to a grounded equipment frame whenever handling the interface card always transport the card in an antistatic bag A Mise en Garde Prenez des pr cautions antistatiques lors de la manipulation des cartes d interface afin de ne pas endommager les composants sensibles Portez une bande de mise la masse raccord e un quipement mis la terre lors de la manipulation d une carte d interface transportez la toujours dans un sac antistatique Bitte beachten Sie bei der Handhabung der Schnittstellenkarten die Vorsichtsma nahmen zur Antistatik um anf llige Bauteile vor Besch digungen zu sch tzen Tragen Sie einen Schutzerdungsleiter der mit einem geerdeten Ger tegeh us
85. llateur kontaktieren E Note The Load Number LN assigned to each terminal device denotes the total load percentage to be connected to a telephone loop used by the device to prevent overloading The loop termination can consist of any combination of devices as long as their total LNs do not exceed 100 1 44 About the PathBuilder S24x 26x and 27x switch FCC and Telephone Company Procedures and Requirements FCC and Telephone Company Procedures and Requirements Introduction Ordering Connections for the T1 CSU If Problems Arise The following tables provide the information that is needed for ordering telephone company network connections for the 3Com PathBuilder S24x 26x and 27x switch V 22 bis modem How to Order Connections in the U S A Service USOC Jack REN Facility Interface Description Connector Code PSTN permissive RJLIC 0 8B 02LS2 How to Order Connections in Canada Service Connection LN Network Description Arrangement Interface PSTN permissive CAIIA 15 LS To order the proper connections for a PathBuilder S24x 26x and 27x switch with a T1 Dual Port Interface card with T1 CSU daughtercards provide the telephone company with the following information e Interface type e Required USOC jack connector number e Service code e Facility interface codes Interface Type USOC Jack Service Facility Interface Connector Code Code 56 kbps digital i
86. mber of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Path Coding Violations which are frame synchronization bit errors in the D4 and El noCRC formats or CRC errors in the ESF and E1 CRC formats Channelized Data Channelized Data Configuring Channelized Data Threshold Value CSS Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Controlled Slip Seconds which are one second intervals containing one or more controlled slips Threshold Value ES Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Error Seconds which have e one or more path code violations e one or more out of frame defects e one or more controlled slip events e a detected alarm indication signal defect For D4 and E1 CRC links the presence of bipolar violations also triggers an errored second Threshold Value BES Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Bursty Errored Second
87. mbers for the ports on the I O cards have a fixed relationship to the chassis expansion slot number Six port numbers are reserved for each slot If a slot contains an I O card that does not support the full port count reserved for that slot or the slot is empty the extra port numbers remain unused This table shows the port numbers associated with each card type Slot Number Port Number Associated Card Motherboard I O 1 6 Motherboard 7 12 Voice cards E amp M FXS 2 13 18 Server Module T1 E1 The T1 E1 is restricted to 3 19 24 Slot 8 4 25 30 5 31 36 6 37 42 7 43 48 8 49 54 Ports 1 through 3 are connected to the motherboard with ribbon cables Ports 1 and 2 are DIM ports and are functional only if a DIM is present Port 3 is a dedicated V 36 DTE port Ports 1 2 3 and 6 on the rear panel of the chassis are DB 25 female connectors Port 4 the Ethernet AUI port uses a DB 15 connector Ports 1 and 2 may require adapters depending on the DIM used An adapter cable is available for Port 3 About the PathBuilder S24x 26x and 27x switch How Ports Are Used DIMs without a Cable Adapter DIMs with a Cable Adapter Hardware Components The following table describes how the ports are used Port Number Use 1 2 and 3 Recommended for network port connection or cluster connectivity Ports 1 and 2 have variable interfaces depending on the DIMs Ethernet AU
88. ming to AT amp T 62310 or ANSI T1E1 4 91 006 and running at 56 kbps 10Base2 Lets you accommodate different network configurations Transceiver for AUI through the user selectable Signal Quality Error SQE ports optional function T1 Dual Port The T1 dual port digital PBX interface card supports digital Digital PBX voice communications providing integrated network access Interface Card The T1 digital interfaces are used for both voice and data PathBuilder S24x traffic 26x and 27x E1 Dual Port The E1 dual port digital PBX interface card supports digital Digital PBX voice communications providing integrated network access Interface Card see Figure 1 12 The El interface card is used to support both voice and data traffic DSPM SM The DSPM SM card used at nodes with digital PBX interfaces compresses four digital voice channels It has no external I O capabilities DSPM with FXS Analog Interface The analog DSPM FXS card allows the PathBuilder S24x switch to support up to two voice fax channels per card Each DSPM FXS card occupies one ISA slot in the PathBuilder S24x switch DSPM with FXO Analog Interface The analog FXO daughtercard when mounted on the DSPM HC allows the PathBuilder 244 and S254 switch to support one voice fax channel per card Each DSPM HX with FXO daughtercard combination occupies one ISA slot in the PathBuilder 244 and 254 switch About the PathBuil
89. ml m m po Port 1 Port 1 Port 2 2 J14 J24 E S S a Port 1 Port 2 ode z SEN 5 5 Sok COM 6000 COM 6000 N a Es sa 125 a AEE Port2 Oe oo s oO amp a 2W 4W 35 NO nd z Figure 1 18 Jumper Locations for DSPM E amp M Card Installing Jumpers Figure 1 19 illustrates how to install two or four wire jumpers into proper position Installing 3 Position Jumpers Installing 2 Position Jumpers Jumpers 4 Wire removed Jumpers 2 Wire installed Figure 1 19 Installing Jumpers About the PathBuilder S24x 26x and 27x switch 1 31 Hardware Components DSPM Card with FXS Analog Interface Introduction Description Function When You Receive the Card 48V Ringer Power Supply Required Cables Required The Analog DSPM FXS Foreign Exchange Station card supports two analog FXS interfaces The analog DSPM FXS card allows the PathBuilder S24x 26x and 27x switch to support up to two voice fax channels per card Each DSPM FXS card occupies one ISA slot in the PathBuilder S24x 26x and 27x switch The FXS interface provides a ringing voltage which alerts a station of an incoming call s 48V to power the phone fax and its 48V loop current detector to detect when the station goes off hook As a result an analog DSPM card with an FXS interface allows a telephone set fax machine or telephone key set to a
90. moving Replacing Top Cover ae uni 4 3 Removing Replacing Front Panel Cover 0 ccccsccessecceeeceeeeeeeaeeeeneeeeeeeeees 4 5 Removing Replacing Power Supply auusaenua 4 7 Removing Replacing PathBuilder S24x 26x and 27x Switch Cards 4 9 Replacing PathBuilder S24x 26x and 27x Switch Motherboard 4 12 Removing Replacing the Lithium Battery anne nen 4 14 Chapter 5 Channelized Data Application Example ui a ae 5 2 Conliguring Channelized Data san dan 5 3 Conbgucne TI and EI Physical Poren es knen 5 5 TI Port Parameters uni una 5 7 EI Pt Parameters u ua ee 5 13 Configuring Virtual Ports on the PathBuilder S24x 26x and 27x Switch 5 18 Configuring Virtual Port Mapping Table eeennenn 5 20 Appendix A Cables Bihener Cable Pam nee A 6 Appendix B PathBuilder S24x 26x and 27x Switch Specifications Appendix C PathBuilder S24x 26x and 27x Switch Error Codes Appendix D Technical Support Index Overview Introduction Audience How to Use This Manual Special Notices About This Manual This manual describes features hardware specifications and applications for the 3Com PathBuilder S24x 26x and 27x switch This manual is intended for operators of the 3Com PathBuilder S24x 26x and 27x switch The following table describes the contents of this manual This Chapter Describes Chapter 1 PathBuilder S24x 26x and 27x swit
91. n extremen Umwelteinfl ssen ausgesetzt sein Der akzeptable Temperaturbereich f r den Betrieb des Ger tes liegt zwischen 0 und 50 Grad Celcius auf Meeresh he Die relative Luftfeuchtigkeit sollte 90 nicht kondensierend nicht bersteigen Halten Sie einen Wandabstand von mindestens 30 5 cm auf der Ger ter ckseite zur ungehinderten Verlegung der Kabel und Entl ftung ein Preparation and Unpacking Before Installing Your PathBuilder S24x 26x and 27x Switch Caution To avoid overheating the unit s circuitry you should never place anything on top of the unit within one inch 2 5 cm of the ventilation slots on the front panel or within 12 inches 30 5 cm of the back of the unit Mise en Garde Afin d viter toute surchauffe des circuits de l unite ne placez aucun objet sur l unit a moins de 2 5 cm 1 pouce des conduits de ventilation du panneau avant et 4 moins de 30 5 cm 12 pouces de l arriere de l unite Vorsicht Zur Vermeidung einer berhitzung der Ger teschaltkreise sollten Sie keine Gegenst nde auf dem Ger t plazieren Zu den Entl ftungs ffnungen der Vorderabdeckung sollte ein Abstand von 2 5 cm und zur R ckseite des Ger tes von 30 5 cm eingehalten werden Preparation and Unpacking 2 3 Unpacking Unpacking Introduction Checking the Equipment fA The PathBuilder S24x 26x and 27x switch s printed circuit cards and other internal components are installed in the enclosure
92. nch 1 PB S200 PB S200 Il Single Node or Cluster Branch XX PB S200 nn om Host Figure 1 4 Regional Concentrator Example An important new feature available with the PathBuilder S24x 26x and 27x switch is its use in a cluster This allows as many as four PathBuilder S24x 26x and 27x switches to act a single unit for the purposes of connectivity Though configured and managed as individual nodes when the PathBuilder S24x 26x and 27x switches are clustered together devices attached to access ports on one node can have calls routed out the network port of one of the other nodes The three high speed ports on the PathBuilder S24x 26x and 27x switch motherboard provide networking channels between the nodes to pass traffic from network ports to access ports The PathBuilder S24x 26x and 27x switch cluster allows for high port count and throughput primarily in support of the regional concentrator applications The example in Figure 1 5 is a full mesh cluster which means that any access link can reach any host connection If a PathBuilder S24x 26x and 27x switch node within the cluster fails only those links and host connections directly connected to that node go down Placement of host equipment and use of redundant host equipment can minimize the impact of any individual node failure Furthermore Link Back Up features in t
93. nd if a failure is present the DS1 interface becomes available at the onset of 10 contiguous seconds with no SESs if the failure clearing time is less than or equal to 10 seconds e once unavailable and if a failure is present the DS1 interface becomes available at the onset of 10 contiguous seconds with no SESs if the failure clearing time is more than 10 seconds or the onset period leading to the successful clearing condition whichever occurs later 5 12 Channelized Data Configuring Channelized Data E1 Port Parameters Introduction Configuration Guidelines E1 Port Record Parameters Channelized Data This section describes the E1 port parameters in detail The E1 Port Record contains parameter values that you use to define operating characteristics for an E1 dual port digital interface card Configure an El port before configuring a Virtual Port Mapping Record which maps a logical timeslot channel a virtual port to that port The following parameters are available from the El port record Port Type Range Voice T1 El Default Null Description Specifies the type of port that you are configuring the parameter value you input for port type determines the parameters that appear next Boot Type Changes to this parameter require a Node boot to take effect Line Framing Type Range El_CAS El_CAS_CRC El _CAS_FEBE Default E1l_CAS Description
94. ndendienst gef hrden Caution Some components used in the PathBuilder S24x 26x and 27x switch are sensitive to static electric discharges static electric discharges can cause damage to internal components Use proper handling and grounding precautions whenever handling cards and components A Mise en Garde Certains composants du PathBuilder S24x 26x and 27x switch sont sensibles aux d charges lectrostatiques qui peuvent les endommager Prenez les dispositions et pr cautions de mise la terre n cessaires lors de la manipulation de cartes et de composants A Vorsicht Einige im PathBuilder S24x 26x and 27x switch verwendeten Komponenten sollten keinen elektrostatischen Entladungen ausgesetzt werden durch die interne Bauteile besch digt werden k nnen Wenden Sie die entsprechenden Ma nahmen zur Erdung und zum Schutz vor statischen Ladungen bei der Handhabung von Karten und Komponenten an PathBuilder S24x 26x and 27x Switch Hardware Installation Setting DIP Switches Setting DIP Switches Introduction This section explains how to set the DIP switches for the motherboard and the Serial Data Board SDB card Motherboard Figure 3 1 is an illustration of the PathBuilder S24x 26x and 27x switch Components motherboard showing the location of the switches DIMs Switch 2 Switch 1 Figure 3 1 Switch Blocks on Motherboard Motherboard These are the settings for motherboard
95. necessary e Event logs are not erased PathBuilder S24x 26x and 27x Switch Hardware Installation Power Up Diagnostics Verification Default Node A default node command is the same as a warmstart except it is only initiated by the Command operator The Current configuration bank in nonvolatile CMEM memory is erased and replaced by the system default configuration Setting Node to You can set a node to the default configuration by choosing the Default Node Default selection from the CTP Main menu Configuration PathBuilder S24x 26x and 27x Switch Hardware Installation 3 25 Installing Software Options Installing Software Options Introduction The PathBuilder S24x 26x and 27x switch contains all the software options available for the current release of the product In some cases the options have already been enabled However in other cases the option you want to use needs to be enabled Refer to the latest Software Release Notice for more information 3 26 PathBuilder S24x 26x and 27x Switch Hardware Installation Full Mesh Cluster Cabling Full Mesh Cluster Cabling Introduction Usage Configuring Cables Ports This section explains some of the important points to keep in mind when using your PathBuilder S24x 26x and 27x switches in a full mesh cluster configuration A full mesh application uses standard networking ports on the PathBuilder S24x 26x and 27x switch ports 1 2 and 3 and stan
96. nelized Data Before you can use the Channelized Data option on your PathBuilder S24x 26x and 27x switch you must configure the node for Channelized Data operation This section describes how to set up your PathBuilder S24x 26x and 27x switch for Channelized Data operation Refer to the following list to make sure you have everything you need before you begin to configure the Channelized Data option Install a T1 E1 card in slot 8 on your PathBuilder S24x 26x and 27x switch If you want to pass both voice and data traffic or just data traffic make sure a 2 Mbps TV EI card is installed properly in slot 8 on your PathBuilder S24x 26x and 27x switch If you want to pass voice traffic only you can use a 512 kbps TI E1 card Obtain the timeslot information from your network service provider The timeslot information is needed to configure virtual ports for all your remote connections Install the software release containing the Channelized Data option in your PathBuilder S24x 26x and 27x switch Make a CTP connection to the CTP port on your PathBuilder S24x 26x and 27x switch and begin to configure the Channelized Data option For Frame Relay applications you must configure a port and a station for every timeslot with a unique destination You need to configure the following records and tables in your PathBuilder S24x 26x and 27x switch to perform Channelized Data operation Configure this Record Table To do
97. ns This functionality provides host site Support resiliency port count extension and multiple LAN connectivity Examples of how the features of the PathBuilder S24x 26x and 27x switch function in specific applications can be found the Applications section on page 1 3 Figure 1 1 shows a PathBuilder S24x 26x and 27x switch Figure 1 1 PathBuilder S24x 26x and 27x Switch 1 2 About the PathBuilder S24x 26x and 27x switch Applications Introduction Performance Branch Nodes Applications This section briefly describes several application examples for the PathBuilder S24x 26x and 27x switch Because of its high performance capabilities the PathBuilder S24x 26x and 27x switch can be employed in a variety of branch node applications For example the PathBuilder S24x 26x and 27x switch can support a mix of voice and data types traditional legacy SDLC X 25 Bisync Async etc and LAN Because of its high throughput the PathBuilder S24x 26x and 27x switch can be used in situations where large file transfers fast response time and high numbers of users are the norm Figure 1 2 is an example of a typical branch node application Furthermore the PathBuilder S24x 26x and 27x switch is designed to meet the needs of an expanding network With its large RAM capacity and high speed processor the PathBuilder S24x 26x and 27x switch can easily adapt to a growing network with little or no addit
98. nterface RJ48 6 0P 04DU9 BN 56 kbps digital interface RJ48 6 0P 04DU9 1ZN 56 kbps digital interface RJ48 6 0P 04DU9 1KN 56 kbps digital interface RJ48 6 0P 04DU9 1SN If any of your telephone equipment is not operating correctly immediately remove it from the telephone line before it harms your network If the telephone company notes the problem they will notify you in advance if possible and may temporarily disconnect your service When you are notified you will be given the chance to correct the problem and be informed of your right to file a complaint with the FCC About the PathBuilder S24x 26x and 27x switch 1 45 FCC Information FCC Information Customer Provided FCC regulations and telephone company procedures prohibit connection of Telephone Equipment FCC and Telephone Company Procedures and Requirements 1 46 customer provided equipment to telephone company provided coin service central office implemented systems Connection to party lines is subject to state tariffs Occasionally the telephone company may make changes in their equipment operations or procedures If these changes affect your equipment or service the telephone company will provide written notice so you can make the necessary changes to maintain uninterrupted service Contact your telephone company if you have any questions about your telephone line In some circumstances the telephone company may ask you for info
99. o your Internet browser http www 3com com This service provides access to online support information such as technical documentation and software library as well as support options ranging from technical education to maintenance and professional services Download drivers patches and software across the Internet from the 3Com public FTP site This service is available 24 hours a day 7 days a week To connect to the 3Com FIP site enter the following information into your FTP client e Hostname ftp 3com com or 192 156 136 12 e Username anonymous e Password lt your Internet e mail address gt m Note A user name and password are not needed with Web browser software such as Netscape Navigator and Internet Explorer 3Com Bulletin Board Service 3ComFacts Automated Fax Service Support from Your Network Supplier D 2 The 3Com BBS contains patches software and drivers for 3Com products This service is available through analog modem or digital modem ISDN 24 hours a day 7 days a week Access by Analog Modem To reach the service by modem set your modem to 8 data bits no parity and 1 stop bit Call the telephone number nearest you Country Data Rate Telephone Number Australia Up to 14 400 bps 61 2 9955 2073 Brazil Up to 14 400 bps 55 11 5181 9666 France Up to 14 400 bps 33 1 6986 6954 Germany Up to 28 800 bps 4989 62732 188 Hong Kong Up to 14 400 bps 852 2537 5601 Italy Up to 14 400 bps 39 2 27
100. on BNote There is no indication when the motherboard switches do not match the type of DIM being used When replacing DIMs be sure that the motherboard switches are set correctly for the particular DIM being installed 3 6 PathBuilder S24x 26x and 27x Switch Hardware Installation Configuring the PathBuilder S24x 26x and 27x Switch for DSU Operation Configuring the PathBuilder S24x 26x and 27x Switch for DSU Operation Configuration Perform these steps from the CTP to configure the PathBuilder S24x 26x and 27x Procedure switch for DSU operation Step Action 1 Refer to the PathBuilder S200 Series Basic Protocols However you do not need to complete these configuration parameters e Clock Speed e Connection Type e Port Control 2 Configure the clock source parameter under port configuration as follows INT Use this parameter when providing clock to the network EXT Use this parameter when using the network provided clock usual mode for DSU operation PathBuilder S24x 26x and 27x Switch Hardware Installation 3 7 DSU Input and Output Signaling DSU Input and Output Signaling Introduction Input and output signaling information is useful as a debugging tool and replaces the EIA summary information associated with other DIM types Input Signals This table describes the input signals NIS Not In Service This signal is normally low L If no signal is received
101. on against interference when equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause interference to radio communications This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the radio interference regulations of the ISC Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to take adequate measures to correct the interference This product was verified under test conditions that include use of shielded DTE cable s Leased line cables with 1 5 turns through a ferrite cylinder were also used Use of different cables will invalidate verification and increase the risk of causing interference to radio and TV reception You can obtain the proper cables from 3Com If this equipment causes interference to radio or television reception which can be determined by turning the equipment off and on you are encouraged to try to correct the interference by one or more of the following measures e Reorienting the receiving antenna e Relocating the equipment with respect to the receiver e Moving the equipment away from the receiver e Plugging the equipment into a different outlet so that the equipment and receiver are on different circuits If necessary you should cons
102. over refer to Figure 4 1 2 3 Remove the support bar from the chassis 4 Remove all cables connected to expansion cards and remove all expansion cards 5 Disconnect the ribbon cable connecting the LED display card to the motherboard at the motherboard end 6 Disconnect all cables connecting ports 1 2 3 4 and 6 to the motherboard E Note All cable connectors are keyed to ensure proper connection 7 Disconnect the two power supply cables On the right side of the unit toward the backplane e Remove the three retaining screws Figure 4 6 e Swing the motherboard out and away from the chassis e Lift the assembly up and away from its hinges 4 12 Maintenance Replacing PathBuilder S24x 26x and 27x Switch Motherboard Example Figure 4 6 shows an example of removing the motherboard 4 we O Ry FG I 0 N N Swing motherboard out and lift from enclosure Ss pe Remove screws Figure 4 6 Removing the Motherboard Install the To replace the motherboard reverse the steps just detailed in Removing the Motherboard Motherboard Maintenance 4 13 Removing Replacing the Lithium Battery Removing Replacing the Lithium Battery Introduction Replacing the Battery 4 14 The 3 volt lithium battery on the CMEM card maintains the node s configuration memory in the event of a power failure 4 Warning Only qualified service
103. r grounding and to ensure signal integrity A Caution Be sure that the telephone company plug is disconnected before you disconnect the EIM from the PathBuilder S24x 26x and 27x switch Also do not connect the telephone company plug to the EIM until you have connected the EIM to the PathBuilder S24x 26x and 27x switch A Mise en Garde Assurez vous que la prise de t l phone est d branch e avant de d connecter le module d interface externe EIM du PathBuilder S24x 26x and 27x switch Ne la rebranchez pas au EIM avant d avoir reconnect le module au PathBuilder S24x 26x and 27x switch Vorsicht Das Telefonkabel mu ausgesteckt sein bevor Sie die Verbindung zwischen dem EIM und dem PathBuilder S24x 26x and 27x switch trennen Schlie en Sie das Telefonkabel erst dann wieder in das EIM an wenn Sie die Verbindung zwischen EIM und PathBuilder S24x 26x and 27x switch wiederhergestellt haben PathBuilder S24x 26x and 27x Switch Hardware Installation 3 5 Installing the DSU DIM Switch Blocks 1 The PathBuilder S24x 26x and 27x switch Integral DSU option requires that you and 2 set the same switches in the switch blocks as you do for the V 35 V 36 and X 21 interfaces These are the switch settings for the motherboard switches 1 and 2 Switch Settings Set Switch To For 1 5 OFF V 11 V 35 V 36 DIMs and the 6 8 ON PathBuilder S24x 26x and 27x switch Integral DSU opti
104. rely Error Framing Seconds which have e one or more out of frame defects e a detected alarm indication signal defect 5 16 Channelized Data Channelized Data Configuring Channelized Data Threshold Value UAS Range 1 to 255 Default 1 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Unavailable Seconds The DS1 interface is unavailable from the onset of 10 contiguous SESs or any condition leading to a failure e once unavailable and if no failure is present the DS1 interface becomes available at the onset of 10 contiguous seconds with no SESs e once unavailable and if a failure is present the DS1 interface becomes available at the onset of 10 contiguous seconds with no SESs if the failure clearing time is less than or equal to 10 seconds e once unavailable and if a failure is present the DS1 interface becomes available at the onset of 10 contiguous seconds with no SESs if the failure clearing time is more than 10 seconds or the onset period leading to the successful clearing condition whichever occurs later 5 17 Configuring Channelized Data Configuring Virtual Ports on the PathBuilder S24x 26x and 27x Switch Introduction You have to configure a virtual port for each connection between the remote nodes and the PathBuilder S24x 26x and 27x switch How
105. rmation about your equipment that is connected to the telephone line Within the United States at the request of the telephone company you should provide your equipment s FCC registration number This number is AT9USA 21085 DD N and is located on the unit s label Before you connect the PathBuilder S24x 26x and 27x switch DSU option to the network you must provide the telephone company with the information shown below Type of Interface USOC Jack REN Service Facility Interface Connector Code Code 56 kbps digital interface RJ48S 6 0F 04DU5 56 About the PathBuilder S24x 26x and 27x switch Regulations Concerning Electromagnetic Radiation Correcting Interference Additional Information FCC Information The Federal Communications Commission FCC of the United States of America and the Industry and Science Canada ISC have published regulations that govern the allowable limits of emanation of radio frequency energy of computing devices and associated peripherals These regulations are concerned with interference to radio communications such as radio and television The regulations require equipment for use in the United States or Canada to be labeled and to be accompanied by the following notice This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protecti
106. s Startup Diagnostics DSU Internal Loopback DSU Internal and External Loopback Start Delay Measurement 10 Stop Delay Measurement 11 Display Delay Summary 12 IP Ping ososuPkwenhH vo Enter Selection Figure 3 3 Diagnostics Menu PathBuilder S24x 26x and 27x Switch Hardware Installation 3 9 DSU Input and Output Signaling Control Terminal These are the control terminal loopback options Loopback Options DSU Internal Loopback This loopback mode does not affect the external interface but it does loop the local transmit data back to the receive data within the EIM This test is useful for verifying that the EIM is connected and is working properly from a digital integrity perspective DSU Internal and This loopback mode performs the internal loopback External loopback mentioned above along with looping the external transmit to the external receive to allow manual testing of the remote interface 3 10 PathBuilder S24x 26x and 27x Switch Hardware Installation Troubleshooting DSU Installation Troubleshooting DSU Installation Introduction Some potential DSU installation problems are e Improper port connection of the EIM e Improper telephone company interface connection e The DSU DIM is not connected in DTE configuration e The motherboard switches are not in the proper positions e The DSU option Software is not operational e The DSU port clock source option is not correct
107. s which have e fewer than 320 and more than 1 path coding violation error events e no severely errored frame defects e no detected incoming alarm indication signal defects Controlled slips are not included BES is not incremented during an unavailable second 5 15 Configuring Channelized Data Threshold Value SES Range 1 to 255 Default 10 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Severely Error Seconds Severely Errored Seconds for ESF signals have e 320 or more path code violation error events e one or more out of frame defects e a detected alarm indication signal defect Severely Errored Seconds for E1 CRC signals have e 832 or more path code violation error events e one or more out of frame defects Severely Errored Seconds for El noCRC signals have e 2048 line coding violations or more Severely Errored Seconds for D4 signals have e a count of one second intervals with framing error events e an out of frame defect e 1544 line coding violations or more Controlled slips are not included BES is not incremented during an unavailable second Threshold Value SEFS Range 1 to 255 Default 1 Description Specifies the number of errors that must occur within a fixed 15 minute window before an alarm is declared This is based on the threshold value for Seve
108. s are keyed to aid in reassembly To replace the DC power supply reverse the steps detailed Removing Replacing Power Supply section on page 4 7 to Step 2 Instead of performing Step 1 verify that incoming power is disconnected with a volt meter then connect the appropriate terminal block locations Maintenance 4 7 Removing Replacing Power Supply Example Figure 4 3 shows an example of removing the power supply Remove the Two Holding i Screws on Inside and Slide Power Supply Out en WA z W A Support Bar Terminal Block Negative Wire X Power Supply Cables P1 P2 Remove the Four Holding Screws on the Rear Panel Figure 4 3 Removing the Power Supply 4 8 Maintenance Removing Replacing PathBuilder S24x 26x and 27x Switch Cards Removing Replacing PathBuilder S24x 26x and 27x Switch Cards Introduction This section describes how to remove the PathBuilder S24x 26x and 27x switch cards The I O cards are located in seven full size and one half size slots on the motherboard Removing an Follow these steps to remove an expansion card Expansion Card Step Action 1 Verify that the power is OFF by removing the power cord 2 Remove the top cover refer to Figure 4 1 3 Unlock the latch at the top of the support bar by turning the latch counterclockwise 1 4 turn Figure 4 4 Pull the support
109. s aux d charges lectrostatiques qui peuvent les endommager Prenez les dispositions et pr cautions de mise la terre n cessaires lors de la manipulation de cartes et de composants A Vorsicht Removing a DIM Einige im PathBuilder S24x 26x and 27x switch verwendeten Komponenten sollten keinen elektrostatischen Entladungen ausgesetzt werden durch die interne Bauteile besch digt werden k nnen Wenden Sie die entsprechenden Ma nahmen zur Erdung und zum Schutz vor statischen Ladungen bei der Handhabung von Karten und Komponenten an To remove a DIM lift it from its socket as shown in Figure 3 4 Be sure that you do not bend the pins during removal PathBuilder S24x 26x and 27x Switch Hardware Installation 3 13 Installing SIMMs Installing SIMMs Introduction This section explains how to install different types of SIMMs on the motherboard e DRAM There are two types of DRAM Global DRAM This is memory that is accessible by all the boards in the PathBuilder S24x 26x and 27x switch Processor DRAM This is memory dedicated to the PathBuilder S24x 26x and 27x switch s processor The PathBuilder S24x 26x and 27x switch motherboard comes with 8 Mbytes of Processor DRAM and 4 Mbytes of Global DRAM You can add additional DRAM for a total of 8 Mbytes of Global and 16 Mbytes of Processor DRAM e FLASH This is nonvolatile read write memory e CMEM This is nonvolatile battery backed up configuration memory
110. s list the physical electrical and environmental specifications for the PathBuilder S24x 26x and 27x switch Height 17 8 in 45 3 cm Width 10 0 in 25 5 cm Depth 16 8 in 42 8 cm Weight fully configured 27 5 Ib 12 5 kg Power Output 200 W max AC Input The standard AC Input power supply module features an external voltage select switch IEC line input jack internal 3 1 8 in fan and internal fusing e 90 VAC to 132 VAC 6 Amps RMS max 50 60 Hz e 180 VAC to 264 VAC 3 Amps RMS max 50 60 Hz DC Input The optional DC Input power supply module features a covered input terminal block an internal 3 1 8 in fan and internal fusing e 36V to 72V 10 Amps RMS max PathBuilder S24x 26x and 27x Switch System 0 C to 50 C 32 F to 122 F Storage Temperature 40 C to 70 C 40 F to 158 F Relative Humidity 5 to 95 noncondensing PathBuilder S24x 26x and 27x Switch Specifications B 1 B 2 PathBuilder S24x 26x and 27x Switch Specifications Appendix C PathBuilder S24x 26x and 27x Switch Error Codes Overview Numeric LED Display The 2 character numeric LED display provides system diagnostic codes to assist in troubleshooting When the Service LED is ON a 2 digit code on the numeric LED display corresponds to a certain event or failure Status Display Error Codes The following table lists the codes that may appear
111. slot channel on a specific T1 or El line is mapped to a virtual port Virtual ports are numbered from 100 to 254 whereas ports with actual physical connections are numbered from 1 to 54 The Virtual Port Mapping Table must be configured in conjunction with other records as follows e Configure the physical port record as either T1 or El and all virtual ports before you configure the Virtual Port Mapping Table e Configure a Virtual Port Mapping Record to assign a timeslot number per T1 E1 channel for the application Figure 5 4 shows the Virtual Port Mapping Table Node nodename Address blank Date Time nn Menu Configure Path Main 6 15 Node 20 Virtual Port Mapping Table Virtual Port Number L Port Type T1 E1 Port Number Timeslot Number DSORate Figure 5 4 Virtual Port Mapping Table Channelized Data Configuring Channelized Data Configuring the Virtual Mapping Perform this procedure to configure the Virtual Port Mapping Table Table Step Action Result 1 From the CTP Main menu select The Configure menu appears Configure 2 Select Virtual Port Mapping The first parameter appears Table from the Configure menu Virtual Port Number as shown in Figure 5 4 Enter a value for each parameter The next parameter appears Enter a semicolon lt gt once you The record is saved have entered values for all parameters Virtual Por
112. t 1 2 or 4 wire Jumpers Port 2 Complex Impedance Jumpers Port IRM Port 1 LC Remote Busy Local Busy Pin Pin 1 77 Port 2 RM Port 2 LC Remote Busy Local Busy Figure 1 15 DSPM E amp M Card About the PathBuilder S24x 26x and 27x switch 1 27 Hardware Components LEDs The card contains four LEDs that can be viewed through the rear bracket LED Color LED is Indicating Port 1 Local Green On local physical connection is active Busy Off offhook local physical connection is idle onhook Port 1 Remote Green On remote end is active offhook Busy Off remote end is idle onhook Port 2Local Green On local physical connection is active Busy Off offhook local physical connection is idle onhook Port2 Remote Green On remote end is active offhook Busy Off remote end is idle onhook 1 28 About the PathBuilder S24x 26x and 27x switch Hardware Components Setting Jumpers for DSPM Card with Analog E amp M Interface Introduction Default Jumper Settings The DSPM EM card has a total of 12 jumpers that you can set for various applications if required e Ten jumpers for two or four wire operation e Two jumpers for MVIP clock termination not used at present The DSPM EM card ships from the factory with the ten jumpers for two or four wire operation set to four wire Jumper Definitions Jumpers J11 through J15 are associated with Port
113. t This section describes parameters for the Virtual Port Mapping Table Mapping Table Parameters Virtual Port Number Range 100 to 254 Default blank Description The timeslot logical channel a virtual port number to which a specific T1 or El card s port number is mapped Port Type Range Voice Data Default Voice Description Specify the type of traffic you are passing Boot Type Changes to this parameter require a Node boot to take effect Physical T1 E1 Port Number Range 49 or 50 Default blank Description T1 or El port number associated with this logical timeslot channel a virtual port number Boot Changes to this parameter require a Node boot to take effect Channelized Data 5 21 Configuring Channelized Data Time Slots Range 1 to 31 Default 1 Description Each time slot provides a 64k channel to pass traffic Specify the time slot assignment for the logical channel e 1 to 24 for T1 port type e 1 to 31 for El port type 16 is not allowed Boot Type Changes to this parameter require a Node boot to take effect DSO Rate Range 56k 64k Default 56k Description Specify the DSO Rate This sets the rate of speed for each time slot Boot Type Changes to this parameter require a Node boot to take effect 5 22 Channelized Data Overview Appendix A Cables
114. tandard ISA bus Figure 1 6 shows a rack mountable PathBuilder S24x 26x and 27x switch SSN Status Label LEDs Front View Reset Button Product ID Label Ethernet Routing Rear View Card Ports Slots 1 through 8 115 230 VAC Expansion T O Ports 1 2 3 6 PathBuilder S200 Series Optional 48V Power Supply Voltage Select Switch Figure 1 6 PathBuilder S24x 26x and 27x Switch About the PathBuilder S24x 26x and 27x switch Hardware Components Hardware Components This table lists and briefly describes the hardware components that make up the PathBuilder S24x 26x and 27x switch More detailed descriptions of these components follow Component Description Enclosure A rack mount unit that contains all the PathBuilder S24x 26x and 27x switch processor cards Back Panel Contains power outlets power switch communication ports and slots for I O cards Motherboard Contains five data ports e Ports 1 and 2 are DIM ports e Port 3 is a high speed V 36 DTE port e Port 4 is the Ethernet AUI port see below for limitations e Port 6 is reserved for the control terminal port Contains eight full size expansion slots Integral DSU DIM An option used in installations requiring connection to a Optional DDS interface confor
115. this Port record This sets up the physical T1 E1 ports on the PathBuilder S24x 26x and 27x switch performing Channelized Data See the Configuring T1 and El Physi cal Ports section on page 5 5 Virtual Port Record for each remote This sets up a Virtual Port Record entry connection for each connection between the Path Builder S24x 26x and 27x switch and a remote node See the Configuring Vir tual Ports on the PathBuilder S24x 26x and 27x Switch section on page 5 18 Virtual Port Mapping Table This sets up a timeslot for each connection between the PathBuilder S24x 26x and 27x switch and the remote nodes Refer to the Configuring Virtual Port Mapping Table section on page 5 20 5 3 Configuring Channelized Data 5 4 Channelized Data Configuring T1 and E1 Physical Ports Configuring Channelized Data Introduction You have to configure the physical ports for the T1 E1 connections between the remote nodes and the PathBuilder S24x 26x and 27x switch T1 E1 physical ports are configured as ports 49 and 50 on the PathBuilder S24x 26x and 27x switch You can configure up to two T1 or El ports per node There is an overall limitation of 30 Channelized Data ports for a T1 or El card installed in anode The remaining ports can be used for voice traffic Configuration Follow these steps to configure the physical ports on the PathBuilder S24x 26x and
116. tion 2 1 408 764 6883 1 408 764 7120 Technical Support Numerics 10 Base 2 Transceiver 1 9 10 Base T Transceiver 1 41 3Com bulletin board service 3Com BBS D 2 3Com URL D 1 3ComFacts D 2 48V Ringer Power Supply Card and Enclosure cables required 1 39 description 1 38 example of figure 1 38 jumpers definitions 1 38 installing 1 38 locations 1 38 A Alarms Channelized Data 5 1 Application Example cluster 1 5 Performance Branch Node 1 3 Regional Concentrator 1 4 Audience vii Back Panel 1 16 Battery lithium removing replacing 4 14 BPV bilpolar violation 3 8 Branch Node Application 1 3 bulletin board service D 2 Cc C negative sealing current 3 8 C positive sealing current 3 8 Cabling 3 22 CTP 3 22 VO ports 3 22 Mesh Network 3 27 the PathBuilder S24x 26x and 27x Switch 3 17 Canadian 1 42 Channelized Data alarms 5 1 configuring 5 3 Index description 5 1 sample application 5 2 statistics 5 1 virtual ports configuring 5 18 Checking Equipment 2 4 CL CSU loopback 3 9 CLK clock mode 3 9 Cluster Application Example 1 5 CMEM SIMM 1 13 Cold Restart 3 24 Configure clock source parameter 3 7 Configuring El port guidelines for use 5 13 parameters 5 13 Virtual Port Mapping Table description 5 20 example of figure 5 20 parameters 5 21 Connecting the Control Terminal Port CTP 3 22 to the Network Manager 3 22 Control Terminal Loopbacks 3 10 Cover top removing replacing 4 3
117. ttach to one of its two connectors When you receive a DSPM FXS card do the following Step Action 1 Remove the card from the packing material 2 Inventory the contents of the shipping container E Note No cables are shipped with the DSPM FXS card The appropriate 6 position power cable and status cable ship with the 48V ringer power supply card that must be used in conjunction with the DSPM FXS card 3 Power off the PathBuilder S24x 26x and 27x switch node Install the card into the PathBuilder S24x 26x and 27x switch node Cable the card to the 48V ringer power supply as required The DSPM FXS card requires installation of a 48V ringer power supply card and enclosure into the PathBuilder S24x 26x and 27x switch node Refer to the 48V Ringer Power Supply Card and Enclosure section on page 1 38 The DSPM FXS interface card requires a 48V ringer power supply cable which can attach up to two DSPM FXS cards to the power supply The cable ships with the 48V ringer power supply card and enclosure For details concerning how to install and cable the DSPM card to the 48V ringer power supply card and enclosure refer to the 48V Ringer Power Supply Card and Enclosure section on page 1 38 About the PathBuilder S24x 26x and 27x switch Hardware Components DSPM FXS Card Figure 1 20 shows an example of the DSPM card with an analog FXS interface Illustration MVIP Clock T
118. type of framing the DS1 circuit uses ESF Extended SuperFrame e SF SuperFrame Line Coding Type Range B8ZS B7ZS AMI Default B8ZS 5 7 Configuring Channelized Data 5 8 Line Coding Type continued Description Selects type of zero suppression used on the T1 link e B8ZS Consecutive 8 zero suppression clear channel e B7ZS Stuffing 56k x N e AMI Alternate mark inversion user equipment must maintain density Transmit Clock Range INT REC Default INT Description Selects the source of transmit clock e INT Internal Oscillator e REC Received Timing E Note Only one T1 port on the card can be selected for REC timing Line Build Out Range 0 to 4 Default 0 Description Select the Line Build Out to match the physical interface For a DSX interface select the number based on the cable length e 0 0 to 133 ft e 1 134 to 266 ft e 2 267 to 399 ft e 3 400 to 533 ft e 4 534 to 655 ft For a DS1 interface select the number based on the signal level 0 0 dB e 1 7dB e 2 15 dB e 3 22 dB e 4 Invalid for DS1 interfaces Facility Data Link Range None ANSI ATT Default None Description Describes the use of the facility data link channel Appears only if ESF is selected as Line Framing Type Channelized Data Channelized Data Configuring Channelized Data
119. ult the dealer or an experienced radio television technician for additional circuits You may find the following booklet prepared by the FCC helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington D C 20402 Stock No 004 000 00345 4 About the PathBuilder S24x 26x and 27x switch 1 47 FCC Information 1 48 About the PathBuilder S24x 26x and 27x switch Chapter 2 Preparation and Unpacking Overview Introduction This chapter summarizes information you need and activities you must complete before installing your PathBuilder S24x 26x and 27x switch system It describes how to select an operating environment and how to unpack the enclosure Preparation and Unpacking 2 1 Before Installing Your PathBuilder S24x 26x and 27x Switch Before Installing Your PathBuilder S24x 26x and 27x Switch Introduction Selecting an Operating Environment 2 2 Before installing your PathBuilder S24x 26x and 27x switch be sure to complete the following steps e Verify that the configuration worksheets are accurate and complete Be sure that they are prepared beforehand according to your network requirements e Be sure you have all the required information from your service provider e Configure connect and test the network termination unit for example a CSU through which the PathBuilder S24x 26x and 27x switch connects to
120. ur mit den des selben Type auf anderen Ger ten verbindet werden Caution The socket outlet shall be installed near the equipment and shall be easily accessible Mise en Garde Pour mettre hors tension l appareil debrancher la prise lectrique La prise lectrique doit tre situ e a proximit de l quipement et elle doit tre d acc s facile Vorsicht Die Steckdose soll nahliegend der Einrichtung installiert werden und leicht erreichbar sein 4 Warning Only qualified service personnel should perform the procedure described in this section Use of this procedure by unqualified personnel could result in personal injury or equipment damage and could jeopardize your warranty and maintenance agreement PathBuilder S24x 26x and 27x Switch Hardware Installation 3 1 3 2 4 Avertissement Seules des personnes qualifi es peuvent mettre en pratique les proc dures d crites dans cette section Dans le cas contraire des risques de blessures ou d endommagement du mat riel sont possibles ce qui pourrait annuler votre garantie et votre contrat de maintenance 4 Warnung Die in diesem Abschnit aufgef hrten Vorg nge sollten ausschlie lich von geschultem und qualifiziertem Servicepersonal durchgef hrt werden Wenn diese Vorg nge von unqualifiziertem Personal durchgef hrt werden kann dies zu Personensch den oder einer Besch digung des Ger tes f hren und dar ber hinaus Ihren Anspruch auf Garantieleistung und Ku
121. ure 1 22 and Figure 1 23 Figure 1 22 and Figure 1 23 show jumper positions on the 48V ringer power supply card for 25 or 50 Hz ring frequency and how to install the jumpers for 25 or 50 Hz ring frequency About the PathBuilder S24x 26x and 27x switch Hardware Components Cables Required The 48V ringer power supply card is shipped with one cable with six connectors 48V Power Supply Connector to each DSPM card Ring Enable Jumper Must be Configured as Shown Jumper Set for 25 Hz Ring Frequency Power Connectors to Jumper Set Main AC Power Supply for 50 Hz Ring Frequency Status Connector Figure 1 22 Standard 48V Ringer Power Supply Card and Enclosure About the PathBuilder S24x 26x and 27x switch 1 39 Hardware Components Ring Enable Jumper 12 Must be Configured eae as Shown J11 Jumper Set for 25 Hz gt P e e Ring Frequency _7 J11 Jumper Set for 25 Hz Ring Frequency Output Connectors Power Connectors to Main AC Power Supply Status Connector Figure 1 23 Enhanced 48V Ringer Power Supply Card and Enclosure 1 40 About the PathBuilder S24x 26x and 27x switch Hardware Components 10BaseT Transceiver Description This transceiver is designed to provide Ethernet 10baseT support for the PathBuilder S24x 26x and 27x switch It can accommodate different 10BaseT configurations through
122. y and the fan Removing the Perform these steps to remove the top cover of the PathBuilder S24x 26x and 27x Cover switch Step Action 1 Verify that the power is OFF Remove the six screws from the back of the chassis Figure 4 1 Pull the cover toward the rear of the unit approximately 1 4 inch 2 3 4 Lift up to release from the sliding clips E Note Be sure not to damage spring clips on chassis Maintenance 4 3 Removing Replacing Top Cover Example Figure 4 1 shows an example of removing the top cover of the PathBuilder S24x 26x and 27x switch Pull cover 1 4 in toward rear Figure 4 1 Removing the Top Cover Lift cover Remove six screws Replace the Cover To replace the top cover reverse the steps just detailed in Removing the Cover 4 4 Maintenance Removing Replacing Front Panel Cover Removing Replacing Front Panel Cover Introduction This section describes how to remove the front panel cover The auxiliary fan is attached to the front panel cover Remove the Front Perform these steps to remove the front panel cover Panel Cover Step Action 1 Verify that the power is OFF 2 Remove the top cover as shown in Figure 4 1 3 Remove the ribbon cable connecting the LED display card to the motherboard The ends of the cable are keyed simplifying cable replacement Figure 4 2

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