Patton electronic 1004 Network Card User Manual
Contents
1. Figure 4 shows how to wire the two pair cables properly for a Model 1004 star topology Note that the ground connection is not needed HOST FIRST SLAVE SECOND SLAVE XMT RCV kuma ee RCV XMT RCV z RCV RCV XMT ma XMT RCV XMT oe XMT Figure 4 Star wiring for Model 1004 host and slaves 4 2 2 DAISY CHAIN TOPOLOGY Using a daisy chain topology you may connect several Model 1004s together in a master slave arrangement Maximum distance between the units will vary based upon the number of drops data rate wire gauge etc Call Technical Support for specific distance estimates Figure 5 shows how to wire the two pair cables properly for a Model 1004 daisy chain topology Note that the ground connection is not needed HOST FIRST SLAVE OTHER SLAVE S XMT RCOV RCV XMT RCV RCV RCV XMT XMT RCV XMT XMT Figure 5 Daisy chain wiring for Model 1004 host and slaves Optional Connection Dual Modular Jacks To facilitate daisy chaining the Model 1004 is available in a DRJ11 dual RJ 11 or DRJ45 dual RJ 45 version These units have two specially wired modular jacks for twisted pair connection 13 With the dual modular units you won t need to build cumbersome Y cables for your daisy chain application Si2. s it is necessary to use a crossover cable The diagrams below show how a crossover cable should be constructed for the following environments 4 wire RJ 11 4 wire RJ 45 2 wire RJ 11 or 2 wire RJ 45 RJ 11 Cable 4 Wire SIGNAL SIGNAL GNDt GNDt RCV XMT XMT RCV XMT RCV RCV XMT GNDt GNDt Connection to ground is optional 11 RJ 45 Cable 4 Wire SIGNAL PIN PIN SIGNAL GND 2 7 GND RCV 3 5 XMT XMT 4 6 RCV XMT 3 RCV RCV 6 4 XMT GND 2 GND RJ 11 Cable 2 Wire SIGNAL PIN PIN SIGNAL XMT 3 3 XMT XMT 4 4 XMT RJ 45 Cable 2 Wire SIGNAL PIN PIN SIGNAL XMT 4 4 XMT XMT 5 5 XMT tConnection to ground is optional 4 2 WIRING FOR MULTIPOINT CIRCUITS The Model 1004 supports multi point applications using either a star or daisy chain topology Both topologies require special wiring as well as specific DIP switch settings for master and slave units Note Refer to Section 3 2 2 for multipoint DIP switch settings 4 2 1 STAR TOPOLOGY Using a star topology you may connect several Model 1004s together in a master slave arrangement Maximum distance between the units will vary based upon the number of drops data rate wire gauge etc Call Technical Support for specific distance estimates 12
3. 3 DCE jB DTE Figure 2 Close up of the external DCE DTE switch 3 2 ACCESSING THE CONFIGURATION SWITCHES The five switches shown in Figure 3 configure the Model 1004 for RTS CTS delay echo method of carrier control impedance and 2 wire 4 wire operation These switches are located internally on the Model 1004 s PC board To access switch set 1 SW1 and switch set 2 SW2 use a small flat blade screwdriver to pop open the Model 1004 s case as shown in Figure 4 BE OFF 3 1 W Figure 3 Close up of switches SW1 and SW2 on the PC board fmm Le IE Figure 4 Opening the Model 1004 s plastic case with a small screwdriver 3 2 1 SWITCH SETTINGS All possible settings for the Model 1004 s configuration switches are presented in the summary table below If you have additional questions contact Technical Support at 301 975 1000 SWITCH SUMMARY TABLE Position Function Off Position On Position SW1 1 RTS CTS Delay OmS 8mS SW1 2 Echo Enable Echo Off Echo On SW1 3 Carrier Control Constantly On Controlled by RTS SW1 4 Impedance High 120K Ohm Low 120 Ohm SW2 2 wire 4 wire 2 wire 4 wire SW 1 1 RTS CTS Delay The setting for Switch SW1 1 determines the amount of delay between the time the Model 1004 sees RTS and when it sends CTS This option is available in DCE mode only SW1 1 Off On Setting OmS 8mS SW 1 2
4. NOTE RTS CTS Delay setting should be based upon transmission timing 4 0 INSTALLATION Once the Model 1004 is properly configured it is ready to connect to your system This section tells you how to properly connect the Model 1004 to the twisted pair and RS 232 interfaces and how to operate the Model 1004 4 1 TWISTED PAIR CONNECTION The Model 1004 supports data only communication between two RS 232 devices at distances to 9 4 miles and data rates to 115 2 Kbps There are two essential requirements for installing the Model 1004 1 These units work in pairs Therefore you must have one Model 1004 at each end of a two twisted pair interface In multipoint environments there must be one Model 1004 at the RS 232 host and one at each RS 232 terminal 2 To function properly the Model 1004 needs two twisted pairs of metallic wire These pairs must be unconditioned dry metallic wire between 19 and 26 AWG the higher number gauges may limit distance Standard dial up telephone circuits or leased cir cuits that run through signal equalization equipment are not acceptable For your convenience the Model 1004 is available with several different twisted pair interfaces RJ 11 jack RJ 45 jack terminal blocks with strain relief and dual modular jacks for multipoint daisy chaining 4 1 1 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS If your application requires you to connect one or two pairs of bare wires to the Model 1004 you
5. turns on after the terminal raises RTS Carrier The carrier is switch selected either continuous operation or switched operation controlled by RTS Surge Protection 600W power dissipation at 1 mS and response time less than 1 0 pS Power No external power required uses ultra low power from EIA data and control signals Size 2 66 x 2 10 x 0 73 15 APPENDIX B RS 232 PIN CONFIGURATIONS DIRECTION DCE SETTING DIRECTION To Mode 1004 Data Term Ready DTR 20 1 FG Frame Ground 2 TD Transmit Data 3 RD Receive Data 4 RTS Request to Send 5 CTS Clear to Send 6 DSR Data Set Ready 7 SG Signal Ground 8 DCD Data Carrier Detect To Model 1004 From Model 1004 To Model 1004 From Model 1004 From Model 1004 From Model 1004 DIRECTION DTE SETTING DIRECTION From Model 1004 Data Term Ready DTR 20 1 FG Frame Ground 2 TD Transmit Data 3 RD Receive Data 4 RTS Request to Send 5 CTS Clear to Send 6 DSR Data Set Ready 7 SG Signal Ground 8 DCD Data Carrier Detect From Model 1004 To Model 1004 From Model 1004 To Model 1004 To Model 1004 To Model 1004 APPENDIX C BLOCK DIAGRAM Swi o o 16 ms DE
6. Echo Enable Switch SW1 2 determines whether the Model 1004 echoes data back to the transmitting device Half duplex modes only SW1 2 Off On SW 1 3 Carrier Control Method Setting Echo Off Echo On Switch SW1 3 determines whether the carrier is constantly on or controlled by RTS This setting allows for operation in switched carri er multipoint and or hardware handshaking applications SW1 3 Off On Setting Constantly on Controlled by RTS 5 SW 1 4 Impedance Switch SW1 4 defines a termination resistance The Model 1004 s generator can drive 50 unit loads including two termination resistances of 120 Ohms each SW1 4 Setting Off High 120K Ohm On Low 120 Ohm SW 2 2 Wire 4 Wire Switch SW1 4 determines whether the Model 1004 will operate in either 2 wire or 4 wire mode SW1 4 Setting Off 2 wire On 4 wire 3 2 2 CONFIGURATION SWITCH APPLICATIONS The table below shows you how to set the Model 1004 s configu ration switches to fit several common applications If you have any questions call Patton Technical Support at 301 975 1007 TYPICAL SWITCH APPLICATIONS Switch Point to Point Multi point Settings 4w 4W HDX 2W 4W 2W SW1 1 RTS CTS ON ON ON ON ON SW1 2 Echo OFF ON OFF ON OFF SW1 3 Carrier OFF ON ON Master OFF ON Slaves ON SW1 4 Impedance ON ON ON Master ON Slaves HIGH Last Slave ON SW2 2 wire 4 wire ON ON OFF ON OFF
7. LAY WITH SW LIN THE ON POSITION CLOSED os RTS MUST BE ON ie POSITIVE VOLTAGE a ee TOERNABLE DATA TRANSMISSION of 1 2 BUFFER ot DRIVER SIER XMT BUFFER DRIVER aera 1 XMT 4 at swe iis la E G a 5 3 GND oo MODEL 10045 ee ONLY 7 SCHMITT ECHOED DATA DOES gt J TRIGGER NOT ACTIVATE THE CDCIRCUIT a 5 RWF CARRIER DIFFERENTIAL SURGE RVE DETECT AMPLIFIER PROTECTION 4 Rea swa v eee 5v FUNCTION OPEN lt LOsED swi CARRIER CONSTANT RTSCONTROLLED KIZA swe BCHOENABLE ECHO OFF ECHO ON i swa CONFIGURATION 4WIRE 2WIRE SWA IMPEDANCE HIGH 400K OHM LOW 120 OHM PATTON ELECTRONICS COMPANY Tie MODEL 1004 BLOCK DIAGRAM Size Document Number REV A OBA047A01 O1 B Dete September 4 1990 Sheet 1 sl 1 17
8. MATION Thank you for your purchase of this Patton Electronics product This product has been thoroughly inspected and tested and is warrant ed for One Year parts and labor If any questions or problems arise during installation or use of this product please do not hesitate to con tact Patton Electronics Technical Support at 301 975 1007 2 1 FEATURES e Operates asynchronously point to point or multipoint Up to 50 multipoint device drops in a polling environment e Data rates to 115 2 Kbps e Passes transmit amp receive data one control signal each direction e DCE DTE switch selectable on RS 232 interface e No AC power or batteries are required e Variable high low impedance settings e Carrier can be set as constantly on or controlled by RTS 2 2 DESCRIPTION The Model 1004 High Speed Multipoint Short Range Modem provides exceptional versatility in a compact package Requiring no AC power or batteries for operation the Model 1004 supports asyn chronous RS 232 data rates to 115 2 Kbps over one or two uncondi tioned twisted pair Distances up to 9 4 miles are attainable at lower data rates 19 2 Kbps 19 AWG twisted pair The Model 1004 can handle up to 50 terminal drops in a multipoint polling environment For RS 485 and serial printer applications requir ing hardware handshaking the Model 1004 passes one control signal in each direction The Model 1004 may be configured for high or low impedance operation a
9. USER MANUAL MODEL 1004 and 1004S High Speed Multipoint Short Range Modem Pa PATTON 3 Electronics To Part 07M1004 C SALES OFFICE Doc 047011UC Revised 8 10 95 301 975 1000 TECHNICAL SUPPORT 301 975 1007 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 1004 components to be free from defects and will at our option repair or replace the prod uct should it fail within one year from the first date of shipment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modifi cation If this product fails or does not perform as warranted your sole recourse shall be repair or replacement as described above Under no condition shall Patton Electronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequen tial damages arising from the use of or inability to use this product Patton Electronics specifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed an acceptance of these terms by the user 1 1 RADIO AND TV INTERFERENCE The Model 1004 generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and tele vision rec
10. eption The Model 1004 has been tested and found to com ply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interfer ence will not occur in a particular installation If the Model 1004 does cause interference to radio or television reception which can be deter mined by disconnecting the RS 232 interface the user is encouraged to try to correct the interference by one or more of the following meas ures moving the computing equipment away from the receiver re ori enting the receiving antenna and or plugging the receiving equipment into a different AC outlet such that the computing equipment and receiver are on different branches 1 2 SERVICE All warranty and non warranty repairs must be returned freight prepaid and insured to Patton Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from Patton Electronics Technical Service at 301 975 1007 Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Model 1004 Technical Service hours 8AM to 5PM EST Monday through Friday 2 0 GENERAL INFOR
11. ish connecting the wires to the terminal block the assembly should resemble the diagram below LINX 9 A9H 9 Place the 2 halves of the strain relief assembly on either side of the telephone wire and press together very lightly Slide the assem bly so that it is about 2 inches from the terminal posts and press together firmly If your cable diameter is too small or too large for our strain relief please contact our technical support We have strain relief assemblies to accommodate most cable diameters LWX 9 A9H 10 Insert the strain relief assembly and wire into the slot in the bottom half of the modem case Set it into the recess in the case 11 BEND the top half of the case as necessary to place it over the strain relief assembly Do not snap the case together yet mme 12 Insert one captive screw through a saddle washer Then insert the entire piece through the hole in the DB 25 end of the case Snap that side of the case closed Repeat the process for the other side This completes cable installation 10 4 1 2 TWISTED PAIR CONNECTION USING RJ 11 OR RJ 45 The RJ 11 and RJ 45 connectors on the Model 1004 s twisted pair interface are pre wired for a standard TELCO wiring environment The signal pin relationships are shown below RJ 11 SIGNAL RJ 45 SIGNAL Connection to ground is optional oukWM ONMOIRWOM AT amp T standard modular color codes When connecting two Model 1004
12. mply use a crossover cable to go between the host and the first slave see Section 4 1 2 for crossover cable wiring instructions and straight through cables between the slaves 4 3 CONNECTION TO THE RS 232 INTERFACE Once you have properly configured the Model 1004 and connect ed the twisted pair wires correctly simply plug the Model 1004 directly into the DB 25 port of the RS 232 device Remember to insert and tighten the two captive connector screws Note If you must use a cable to connect the Model 1004 to the RS 232 device make sure it is a straight through cable of the shortest possible length we recommend 6 feet or less 4 4 OPERATING THE MODEL 1004 Once the Model 1004 is properly installed it should operate trans parently as if it were a standard cable connection Operating power is derived from the RS 232 data and control signals there is no ON OFF switch All data signals from the RS 232 and RS 485 inter faces are passed straight through Additionally one hardware flow control signal is passed in each direction 14 APPENDIX A SPECIFICATIONS Transmission Format Asynchronous Data Rate Up to 115 200 bps Transmit Line 2 4 wire unconditioned twisted pair Transmit Mode Full or half duplex Transmit Level 0 dBm Range Up to 9 miles Control Signals In DCE mode DSR turns ON immediately after the terminal raises DTR DCD turns ON after recogniz ing the receive signal from the line CTS
13. nd carrier may be set to constantly on or controlled by RTS Options for twisted pair connection include terminal blocks with strain relief RJ 11 RJ 45 and dual modular connectors for daisy chain ing The surge protected Model 1004S incorporates Silicon Avalanche Diodes which provide 600 watts per wire of protection against harmful data line transient surges 3 0 CONFIGURATION The Model 1004 is configured using sik PC board mounted switch es Figure 1 shows the switch locations along with the location of the terminal blocks and optional surge protectors DCE DTE Switch Surge J Suppressors UDOUOUUOUUUOU 1004S only 2 Wire 4 Wire gt Switch Terminal ar Block Control eeee Switches oe JUHE E TETON Figure 1 Model 1004 board showing switch locations 3 1 SETTING THE DCE DTE SWITCH For your convenience the Model 1004 has an externally accessi ble DCE DTE switch Figure 2 If the device connected to the Model 1004 is a modem or multiplexer or is wired like one set the switch to DTE This setting causes the Model 1004 to behave like Data Terminal Equipment and transmit data on pin 2 If the device connected to the Model 1004 is a PC terminal or host computer or is wired like one set the switch to DCE This set ting causes the Model 1004 to behave like Data Communications Equipment and transmit data on pin
14. will need to open the case to access the terminal blocks The following instructions will tell you how to open the case connect the bare wires to the terminal blocks and fasten the strain relief collar in place so the wires won t pull loose 1 You should already have the case open for the configuration procedure If not see Section 3 2 2 Strip the outer insulation from the twisted pair s about one inch from the end T NI 3 Strip the insulation on each of the twisted pair wires about 25 eS 4 In a two pair circuit connect one pair of wires to XMT and XMT transmit positive and negative on the terminal block making careful note of which color is positive and which color is negative 5 Connect the other pair of wires to RCV and RCV receive positive and negative on the terminal block again making careful note of which color is positive and which color is negative Ultimately you will want to construct a two pair crossover cable that makes a connection with the two Model 1004s as shown below 6 XMT XMT XMT XMT shown below 7 If there is a shield around the telephone cable it may be con nected to G on the terminal block To avoid ground loops we recom mend connecting the shield at the computer end only A ground wire is not necessary for proper operation of the Model 1004 8 When you fin
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