Cisco Systems 6200 Server User Manual
Contents
1. Figure 1 10 SLC 8CAP Operation Public telephone network SLC Cell i filter ADSL Porti 2a modem R f POTS m CAP splitter ana transceiver arbitration POTS ATM NTC splitter Port 2 Port 3 Cisco 6200 Port 8 S Fo ase ei ily A ek Sa a tw oh a Cisco 6200 User Guide 1 23 1 Hardware Description 78 5296 02 10 02 98 1 5 2 SLC 8CAP Physical Description Up to 10 SLCs can be installed in a Cisco 6200 cabinet The cabinet slots assigned to the SLCs are slot 5 through slot 14 The CAP SLC s faceplate is labeled SCL 8CAP The faceplate Figure 1 11 includes the fixtures discussed in the following paragraphs Reset Switch The reset switch is recessed behind the faceplate to avoid accidental activation It is not for customer use LED Indicators Table 1 9 describes the LEDs on the faceplate of the SLC Figure 1 11 SLC 8CAP Faceplate meg lt Card status LEDs so lt Port status LEDs o lt Reset switch 11947 1 24 Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 Table 1 9 SLC 8CAP LEDs LED Color Condition Indicated POWER Green The SLC is receiving power READY Green The SLC is experiencing no problems Yellow At least one port on the SLC is in line test mode Off2. 10 to 95 noncondensing 1 A fully loaded chassis has 1 fan tray 2 PEMs 1 MPC 1 NTC 10 SLCs covers and dangler cables 2 A chassis with no cards has 1 fan tray 2 power entry modules covers and dangler cables 3 The chassis can operate safely at short term operating temperatures only if all of the fans are working properly If a fan fails in a chassis that is experiencing an ambient temperature above 104 F 40 C thermal damage may occur Table 1 2 Standards and Certifications Category Description NEBS Bellcore SR 3580 to Level 3 GR 63 GR 1089 EMI FCC Part 68 and part 15 Class A CSA Class A EN55022 Class A AS NRZ 3548 Class A VCCI Class 1 Safety UL 1950 EN60950 CSA C22 2 No 950 AUSTEL TS001 AS NZS 3260 Immunity EN61000 4 2 IEC 1000 4 2 EN61000 4 3 IEC 1000 4 3 EN61000 4 4 TEC 1000 4 4 EN61000 4 5 IEC 1000 4 5 EN61000 4 6 IEC 1000 4 6 EN61000 4 11 TEC 1000 4 11 1 8 Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 1 3 Network Trunk Cards NTCs This section describes the OC 3c and STM 1 network trunk cards NTCs The NTC module resides in slot 1 of the Cisco 6200 chassis 1 3 1 What is the NTC OC 3 The NTC is a service interface module that concentrates the data traffic from all Cisco 6200 subscriber ports and connects the node to a single trunk line from the service providing ATM network This full duplex channel unit carries data both downstr
3. See Appendix A Pin Assignments for pinouts PCMCIA Slots and Ejection Buttons The MPC provides two slots for PCMCIA Flash memory cards PCMCIA cards store system software and node configuration information An ejection button is located beneath each PCMCIA slot push the button to remove the card Ethernet Port The Ethernet port on the MPC is a 10BaseT port with an RJ 45 connector It is used to connect the Cisco 6200 to its management station See Appendix A Pin Assignments for pinouts Reset Switch The reset switch which initializes the MPC is recessed behind the faceplate to avoid accidental disturbance LED Indicators All LEDs on the MPC are described in Table 1 7 Table 1 7 MPC LEDs LED Color Condition Indicated POWER Green The MPC is receiving power READY Green The MPC is experiencing no problems Yellow The MPC failed its power on self test it has a hardware problem Refer to Chapter 7 Troubleshooting Off The MPC is either initializing or in test mode ACTIVE Green This MPC is active CRITICAL Red The system is experiencing a critical alarm A critical alarm affects many or all of the subscribers connected to the node Failure of the NTC or the trunk can cause a critical alarm Use the Cisco 6200 Manager or the command line interface to identify the problem MAJOR Red The system is experiencing a major alarm A major alarm affects several subscribers A total SLC failure
4. connected avoid exposure to laser radiation and do not stare into open apertures The fiber optic communication channels in the single mode trunk card NTC STM1 SM operate with laser energy which can be harmful especially to the eyes During normal operation this energy is confined to the cable and presents no danger To avoid injury when you are connecting or disconnecting optical channels observe these precautions Always disconnect the card from the backplane before connecting or disconnecting optical cables Always keep the protective cap on the optic connector when the connector is not in use Never look into an optical cable or connector Reset Switch The reset switch is recessed behind the faceplate to avoid accidental disturbance It is not for customer use Cisco 6200 User Guide 1 15 1 Hardware Description 78 5296 02 10 02 98 Figure 1 8 NTC STM 1 Faceplates NTC NTC STM1 SM STM1 MM powen o POWER o REAY O READY o m lt Card status LEDs gt rame of sec oly sec gjy E E el lt STM 1 port gt lel a Transmit and walt lt receive LEDs gt wo lt Reset switch gt 14271 Q Q LED Indicators Table 1 5 describes the LEDs on the faceplate of the NTC STM 1 1 16 Cisco 6200 User Guide 78 5296 02 10 0
5. The SLC is not communicating with the MPC This is the case when e The SLC is initializing The SLC has a hardware problem If the READY LED is off for an extended period when the POWER LED is on see the Cisco 6200 User Guide for instructions on troubleshooting the SLC PRIME Green The SLC is using the primary A bus to move information across the backplane SEC Green The SLC is using the secondary B bus to move information across the backplane Redundant systems only Ports 0 to 7 Green The following conditions exist The port is receiving the upstream heartbeat message regularly The heartbeat message indicates the CAP PIM has HEC alignment in the downstream direction The SLC has HEC alignment in the upstream direction The modems on both sides have negotiated the loop rates The port LEDs remain lit green in the presence of occasional minor alarms Flashing The loop is rate adapting training green Off One of the following conditions exists e The port is experiencing an intrusive line quality test The port is experiencing an intrusive CAP hardware test The port is disabled or is not configured Cisco 6200 User Guide 1 25 1 Hardware Description 78 5296 02 10 02 98 1 5 3 SLC 8CAP Specifications 1 26 Table 1 10 lists the physical and electrical specifications of the CAP SLC SLC 8CAP Table 1 10 SLC 8CAP Specifications Specification Description S
6. circuitry that relates to Cisco 6200 operation The module compartment includes 14 slots that hold the modules cards Slot 1 Holds the network trunk card NTC Slot 2 Holds the management processor card MPC Slots 3 and 4 Unoccupied in this release of the system Slots 5 to 14 Hold up to ten subscriber line cards SLCs All Cisco 6200 cards can be installed and removed while the rest of the system continues to operate However the system cannot pass data if the NTC is removed The NTC MPC and SLCs are described later in this chapter 1 2 Cisco 6200 User Guide 1 78 5296 02 10 02 98 Hardware Description Figure 1 1 Cisco 6200 Chassis Front View anal ai fa g c amp z a b AN DE AQI 2 7 Cisco Systems ee E3 oi C DN olf Le N SPID lt O S J io I OO OW 0 f PORTS PORTS ports ports ports f ports pon 4 EELEE SIEI EEE apa ah a ay E a E E A zgd yy ty ype 0 i VA oO ocr oO 0 fa ele gt o 1 7 o AIA TA IIIS al alalalalal al dia ot A A A Seo L J golo P 3 A SCi eee SLLLS LLIS LILLI SILILI TET ETT TTT TT y 1 2
7. have been reported Yellow The LRFI fault condition has been reported on the transmit side Red The PRFI fault condition has been reported on the transmit side RD Green None of the fault conditions that cause the LED to turn yellow or turn off have been reported Yellow One or more of the following fault conditions have been reported on the receive side LOS LOF LOP EQF LOCD LAIS Red One or more of the following fault conditions have been reported on the receive side PAIS LOST Signal Label Mismatch It is not possible to determine with a high degree of certainty the operational state of the link when one of these conditions is present Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 1 3 3 NTC OC 3 Specifications Table 1 4 lists the physical and electrical specifications of the NTC Table 1 4 Specification NTC OC 3 Specifications Description External interface One SONET STS 3c 155 Mbps Single mode intermediate reach and multimode OC 3c versions available Connector type SC Fiber types e Single mode up to 15 km e Multimode up to 2 km Average transmitted power e Single mode 11 5 dBm e Multimode 17 dBm Average received power e Single mode 28 to 8 dBm e Multimode 30 to 14 dBm Transmission distances e Single mode up to 15 km 9 2 miles e Multimode up to 2 km 1 2 miles Wavelength both modes 1310 nm Level 2 pr
8. the console Component status display of the Cisco 6200 Manager To turn off an audible alarm do one of the following Press the alarm cut off ACO button on the MPC Click the ACO button in the Cisco 6200 Manager component status display Use the alarmcutoff command at the console or via Telnet Use a switch or command on your external alarm device Cutting off an alarm has no effect on the alarm status of the system or on the indication of visual alarms To clear an alarm you must correct the condition that caused it To get information about the source of an alarm do one of the following Use the Cisco 6200 Manager See the User Guide for the Cisco 6200 Manager for instructions Use the command show dsl alarms See Chapter 7 Troubleshooting for more information on this command For a pinout list and additional information on connecting alarm relays see Appendix A Pin Assignments Cisco 6200 User Guide 1 5 1 Hardware Description 78 5296 02 10 02 98 Auxiliary Port Power Terminals J40 a 9 pin female connector on the Cisco 6200 backplane is an EIA TIA 232 RS 232 serial port connecting to the management processor card MPC J40 is an auxiliary craft port that can be used to connect devices such as terminals modems or laptop computers to the Cisco 6200 It is accessible from the rear of the chassis For a pinout list see Appendix A Pin Assignments J17 J18 J19 and
9. way Figure 1 4 Air Flow Through Intake and Exhaust Vents 1 2 6 DSLAM Specifications A Table 1 1 lists the specifications of the Cisco 6200 DSLAM Table 1 2 lists standards and certifications for the Cisco 6200 DSLAM Warning To prevent a Cisco 6200 system from overheating do not operate it in an area that exceeds the maximum recommended ambient temperature of 131 F 55 C Cisco 6200 User Guide 1 7 1 Hardware Description 78 5296 02 10 02 98 Table 1 1 Specification Cisco 6200 DSLAM Specifications Description Components 14 slot card compartment Backplane Fan compartment Power module compartment Power input Dual inputs each 48 VDC Tested voltages 48V and 57V Tolerance limits 42V to 57V Maximum input current 23A Power consumption fully loaded With SLC 8CAPs 820W With SLC 8DMTs 892W Dimensions Height 23 6 in 60 0 cm Width 17 5 in 44 4 cm mounting brackets not included Depth 11 8 in 30 0 cm Weight with no cards 48 Ib 21 7 kg Weight fully loaded 82 5 lb 37 4 kg Operating temperatures Short term 23 to 131 F 5 to 55 Long term 32 to 104 F 0 to 40 C Storage temperature 40 to 158 F 40 to 70C Operating humidity 15 to 90 noncondensing Storage humidity
10. which affects all of the subscribers connected to that card causes a major alarm Use the Cisco 6200 Manager or the command line interface to identify the problem MINOR Yellow The system is experiencing a minor alarm A minor alarm affects a small number of subscribers A partial SLC failure causes a minor alarm Use the Cisco 6200 Manager or the command line interface to identify the problem Slot 0 Green PCMCIA card slot 0 is being accessed by system software Slot 1 Green PCMCIA card slot 1 is being accessed by system software ACT Green The Ethernet port is receiving or transmitting data active LNK Green A 10BaseT link is present on the Ethernet port 1 20 Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 1 4 3 MPC Specifications Table 1 8 lists the physical and electrical specifications of the MPC Table 1 8 MPC Specifications Specification Description External Interfaces EIA TIA 232 console port 10BaseT Ethernet management port Internal Hardware MIPS RV4640 processor Galileo GT64011 memory management unit 16 MB of DRAM 8MB of Flash memory to store boot image 2 PCMCIA Flash card slots Dimensions width x height x depth 1 5 x 15 75 x 9 75 in 3 8 x 40 0 x 24 8 cm Weight 2 5 Ib 1 13 kg Power consumption 36 5W Cisco 6200 User Guide 1 21 1 Hardware Description 78 5296 02 10 02 98 1 5 Subscriber Line Card SLC T
11. 2 98 Hardware Description 1 Table 1 5 LEDs on the NTC STM 1 LED Color Condition Indicated POWER Green The module is receiving power READY Green The NTC is experiencing no problems Yellow The NTC failed its power on self test it has a hardware problem Refer to the Cisco 6200 User Guide for troubleshooting instructions Off The NTC is either initializing or in test mode PRIME Green This NTC is active and is using the primary bus SEC Green This NTC is active and is using the secondary bus Redundant systems only TD Green None of the fault conditions that cause the LED to turn yellow or turn off have been reported Yellow The LRFI fault condition has been reported on the transmit side RD Green None of the fault conditions that cause the LED to turn yellow or turn off have been reported Yellow One or more of the following fault conditions have been reported on the receive side LOS LOF LOP EQF LOCD LAIS 1 3 6 NTC STM 1 Specifications Table 1 6 lists the physical and electrical specifications of the NTC STM 1 Cisco 6200 User Guide 1 17 1 Hardware Description 78 5296 02 10 02 98 Table 1 6 Specification NTC STM 1 Specifications Description External interface One SDH STM 1 155 Mbps Single mode intermediate reach and multimode STM 1 versions available Connector type SC Fiber types e Single mode up to 15 km e Multimode up to 2 km Average trans
12. 2 Backplane Located behind the module compartment the backplane provides the following services Interconnects the MPC NTC and SLCs Connects the SLCs with the subscribers local loops or the POTS splitter Distributes power clocking and other common signals to all the modules Cisco 6200 User Guide 1 3 1 Hardware Description 78 5296 02 10 02 98 Figure 1 2 Cisco 6200 Chassis Rear View ry D Auxiliary port connector Primary A and Secondary B H Buses Ss 600 GO G0 Dangler cables for subscriber traffic Alarm relay connector 0050 00 The backplane s primary and secondary H buses horizontal buses link the MPC NTC and SLCs In this release the primary bus carries all traffic The buses operate at 160 Mbps total throughput Each H bus has two parts A downstream component broadcasts all cells received from the NTC interface to each SLC Logic on the SLC filters and directs cells destined for each port An upstream component provides a contention mechanism for cells received from subscriber ports to be funneled into the upstream NTC path Ethernet Management Bus A 10Base2 type Ethernet bus in the backplane carries internal management traffic between the cards 1 4 Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 Connections to POTS Splitter
13. 7 1 Hardware Description 78 5296 02 10 02 98 In the upstream direction the SLC receives ADSL signals from a POTS splitter and demodulates the DMT modulated signal Then the SLC channel contends with the other SLC channels for the upstream data bus Two priority levels are available For the first Cisco 6200 release only UBR service is available The SLC will ensure fair access among all cells of the same priority The SLC separates the upstream and downstream data channels The upstream data channel occupies a band between 25 875 kHz and 138 kHz The downstream data channel takes the band between 138 kHz and 1 104 MHz At the subscriber site the DSL customer premises equipment CPE the Cisco 676 for example demodulates the downstream signal and sends the data to the subscriber s PC Transmission Rates and Modem Training Two modes are available for setting transmission rates Rate adaptive mode You can set the subscriber ports to adapt train automatically to the highest line speed attainable for the configured signal to noise ratio SNR margin for each direction Explicit rate mode You can set SNR margins and transmission speeds explicitly Upstream and downstream speeds can be set separately You can mix rate adaptive and explicit modes on the same circuit using one mode for upstream traffic and the other for downstream traffic Rates available for downstream traffic range from 32 kbps to 8 032 Mbps in incremen
14. CHAPTER 1 Hardware Description This chapter provides an overview of the Cisco 6200 advanced digital subscriber line access multiplexer DSLAM and describes the system s hardware components The chapter is arranged as follows Cisco DSL Product Family on page 1 1 Cisco 6200 Chassis on page 1 2 Network Trunk Cards NTCs on page 1 9 Management Processor Card MPC on page 1 18 Subscriber Line Card SLC on page 1 22 Warning For translations of the safety warnings in this chapter see Appendix C Translated Safety A Warnings 1 1 Cisco DSL Product Family The Cisco 6200 is part of a family of digital subscriber line DSL products that provide end to end service carrying data between the subscriber s home or office the telephone central office CO and the networks beyond The Cisco 6000 family includes the following members The Cisco 6200 DSLAM is a CO grade multiplexer that supports up to 80 asymmetric digital subscriber line ADSL ports The Cisco 6200 sends and receives subscriber data often Internet service over existing copper telephone lines concentrating all traffic onto a single high speed trunk for transport to the Internet or the enterprise intranet ADSL customer premises equipment CPE devices which reside at the subscriber site connected to PCs or routers modulate data so that it can travel over telephone lines to the Cisco 6200 DSLAM at the CO CPE devices in the Cisco DSL product f
15. J20 located at the upper right corner of the rear panel are screw terminals for 48 VDC power input and return J17 is the 48V terminal for power circuit A J19 is the 48V return terminal for power circuit A J18 is the 48V terminal for power circuit B J20 is the 48V return terminal for power circuit B Power circuit A is connected to the power entry module PEM on the left as you face the front of the chassis power circuit B is connected to the PEM on the right Unused Connectors The Cisco 6200 backplane contains several connectors and a jumper that are not used in the current release See Appendix A Pin Assignments for a list of the unused items 1 2 3 Fan Tray A The fan tray located at the bottom of the chassis houses eight fans that maintain proper temperatures inside the chassis plus an air filter The filter should be removed and cleaned periodically Refer to Chapter 6 Preventive Maintenance for complete information on cleaning the air filter Caution The Cisco 6200 cooling fans must run continuously The system may suffer thermal damage if the fans stop for more than 10 minutes At ambient temperatures above 104 F 40 C thermal damage may occur sooner 1 2 4 Power Entry Modules PEMs 1 6 One or two PEMs distribute DC power to the chassis The Cisco 6200 needs only one active PEM to operate if two PEMs are installed the second PEM s power source serves as a hot backup t
16. amily include the Cisco 675 and the Cisco 605 The Cisco 6200 Manager is an SNMP based element management application that provides configuration monitoring and management support The Cisco 6200 Manager offers a graphical user interface and runs under Windows NT 4 0 and higher A separate console interface to the Cisco 6200 DSLAM provides command line access to all management services ADSL plain old telephone service POTS splitters or voice filters located both at the subscriber premises and at the CO support simultaneous voice and data transmission If a subscriber is using a telephone line for data only the POTS splitter connection is not required Cisco 6200 User Guide 1 1 1 Hardware Description 78 5296 02 10 02 98 The Cisco DSL family also includes a Frame Relay IDSL multiplexer a service selection gateway the Cisco 605 card the Cisco 6100 DSLAM and an ATM switch to aggregate Cisco 6200 traffic 1 2 Cisco 6200 Chassis This section describes the chassis that houses the Cisco 6200 DSLAM The Cisco 6200 consists of circuitry and connections that reside within a shelf or chassis that allows modular insertion and removal of the various field replaceable units FRUs The chassis consists of a module compartment a fan compartment a power module compartment a backplane and I O cabling Figure 1 1 shows the front of the chassis Figure 1 2 shows the back 1 2 1 Module Compartment The module compartment holds all
17. eam to the subscriber and upstream from the subscriber In Release 1 the trunk is a full duplex OC 3c fiber optic channel One OC 3c channel terminates at a single NTC The OC3 NTC is available in both single mode and multimode versions Multimode fiber is LED driven and is designed for distances up to 2 kilometers 1 2 miles Longer distances up to 15 kilometers or 9 2 miles require laser driven single mode fiber In the downstream direction the OC3 NTC accepts ATM cells at the OC 3c rate 155 52 Mbps and adapts these cells to the Cisco 6200 internal bus The OC3 NTC also transmits upstream data back to the service provider via ATM on the OC 3c physical layer The Cisco 6200 uses a fixed mapping of permanent virtual channels PVCs between trunk and subscriber ports This means that no configuration of these circuits is required Thirty one PVCs link each subscriber port to the trunk port on the NTC These subscriber traffic PVCs are assigned virtual channel identifiers VCIs 33 through 63 VCIs 0 through 31 are reserved for control traffic All of these VCs use virtual path identifier VPI 0 See the chapter Command Reference for instructions on using the command show dsl vemap to display the VCIs assigned to a particular slot or port The OC3 NTC collects ATM cell counts which are accessible through the 6200 Management Information Base MIB These cell count include Number of nonidle cells transmitted upstream Nu
18. he optic connector when the connector is not in use Never look into an optical cable or connector Reset Switch The reset switch is recessed behind the faceplate to avoid accidental disturbance It is not for customer use Figure 1 6 NTC OC 3 Faceplates E E NTC NTC OC3 SM POWER o READY Oy PRIME al sec oly To 2 A RD o D lt Card status LEDs gt lt OC 3c port gt Transmit and receive LEDs gt lt Reset switch gt LED Indicators Table 1 3 describes the LEDs on the faceplate of the OC 3 NTC OC3 MM POWER O READY O 4 PRIME alt sec D y E T Y A aD o 12689 Cisco 6200 User Guide 1 11 1 Hardware Description 78 5296 02 10 02 98 1 12 Table 1 3 LEDs on the NTC OC 3 LED Color Condition Indicated POWER Green The module is receiving power READY Green The NTC is experiencing no problems Yellow The NTC failed its power on self test it has a hardware problem Refer to Chapter 7 Troubleshooting Off The NTC is either initializing or in test mode PRIME Green This NTC is active and is using the primary bus SEC Green This NTC is active and is using the secondary bus Redundant systems only TD Green None of the fault conditions that cause the LED to turn yellow or turn off
19. his section describes the CAP and DMT versions of the subscriber line card SLC A Cisco 6200 chassis can hold up to 10 SLC modules Note All the SLCs in a Cisco 6200 chassis should be of the same type The mixture of CAP and DMT cards in a single chassis is not supported 1 5 1 What is the SLC 8CAP The CAP version of the SLC labeled SLC 8CAP is a hot swappable line module that provides data communication between the Cisco 6200 node and up to eight subscribers Modems on the CAP SLC use the carrierless amplitude modulation phase modulation CAP method a common line code method for asymmetric digital subscriber line ADSL transmissions As an ADSL device the CAP SLC transmits high speed data through an external plain old telephone service POTS splitter to subscribers over existing telephone grade segments of copper wire Figure 1 10 illustrates SLC operation The CAP SLC transports data at speeds up to 7 Mbps downstream from the service provider to the subscriber and receives up to 1 Mbps upstream from the subscriber to the service provider The SLC supports upstream and downstream passband channels for subscriber data Baseband POTS is unused by the SLC data is added to this channel by the external POTS splitter How the SLC Handles Traffic In the downstream direction the SLC receives ATM cells from the Cisco 6200 backplane bus The cell filter discards cells whose virtual path virtual channel IDs VPI VCIs do not pertain
20. ing The SLC has a hardware problem If the READY LED is off for an extended period when the POWER LED is on see the Cisco 6200 User Guide for instructions on troubleshooting the SLC PRIME Green The SLC is using the primary A bus to move information across the backplane SEC Green The SLC is using the secondary B bus to move information across the backplane Redundant systems only Ports 0 to 7 Green The following conditions exist The port is receiving good signal levels no loss of signal or LOS from the CPE The port has frame alignment with the far end CPE no loss of frame LOF or severely errored frames SEC The SLC has HEC alignment in the upstream direction The modems on both sides have negotiated the loop rates The port LEDs remain lit green in the presence of occasional minor alarms Flashing The port is enabled and is trying to communicate with the remote CPE That is the green port is training or preparing to train Off One of the following conditions exists The port is experiencing an intrusive DMT hardware test The port is disabled or is not configured Cisco 6200 User Guide 1 31 1 Hardware Description 78 5296 02 10 02 98 1 5 6 SLC 8DMT Specifications 1 32 Table 1 12 lists the physical and electrical specifications of the SLC 8DMT Table 1 12 SLC 8DMT Specifications Specification Description Subscriber ports 8 per card Transmission
21. is designed for DSL multiplexing At startup the MPC loads program software and configuration data from NVRAM from a server on the network or from a Flash card in one of its PCMCIA slots The MPC then provides boot images to the line cards After initializing the system the MPC provides monitoring and control services including the CLI available at the console and via Telnet SNMP communication with the Cisco 6200 Manager and critical major and minor alarm signals 1 4 2 Physical Description The MPC resides in slot 2 The MPC faceplate see Figure 1 9 includes the fixtures discussed in the following paragraphs Figure 1 9 MPC Faceplate g MPC D POWER D READY D ACTIVE ACO ALARMS Sera D cRIT DO MAJ OMIN lt Card status LEDs lt Alarm cut off switch lt Alarm LEDs lt Console port lt Two PCMCIA slots lt PCMCIA ejection buttons t lt Ethernet port lt Reset switch 11948 ACO Switch The alarm cut off ACO switch is a pushbutton located near the top of the MPC Press the switch to turn off an audible alarm For more information on alarms see the Alarm Relay Connection section on page 1 5 Cisco 6200 User Guide 1 19 1 Hardware Description 78 5296 02 10 02 98 Console Port The console port on the MPC is a serial E A TIA 232 port with an RJ 45 connector
22. ls PVCs between trunk and subscriber ports This means that no configuration of these circuits is required Thirty one PVCs link each subscriber port to the trunk port on the NTC These subscriber traffic PVCs are assigned virtual channel identifiers VCIs 33 through 63 VCIs 0 through 31 are reserved for control traffic All of these VCs use virtual path identifier VPI 0 See the Cisco 6200 User Guide for instructions on using the command show dsl vemap to display the VCIs assigned to a particular slot or port The NTC STM 1 collects ATM cell counts which are accessible through the 6200 Management Information Base MIB These cell count include Number of nonidle cells transmitted upstream Number of nonidle downstream cells received with good or correctable header checksums Number of downstream cells received with uncorrectable header checksums The NTC STM 1 provides bidirectional adaptation between serial ATM cells within the STM 1 fiber and the 16 bit parallel format on the backplane s 160 Mbps H bus Three basic circuits perform this adaptation process Optical interface Upstream data transfer Downstream data transfer Figure 1 7 shows how the three circuits interact Figure 1 7 NTC STM 1 Application NTC Cisco i 6200 AN 1 Downstream A data i yy f transfer rij N Optical A Cm en as a ay Line i i module Upstream data transfer G _ The optical interface
23. mber of nonidle downstream cells received with good or correctable header checksums Number of downstream cells received with uncorrectable header checksums The OC3 NTC provides bidirectional adaptation between serial ATM cells within the OC 3c fiber and the 16 bit parallel format on the backplane s 160 Mbps H bus Three basic circuits perform this adaptation process Optical interface Upstream data transfer Downstream data transfer Figure 1 5 shows how the three circuits interact Cisco 6200 User Guide 1 9 1 Hardware Description 78 5296 02 10 02 98 Figure 1 5 NTC OC 3 Application NTC Cisco i i 6200 lt D a Downstream data transfer Optical i 3 interface Upstream data pieren gt transfer y i SU lo Oa i Line i module 12688 The optical interface performs the optical to electrical and electrical to optical conversions Its other tasks include clock recovery overhead processing cell delineation and diagnostic information retrieval The upstream data transfer unit receives data via a 16 bit parallel input from the internal bus on the node s backplane ATM cells are received from an SLC channel only after that channel has won access to the upstream data bus from the other contending line channels The upstream data transfer unit monitors the contention bus to direct inbound data to the optical interface The dow
24. mitted power e Single mode 11 5 dBm e Multimode 17 dBm Average received power e Single mode 28 to 8 dBm e Multimode 30 to 14 dBm Transmission distances e Single mode up to 15 km 9 2 miles e Multimode up to 2 km 1 2 miles Wavelength both modes 1310 nm Level 2 protocol ATM Timing Loop timed Internal interface 16 bit parallel bus at 10 Mbps 160 Mbps total throughput Internal hardware e Motorola MC68360 0 5M of PROM e 4M of RAM e Odetics SDH interface Dimensions 1 5 x 15 75 x 9 75 in width x height x depth 3 8 x 40 0 x 24 8 cm Weight 2 Ib 0 9 kg Power consumption 26W 1 4 Management Processor Card MPC 1 4 1 1 18 The Cisco 6200 is controlled and managed by the MPC Functional Description The MPC performs management and storage tasks for the Cisco 6200 DSLAM The MPC provides The Cisco IOS command line interface CLI for configuration and monitoring An SNMP agent for communicating between the Cisco 6200 and the PC running the Cisco 6200 Manager software Alarm contacts and environmental monitoring of key system resources Line card configuration and fault polling Nonvolatile storage of configuration information Two PCMCIA Flash slots for storage of software images and configuration data Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 The MPC runs a version of Cisco IOS software that
25. nds this is the number of seconds in which at least one DMT layer CRC error loss of signal or severely errored frame is observed both upstream and downstream In addition the SLC 8DMT reports the following fault indications Far end LPR Near end LOS Near end LOF Near end loss of cell delineation LOCD 1 5 5 SLC 8DMT Physical Description Up to ten SLCs can be installed in a Cisco 6200 cabinet The slots assigned to the SLCs are slot 5 through slot 14 The card s faceplate is labeled SLC 8DMT The faceplate Figure 1 13 includes a reset switch and LED indicators Cisco 6200 User Guide 1 29 1 Hardware Description 78 5296 02 10 02 98 Figure 1 13 SLC 8DMT Faceplate S SLC 8DMT ea ten lt Card status LEDs seco oo a Port status LEDs 70 o lt Reset switch 13067 A Reset Switch The reset switch is recessed behind the faceplate to avoid accidental activation It is not for customer use LED Indicators Table 1 11 describes the LEDs on the faceplate of the SLC 1 30 Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 Table 1 11 SLC 8DMT LEDs LED Color Condition Indicated POWER Green The SLC is receiving power READY Green The SLC is experiencing no problems Yellow At least one port on the SLC is in line test mode Off The SLC is not communicating with the MPC This is the case when e The SLC is initializ
26. nstream data transfer unit inserts data onto the bus This circuit inserts idle cells when a full data cell is not yet ready for transmission 1 3 2 NTC OC 3 Physical Description The NTC resides in slot 1 the left most slot as you face the front of the chassis Each OC 3 NTC faceplate is marked NTC OC3 SM single mode or NTC OC3 MM multimode The faceplate see Figure 1 6 includes the fixtures discussed in the following paragraphs OC 3c Trunk Port The dual SC connectors one for transmitting one for receiving for the Cisco 6200 network trunk port are recessed into the OC 3 NTC faceplate to prevent the cables from protruding too far outside the faceplate Warning Class 1 laser product Warning Because invisible laser radiation may be emitted from the aperture of the port when no cable is connected avoid exposure to laser radiation and do not stare into open apertures 1 10 Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 The fiber optic communication channels in the single mode OC 3c card NTC OC3 SM operate with laser energy which can be harmful especially to the eyes During normal operation this energy is confined to the cable and presents no danger To avoid injury when you are connecting or disconnecting optical channels observe these precautions Always disconnect the card from the backplane before connecting or disconnecting optical cables Always keep the protective cap on t
27. o the first PEM s power source Each PEM is connected to a single DC power source For power redundancy two PEMs must be installed and two separate DC power sources must be connected to the chassis If one power source is connected only one PEM is required There is no benefit to connecting two power sources to a chassis with one PEM or to installing two PEMs in a chassis with one power source The PEMs reside at the top of the Cisco 6200 chassis and they are installed and accessed from the front DC power 48V enters the chassis through screw terminals on the rear panel of the chassis The PEMs receive power through the backplane and internal cabling The power bay on the left is wired to power circuit A the bay on the right is wired to power circuit B The circuits are identified at the power terminals on the backplane Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 The following fixtures are present on the front panel of each PEM A green LED that comes on to indicate that 48 VDC power is available to the chassis A circuit breaker Note To turn off a Cisco 6200 that has two PEMs you must flip the circuit breakers on both PEMs to OFF 0 1 2 5 Cooling Vents The cooling vents are located on the sides front and back of the Cisco 6200 chassis as shown in Figure 1 4 Air flows in at the bottom of the chassis and flows out at the top Do not obstruct the intake and exhaust vents in any
28. otocol ATM Timing Loop timed Internal interface 16 bit parallel bus at 10 Mbps 160 Mbps total throughput Internal hardware e Motorola MC68360 0 5M of PROM e 4M of RAM e Odetics SONET interface Dimensions 1 5 x 15 75 x 9 75 in width x height x depth 3 8 x 40 0 x 24 8 cm Weight 2 lb 0 9 kg Power consumption 26W 1 3 4 What is the NTC STM 1 The NTC STM 1 is a service interface module that concentrates the data traffic from all Cisco 6200 subscriber ports and connects the node to a single trunk line from the service providing ATM network This full duplex channel unit carries data both downstream to the subscriber and upstream from the subscriber The trunk is a full duplex STM 1 fiber optic channel One STM 1 channel terminates at a single NTC The NTC STM 1 is available in both single mode and multimode versions Multimode fiber is LED driven and is designed for distances up to 2 kilometers 1 2 miles Longer distances up to 15 kilometers or 9 2 miles require laser driven single mode fiber In the downstream direction the NTC STM 1 accepts ATM cells at the SDH rate 155 52 Mbps and adapts these cells to the Cisco 6200 internal bus Cisco 6200 User Guide 1 Hardware Description 78 5296 02 10 02 98 1 14 The NTC STM 1 also transmits upstream data back to the service provider via ATM on the STM 1 physical layer The Cisco 6200 uses a fixed mapping of permanent virtual channe
29. performs the optical to electrical and electrical to optical conversions Its other tasks include clock recovery cell delineation and diagnostic information retrieval Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 The upstream data transfer unit receives data via a 16 bit parallel input from the internal bus on the node s backplane ATM cells are received from a subscriber line card SLC channel only after that channel has won access to the upstream data bus from the other contending line channels The upstream data transfer unit monitors the contention bus to direct inbound data to the optical interface The downstream data transfer unit inserts data onto the bus This circuit inserts idle cells when a full data cell is not yet ready for transmission 1 3 5 NTC STM 1 Physical Description gt gt The NTC resides in slot 1 the left most slot as you face the front of the chassis Each NTC STM 1 faceplate is marked NTC STM1 SM single mode or NTC STM1 MM multimode The faceplates see Figure 1 8 include the fixtures discussed in the following paragraphs Trunk Port The dual SC connectors one for transmitting one for receiving for the Cisco 6200 network trunk port are recessed into the NTC faceplate to prevent the cables from protruding too far outside the faceplate Warning Class 1 laser product Warning Because invisible laser radiation may be emitted from the aperture of the port when no cable is
30. s or Telephone Lines On the inner surface of the backplane the upper and lower SLC connectors connect the SLC in the corresponding slot 5 to 14 with unshielded twisted pair UTP lines These lines connect to an external POTS splitter and from there to subscribers over telephone lines If a subscriber is using a telephone line for data only the POTS splitter is not required Ten factory installed dangler cables provide DSL subscriber connections Each dangler cable ends with a 50 pin female Champ Telco connector Figure 1 3 and each carries eight pairs to a single SLC module For a pinout list and an illustration showing the connectors on the rear panel see Appendix A Pin Assignments Figure 1 3 Telco Champ Connector 11963 Alarm Relay Connection Backplane connector J39 accessible from the rear of the chassis is the alarm relay connector The alarm relays provide relay contact closures The alarm relays transmit critical major and minor alarms to a separate external alarm device within the CO The alarm device uses a bell light or other signal to alert CO support personnel of the change in status The alarm relay transmits audible and visual alarms on separate circuits Alarms transmitted through J39 are also communicated by all of the following methods Alarm LEDs labeled Critical Major and Minor on the MPC Some alarms also affect the TD and RD LEDs on the NTC Event messages on
31. speeds Downstream up to 8 032 Mbps Upstream up to 864 kbps Loop hardware media Unshielded twisted pair copper wire Loop modulation method ADSL with DMT line code Layer 2 format ATM service and subscriber side end to end ATM virtual circuits supported Up to 31 per subscriber numbered 33 through 63 VPI 0 Data channel frequencies e Upstream 25 875 to 138 kHz Downstream 138 kHz to 1 104 MHz Internal hardware e Motorola MC68360 e 1 Mbyte Flash memory e 512 kbyte Flash boot memory e ADI DMT chip set e Cisco ATM framer Dimensions 1 17 x 15 75 x 9 75 in width x height x depth 3 0 x 40 0 x 24 8 cm Weight 3 Ib 1 36 kg Power consumption Cisco 6200 User Guide 79 2 W
32. ter Port 1 POTS P A Contention splitter and arbitration DMT transceiver pots CI ATM ntc LI splitter P y7 Port 2 T Cisco 6200 13068 The SLC 8DMT transports data at speeds up to 8 Mbps downstream from the service provider to the subscriber and receives at speeds up to 800 kbps upstream from the subscriber to the service provider The SLC supports upstream and downstream passband channels for subscriber data Baseband plain old telephone service POTS is unused by the SLC voice and data are added by the external POTS splitter How the SLC 8DMT Handles Traffic In the downstream direction the SLC receives ATM cells from the Cisco 6200 backplane bus The cell filter discards cells whose virtual path virtual channel IDs VPI VCIs do not pertain to a particular subscriber s channel Each port has a fixed set of 31 VCIs numbered 33 to 63 which are permanently assigned to VCIs on the NTC The cell filter buffers cells and the DMT transceiver transmits the outbound cells The SLC sends the cells out to an external POTS splitter which inserts baseband POTS traffic if any such traffic is provided before sending the downstream ADSL and POTS signals across standard unshielded twisted pair copper wire to the subscriber Cisco 6200 User Guide 1 2
33. to this subscriber s channel Each port has a fixed set of 31 VCIs which are permanently assigned to VCIs on the NTC The traffic controller buffers cells Then the CAP transceiver transmits the outbound cells The SLC sends the cells out to an external POTS splitter which inserts baseband POTS traffic if any such traffic is provided before sending the downstream ADSL and POTS signals across standard unshielded twisted pair copper wire to the subscriber In the upstream direction the SLC receives ADSL signals from a POTS splitter and demodulates the CAP modulated signal Then the SLC channel contends with the other SLC channels for the upstream data bus Two priority levels are available For the first Cisco 6200 release only UBR service is available The SLC will ensure fair access among all cells of the same priority The SLC separates the upstream and downstream data channels The upstream data channel occupies a band between 30 kHz and 200 kHz The downstream data channel takes the band between 240 kHz and 1 5 MHz At the subscriber site the DSL customer premises equipment the Cisco 675 for example demodulates the downstream signal and sends the data to the subscriber s PC Transmission Rates and Modem Training Two options are available with respect to transmission rates You can set the subscriber ports to rate adapt train automatically to the highest attainable line speed e You can set transmission speeds Ups
34. tream and downstream speeds can be set separately 1 22 Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 In the downstream direction 11 rates are available ranging from 640 kbps to 7 168 Mbps In the upstream direction 9 rates are available ranging from 91 kbps to 1 088 Mbps The modems on the CAP SLC train in sequence first downstream then upstream Each modem first acquires the line Then it tests the signal quality on the line by measuring the signal to noise ratio SNR It adds a preset margin 6 dbm to the SNR and compares the resulting value to a table If the value is acceptable the modem trains at the configured rate If not the modem repeats the process using the next lower transmission rate The modem keeps trying to train indefinitely until it is successful Statistics The SLC gathers signal quality statistics for network management purposes It sends this information to the management system via the master SNMP agent The SLC reports each of the following statistics to the management system for both upstream and downstream traffic Number of nonidle cells transmitted downstream Number of nonidle upstream cells received with valid header checksum Number of upstream cells received with invalid header checksum Number of errored seconds this is the number of seconds in which at least one header checksum error or loss of cell delineation is observed both upstream and downstream
35. ts of 32 kb 32 kbps 64 kbps 96 kbps 128 kbps and so on Rates available for upstream traffic start at 32 kbps and increase in 32 kb increments to a maximum upstream rate of 864 kbps The modems on the SLC 8DMT train simultaneously in the upstream and downstream directions Each modem first tries to train at the configured rate at a specified SNR margin If the first attempt fails in either direction but a CPE is detected the modem tries to train at the highest rate possible up to the configured rate The modem keeps trying to train until it is successful Statistics 1 28 The SLC 8DMT gathers signal quality statistics for network management purposes and sends this information to the management system via SNMP The SLC reports each of the following statistics to the management system for both upstream and downstream traffic Near and far end uncorrected blocks Near and far end corrected blocks Near and far end loss of signal LOS counter Near end loss of frame LOF counter Remote failure indication RFI or far end LOF Near and far end errored seconds Near and far end attenuation Near and far end SNR margin Upstream and downstream actual rates Number of nonidle cells transmitted downstream Number of nonidle upstream cells received with valid header checksum Cisco 6200 User Guide 78 5296 02 10 02 98 Hardware Description 1 Number of upstream cells received with invalid header checksum Number of errored seco
36. ubscriber ports 8 per card Transmission speeds Downstream up to 7 Mbps Upstream up to 1 Mbps Loop hardware media Unshielded twisted pair copper wire Loop modulation method ADSL with CAP line code Layer 2 format ATM service and subscriber side end to end ATM virtual circuits supported Up to 31 per subscriber numbered 33 through 63 VPI 0 Data channel frequencies e Upstream 30 to 200 kHz Downstream 240 kHz to 1 5 MHz Internal hardware e Motorola MC68360 e 1 Mbyte Flash memory e 512 kbyte Flash boot memory e Globespan CAP chip set e Cisco ATM framer Dimensions 1 17 x 15 75 x 9 75 in width x height x depth 3 0 x 40 0 x 24 8 cm Weight 3 Ib 1 36 kg Power consumption Cisco 6200 User Guide 12W 78 5296 02 10 02 98 Hardware Description 1 1 5 4 What is the SLC 8DMT The eight port DMT version of the SLC SLC 8DMT is a hot swappable line module that provides data communication between the Cisco 6200 node and up to eight subscribers Modems on the SLC 8DMT use discrete multitone DMT modulation a common method for encoding asymmetric digital subscriber line ADSL transmissions The SLC 8DMT transmits high speed data through an external POTS splitter to subscribers over existing telephone grade segments of copper wire Figure 1 12 illustrates SLC operation Figure 1 12 SLC 8DMT Operation Public telephone network 7 SLC Cell fil
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