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Cisco Systems 8600 Series manual Line Module, ASI, 2T3

Models: 8600 Series

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LM-2T3 Module

Figure 5-5 Line Module, ASI, 2T3

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Service Interface (Line) Cards 5-9

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Cisco Systems 8600 Series manual Line Module, ASI, 2T3

Contents

Release May Cisco BPX 8600 Series ReferencePage Page Page Chapter Introduction About This ManualChapter General Description BPX Switch Common CoreChapter Network Interface Trunk Cards Chapter Service Interface Line CardsBXM T3/E3, 155, SimbaChapter ATM Connections Chapter ATM and Frame Relay SVCs SPVCs Chapter Tag SwitchingChapter BME Multicasting Chapter Repair and Replacement 11-1 Chapter Tiered Networks 13-1 Chapter Frame Relay to ATM Network Service Interworking 12-1Chapter BPX Snmp Agent 14-1 Appendix B BPX Switch Cabling Summary Appendix a BPX Node SpecificationsAppendix C BPX Switch Peripherals Appendix E Glossary Index Appendix D AT3-6ME Interface AdapterF I G U R E S Xviii Cisco BPX 8600 Series Reference List of Figures Dial-Modem Cabling for Auto Answer Dial-In to BPX T a B L E S Table B-1 Table A-1Table B-2 Table B-3Table C-2 Table C-1Table C-3 Table C-4Xxiv Cisco BPX 8600 Series Reference About This Manual Cisco WAN Switching Product Name ChangeObjectives AudienceOrganization Chapter Repair and Replacement Chapter Tag SwitchingChapter Frame Relay to ATM Network and Service Interworking Appendix a BPX Node SpecificationsConventions Related DocumentationRelated Documentation Conventions Xxx Cisco BPX 8600 Series Reference General Description IntroductionBPX Capabilities General Description BPX Switch General Configuration Example Extended Services ProcessorBPX Switch Continuing Features with ReleaseMGX IGX Switch New with ReleaseNetwork Continuing Features with ReleaseIMATM-B Access Products BPX Switch OperationBPX Switch Operation BPX Switch OperationTag Switching BPX Switch with MGX 8220 ShelvesBPX Switch with Extended Services Processor Frame Relay to ATM InterworkingFrame Relay to ATM Network Interworking Tiered Networks Service InterworkingAdditional Information Routing Hubs and Interface Shelves BPX Switch Routing Hubs Inverse Multiplexing ATM Tiered Network with BPX Switch and IGX Switch Routing HubsVirtual Trunking Example Virtual TrunkingFairShare Traffic and Congestion ManagementTraffic and Congestion Management AutoRoute OptiClassCost-Based AutoRoute Congestion Management, ForeSight Congestion Management, VS/VDNetwork Interfaces Network ManagementNetwork Management Statistical Alarms and Network Statistics Service InterfacesNode Synchronization Switch Software Description Switch Software DescriptionConnections and Connection Routing Connection Routing Groups Cost-Based Connection Routing Major Features of Cost-Based AutoRoute22Cisco BPX 8600 Series Reference Network Synchronization Cost-Based AutoRoute CommandsNetwork Synchronization Node Alarms Switch AvailabilitySwitch Availability Node RedundancySwitch Availability 26Cisco BPX 8600 Series Reference General Description BPX Switch EnclosurePhysical Description Physical Description BPX Switch Exterior Front ViewNode Cooling Node DC PoweringDC Power Entry Module Shown with Conduit Box Removed Optional AC Power Supply AssemblyAC Power Supply Assembly Front View Card Shelf ConfigurationBPX Switch Card Shelf Front View Physical Layer Functional DescriptionATM Layer Functional DescriptionATM Cell Format ATM Cell HeadersNNI Header Functional Description UNI HeaderFunctional Description STI Header STI HeaderATM Adaptation Layer ATM Cell AddressingAAL Smds11 SAR Adaptation Process IPX and IGX Switch Trunk Interfaces to ATMBAM STI FastPacket Adaptation to ATMCAM UNI SAM UNIComplex Gateway, Frame Relay to ATM Network Interworking Simple GatewaySimple and Complex Gateway Formats BPX Switch Major Groups BPX Switch Major GroupsBPX Switch Plug-In Card Summary Card Name Where Smfxlr BMELM-2OC3-SMF LM-2OC3-SMFLROptional Peripherals Optional PeripheralsBPX Switch Common Core Group BPX Switch Common CoreBroadband Controller Card BCC-32, BCC-3, BCC-4 Common Core Group Block DiagramBroadband Controller Card BCC-32, BCC-3, BCC-4 Features Functional Description BCC-32 and BCC-3 Block Diagram Indicator Function BCC Front Panel IndicatorsFront Panel Description LANBCC Front Panel CardBack Cards for the BCC-3 and BCC-32 Gbps Operation with the BCC-4Enter y StepConnector Function Backcard Line Module for BCC-32, ConnectorsEXT 2 TMG EXT 1 TMGBCC-3-bc or BCC-c Face Plate Connectors Alarm/Status Monitor Card Alarm/Status Monitor CardControls Indicator Function ASM Front Panel Controls and IndicatorsACO StatusLM-ASM Face Plate Connectors Line Module for the Alarm/Status Monitor CardConnector Indicator Function LMI-ASM Face Plate BPX Switch StrataBus 9.6 and 19.2 Gbps Backplanes BPX Switch StrataBus 9.6 and 19.2 Gbps Backplanes18Cisco BPX 8600 Series Reference BXM Cards, Trunk Mode Summary BPX Switch Network Interface GroupNetwork Interface Trunk Cards Broadband Network Interface Cards BNI-T3 and BNI-E3 Broadband Network Interface Cards BNI-T3 and BNI-E3Egress Ingress Simplified BNI-T3, BNI-E3 Block DiagramBandwidth Control Loopbacks and Diagnostics Front Panel IndicatorsBNI Front Panel Status Indicators Status LED color Status DescriptionStatus port T3 and E3 Line Modules LM-3T3 and LM-3E3 LM-3T3 and LM-3E3 ConnectorsPort 1 RX TX Port 2 RX TXLM-3T3 Face Plate, Typical T3 and E3 Line Modules LM-3T3 and LM-3E3LM-3E3 Face Plate, Typica Overview Broadband Network Interface Cards, BNI-155Egress IngressCBR VBR Simplified BNI-155 Block Diagram Act Stby Fail Failure Description 7BNI-155 Front Panel LM-OC3-MMF Connectors Function LM-OC3-SMF and LM-OC3-SMFLR Connectors FunctionOC3, Line Modules SMF, SMFLR, & MMF OC3, Line Modules SMF, SMFLR, & MMFLM-2OC3-SMF Face Plate LM-2OC3-MMF Face Plate Cabling of BNI Backcard, SMF-2-BC Cabling of BNI Backcard, SMF-2-BC20Cisco BPX 8600 Series Reference BPX Switch Service Interface Group Summary Service Interface Line CardsBXM Cards, Port UNI Mode Summary ASI-1, ATM Service Interface Card ASI-1, ATM Service Interface CardEgress Configuring Connections ATM over ASI Example Monitoring Statistics 6Cisco BPX 8600 Series Reference ASI-1 Front Panel LM-2T3 Module LM-2T3 ModuleLine Module, ASI, 2T3 LM-2E3 Module LM-2E3 ModuleLine Module, ASI, 2E3 ASI-155, ATM Service Interface Card ASI-155, ATM Service Interface CardConfiguring Connections ASI-155 Simplified Block Diagram Service Interface Line Cards ASI-155 Front Panel ASI-155 Line Module, LM-2OC3-SMF BXM Cards, Access UNI ModeASI-155 Line Module, LM-2OC3-SMFLR ASI-155 Line Module, LM-2OC3-MMFBXM Cards, Access UNI Mode BXM T3/E3, 155, Tag SwitchingBXM Cards Dynamic Resource Partitioning for SPVCsDynamic Resource Partitioning for SPVCs BXM Cards OC3/STM-1 155.52 Mbps T3/E3 45 Mbps/34MbpsOC12/STM-4 622.08 Mbps BPX-T3/E3-BCBXM Capabilities FeaturesT3/E3 45 Mbps/34 Mbps OC3/STM-1 155.520 MbpsBXM Capabilities ATM LayerCBR Service Service TypesVBR Service ABR ServiceBXM Front Panel Status Indicators BXM Front Card IndicatorsBXM Front Panel Card Failure indicators Card OperationCard BXM-155 Front Panel, Eight-Port Card Shown BXM-T3/E3 Front Panel, 12-Port Card Shown BXM-622 Backcards BXM, Backcard ConnectorsBXM-155 Backcards BXM-T3/E3 BackcardsSMF-622-2, SMFLR-622-2, and SMFXLR-622-2 Back Card BXM-155-8 Port Backcard, MMF, SMF, or Smflr BPX-T3/E3 Back Card, 12-Port Option Shown Y-Cabling of SMF-622 Series Backcards Cabling of SMF-622 Series BackcardsBXM Functional Description Overview, Port UNI ModeBXM Functional Description BXM Port Access UNI Ingress Operation 10 BXM Port Access, UNI Egress Operation BXM Trunk Ingress Operation Overview, Trunk ModeBXM Trunk Egress Operation DeMux/Mux Detailed Description, Port UNI and Trunk ModesACP Subsystem Processor Ingress and Egress Queue EnginesFault Management and Statistics, Port UNI Mode Fault Management and StatisticsAlarms Performance MonitoringFault Management and Statistics, Trunk Mode Technical Specifications Technical SpecificationsPhysical Layer General InformationGeneral Sonet Notes General Sonet NotesSonet Section, Line, and Path Descriptions Unit DescriptionDiagnostics User CommandsConnection Provisioning TestConfiguration Management Configuring ConnectionsConfiguring Connections SyntaxConfiguring Connections Field Value Description Command Line Interface Examples Command Line Interface ExamplesAn example of the addtrk command follows An example of the cnfln command follows An example of the cnfportq command follows An example of the upport command follows An example of the cnfcls command for class 2 follows YourID1 BPX Jan 1998 0241 GMT An example of the cnfabrparm command follows An example of the dsplns command follows 40Cisco BPX 8600 Series Reference Dynamic Resource Partitioning for SPVCs Resource PartitioningSummary Resource PartitioningASI SVC Resource Partitioning Shown in the following example Example ASI cnfportq Command BXM SVC Resource Partitioning Example BXM cnfport CommandNNI Trunk SVC Resource Partitioning TS,NTS,FR,FST,CBR,VBR,ABR BNI Trunk SVC Resource PartitioningBXM Trunk SVC Resource Partitioning Example BNI cnftrkparm CommandExample BXM cnftrk Command ATM Connections ATM Connection ServicesSVCs SVCsTraffic Parameters Traffic Management OverviewQoS Parameters Other AttributesVsvd Description Standard ABR notesBXM Connections ForeSight Congestion Control ATM Connection RequirementsATM Connection Requirements Connection Routing Addcon Command SyntaxField Value Description ATM Connection Configuration ATM Connection ConfigurationSCR Flow CLP0+1BXM T3/E3, OC3 Default Setting OC12 Range ASI T3/E3 Range ASI-155 RangeRIF ICRRDF Cdvt PCRVsvd SCRIBS CBR Policing Definitions ATM Forum TM Spec PCR Flow CBR ConnectionsVBR Connections VBR and Atfr ConnectionsAtfr Connections Atfr Connection Prompt Sequence ABR and Atfst Connections ABR NotesABR Connections ABR Standard Connection Prompt Sequence Meaning of Vsvd and Flow Control External Segments ABR ForeSight Connection Prompt Sequence Atfst ConnectionsAtfst Connection Prompt Sequence UBR Policing Definitions ATM Forum TM Spec PCR Flow UBR ConnectionsDual-Leaky Bucket An Analogy Traffic Policing ExamplesCBR Traffic Policing Examples Traffic Policing Examples11 CBR Connection, UPC Overview 12 CBR.1 Connection with Bucket Compliant LP=1VBR.1 VBR Dual-Leaky Bucket Policing Examples14 VBR Connection, UPC Overview Leaky Bucket 15 VBR Connection, Policing = 4, Leaky Bucket 1 Compliant ExamplesCLP=0 VBR.2 18 VBR.2 Connection, Leaky Bucket 2 Discarding CLP 0 Cells LP=0VBR.1 VBR.3 UBR Connection Policing ABR Connection Policing21 UBR Connection, UPC Overview Traffic Shaping for CBR, VBR, and UBR ConfigurationTraffic Shaping for CBR, VBR, and UBR Traffic Shaping Rates LMI and Ilmi ParametersATM and Frame Relay SVCs and SPVCs ATM and Frame Relay SVCs, and SPVCsPVCs PVCs and SVCsSPVCs ATM and Frame Relay SVCs and SPVCsSVCs Interim Inter-switch Protocol Routing BPX Switch and ESP InterfacesBPX Switch and ESP Interfaces UNI Signaling Channel Signaling PlaneSignaling Plane UNI Signaling Channels NNI Signaling ChannelNetwork Interworking Between Frame Relay and ATM Network Interworking Between Frame Relay and ATMExtended Services Processor Extended Services ProcessorESP Interfaces Redundant ESPs Stand-Alone ESPESP Y-Cable Redundancy Cable RedundancyOther Redundancy Options Resource Partitioning Introduction Tag SwitchingTag Switching Overview Tag Switching BenefitsTag Switching Benefits Tag Switching Operation at Layer Elements in a Tag Switching NetworkElements in a Tag Switching Network ForwardingTag Switching in an ATM WAN Tag Switching in an ATM WANControl Tag Forwarding Information Base Tfib in an ATM Environment Downstream on Demand Tag Allocation, Conservative Mode Shown Tag Switching and the BPX Tag Switching and the BPXBPX Tag Switching BPX Switch VSI Interfaces Virtual Switch InterfacesConnection Setup, End Points on same VSI Slave Tag Switching Resource Configuration Parameters Tag Switching Resource Configuration ParametersConfiguring VSI Lcns Useful Default Allocations Port VSI Partition LCN Allocation Elements Details of More Rigorous AllocationsList of Terms RequirementsRequirements Related Documents Configuration ManagementRelated Documents Cnfqbin Command Configuration CriteriaCnfrsrc Command Configuration CriteriaExample Parameter cnfrsrc Value Description Cnfrsrc Parameter SummaryResetcd 4 h Configuration ExampleConfiguration Example DspcdsStatus Active Revision CD18 Uptrk 4.1 uptrk 4.2 uptrk Max PVC bandwidth Partition Enabled e VSI min LCNsCnfrsrc VSI start VPI VSI end VPI VSI min b/w VSI max b/w22Cisco BPX 8600 Series Reference Dspqbin 4.1 Cnfqbin 4.1 Enable/disable eCnfqbin 4.1 10 e 0 65536 95 100 Addshelf 4.1 vsi 1 Checking and Troubleshooting Checking and TroubleshootingTsc# show controllers VSI descriptor Dspnode DsptrksDsprsrc 4.1 Tsc# reload Tsc# show tag intTsc# sho tag tdp disc Statistics Provisioning and Managing ConnectionsProvisioning and Managing Connections BPX Switch Commands Command ReferenceTSC Commands Command ReferenceAddshelf Related CommandsSyntax AttributesExample for Tag Switching Description for Tag SwitchingExample for Interface Shelves Description for Interface ShelvesAddshelf 11.1 a BPX switch Related Commands dspqbin Parameters-cnfqbinCnfqbin ExampleCnfqbin 4.1 10 e 0 65536 95 100 DescriptionCnfrsrc Related Commands Parameters-cnfrsrcParameter cnfrsrc Description Cnfrsrc Parameter cnfrsrc Description Here, ax = 256, n1x = 512, and m1x = 10 Port VSI Partition LCN Allocation Elements Example 1, 8-Port OC3 BXM Configured in Trunk Mode Cnfrsrc Port VSI Partition = Total Lcns available toPort N1x Unallocated Min z1 + n1x, max M1x LCNs Example 2, 8-Port OC3 BXM Configured in Port Mode 44Cisco BPX 8600 Series Reference 120 3000 3500 4907 7588 100 Dspcd IPX switch, IGX switch, BPX switchParameters-dspcd DspcdParameters-dspcds DspcdsSyntax dspcds l Example dspcds DspcdsKDJ Dspnode BPX switch, IGX switch YesDspnode 50Cisco BPX 8600 Series Reference Dspqbin Related Commands cnfqbin Parameters-dspqbinExample dspqbin 4.1 DspqbinExample dspqbin 4.1 10 Sample Display Dsprsrc Related Commands cnfrsrc Parameters-dspcdsExample dsprsrc 4.1 DsprsrcDsptrks DsptrksExample Example resetcd 5 H ResetcdYes IPX switch, IGX switch, BPX switch ResetcdUpport Yes BPX switchExample upport UpportSystem Response Parameters-uptrk UptrkOptional Parameters-uptrk Example uptrkUptrk BME Multicasting Standards BME FeaturesMulticasting Benefits Multicasting OverviewConnection Management with Cisco StrataView Plus Connection Management CriteriaBME Restrictions Address CriteriaBME Cell Replication BME OperationBME Operation Cell Replication Stats Group Action CommandAdding Connections GroupMulticast Statistics Multi-Segment Multicast ConnectionsAlarms AlarmsPolicing OAM cellsHot Standby Backup Hot Standby BackupAIS cells Connection Diagnostics ConfigurationConfiguration Configuration Management Preventive Maintenance Repair and ReplacementTroubleshooting the BPX Switch General Troubleshooting ProceduresTroubleshooting the BPX Switch Symptom Probable Cause Remedy Troubleshooting the BPX SwitchSymptom Probable Cause Remedy Displaying the Status of Cards in the Node Card Status for the BPX SwitchCard Type Status Description BCCReplacing Parts Replacing PartsReplacing a Front Card Top of the grille should pop out Replacing Parts StepUnlatching the Air Intake Grille Replacing a Line Module11-8Cisco BPX 8600 Series Reference Removing a Line Module Replacing a DC Power Entry ModuleDC Power Entry Module with Conduit Box AC Power Supply Assembly Replacing an AC Power SupplyRemoving Blank Filler Panel B side shown Field-Installing a Second AC Power SupplyReplacing the Fan Assembly Replacing Card Slot and Fan Fuses on the System Backplane Replacing the Temperature Sensing UnitCard Slot and Fan Fuse Locations on System Backplane 11-16Cisco BPX 8600 Series Reference Frame Relay to ATM Network and Service Interworking Frame Relay to ATM Network and Service Interworking12-2Cisco BPX 8600 Series Reference Service Interworking Networking Interworking Networking InterworkingMUX FRP BUS AIT BNI ATF Connections, Simplified Example ATM Protocol Stack ATM Protocol StackATM Layers AIT/BTM Interworking and the ATM Protocol Stack AIT/BTM Interworking and the ATM Protocol StackProtocol Stack Operation AIT/BTM Control Mapping, Frames and Cells Management, OAM Cells FeaturesATF Summary LimitationsConnection Management Some ATF Connection CriteriaPort Management Addcon Cnfcls Cnfcon Delcon Dspcls Dspcon DspconsStructure Channel StatisticsCnfport Cnfportq Clrchstats Cnfchstats Dspchstats Dspchstatcnf DspchstathistOAM Cell Support DiagnosticsDspalms Dspcon Dspport Tstconseg Tstdly User Commands Virtual Circuit FeaturesManagement AUser CommandsManagement Bandwidth Management RoutingUser Interface Alarms SignalingRouting Hubs and Interface Shelves Tiered NetworksBPX and IGX Routing Hubs Tiered Network with BPX and IGX Routing Hubs Routing Hubs and Interface ShelvesTiered Network Implementation BPX Routing Hubs in a Tiered NetworkBPX Routing Hubs in a Tiered Network General UpgradesDefinitions Network Management Co-locating Routing Hubs and Interface ShelvesForeSight IPX Interface Shelf DescriptionPreferred Routing Local and Remote LoopbacksAlarm Management of Interface Shelf on the BPX Hub Node Configuration and ManagementInterface Shelf Management Port Management Alarm Management on the IPX Interface ShelfConnection Management Bandwidth ManagementIGX Routing Hubs in a Tiered Network IGX Routing Hubs in a Tiered NetworkIGX Shelves and Routing Hubs, Frame Relay Connections General Co-locating Routing Hubs and Shelves IGX Interface Shelf Description Shelf Management Alarm Management of Interface Shelf on the IGX Hub Node User Interface CommandsAlarm Management on the IGX Interface Shelf ShelfData Channel Commands Data Connection CommandsVoice Connection Commands Voice Channel CommandsCisco StrataView Plus NMS Cisco StrataView Plus NMS13-18Cisco BPX 8600 Series Reference Snmp Overview BPX Snmp AgentSnmp Overview 1shows an Snmp manager and the nodes within a domainSnmp Functions Snmp FunctionsATM Set Requests Responses to Get Get-Next RequestsResponses to Set Requests MIB II SupportMIB II Support Switch Service Objects Cisco WAN Switching Proprietary MIB StructureSwitch Connections Cisco WAN Switching Proprietary MIB StructureEndpoint Statistics Bandwidth ClassEndpoint Mapping 14-8Cisco BPX 8600 Series Reference General BPX Node SpecificationsGeneral ATM Trunk Interface BXM-T3/E3 Cards Characteristic T3 DS3ATM Trunk Interface BXM-155 Cards ATM Trunk Interface BXM-T3/E3 CardsATM Trunk Interface BXM-155 Cards SMF LR ~40 KMATM Trunk Interface BXM-622 Cards ATM Trunk Interface BXM-622 CardsSMF IR TX SMF IR RX SMF LR TX SMF LR RX ATM T3 Trunk Interface BNI-T3, LM-3T3 ATM T3 Trunk Interface BNI-T3, LM-3T3ATM E3 Trunk Interface BNI-E3, LM-3E3 ATM E3 Trunk Interface BNI-E3, LM-3E3ATM OC3 Trunk Interface BNI-OC3, LM-OC3 ATM OC3 Trunk Interface BNI-OC3, LM-OC3ATM Service Interface BXM-155 Cards ATM Service Interface BXM-T3/E3 CardsATM Service Interface BXM-622 Cards ATM Service Interface BXM-T3/E3 CardsATM Service Interface ASI-1, LM-2E3 ATM Service Interface ASI-1, LM-2T3ATM Service Interface ASI-1, LM-2T3 ATM Service Interface ASI-2, LM-OC3 ATM Service Interface ASI-2, LM-OC312Cisco BPX 8600 Series Reference Power Cabling BPX Switch Cabling SummaryAC Powered Nodes Trunk CablingTable B-3 DC Power Wiring Cable Parameter Description DC Powered NodesLM-BCC Cabling Auxiliary and Control Port CablingModem Cabling LAN Port CablingTable B-6 LAN Port Cabling Cable Parameter Description Table B-7 LAN Port Pin Assignments Pin # NameT1 Clock Cabling External Clock Input CablingLM-BCC Cabling Table B-12through Table B-15lists E1 clock cabling details E1 Clock CablingStandard BPX Switch Cables External Alarm CablingExternal Alarm Cabling Table B-17 Network Alarm Pin Assignments DescriptionTable B-19 Redundancy Y-Cables Used On Cisco P/N Redundancy Y CableLM-BCC TBS Redundancy Y Cable Cisco StrataView Plus Terminal Control Port, Local Control BPX Switch PeripheralsTable C-3 Switch a Settings-Okidata 184 Printer Description DIP Switch Settings for OkidataPrinter Table C-5 Switch 2 Settings-Okidata 184 Printer Description Table C-4 Switch 1 Settings-Okidata 184 Printer DescriptionPrinter BPX Switch Auto-Answer Dial-In to BPX switch Motorola V.34R BPX Switch Dial-In ConfigurationModems, Dial-In and Dial-Out Modems, Dial-In and Dial-OutATSØ=1 ATL1AT\N3 AT%CIPX Auto-Dial to Customer Service AT\Q1 AT\JAT\T3 8Cisco BPX 8600 Series Reference Application AT3-6ME Interface AdapterEquipment Description Interface ConnectorsEquipment Description T3 RX BNC Table D-1 Rear Panel Connectors Type DescriptionT3 TX BNC DB9Table D-2 Front Panel Indicators Color Description DIP SwitchesFT2 FT2 Front and Rear PanelAT3-6ME Configuration InstallationInstallation Table D-3 DIP Switch SW-1 Selection Guide Position FunctionPower-Up Sequence BPX, IGX, or IPX Port ConfigurationOperation Remote Loop Operation Normal OperationTerminal Operation OperationTable D-6 DIP Switch Settings CommandsTable D-7 Command Summary Parameters Meaning Specifications Table D-8 Status Display SpecificationsT3 interface BPV NNNSpecifications PowerT2 Interface Mechanical12Cisco BPX 8600 Series Reference Glossary ARI Alarm Relay Interface Card ARC Alarm Relay CardARM Alarm Relay Module ASM Alarm/Status Monitor CardsBandwidth reservation B8ZS Bipolar with Eight Zero SuppressionChannel BC-E1 Backcard E1CAS Channel Associated Signalling BPX SwitchCcdv Compliant Cell Delay Variation CCS Common Channel SignallingCell CGA Carrier Group AlarmCell relay Circuit lineCrosspoint switch COS Class of ServiceCSU Channel Service Unit Dacs Digital Access and Control SystemDial Access Switching DDS Digital Data ServiceDS0 Digital Signal DS1 Digital SignalDTE Data Terminal Equipment DSI Digital Speech InterpolationECN Explicit Congestion Notification Fast EIAFrame forwarding Frame Relay ServiceFPC FastPAD Back Card Frame relay connection classFTC FastPAD Trunk Card IGX SwitchFTM FastPAD Trunk Module GatewayIsdn Integrated Services Digital Network IPX SwitchJunction node Junction trunkMajor alarm Local alarmMinor alarm Local addressingNPC Network Processor Card Packet switchingNPM Network Processor Module NrmPBX private branch exchange Partially-interleaved EIAPCM Pulse Code Modulation PCR Peak Cell RateRemote alarm Red alarmRobbed bit signaling 921/Q.931RS-449 SAR Segmentation and ReassemblySCC System Clock Card SCM System Clock ModuleSpeech detection SVC switched virtual circuitSplit clock Status EnquiryTrm TimestampTrunk Trunk conditioningVAD Voice Activity Detection Voice Network SwitchingVBR Variable Bit Rate Virtual circuitCables Yellow alarmCable redundancy Adtf ABR STDASI ATMESP DlciFbtc FRF.4 FrttSAM PnniSnmp SpvcTSR TftpVCI VPIStrongly agree Strongly disagree Documentation Response CardBusiness Reply Mail