Cisco Systems IGX 8400 manual Y1 Interface Back Card BC-Y1

Page 44

Network Trunk Module

Table 4-20

Data and Control Leads Supported with BC-SR

 

 

 

 

 

 

 

Transmit

 

 

Receive

 

 

 

 

 

 

 

 

 

Lead

Name

 

Interface

Lead

Name

Interface

 

 

 

 

 

 

TX

Transmit data

All

RX

Receive data

All

 

 

 

 

 

 

RTS

Request to Send

V.35

CTS

Clear to Send

V.35

 

 

 

 

 

 

DTR/C

Data Terminal Ready

All

DSR/I

Data Set Ready

All

 

 

 

 

 

 

LL

Local Loop

EIA/TIA-422

DCD

Data carrier select

V.35

 

 

 

 

 

 

RL

Remote Loop

EIA/TIA-422

RI/IC

Ring Incoming Call

V.35

 

 

 

 

 

 

IS

Terminal In Service

EIA/TIA-422

TM

Test mode

V.35

 

 

 

 

 

 

SS

Select standby

V.35

SB

Standby indicator

 

 

 

 

 

 

 

SF

Sig rate select

 

SI

Signalling rate

 

 

 

 

 

 

 

 

Y1 Interface Back Card (BC-Y1)

The BC-Y1 back card provides a Japanese Y1 trunk interface for an NTM. The BC-Y1 can reside in any rear slot 3 through 8 in an Cisco IGX 8410, 3 through 16 in an Cisco IGX 8420, or 3 through

32 in an Cisco IGX 8430. The BC-Y1 provides:

An interface to Japanese “Y” Trunk (Y1) lines

Support for Y1 trunk formatted signaling

Support for 24-channel, 1.544 Mbps operation

Support for fractional rates

Coded Mark Inversion (CMI) line coding

Statistics for Y1 line events (such as loss of framing, loss of signal, and framing errors.)

Support for local and remote loopback at the Y1 interface and the local bus interface for fault isolation

The BC-Y1 supports two clock modes. These are normal clocking and loop timing. The system operator selects the mode through software control. Normal clocking uses the receive clock from the network for incoming data and supplies the transmit clock for outgoing data. This clock can be used to synchronize the node.

Loop timing uses the receive clock from the network for the incoming data and turns the receive clock around for timing the transmit data.

Figure 4-26and Table 4-21provide descriptions of the BC-Y1 status LEDs and connections on the faceplate. When you correlate the items in the figure and table, read from the top to the bottom.

4-44Cisco IGX 8400 Series Reference

Image 44
Contents Trunk Cards Trunk Interface Cards Trunk Front Cards Card Acronym Card NameLoopback Test Trunk Card MaintenanceTrunk Operating Modes Introduction to the UXM-E Trunk Mode Universal Switching Module EnhancedDetermining the UXM-E’s Mode of Operation Example Networks with UXM-EsUXM-E Trunk Features UXM-Es in a Network with Heterogeneous TrafficCard Name Card Description UXM-E InterfacesBack Cards for the UXM-E UXM-E Front Card Switchover to a Redundant UXM-E Maximum Number of UXM-EsCabled UXM-E Redundancy UXM-E Status LEDs Fail Active Standby Status of CardUXM-E as a Clock Source Cellbus Bandwidth UsageCard Mismatch Planning for Cellbus Bandwidth Allocation OC3Calculating Cellbus Bandwidth Changes ATM Across a Public ATM NetworkUXM-E in Trunk Mode Routing over Cell Trunks OnlyTypes of Supported Traffic Traffic from FastPacket-Based Cards Traffic TypeTypes of Connections on a UXM-E Trunk Inverse Multiplexing over ATM on IGX TrunksAdding an IGX Feeder Adding and Removing IMA Group Links Line RedundancyIMA Protocol Two-Segment ConnectionsRouting Feeder Connection Cell Endpoint a Endpoint B Type Gateway Type Routing Load TypeThree-Segment Connections Feeder Connection Cell Endpoint a Endpoint B TypeRT-VBR Gwtypenone ABR.FST GwtypenoneOC3 STM1 SMF Activation and Configuration of a UXM-E in Trunk ModeUXM-E Atfr 20Cisco IGX 8400 Series Reference Alarms for Physical Lines and Logical Trunks SCR and PCR Policing at Less than 50 CPS on UXM-EBXM IGX-UXM-ETrunk Statistics for Troubleshooting 10 PCR Policing Application ExampleSummary Statistics UXM-E Interface CardsOC-3/STM1 Back Cards Connectors and LEDs for SMF and MMF Back CardsConnector/Indicator Function 11 BC-UAI-4-155-SMF Faceplate T3 Back Cards 12 BC-UAI-2-155-SMF FaceplateBC-UAI-6-T3 Faceplate Connectors and LEDs for BC-UAI-6-T3 and BC-UAI-3-T3Connectors/Indicator Function E3 Back Cards 14 BC-UAI-3-T3 FaceplateConnectors and LEDs for BC-UAI-6-E3 and BC-UAI-3-E3 BC-UAI-6-E3 FaceplateT1 Back Cards 16 BC-UAI-3-E3 FaceplateBC-UAI-8-T1-DB-15 Faceplate E1 Back Cards 18 BC-UAI-4-T1-DB-15 FaceplateBC-UAI-8-E1 DB-15 Faceplate Port 21 BC-UAI-4-E1 DB-15 Faceplate 22 BC-UAI-4-E1 BNC Faceplate Network Trunk Module Cable Redundancy for the NTMNTM Status T1 Interface Card BC-T1 BC-T1 Faceplate Description23 BC-T1 Faceplate BC-T1 Connections and Status LEDsE1 Interface Back Card BC-E1 BC-E1 Connections and Status LEDs RX-TXSubrate Interface Card BC-SR Connection/Indicator Function BC-SR Connections and Status LEDsY1 Interface Back Card BC-Y1 TX MON BC-Y1 Connections and Status LEDsRX MON 46Cisco IGX 8400 Series Reference