Specifications

4-25
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 4 Card Reference
XCVT Cross-Connect Card
4.8.2 XCVT Hosting DS3XM-6
The XCVT card works with DS3XM-6 (transmux) cards. A single DS3XM-6 can demultiplex (map
down to a lower rate) six DS-3 signals into 168 VT1.5s that the XCVT card manages and cross connects.
XCVT cards host a maximum of 336 bidirectional VT1.5s. In most network configurations, two
DS3XM-6 cards are paired as working and protect cards.
4.8.3 XCVT Card-Level Indicators
The XCVT faceplate has two card-level LEDs.
VT14 Group7/VT2
VT15 Group1/VT3
VT16 Group2/VT3
VT17 Group3/VT3
VT18 Group4/VT3
VT19 Group5/VT3
VT20 Group6/VT3
VT21 Group7/VT3
VT22 Group1/VT4
VT23 Group2/VT4
VT24 Group3/VT4
VT25 Group4/VT4
VT26 Group5/VT4
VT27 Group6/VT4
VT28 Group7/VT4
Table 4-17 ONS 15454 VT Mapping (continued)
ONS 15454 VT Number Telcordia Group/VT Number
Table 4-18 XCVT Card-Level Indicators
Card-Level Indicators Definition
Red FAIL LED
The red FAIL LED indicates that the card’s processor is not ready. Replace
the card if the red FAIL LED persists.
ACT/STBY LED
Green (Active)
Amber (Standby)
The ACT/STBY (Active/Standby) LED indicates whether the XCVT is
active and carrying traffic (green) or in standby mode to the active XCVT
card (amber).