Specifications

4-21
Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 4 Card Reference
XC Cross-Connect Card
Figure 4-6 XC cross-connect matrix
The XC card has 12 input ports and 12 output ports. Four input and output ports operate at either STS-12
or STS-48 rates. The remaining eight input and output ports operate at the STS-12 rate. An STS-1 on
any of the input ports can be mapped to an STS-1 output port, thus providing full STS-1 time slot
assignments (TSA).
The XC card works with the TCC+ card to maintain connections and set up cross-connects within the
ONS 15454. Either the XC, XCVT, or XC10G is required to operate the ONS 15454. You establish
cross-connect and provisioning information through CTC. The TCC+ establishes the proper internal
cross-connect information and relays the setup information to the cross-connect card.
Caution Do not operate the ONS 15454 with a single TCC+ card or a single XC/XCVT/XC10G card installed.
Always operate the shelf with one working and one protect card of each type.
For simplex operation, you can install a single XC card in Slots 8 or 10. A second XC should be added
for redundancy. The card has no external interfaces. All cross-connect card interfaces are provided
through the ONS 15454 backplane.
4.7.1 XC Card-Level Indicators
The XC card faceplate has two card-level LEDs.
8 x
288x288 STS-1 Level
STS-12
8 x
STS-12
4 x STS-
12/48
4 x STS-
12/48
32507
Table 4-16 XC Card-Level Indicators
Card-Level Indicators Definition
Red FAIL LED
The red FAIL LED indicates that the card’s processor is not ready. If the
FAIL LED persists, replace the card.
ACT/STBY LED
Green (Active)
Amber (Standby)
The ACT/STBY LED indicates whether the XC card is active and carrying
traffic (green) or in standby mode as a protect card (amber).