Specifications
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Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 4 Card Reference
XCVT Cross-Connect Card
4.8.4 XC/XCVT Compatibility
The XCVT card is compatible with the XC cards. The XCVT supports run-time compatibility with the
XC cross-connect both within a single node and within a ring of mixed XCVT and XC nodes. However,
working and protect cards within a single ONS 15454 must be either two XC cards or two XCVT cards.
If an XC card or an XCVT card are used together as a working and protect pair, the XCVT acts as an XC
card.
The XC and XCVT are supported in unidirectional path switched ring (UPSR) and bidirectional line
switched ring (BLSR) configurations. VT and STS-level cross-connect and protection management are
also supported in either type of ring. Nodes that rearrange or drop VTs must use an XCVT. Nodes that
only rearrange or drop STSs can use an XC. You do not need to upgrade STS-only nodes to XCVT in a
ring that can handle both VT and STS drop/rearrangement. In this scenario, however, the XC must run
Software R2.0 or higher.
When upgrading from XC to XCVT cards, the first XCVT card installed acts as an XC card until the
second XCVT card is installed. For more information, see Chapter 3, “Maintenance.”
To create an STS-capable ring that allows VT drops at some nodes, all of the nodes in the ring must first
run Software R2.0 or higher. The nodes that allow VT drops must use XCVT, but the nodes that do not
allow VT drops can use the XC or XCVT card.
4.8.5 XCVT Card Specifications
• Environmental
–
Operating Temperature:
C-Temp (15454-XC-VT): 0 to +55 degrees Celsius
I-Temp (15454-XC-VT-T): -40 to +65 degrees Celsius
Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card
without this symbol is C-Temp compliant.
–
Operating Humidity: 5 - 95%, non-condensing
–
Power Consumption: 34.40 W, 0.72 amps, 117.46 BTU/Hr.
• Dimensions
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Height: 12.650 in.
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Width: 0.716 in.
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Depth: 9.000 in.
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Card Weight: 1.9 lbs, 0.8 kg
• Compliance
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ONS 15454 cards, when installed in a system, comply with these standards: Safety: UL 1950,
CSA C22.2 No. 950, EN 60950, IEC 60950