Cisco Systems 15454 7.2.1 Standard BNC Protection, 7.2.2 High-Density BNC Protection

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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 7 Card Protection
7.2 7.2.1 Standard BNC Protection
Figure 7-7 shows 1:1 high-density card protection by EIA type.
Figure 7-7 1:1 Protection Schemes for High-Density Electrical Cards with UBIC or MiniBNC EIA
Typ e s
7.2.1 Standard BNC Protection
When used with the standard BNC EIA, the ONS 15454 supports unprotected, 1:1, or 1:N (N < 2)
electrical card protection for DS-3 and EC-1 signals, as outlined in Table 7-1 on page 7-3 and Table 7-1
on page 7-3. The standard BNC EIA panel provides 48 BNC connectors for terminating up to 24 transmit
and 24 receive signals per EIA panel, enabling 96 BNC connectors for terminating up to 48 transmit and
receive signals per shelf with two standard-BNC panels installed. With an A-Side standard BNC EIA,
Slots 2 and 4 can be used for working slots and with a B-Side EIA, Slots 14 and 16 can be used for
working slots. Each of these slots is mapped to 24 BNC connectors on the EIA to support up to 12
transmit/receive signals. These slots can be used with or without equipment protection for DS-3 and
EC-1 services.
7.2.2 High-Density BNC Protection
When used with the high-density BNC EIA, the ONS 15454 supports unprotected, 1:1, or 1:N (N < 4)
electrical card protection for DS-3 and EC-1 signals, as outlined in Table 7-1 on page 7-3 and Table 7-1
on page 7-3. The high-density BNC EIA panel provides 96 BNC connectors for terminating up to
48 transmit and 24 receive signals per EIA panel, enabling 192 BNC connectors for terminating up to
96 transmit and receive signals per shelf with two high-density BNC panels installed. With an A-Side
high-density BNC EIA, Slots 1, 2, 4, and 5 can be used for working slots and with a B-Side EIA,
Slots 13, 14, 16, and 17 can be used for working slots. Each of these slots is mapped to 24 BNC
connectors on the EIA to support up to 12 transmit/receive signals. These slots can be used with or
without equipment protection for DS-3 and EC-1 services.
TCC Cross-connect AIC Cross-connect TCC
UBIC/MiniBNC
124964
Working Working Working Protect Protect Working