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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 2 Common Control Cards
2.3.3 Network-Level Indicators
2.3.3 Network-Level Indicators
Table 2-10 describes the six network-level LEDs on the TCC2P faceplate.
2.4 XC10G Card
The XC10G card cross connects STM-1, STM-4, STM-16, and STM-64 signal rates. The XC10G card
provides a maximum of 384 x 384 VC-4 nonblocking cross connections. Any STM-1 on any port can be
connected to any other port, meaning that the STM cross-connections are nonblocking.
The lowest level cross-connect with the XC10G card is STM-1. Lower level signals, such as E-1, DS-3,
or E-3, can be dropped, which can leave part of the bandwidth unused.
Note The XC10G card has been designed to support both –48 VDC and –60 VDC input requirements.
Table 2-10 TCC2P Network-Level Indicators
System-Level LEDs Definition
Red CRIT LED Indicates critical alarms in the network at the local terminal.
Red MAJ LED Indicates major alarms in the network at the local terminal.
Amber MIN LED Indicates minor alarms in the network at the local terminal.
Red REM LED Provides first-level alarm isolation. The remote (REM) LED turns red when
an alarm is present in one or more of the remote terminals.
Green SYNC LED Indicates that node timing is synchronized to an external reference.
Green ACO LED After pressing the ACO button, the ACO LED turns green. The ACO button
opens the audible alarm closure on the backplane. ACO is stopped if a new
alarm occurs. After the originating alarm is cleared, the ACO LED and
audible alarm control are reset.