Cisco ONS 15454 SDH Specifications Page 140

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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
E3-12 Card
Figure 3-11 E3-12 faceplate
You can install the E3-12 card in any multispeed or high-speed card slot on the ONS 15454 SDH. Each
E3-12 port features ITU-T G.703 compliant level outputs supporting cable losses of up to 12 dB at 17184
kHz. The E3-12 card supports 1:1 protection.
Note The lowest level cross-connect is STM-1. Lower level signals, such as E-1, DS-3, or E-3, can be
dropped. This may leave part of the bandwidth unused.
Note When a protection switch moves traffic from the E3-12 working/active card to the E3-12
protect/standby card, ports on the now active/standby card cannot be taken out of service. Lost traffic
can result if you take a port out of service even if the E3-12 active/standby card no longer carries
traffic.
3.9.1 E3-12 Card-Level Indicators
The E3-12 card faceplate has three LEDs.
FAIL
ACT/STBY
SF
E3
12
33678 12931
63105
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