4-10
Cisco ONS 15454 Reference Manual, R7.0.1
OL-9217-01
Chapter 4 Optical Cards
4.4 4.4.1 OC12 IR/STM4 SH 1310 Card-Level Indicators
Figure 4-3 OC12 IR/STM4 SH 1310 Faceplate and Block Diagram
You can install the OC12 IR/STM4 SH 1310 card in Slots 1 to 6 and 12 to 17, and provision the card as
a drop card or span card in a two-fiber BLSR, path protection, or ADM (linear) configuration.
The OC12 IR/STM4 SH 1310 card interface features a 1310-nm laser and contains a transmit and receive
connector (labeled) on the card faceplate. The OC12 IR/STM4 SH 1310 card uses SC optical
connections and supports 1+1 unidirectional and bidirectional protection.
The OC12 IR/STM4 SH 1310 detects LOS, LOF, LOP, AIS-L, and RDI-L conditions. Refer to the
Cisco ONS 15454 Troubleshooting Guide for a description of these conditions. The card also counts
section and line BIT errors.
To enable APS, the OC12 IR/STM4 SH 1310 card extracts the K1 and K2 bytes from the SONET
overhead to perform appropriate protection switches. The DCC/GCC bytes are forwarded to the
TCC2/TCC2P card, which terminates the DCC/GCC.
4.4.1 OC12 IR/STM4 SH 1310 Card-Level Indicators
Table 4-5 describes the three card-level LEDs on the OC12 IR/STM4 SH 1310 card.
uP bus
uP
Flash
RAM
STS-12
Mux/
Demux
Optical
Transceiver
OC-12
Main SCI
Protect SCI
BTC
ASIC
STS-12
B
a
c
k
p
l
a
n
e
61353
FAIL
ACT
SF
OC12IR
STM4SH
1310
1
33678 12931
Tx
Rx
To Next Page
Loading...
