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Cisco ONS 15454 Reference Manual, R7.0.1
OL-9217-01
Chapter 4 Optical Cards
4.6 4.6.1 OC12 LR/STM4 LH 1550 Card-Level Indicators
Figure 4-5 OC12 LR/STM4 LH 1550 Faceplate and Block Diagram
You can install the OC12 LR/STM4 LH 1550 card in Slots 1 to 4 and 14 to 17. The
OC12 LR/STM4 LH 1550 can be provisioned as part of a two-fiber BLSR, path protection, or linear
ADM.
The OC12 LR/STM4 LH 1550 uses long-reach optics centered at 1550 nm and contains a transmit and
receive connector (labeled) on the card faceplate. The OC12 LR/STM4 LH 1550 uses SC optical
connections and supports 1+1 bidirectional or unidirectional protection switching.
The OC12 LR/STM4 LH 1550 detects LOS, LOF, LOP, AIS-L, and RDI-L conditions. The card also
counts section and line BIT errors.
4.6.1 OC12 LR/STM4 LH 1550 Card-Level Indicators
Table 4-7 describes the three card-level LEDs on the OC12 LR/STM4 LH 1550 card.
uP bus
uP
Flash
RAM
BTC
ASIC
STS-12
Mux/
Demux
Optical
Transceiver
OC-12
Main SCI
Protect SCI
STS-12
B
a
c
k
p
l
a
n
e
61355
FAIL
ACT
SF
OC12LR
STM4LH
1550
1
Tx
Rx
33678 12931
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