4-34
Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 4 Optical Cards
4.16 4.16 OC192 LR/STM64 LH 1550 Card
Warning
The laser is on when the optical card is booted. The port does not have to be in service for the laser
to be on.
Statement 293
Figure 4-15 shows the OC192 LR/STM64 LH 1550 (15454-OC192LR1550) faceplate and a block diagram of the card.

Figure 4-15 OC192 LR/STM64 LH 1550 (15454-OC192LR1550) Faceplate and Block Diagram

Figure 4-16 shows an enlarged view of the faceplate warning for 15454-OC192-LR2.
Demux
CDR
Flash
SRAM
Optical
transceiver
DAC x 8
ADC x 8
Dig Pol x 2
Mux
BTC
ASIC
STSOC-192
SCL
Processor
61361
B
a
c
k
p
l
a
n
e
Mux
CK Mpy
Optical
transceiver Mux
STS
OC-192
SCL
FAIL
ACT/STBY
SF
DANGER - INVISIBLE
LASER RADIATION
MAY BE EMITTED
FROM THE END OF
UNTERMINATED
FIBER CABLE OR
CONNECTOR. DO
NOT STARE INTO
BEAM OR VIEW
DIRECTLY WITH
OPTICAL
INSTRUMENTS.
TX
TX
1
RX
OC192LR
STM64LH
1550
0
MAX INPUT
POWER LEVEL
- 10dBm
RX

!

1
Class 1M (IEC)
Class 1 (CDRH)