Cisco ONS 15454 SDH Specifications Page 185

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3-65
Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
OC192 LR/STM64 LH 1550 Card
Figure 3-41 OC192 LR/STM64 LH 1550 Faceplate
The OC192 LR/STM64 LH 1550 card provides one long-range, ITU-T G.707, ITU-T G.957-compliant,
SDH STM-64 port per card. Also, the port is ITU-T G.691 (pre published unedited version 10/2000)
L-64.2 compliant, except for optical output power and receiver sensitivity (see the note in OC192
LR/STM64 LH 1550 Card Specifications, page 3-67). The port operates at 9.95328 GBits/s (Gbps) over
unamplified distances up to 80 km with different types of fiber such as C-SMF or dispersion
compensated fiber limited by loss and/or dispersion. The card supports concatenated or
non-concatenated payloads on a VC-4 basis, as well as VC-4, VC-3, and VC-12 payloads. Figure 3-41
shows the OC192 LR/STM64 LH 1550 faceplate and Figure 3-42 shows a block diagram of the card.
Note You must use a 20 dB fiber attenuator (19 to 24 dB) when working with the OC192 LR/STM64 LH
1550 card in a loopback. Do not use fiber loopbacks with the OC192 LR/STM64 LH 1550 card.
Using fiber loopbacks causes irreparable damage to the OC192 LR/STM64 LH 1550 card.
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
55384
Class 1M (IEC)
Class 1 (CDRH)
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
MAX INPUT
POWER LEVEL
- 10dBm
RX
!
Class 1M (IEC)
Class 1 (CDRH)
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