Chapter 4
Optical Cards
Sixteen distinct OC-192/STM-64 ITU 100 GHz DWDM cards comprise the ONS 15454 DWDM channel
plan. Each OC192 LR/STM64 LH ITU 15xx.xx card provides one long-reach STM-64/OC-192 port per
card, compliant with ITU-T G.707, ITU-T G.957, and Telcordia GR-253-CORE (except minimum and
maximum transmit power, and minimum receive power). The port operates at 9.95328 Gbps over
unamplified distances up to 60 km (37 miles) with different types of fiber such as C-SMF or dispersion
compensated fiber limited by loss and/or dispersion.
The laser is on when the optical card is booted. The port does not have to be in service for the laser
Warning
to be on. Statement 293
Longer distances are possible in an amplified system using dispersion compensation.
Note
The card supports VT, nonconcatenated (STS-1), or concatenated payloads.
OC192 LR/STM64 LH ITU 15xx.xx faceplate.
Figure 4-19
OC192LR
STM64LH
ITU
FAIL
ACT
SF
Tx
1
Rx
RX
MAX INPUT
POWER LEVEL
-8 dBm
Figure 4-20
78-18106-01
OC192 LR/STM64 LH ITU 15xx.xx Faceplate
RX
MAX INPUT
POWER LEVEL
-8 dBm
shows a block diagram of the OC192 LR/STM64 LH ITU 15xx.xx card.
4.17 OC192 LR/STM64 LH ITU 15xx.xx Card
Figure 4-19
Cisco ONS 15454 Reference Manual, R8.5
shows the
4-39
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