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Chapter 4
Optical Cards
The OC48 ELR 200 GHz cards support extended long-reach applications in conjunction with optical
amplification. Using electro-absorption technology, the OC48 DWDM cards provide a solution at the
lower extended long-reach distances.
The OC48 ELR 200 GHz interface features a 1550-nm laser and contains a transmit and receive
connector (labeled) on the card faceplate. The card uses SC connectors and supports 1+1 unidirectional
and bidirectional protection switching.
The OC48 ELR 200 GHz cards detect LOS, LOF, LOP, AIS-L, and RDI-L conditions. The cards also
count section and line BIP errors. To enable APS, the OC48 ELR 200 GHz cards extract the K1 and K2
bytes from the SONET overhead. The DCC bytes are forwarded to the TCC2/TCC2P card; the
TCC2/TCC2P terminates the DCC/GCC.
4.13.1 OC48 ELR 200 GHz Card-Level Indicators
Table 4-14
Table 4-14
Card-Level Indicators
Red FAIL LED
Green/Amber ACT
LED
Amber SF LED
4.13.2 OC48 ELR 200 GHz Port-Level Indicators
You can find the status of the OC48 ELR 200 GHz card ports by using the LCD screen on the
ONS 15454 fan-tray assembly. Use the LCD to quickly view the status of any port or card slot; the screen
displays the number and severity of alarms for a given port or slot.
4.14 OC192 SR/STM64 IO 1310 Card
For hardware specifications, see the
Note
on page
The OC192 SR/STM64 IO 1310 card provides one intra-office haul SONET/SDH OC-192 port in the
1310-nm wavelength range, compliant with ITU-T G.707, ITU-T G.691, ITU-T G.957, and Telcordia
GR-253-CORE. The port operates at 9.95328 Gbps over unamplified distances up to 2 km (1.24 miles).
The card supports VT, nonconcatenated (STS-1), or concatenated payloads.
78-18106-01
describes the three card-level LEDs on the OC48 ELR 200 GHz cards.
OC48 ELR 200 GHz Card-Level Indicators
Description
The red FAIL LED indicates that the card's processor is not ready. Replace
the card if the red FAIL LED persists.
The green ACT LED indicates that the card is carrying traffic or is
traffic-ready. The amber ACT LED indicates that the card is part of an active
ring switch (BLSR).
The amber SF LED indicates a signal failure or condition such as LOS, LOF,
or high BERs on the card's port. The amber SF LED is also on if the transmit
and receive fibers are incorrectly connected. If the fibers are properly
connected, the light turns off.
A-39. See
Table 4-2 on page 4-5
4.13.1 OC48 ELR 200 GHz Card-Level Indicators
"A.6.13 OC192 SR/STM64 IO 1310 Card Specifications" section
for optical card compatibility.
Cisco ONS 15454 Reference Manual, R8.5
4-29
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