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Chapter 4
Optical Cards
The OC12 IR/STM4 SH 1310 detects LOS, LOF, LOP, AIS-L, and RDI-L conditions. Refer to the
Cisco ONS 15454 Troubleshooting Guide for a description of these conditions. The card also counts
section and line BIT errors.
To enable APS, the OC12 IR/STM4 SH 1310 card extracts the K1 and K2 bytes from the SONET
overhead to perform appropriate protection switches. The DCC/GCC bytes are forwarded to the
TCC2/TCC2P card, which terminates the DCC/GCC.
4.4.1 OC12 IR/STM4 SH 1310 Card-Level Indicators
Table 4-5
Table 4-5
Card-Level Indicators
Red FAIL LED
Green/Amber ACT
LED
Amber SF LED
4.4.2 OC12 IR/STM4 SH 1310 Port-Level Indicators
You can find the status of the OC-12 IR/STM4 SH 1310 card port by using the LCD screen on the
ONS 15454 fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen
displays the number and severity of alarms for a given port or slot. Refer to the Cisco ONS 15454
Troubleshooting Guide for a complete description of the alarm messages.
4.5 OC12 LR/STM4 LH 1310 Card
For hardware specifications, see the
Note
page
The OC12 LR/STM4 LH 1310 card provides one long-range SONET OC-12 port per card compliant
with ITU-T G.707, ITU-T G.957, and Telcordia GR-253-CORE. The port operates at 622.08 Mbps over
a single-mode fiber span. The card supports VT, nonconcatenated (STS-1), or concatenated (STS-3c,
STS-6c, or STS-12c) payloads.
diagram of the card.
78-18106-01
describes the three card-level LEDs on the OC12 IR/STM4 SH 1310 card.
OC12 IR/STM4 SH 1310 Card-Level Indicators
Description
The red FAIL LED indicates that the card's processor is not ready. This LED
is on during reset. The FAIL LED flashes during the boot process. Replace
the card if the red FAIL LED persists.
The green ACT LED indicates that the card is operational and 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,
AIS-L, or high BERs on one or more of the card's ports. The amber SF LED
is also on if the transmit and receive fibers are incorrectly connected. If the
fibers are properly connected and the link is working, the light turns off.
A-31. See
Table 4-2 on page 4-5
"A.6.4 OC12 LR/STM4 LH 1310 Card Specifications" section on
for optical card compatibility.
Figure 4-4
shows the OC12 LR/STM4 LH 1310 faceplate and a block
Cisco ONS 15454 Reference Manual, R8.5
4.4.1 OC12 IR/STM4 SH 1310 Card-Level Indicators
4-11
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