Cisco Systems 15454-FTF2 4.5 OC12 LR/STM4 LH 1310 Card

4-11

Cisco ONS 15454 Reference Manual, R8.5.x

78-18106-01

Chapter 4 Optical Cards

4.4.1 OC12 IR/STM4 SH 1310 Card-Level Indicators

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.

Table 4-5 describes the three card-level LEDs on the OC12 IR/STM4 SH 1310 card.

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

Note For hardware specifications, see the “A.6.4 OC12 LR/STM4 LH 1310 Card Specifications” section on

page A-31. See Table 4-2 on page 4-5 for optical card compatibility.

The OC12 LR/STM4 LH 1310 card provides one long-range SONET OC-12 port per card compl iant

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. Figure 4-4 shows the OC12 LR/STM4 LH 1310 faceplate and a block

diagram of the card.

Table 4-5 OC12 IR/STM4 SH 1310 Card-Level Indicators

Card-Level Indicators Description

Red FAIL LED 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.

Green/Amber ACT

LED

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).

Amber SF LED 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 turn s off.