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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 4 Optical Cards
4.3 4.2.1 OC3 IR 4/STM1 SH 1310 Card-Level Indicators
The OC3 IR 4/STM1 SH 1310 card detects loss of signal (LOS), loss of frame (LOF), loss of pointer
(LOP), line-layer alarm indication signal (AIS-L), and line-layer remote defect indication (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 interleaved parity (BIP) errors.
To enable automatic protection switching (APS), the OC3 IR 4/STM1 SH 1310 card extracts the K1 and
K2 bytes from the SONET overhead to perform appropriate protection switches. The data
communication channel/general communication channel (DCC/GCC) bytes are forwarded to the
TCC2/TCC2P card, which terminates the DCC/GCC.

4.2.1 OC3 IR 4/STM1 SH 1310 Card-Level Indicators

Table 4-3 describes the three card-level LED indicators on the OC3 IR 4/STM1 SH 1310 card.

4.2.2 OC3 IR 4/STM1 SH 1310 Port-Level Indicators

Eight bicolor LEDs show the status per port. The LEDs are green if the port is available to carry traffic,
is provisioned as in-service, and is part of a protection group, in the active mode. You can find the status
of the four card ports 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.
4.3 OC3 IR/STM1 SH 1310-8 Card
Note For hardware specifications, see the “A.6.2 OC3 IR/STM1SH 1310-8 Card Specifications” section on
page A-26. See Table 4-2 on page 4-4 for optical card compatibility.
The OC3 IR/STM1 SH 1310-8 card provides eight intermediate or short range SONET/SDH OC-3 ports
compliant with ITU-T G.707, ITU-T G.957, and Telcordia GR-253-CORE. Each port operates at
155.52 Mbps over a single-mode fiber span. The card supports VT, nonconcatenated (STS-1), or
concatenated (STS-3C) payloads.
Table 4-3 OC3 IR 4/STM1 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 ACT LED The green ACT LED indicates that the card is carrying traffic or is
traffic-ready.
Amber SF LED The amber SF LED indicates a signal failure or condition such as LOS, LOF,
AIS-L, or high bit error rate (BER) 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 links are working, the
light turns off.