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Chapter 4
Optical Cards
You can install the OC3 IR 4/STM1 SH 1310 card in Slots 1 to 6 and 12 to 17. The card can be
provisioned as part of a path protection or a linear add/drop multiplexer (ADM) configuration. Each
interface features a 1310-nm laser and contains a transmit and receive connector (labeled) on the card
faceplate. The card uses SC connectors.
The OC3 IR 4/STM1 SH 1310 card supports 1+1 unidirectional or bidirectional protection switching.
You can provision protection on a per port basis.
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
Table 4-3
Card-Level Indicators
Red FAIL LED
Green ACT LED
Amber SF LED
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.
78-18106-01
describes the three card-level LED indicators on the OC3 IR 4/STM1 SH 1310 card.
OC3 IR 4/STM1 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 carrying traffic or is
traffic-ready.
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.
4.2.1 OC3 IR 4/STM1 SH 1310 Card-Level Indicators
Cisco ONS 15454 Reference Manual, R8.5
4-7
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