Datasheet

4-16
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 4 Optical Cards
4.7.2 OC12 IR/STM4 SH 1310-4 Card-Level Indicators
Each port is configurable to support all ONS 15454 SDH configurations and can be provisioned as part
of an MS-SPRing or SNCP configuration.
To enable an MS-SPRing, the OC12 IR/STM4 SH 1310-4 card extracts the K1 and K2 bytes from the
SDH overhead and processes them to switch accordingly. The GCC bytes are forwarded to the TCC2
card, which terminates the GCC.
Note If you ever expect to upgrade an OC-12/STM-4 ring to a higher bit rate, you should not put an
OC12 IR/STM4 SH 1310-4 card in that ring. The four-port card is not upgradable to a single-port card.
The reason is that four different spans, possibly going to four different nodes, cannot be merged to a
single span.
4.7.2 OC12 IR/STM4 SH 1310-4 Card-Level Indicators
Table 4-8 describes the three card-level LED indicators on the OC12 IR/STM4 SH 1310-4 card.
4.7.3 OC12 IR/STM4 SH 1310-4 Port-Level Indicators
You can find the status of the four card ports using the LCD screen on the ONS 15454 SDH 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 SDH Troubleshooting Guide
for a complete description of the alarm messages.
4.8 OC48 IR/STM16 SH AS 1310 Card
Note For specifications, see the “A.6.7 OC48 IR/STM16 SH AS 1310 Card Specifications” section on
page A-34.
Note Any new features that are available as part of this software release are not enabled for this card.
Table 4-8 OC12 IR/STM4 SH 1310-4 Card-Level Indicators
Card-Level LED Description
Red FAIL LED The red FAIL LED indicates that the card processor is not ready. The FAIL
LED is on during reset and 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,
MS-AIS, or high BER on one or more card 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.