Cisco ONS 15454 SDH Specifications Page 174

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Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
OC48 IR/STM16 SH AS 1310 Card
The OC48 IR/STM16 SH AS 1310 detects LOS, LOF, LOP, MS-AIS, and MS-FERF conditions. Refer
to Chapter 1, “Alarm Troubleshooting,” for a description of these conditions. The card also counts
section and line BIT errors.
3.22.1 OC48 IR/STM16 SH AS 1310 Card-Level Indicators
The OC48 IR/STM16 SH AS 1310 card has three card-level LED indicators.
3.22.2 OC48 IR/STM16 SH AS 1310 Port-Level Indicators
You can find the status of the OC48 IR/STM16 SH AS 1310 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 Chapter 1, “Alarm Troubleshooting,”
for a complete description of the alarm messages.
Figure 3-36 OC48 IR/STM16 SH AS 1310 Block Diagram
Table 3-15 OC48 IR/STM16 SH AS 1310 Card-Level Indicators
Card-Level LEDs Description
Red FAIL LED The red FAIL LED indicates the card’s processor is not ready. This LED is
lit 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 OC48 IR/STM16 SH AS 1310 card
is carrying traffic or is traffic-ready.
Yellow SF LED The yellow SF LED indicates a signal failure or condition such as LOS, LOF,
MS-AIS or high BERs on one or more of the cards ports. The Yellow SF
LED also illuminates when the transmit and receive fibers are incorrectly
connected. When the fibers are properly connected and the link is working,
the light turns off.
uP bus
uP
Flash
RAM
BTC
ASIC
Optical
Transceiver
STM-16
Main SCI
Protect SCI
STM-16
63119
Mux/
Demux
B
a
c
k
p
l
a
n
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