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Applying Power and Verifying the Installation

Checking the Alarm and Link LEDs on the Optical (ATM/POS OC-3) Line Card

Each Optical (ATM) line card provides alarm LEDs for each of its four ports. These LEDs are located directly

below the fourth port, as illustrated in the figure below.

Figure 6: Alarm and Link LEDs on the Optical (ATM) Line Card

Table 24: Alarm/Link States for Optical (ATM) Line Card

LED

Red Alarm

Yellow Alarm

Checking the Alarm and Link LEDs on the Optical (ATM/POS OC-3) Line Card

LED Color

Red (ON)

OFF

Yellow (ON)

OFF

Description

Illuminates when the port is in a fault condition, such

as LOS or LOF.

Off when there is no alarm for this port.

Illuminates when the port is receiving a signal

indicating a problem at the remote end, for example,

RDI.

Off when there is no alarm for this port.

ASR 5000 Installation Guide