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T640 Router Three-Input 240-A DC Power Supply LEDs

LEDs on each power supply faceplate (see Figure 1) indicate the status of the power supply. In addition, a power supply failure triggers the red alarm LED on the craft interface. Table 1 describes the functions of the power supply LEDs.

Figure 1: Three-Input 240-A DC Power Supply LEDs

Image g002405.gif

Table 1 describes the three-input 240-A power supply LEDs.

Table 1: Three-Input 240-A DC Power Supply LEDs

LED

Color

State

Description

CB ON—One per input

Green

On steadily

Circuit breaker is on.

Off

Circuit breaker is not turned on, or host subsystem has detected a failure and has turned the circuit breaker off.

DC OK—One per power supply

Blue

On steadily

When the power supply is correctly set to 3–INPUT mode and all three inputs are properly energized, the DC OK LED indicates that the power supply is functioning normally.

Blinking

Power supply is starting up, is not functioning, is not properly installed, or is not operating properly.

INPUT PRESENT—One per input

Green

On steadily

Input is receiving voltage.

Off

Input voltage is not present.

OVER TEMP—One per power supply

Yellow

On steadily

Power supply has exceeded recommended temperature.

Off

Power supply is within the recommended temperature or the power supply is not on.

Published: 2009-09-26