Nortel Networks 400 4.0, BCM200 manual Removing a BCM400 standard power supply, Power supply LED

282Chapter 23 Replacing or upgrading a power supply

10Loop the cables together and tie-wrap to the side of the power supply to remove P1, P9, P3, P7/8 excess cable length. Fold the cables to the rear of the main unit and secure with a tie-wrap. Ensure the cables are tied far enough back so they do not interfere with the insertion of the base function tray.

11Attach the fan plug to the I/O card Fan #1 connection. Loop excess fan cable length under the I/O card.

Note: Verify the power supply cables are connected correctly and do not interfere with any internal components.

12Insert the base function tray fully into the main unit. Ensure the base function tray does not interfere with any cabling.

13Replace the main unit top cover. See “Installing the main unit top cover” on page 246.

14Press the power supply switch to the ON position (if applicable). Plug the BCM power cord into an AC power outlet.

15Restore the BCM system to operation. For details, refer to “Restarting the system after maintenance” on page 232. The BCM system starts when you connect the AC power cord. Wait for the start-up process to finish.

16Monitor the power LED on the base function tray. Refer to Table 83.

Table 83 Power supply LED

LED		Green	Green		Green
Label	Description	LED On	LED Flash	Red LED On (Only)	LED Off
	Indicates state of system	OK	N/A	A minimum of 1 PS needs	N/A
	power.			attention.

aIf the BCM system does not power up, press the reset button on the base function tray front panel.

bIf the Power LED is red and does not respond to a manual reset, this indicates a faulty power condition. Contact your Nortel representative.

cIf the Power LED is green, the system is operating normally.

Removing a BCM400 standard power supply

Use this procedure to remove the standard power supply from a BCM400 main unit.

Warning: Protect the hardware components against damage from electrostatic discharge. Always wear a grounded wrist strap before you handle components. Always place the components in a static-free container.

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