Nortel Networks BCM1000 manual Upgrading to a redundant power supply, Power supply LED

208 Chapter 18 Replacing a power supply

8Monitor the power LED. Refer to Table 43.

Table 43 Power supply LED

LED		Green	Green		Green
Label	Description	LED On	LED Flash	Red LED On (Only)	LED Off
	Indicates state of system power.	OK	N/A	at least one power supply	N/A
				requires attention*
				*Older models may not have a
				Red LED

The Business Communications Manager system starts up when you connect the ac power cord. This takes several minutes to complete.

Upgrading to a redundant power supply

The redundant power supply allows you to change a failed power supply without turning off the system. You can add a redundant power supply to a BCM1000 currently equipped with a standard power supply.

Figure 115 provides an overview of the steps required to upgrade your system from a standard power supply to a redundant power supply module.

Figure 115 Process Map: Upgrading to a redundant power supply

Shut the system	Make internal	Turn power
down	connections	module
		switches on
	Ensure power
Set up unit for
	module switches
maintenance		Restore unit to
	are off
		operation
Remove	Insert both
standard power		Check power LED
	modules into
supply	power supply
	housing
Install redundant
power supply
housing

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