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192 Chapter 9 Replace or Upgrade a Power Supply
P0993133 03
Replace a Standard Power Supply
If the platform base chassis or expansion unit has a standard power supply that fails, then all
activity on the system ceases. This procedure describes how to replace a failed standard power
supply unit. Figure 117 provides an overview of the process to replace a standard power supply.
Figure 117 Standard power supply replacement overview
Remove a BCM200 standard power supply
If the standard power supply fails, the system is down. Use this procedure to remove the standard
power supply from a BCM200 platform base chassis.
1 Set up the Business Communications Manager for maintenance (see “Shut down the system
hardware” on page 146).
2 Disconnect all cables from the front of the base function tray. Disconnect the platform base
chassis and the expansion unit (if applicable), from the AC power connection.
3 Remove the top cover from the platform base chassis (see “Remove the platform base chassis
top cover” on page 161).
Warning: Protect the hardware components against damage from electrostatic discharge.
Always wear a ground wrist strap before you handle components. Always place the
components in static-free container.
Warning: Power supply cable management is critical. Cable damage can result due to
loose or incorrectly positioned cables.
System down
Set up unit for
maintenance
Remove failed
power supply
Restore unit to
operation
Check power LED
Reconnect power
supply cables
Check
connections
Install new power
supply
Disconnect
power supply
cables. Note
cable routing