Nortel Networks BCM200/400 - Manual (Page 286)

286 Chapter 23 Replacing or upgrading a power supply
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11 Remove the four power supply chassis screws from the back of the main unit (see Figure 137 ).
Place the screws in a safe location.
Figure 137 Remove the BCM200 power supply screws
12 Separate the power supply cable from the hard disk cable. Cut the tie-wrap that secures the
power supply cable to the hard disk cable (see Figure 139 ).
13 Remove the power supply from the interior of the main unit.
Installing a BCM200 standard power supply
Use this procedure to install a functional standard power supply in a BCM200 main unit. The I/O
card must be removed from the main unit before you perform this procedure. The base function
tray must be partially removed.
To install a BCM200 standard power supply
1 Obtain and use only the power supply recommended by Nortel.
2 Place the new power supply into the main unit.
Note: Remove the power supply carefully. Ensure the power supply cables are not
entangled or connected to any internal components.
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.
Warning: Power supply cable management is critical. Loose or incorrectly positioned
cables can result in cable damage.