Nortel Networks 400 4.0 Removing the base function tray, Base function tray replacement overview

234Chapter 20 Preparing hardware for maintenance or upgrades

Figure 105 Base function tray replacement overview

Do a

software shutdown

Perform BCM maintenance setup

Remove the base function tray

Replace	No
the base
function
tray?
Yes

Remove all cards.

Re-install all cards

Replace a	No	Replace	No
		different
card?
		component?
Yes		Yes
Remove the
old card.		See correct
Install the		replacement
new card		procedure
Insert the base
function tray
Restore unit to
operation
Check LEDs
END

Removing the base function tray

This procedure describes how to remove the base function tray to perform maintenance or replacement activities.

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: Use care when removing or inserting the base function tray. Do not forcefully remove or insert the base function tray because you could damage or stretch the cables.

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