User's Manual

240 Chapter 20 Preparing hardware for maintenance or upgrades
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Figure 110 Advanced function tray
For information on how to replace the hard disk, refer to “Removing a hard disk cage from a
BCM400 advanced function tray” on page 260.
Use the flowchart shown in Figure 111 as a summary guide to maintain the advanced function
tray.
Danger: Electrical shock warning
Disconnect the power cord, telephone cables, and network cables before opening the BCM
main unit. Read and follow installation instructions carefully.
Caution: Use only a Nortel-approved replacement. Contact your account representative
for the current list of approved replacement parts.
Warning: Use care when removing or inserting the advanced function tray. Do not
forcefully remove or insert the advanced function tray because you could damage or
stretch the cables.
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 or work area.
Advanced function
tray
Status LEDs
(RAID only)
Reset button
Reserved bay
Advanced function
tray latch
Hard disk
Bezel screw
Hard disk cage