HardwareReplacement 9-11
Octel 200/300 S.4.1PB60019−01
9.2 HARDWARE REPLACEMENT GUIDELINES
Youcan safely replace subassemblies in Octel 200 or Octel 300 message servers by following the procedures
in this chapter. None of the subassemblies contain replaceable components; replacing, attempting to replace,
or modifying any subassembly components voids all warranties. Octel can replace an assembly with an
equivalent assembly.
Caution!
To install or replace floppy disk drives or the Power
Supply Unit (PSU), you must turn OFF the power to
the message server. Refer to the Power SupplyUnit
section in this chapter for details about turning OFF
power. Hard disk drives, line interface cards,
integration cards, and fax application processors can
be replaced when the power is ON.
.The message server must be restarted if a LIC (Line Interface Card), integration card, or fax
application processor is added or if the replacement card is not the same as the card removed.
Refer to the Hard Disk Drive Replacement section in this chapter for considerations regarding hot
plug replacement of disk drives.
When replacing or installing subassemblies in an Octel 200/300 cabinet, use the following guidelines:
-Close and lock the cabinet door when not working on the cabinet. The door should not be left open
for more than one hour at a time.
-Always wear an antistatic wrist strap before handling any parts.
Caution!
Printed Circuit Assemblies, such as the CPU card,
contain static-sensitive components. The human body
can easily store enough static electricity to damage a
PCA. Toavoid discharging this energy to electronic
assemblies, always wear an antistatic wrist strap
when handling assemblies.
Put on the strap before removing a component from
its static bag. Wrap one end around your wrist and
attach the other end to an unpainted part of the
cabinet. The Octel 200/300 must be plugged into a
grounded outlet. Wear the strap during the entire
replacement procedure.

Printed Circuit Assembly (PCA) Replacement

Use this procedure to replace the following PCAs:
-VoiceControl Units (VCU)
-Central Processing Units (CPU)
To replace Line Interface Cards (LIC), refer tothe Line Interface Card Replacement section in this
chapter. Toreplace integration cards, refer to the Integration Card Replacement section in this chapter.