Maintenance Procedures; Hot Swapping Faulty Modules - Mitel 300 Installation And Maintenance Manual

Maintenance procedures

Faults can be rectified on site by replacing faulty modules or PCBs (Printed Circuit Boards).

Hot Swapping faulty modules

The Network modules can be replaced without powering the system down.

If a Network module is replaced by the same type of module e.g. PSTN by PSTN, the
switch will return to normal operation when the new module is inserted

If a Network Module is to be replaced by a different type of Network Module (e.g. a
PSTN module replaced by an ISDN module) the system must be reset, by pressing
the reset switch in the CCU MDF area, so that the system can recognise the new
module type.
If an ISDN line is replacing an PSTN line ensure the PSTN line cable is
disconnected before connecting the ISDN Line or installing the module.
The same applies if an PSTN line replaces an ISDN line.

The Expansion Modules can be removed and replaced without powering down the
system

The Voice module can be removed and replaced without powering down the system.

When a Voice Module is replaced all recorded messages and greetings are lost.

The Broadband Module cannot be removed and replaced without powering down the
system.

The Primary Rate ISDN Module can be removed and replaced without powering
down the system.
Mitel 3000 Australia Installation and Maintenance Manual
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