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PN: 1725-36097-001_J.doc
53
Replace an MCU
When the system has more than one MCU, each MCU contains a
complete set of configuration information for the entire system. This
includes handset registration information, function definitions, and
frequency sequence selection.
This Configuration Sharing feature allows a failed MCU in a multi-
unit installation to be replaced without having to register the handsets
again.
To replace a failed MCU, first clear the configuration information on
the replacement MCU, then replace the failed MCU.
Clear configuration on replacement MCU
1. Remove power from the replacement MCU. There should be no
IPC cables connected to the IPC ports.
2. Slide the mode switch on the replacement MCU to the
ADMIN
position.
3. Apply power.
4. Press the
STEP button until the STATUS LEDs light 2, 3, and 4 of the
replacement MCU.
5. Press the
DEL/ENTER button.
6. Remove power from the unit.
7. Slide the mode switch to the
NORMAL position.
Connect the replacement MCU
1. Remove the failed MCU from the IPC chain
2. Connect the replacement MCU in the position vacated by the
failed MCU.
3. Reconnect the IPC cables for the chain. Double-check that the
IN
and
OUT ports are correctly connected.
4. Apply power to the MCU.