Nortel Networks 1100 Series - Manual (Page 20)

Setup and assembly
20
Table 2 lists the initialization process for the Expansion Module.
Table 2: Initializing Expansion Module
Phase Description
Expansion
Module performs
self-test The self-test confirms the operation of the
Expansion Module local memory, CPU, and other
circuitry. While undergoing this self-test, the
Expansion Module display lights up.
Attention: If the Expansion Module display does
not light up, or lights up and then goes blank, or
fails to begin flashing, check that the Expansion
Module is correctly installed and configured.
Expansion
Module
establishes
communication
with the
IP Phone The Expansion Module display flashes until it
establishes communication with the IP Phone.
If the Expansion Module display does not stop
flashing, communication has not been established
with the IP Phone. Check that the Expansion
Module is correctly installed and configured.
Firmware
upgrade The Expansion Module firmware is distributed
together with the IP Phone firmware as a part of
the application.
When the IP Phone detects a new Expansion
Module, the firmware version of the Expansion
Module is compared to the version of the
Expansion Module firmware stored on the IP
Phone. If the firmware of the Expansion Module is
different, the phone’s version of the firmware will
be uploaded to the Expansion Module.
Once the updating of the Expansion module
completes (if needed), the firmware now present
on the Expansion Module runs the Expansion
Module.