Nortel Networks BCM 4.0 - Manual (Page 7)

About the Key Expansion Module (KEM) 7
IP Key Expansion Module (KEM) User Guide
Using the wall-mount option
The IP Phone and IP Phone KEM combination can be wall-mounted using the optional bracket kit
provided. The second IP Phone KEM is attached to the right side of the first IP Phone KEM.
Adjusting the tilt base
The tilt base for the IP Phone 2002 cannot be adjusted; however, the tilt base on the IP Phone
KEM can be adjusted to match the fixed angle of the IP Phone 2002.
The IP Phone 2004 has an adjustable tilt base. Adjust the tilt of both the IP Phone 2004 and the
IP Phone KEM as desired.
Initializing the KEM
Once the IP Phone KEM has been installed and powered up on your IP Phone 2002 or 2004, the
IP Phone KEM initializes. When this occurs, the IP Phone KEM display lights up and flashes until
it establishes communication with the IP Phone. When initialization completes successfully, the
additional programmable keys on the IP Phone KEM are ready to use.
When you power up both the IP Phone and the IP Phone KEM together, the IP Phone will boot up
first. A tone will sound to indicate that the IP Phone has initialized successfully. The labels will
display on the IP Phone KEM to indicate that it has initialized successfully.
Hot plug-in
Hot plug-in refers to the connection of one or more IP Phone KEMs to an active IP Phone. When
you connect an IP Phone KEM to an IP Phone that is already active, the IP Phone does not need to
be restarted. If there are other IP Phone KEMs already connected to the IP Phone, all the IP Phone
KEMs will reboot when you connect a new module.
Coldstart
You can press a sequence of keys (on the KEM) to trigger a cold start of a single IP Phone KEM,
or all IP Phone KEMs attached to the same IP Phone. The sequence must be performed while the
icons are flashing.
• To coldstart a single IP Phone KEM, press the following sequence of keys: 0, 12, 22, 10.
• To coldstart all attached IP Phone KEMs, press the following sequence of keys: 0, 12, 23, 11.
Figure 3 illustrates both coldstart sequences.
Note: If the IP Phone KEM display does not stop flashing or does not display key labels,
contact your system administrator.
Note: If you install two IP Phone KEMs on your IP Phone, the one directly attached to
the IP Phone (to the immediate right of the IP Phone) must be functional for the second
IP Phone KEM to operate. This is because the second IP Phone KEM uses the first IP
Phone KEM to receive its power and communicate with the IP Phone.