Avaya BCM50 Hardware Installation Manual page 25

BCM50 Hardware & Installation
2. CTM8:
The CTM8 provides eight analog CLID interfaces to the BCM system
through eight RJ-11 jacks on the front faceplate of the BCM. Each jack
also supports disconnect supervision. There are two auxiliary jacks on
this MBM which connect to Line 1 and Line 5.
The auxiliary ports will interface to a V.92 or V.90 modem, fax machine
unit, or analog telephone. When the auxiliary device is active, the BCM
system disables the associated line. If the line is active, the auxiliary
port line is disabled.
When an analog telephone is connected to the auxiliary port, it can be
used as an emergency telephone because this line remains active
during a power outage.
NN40011-002 Issue 1.2 BCM50 Rls 6.0 25