Hardware Technical Reference Manual
Music On Hold Connector
The Music On Hold port uses a 3.5 mm stereo jack for input-signal connection. It will also accept
a 3.5 mm mono plug.
Paging Connector
Paging 3 Paging signal
4 Paging signal
6 Not used
2 Paging relay common
5 Paging relay NO (normally open)
1 Paging relay NC (normally closed)
Table 37: MOH Connector
Conductor Signal
SHIELD MOH_COM
RING MOH_1
TIP MOH_2
Note: The two input signals are equivalent to the left and right channel signals from a stereo source
and are combined internally into a single channel.
Table 38: Paging Connector
Pin Number Signal
1 Common contact
2 Normally closed contact
3 Normally open contact
4 Page1 (Tip)
5 Page2 (Ring)
6 No connection
7 Not used
8 Not used
Note: The Paging port is an 8-pin RJ-45 connector on the rear panel of the MX controller. The paging
port has a tip/ring pair for audio and contact closures for zone control. The normally closed contact
opens when paging and the normally open contact closes when paging.
Table 36: RJ-11 Line/Trunk Connector Pin Allocation (continued)
Port Pin Number Function
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