User guide

AUXILIARY EQUIPMENT INTERFACE
A non-key system telephone device or a data device
can be connected ahead of the common equipment.
Refer to Table 3-1 on page 3-4 and Figure 3-9 below
for connection details for this feature.
The system can detect an off-hook condition in the
connected device, and turn on the line status light at
the button system telephones to indicate that the line
is busy.
Connection is across tip and ring of lines 2 and 4
using the auxiliary interface connections.
Auxiliary interface connections are provided at
terminals 1 and 6 of common equipment modular
jacks 2 and 3.
IMI 66-064 System Description
3-16