Using The Auxiliary Equipment Interface - Comdial DSU II System Manual

DSU II Digital Telephone System
2.8

Using The Auxiliary Equipment Interface

You can connect an industry-standard telephone or a data device such as a modem or a FAX
machine on a line ahead of the common equipment if you wish. If you do so, the system can
detect an off-hook condition in the connected device and turn on the line status light at the
system telephones to indicate that the line is busy.
Connection is across tip and ring of lines 2 and 4. The system provides the auxiliary interface
connections at terminals 1 and 6 of common equipment line jacks 1 and 2.
NOTE: When you are employing this auxiliary interface feature, the line-to-line port
reassignment feature (Section 2.4.2 ) works as described except in regard to line 2
and line 4. You can only reassign Line 2 to line port 4 and line 4 to line port 2.
Line
Jack
1
Line
Jack
2
Making The Auxiliary Interface Connections
TIP 2
1
2
3
4
RING 2
5
6
TIP 4
1
2
3
4
5
6
RING 4
Installing The DSU II Digital Telephone System 2 – 29
IMI66–132
Auxiliary
Interface
for Line 2
Auxiliary
Interface
for Line 4
Optional non-key
system telephone
device or data
device. (No A-lead
control required)
DSU210