GAI-Tronics 210-001 Corridor Telephone - Manual (Page 5)

Pub. 42004-449B
Model 210-001 Corridor Telephone Page: 5 of 9
f:\standard ioms - current release\42004 instr. manuals\42004-449b.doc
06/11
Volume Control Jumper Setting
The handset receiver volume control is factory set to default to its original setting (0 dB) when the
telephone is hung up. To save the volume control setting, jumper J4, which is factory set at positions 2
and 3, must be moved to positions 1 and 2. Refer to Figure 6 for the location of J4.
Auxiliary Output
Each telephone includes one isolated solid state switch capable of switching a maximum of 48 V dc, 125
mA or 28 V
RMS
ac, 80 mA
RMS
. TB2 (AUX OUT) on the industrial telephone PCBA provides the
connections for the auxiliary output. Refer to Figure 6 for location of TB2.
The auxiliary output allows peripheral equipment, such as beacons, video cameras, and alarm generators,
to be activated when the handset is off hook. The relay remains energized for the duration of the call.
Figure 6. Industrial Telephone PCBA