Hubbell GAI-Tronics 227-001, General Information Manual, Page: 17 / 23

Pub. 42004-338K
Rugged Analog Auto-Dial Telephones Page 16 of 21
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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. Move jumper
J4
from positions
2
and
3
to positions
1
and
2
to save the current
volume control setting when hanging up the telephone (see Figure 17
)
.
Auxiliary Output
Each telephone includes one isolated solid-state volt-free closure capable of switching a maximum of 48
V dc, 125 mA; or 28 V ac
RMS
, 80 mA
RMS
. TB2 (AUX OUT) on the main PCBA provides the connections
for the auxiliary output (see Figure 17 ) .
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 17. Location of TB2 on Main PCBA