GAI-Tronics 352-001 UL Class I Division 1 Telephones - Manual (Page 9)

Pub. 42004-454A
Model 352-001, 352-002, 352-003, and 352-004 Division 1 Telephones Page: 9 of 13
f:\standard ioms - current release\42004 instr. manuals\42004-454a.doc
12/11
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 main PCBA provides the connections for the
auxiliary output. Refer to Figure 10 for the location of TB2. This output remains energized for the
duration of a call.
Figure 10.
Attach the Front Cover
After all adjustments have been completed, inspect and clean the machined flange joint surfaces of both
the cover and box. Surfaces must be smooth, free of nicks, scratches, dirt or any foreign particle build-up
that would prevent a proper seal. Surfaces must seat fully against each other to provide a proper
explosion-proof joint. Clean surfaces by wiping with a clean lint-free cloth.
Apply a light coat of Killark “LUBG” lubricant to flange surfaces and close the cover. Install and tighten
all cover bolts to 30 ft-lbs. Make certain no cover bolts are omitted. Use only those bolts supplied with
the enclosure.
N OTE : Refer to the Killark Installation, Operation, and Maintenance Data Sheet enclosed with the unit
for additional enclosure information.