P
UB
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42004-472B
A
UTO
-D
IAL
T
ELEPHONE
M
ANUAL
P
AGE
13 of 33
f:\standard ioms - current release\42004 instr. manuals\42004-472b.doc
01/15
External Power for –003AD Models
The Plug-in Power Supply is used for operations below
−
4º F (
−
20º C) and requires 120 V ac input to
provide a 5 V dc output to the unit. The Plug-in Power Supply is provided with a connectorized, 4-foot
power cable that plugs into P17 on the telephone PCBA. Remove the jumper from P17 pins 3 and 4 and
insert to the adjacent header J18 when using the plug-in power supply. See Figure 11 on page 16 for
jumper locations.
N
OTE
:
The external power supply provided with these models does not provide telephone line power for
communications. It simply activates a heater circuit to allow operation to
−
40 ºC.
Connecting a Model 530 Series Strobe
Figure 10 below shows a typical connection detail of the GAI-Tronics 530-001/531A Strobe (sold
separately).
Figure 10. (Model 397-00
x
AD is shown as an example)
Connection to Optional GAI-Tronics 530-001/531A Strobe
