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42004-484F
A
NALOG
C
LEAN
P
HONE
®
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ELEPHONES
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p:\standard ioms - current release\42004 instr. manuals\42004-484f.docx
09/15
Auxiliary Outputs
Each telephone includes two isolated solid state switches capable of switching a maximum of 48 V dc,
125 mA or 28 V
RMS
ac, 80
RMS
mA. TB2 (OUT1) and TB5 (OUT4) on the emergency telephone PCBA
provides the connections for the auxiliary outputs. Refer to Figure 9 for the location of TB2 and TB5.
Auxiliary Output Control
As previously noted, each Analog Clean Phone
®
is capable of providing two isolated control outputs in
the form of a dry (volt-free) contact closure rated at 125 mA.
Output 1 connects to TB2 on the telephone’s PCBA (refer to Figure 9). This output closes when the
A
UTO
-
DIAL
1
push button is pressed and remains in that state for the duration of the telephone call.
N
OTE
:
Output 1 can be programmed to remain closed for up to 255 minutes (in 1 minute increments)
after the call ends. This output extension can be deactivated via an external switch or by pressing “
*921
”
on the keypad of the called telephone. The Clean Phone
®
will acknowledge acceptance of this
deactivation command with a short beep. If the beep is not initially received, retry the command.
Output 4, connects to TB5 on the telephone’s PCBA (adjacent to TB2). This output can be remotely
controlled via an appropriate DTMF command. This remote control output could be used to activate or
control a door latch, gate relay solenoid, alarm, etc. from the called party location.
