ETP-120
Series Phone
Installation & Operation Manual
Page
7
of
27
Rev. 7/2/2021
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3. Auxiliary Inputs/Outputs
All ETP-120 Series models include
one (1) Auxiliary Input
. Some models are
optionally available in
a configuration that provides one (1) Auxiliary Output
(only models numbers with the
X
designator).
Auxiliary Input
The Auxiliary Input connection is comprised of the
red-red wires
. This input accepts a standard dry
contact closure.
Auxiliary Output
The ETP-120 Series is
optionally available in a configuration that provides one (1) Auxiliary
Output
(only models numbers with the
X
designator).
The single Auxiliary Output is rated at a maximum of 500 mA at 200VDC. This Auxiliary Output
provides a dry contact closure when the unit goes off-hook.
The
Auxiliary Output
connection can be found on
N.O.
and
COM
pins.
