GE Security EST3 User Manual

System overview
1.44 EST3 Installation and Service Manual
is low cost, as multiple remote telephone jacks can be installed
on a single branch circuit.
The main disadvantage of this method are: that five phones may
not be adequate to properly cover the facility; a circuit failure
can render many of the phone jacks useless; the location of the
incoming caller is not precisely known; and troubleshooting is
more difficult.

GE Security EST3 Specifications

General

Brand	GE Security
Model	EST3
Category	Security Sensors
Language	English