GE Security EST3 User Manual

System overview
1.10 EST3 Installation and Service Manual
Local mic.
Remote mic.
Firefighter’s
telephone
Auxiliary
input
Audio signals
Digital message
playback unit
Tone / message
database
Digital signals
Multiplexer
Network audio riser (eight
digitized audio channels)
Figure 1-6: ASU Signal Flow
The amplifiers at the remote-panels extract the audio signals
from the network riser, amplify it and send it to the speakers.
Network audio riser
(eight digitized audio
channels)
Network data riser
(command and control)
Demultiplex
and decode
Local tone
generator
Channel
selection and
supervision
Power
amp
25/70 VRMS
supervised audio
circuit
EOLR
Figure 1-7: Amplifier Signal Flow
Audio signal priority
During system configuration, each of the eight available audio
channels is assigned one of the five available attributes listed in
Table 1-1. The Page, and Auxiliary attributes may only be
assigned to a single channel. The General attribute may be
assigned to up to four channels.
Table 1-1: Network audio channel parameters
Channel attribute Priority
PAGE 1
EVAC 2
ALERT 3
AUXILIARY 4

GE Security EST3 Specifications

General

Brand	GE Security
Model	EST3
Category	Security Sensors
Language	English