GE NetworX Series Installation And Startup Guide

6 NX-
320E Power Supply
VI. TERMINAL DESCRIPTIONS
Table VI:1
Terminal Description
DATA
Connect to the NX-8 / NX-8E / NX-8-CF control panel Data terminal. This terminal is the
incoming data-signaling terminal to the
p
ower su
pp
l
y
module. The maximum total wire run
from the control panel to all devices, including the NX-320E is 2500 feet.
COM
Connect to the NX-8 / NX-8E / NX-8-CF control panel COMMON terminal. This terminal
supplies the common side of the power to the NX-320E board.
POS
Connect to control panel AUX POWER + terminal. This terminal supplies power to the NX-
320E board.
DATA
This terminal is the outgoing data-signaling terminal for buss extension. The maximum total
wire run from the NX-320E to all outgoing devices is 2500 feet.
COM
Common terminal for any device powered from the NX-320E.
OUT A
Programmable output current limited to 1.9 Amps.
OUT B
Programmable output current limited to 1.9 Amps. 
COM
Common terminal for any device powered from the NX-320E.
OUT C
Programmable output current limited to 1.9 Amps. 
BELL +
Positive of bell output current limited to 2.5 Amps, but 600mA
for UL applications. Connect as in diagram on page 7.
BELL -
Negative of bell output current limited to 2.5 Amps, but 600mA
for UL applications. Connect as in diagram on page 7.
The total current of the
NX-320E is 2.5 Amps. 
TAM
This is an o
p
tional tam
p
er terminal. To use this feature, connect the normall
y
closed tam
p
er
switch between this terminal and COM. If switch 4 is off, this feature is not used.
EARTH
Earth Ground.
AC
AC Input. Connect to a 16.5V 50 VA Class II UL approved transformer.
AC
AC Input. Connect to a 16.5V 50 VA Class II UL approved transformer.
 Total of 1.9 Amps between outputs A,B,C.
 Total of 2.5 Amps between Bell and outputs.
VII. WIRING REQUIREMENTS
Table VII:1
LENGTH WIRE GAUGE
(IN FEET)
WHEN CONNECTED
TO NX-8 / NX-8E / NX-8-CF
400 24
500 24
1000 24
2000 22

For UL COMMERCIAL FIRE
installations, a minimum of
18 AWG shall be used for all
field-wiring applications,
regardless of this chart.
2500 20

GE NetworX Series Specifications

General

Model	NetworX Series
Zones	Varies by model (e.g., 8, 16, 32, 64)
Partitions	Varies by model (typically 1-8)
Keypads	Supports multiple keypads
Communication	Phone line, cellular, IP
Power Supply	16.5 VAC
Backup Battery	12VDC, 7AH
User Codes	Varies by model (e.g., 48, 150, 300)
Event Buffer	Varies by model (e.g., 200, 500, 1000 events)
Operating Temperature	0°C to 49°C (32°F to 120°F)
Communication Protocol	Contact ID, SIA
Weight	Varies by model
Dimensions	Varies by model (e.g., 14.5" x 12.5" x 3.5")