System Sensor DH400 User Manual

D400-14-00 6 I56-554-05
SUPERVISORY
SWITCH
21
3
(+) IN (+) OUT
(+)
(+)
4
5
(–)
(–) IN (–) OUT
1ST DETECTOR
IN LOOP DH400
(–)
RA400Z (OPTIONAL)
REMOTE ALARM LED
5 mA MAX
2.8 VDC NOM.
IN ALARM
SUPERVISORY
SWITCH
21
3
(+) IN (+) OUT
(+)
(+)
4
5
(–)
(–) IN (–) OUT
LAST DETECTOR
IN LOOP DH400
(–)
RA400Z (OPTIONAL)
REMOTE ALARM LED
5 mA MAX
2.8 VDC NOM.
IN ALARM
E
O
L
R
STYLE D OPTIONAL WIRING
UL LISTED
COMPATIBLE 2-WIRE
CONTROL PANEL
ALARM
INITIATION
LOOP
(+)
(–)
EOL RESISTOR
SPECIFIED BY
PANEL MANUFACTURER
CAUTION
Do not loop wire under terminals when wiring detectors. Break wire runs to provide system supervision of connections.
A78-2350-00
Figure 6. System wiring diagram for 2-wire duct detectors (detectors powered from initiating circuit):

System Sensor DH400 Specifications

General

Brand	System Sensor
Model	DH400
Category	Security Sensors
Language	English