System Sensor DH400P - Manual (Page 6)

D400-14-00
6
I56-554-0
5
SUPERVISORY
SWITCH
2 1
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
2 1
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 wir
e under terminals when wiring detector
s.
Br
eak wir
e runs to pr
o
vide s
y
stem supervision of connections
.
A78-235
0-00
Figur
e 6. System wiring diagram for 2-wir
e duct detectors (detectors power
ed fr
om initiating cir
cuit):