Filter
Top Products
E
D
C
B
4
5
A
3
CPG #2561255 FIRELARM 2500 Operating Manual
3-5
Figure 3-5. Four-wire detector
connections
(
St
y
le B, Class B cuircuit
4-WIRE DETECTORS
N.O. N.O. N.O.
ZONE
TERMINALS
ALL CONTACTS SHOWN IN NORMAL STANDBY CONDITION
290-0007
42
43
OUT
IN
OUT
IN
OUT
IN
EOL RESISTOR
5.1K OHM
UL LISTED RELAY
SEE APPENDIX D
FOR MODEL NUMBERS
Figure 3-4. Motherboard.