15586 Rev E 5/14/93 P/N 15586:E
19
Figure 3L: Basic System Wiring Diagram
Initiating Device Circuits: Class B operation. 2.0
mA per loop. Power limited circuitry.
ELR - 2.2K, 1/4-watt (4012); 4.7K, 1/4 watt (4024)
Indicating Appliance Circuits: Class B operation. Power limited circuitry.
2.5 amps max (1.5 amps/circuit). 1.2 mA in normal. ELR = 10 K, 1/4 watt. Must
use polarized indicating appliances.
Four-wire detector power
(up to 200 mA max, refer to
Appendix D). If non-resettable
power is used, limit combined
current to 50 mA.
Dry supplementary alarm contact. Rated 2 amps @ 30
VDC and 0.5 amps @ 30 VAC (resistive).
DC power for external devices.
Power limited (see Section 3.4).
Unfiltered, unregulated, 1 amp max
(subtract from indicating circuit power).
Non-resettable
Power
(up to 50 mA max).
Subtract from Four-
wire detector power.
Refer to Appendix D.
Heat Detector
Manual Station
Smoke Detector
Plug TM or AT
module in P4
and cut JP4
Plug LI or ZR
module in P3
and cut JP3
Cut JP2 when
ammeter is
employed
Cut JP4
when TM or
AT module is
employed
Remove JP5 and JP6
then install JP7
and JP8 for normally
open supervisory
service on Zone 4.
Inhibit
latching
circuit by
removing
diode in
associated
zone:
D31 (Zone 1)
D33 (Zone 2)
D35 (Zone 3)
D37 (Zone 4)
120 VAC
60 Hz
1.2 Amps
Ground
Ground
Connect
Transformer
to P1
Battery
(4-9 amp-hour)
PS-1242 or PS-1279
Voltmeter
Zero-centered Ammeter
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