System Sensor PDRP-1001 Series - Manual (Page 18)

2. Installation Initiating Device Circuits
18
PDRP-1001 Instruction Manual PN 50734:D0 04/06/01
Initiating Device Circuits
The control panel provides four (4) Initiating Device Circuits (#1, #2, #3 and #4) and they may be
configured as either Style D (Class A) or Style B (Class B).
Initiating devices include: Heat, Photoelectric and Ionization type detectors, Manual Pull Stations and
Waterflow alarm devices.
Note: Refer to the "Appendix B: Compatible Devices" on page 39 for compatible devices.
• Wire all alarm initiating devices sequentially for proper supervision.
• Observe polarity when connecting polarized devices.
• All circuits are supervised and power-limited.
• Leave dummy load resistor (provided) on all unused circuits.
Figure 7 Initiating Device Circuits
Style D (Class A)
Initiating Device
Circuit
Style B (Class B)
Initiating Device
Circuit
Style B (Class B)
Supervisory
Circuit
PA
R
3
-i
d
c
.c
d
r
Note: Silk screen printing on circuit board moved to bottom for clarity
4.7K, 1/2-Watt ELR
PN 71252
(UL listed)
Normally Open
Waterflow
Devices
Normally Open
Tamper or
Pressure
Switches
Heat
Detector
Two-wire
Smoke
Detector
Manual
Pull Station
Style B (Class B)
Initiating Device
Circuit