SilentKnight SD500-PS Addressable Pull Station - Manual

P/N 151177
SD500-PS/SD500-PSDA
Addressable Fire Pull Station
Installation Instruction
The SD500-PS/PSDA is an addressable fire pull
station. The SD500-PS/PSDA is a normally
open initiating point compatible with Silent
Knight Addressable control panels. The SD500-
PS/PSDA is designed for indoor use in non-
explosive environments. Used to activate a non-
coded alarm instantly.
An on-board status LED is visible from the front
of the pull station. The LED flashes to indicate
proper communication with the FACP
(approximately every 30 seconds).
Specifications
Operation
To activate the fire pull station:
1. Grab the top of the pull station where it is
labeled “PULL”.
2. Pull the cover plate out and down.
To reset the pull station:
1. Insert key into the lock.
2. Turn the key clockwise.
3. Close the cover plate.
4. Turn the key counter clockwise.
Wiring to the SD500-PS/PSDA
Wire the SD500-PS as shown in Figure 1.
Figure 1: Fire Pull Station Wiring
Mounting the SD500-PS/PSDA
The pull station mounts to a standard single gang
electrical switch box or a surface mount back
box P/N PS-SMBB (sold separately). See Figure
2.
Parameter Rating
Max. Line resistance 50 Ω
Max. Alarm
Current One device in
alarm 23mA. 46
mA for two
devices in alarm. .5 mA for each
additional device in
alarm.
Max. Voltage 33 V
Operating Temperature 0° to 49° C
(32° to 120° F)
Dimensions 5-1/8” H x 3-1/16” W x 1.5” D
Supervised
Power Limited