RC Systems ST-72, Instruction Manual

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ST-72 User's Manual
Document: UM-1007 Revision Level A
10
*220-240VAC @ 1.6A max
* A slide switch on the front of the power supply selects AC input range.
The 10-0172 150 watt power supply (Figure 3-7) is for powering the ST-72 and up to 64
detectors.
1.4.1.3 RELAYS
The ST-72 comes standard with five Standard SPDT 5A relays, consisting of one
dedicated HORN and one dedicated FAULT relay plus 3 programmable alarm relays.
Programmable relays provide voting logic for ALARM 1, ALARM 2, and ALARM 3.
Discrete relays and additional Programmable relays are optional. All relays are rated at
5 Amp for 28 VDC and 250 ~VAC
RESISTIVE loads.
IMPORTANT : Appropriate diode (DC loads) or MOV (AC loads) snubber devices
must be installed with inductive loads to prevent RFI noise spikes. Relay wiring should
be kept separate from low level signal wiring.
1.4.2 AMBIENT TEMPERATURE RANGE
-25 to 60 degrees C
1.4.3 HUMIDITY RANGE
0 TO 90% R. H. Non-Condensing.
1.4.4 ALTITUDE
Recommended up to 2000 meters
1.4.5 HOUSINGS
*General purpose panel mount weighing 7 lbs and including hardware for 19” rack
mounting (

Figure 6-1).
*NEMA 4X wall mount in fiberglass enclosure weighing 54 lbs (

Figure 6-2).
*Includes non-intrusive magnetic keypad.
1.4.6 NON-INTRUSIVE MAGNETIC KEYPAD
The ST-72 operator interface includes eight front panel touch keys
Menu
/
Alarm
Reset
/
Next
/
Edit
/ / / / . A magnetic keypad option offers these eight keys with adjacent
!