Wiring 2-Wire Latching Type Glass Break Detectors On Zone 8; Figure 9. Glass Breiik Detector Connections To Zone 8 - ADEMCO Vista-20HW Installation Instructions Manual

.
.
I
+
COMPATIBLE 4-WIRE SMOICWCOMBUSTION DETECTORS
1412 System Sensor, 4-wire ionization m'oducts of combustion
detector
2412
System Sensor, 4-wire photoelectric smoke detector
2412TH System Sensor, 4-wire photoelectric smoke detector
w/135QF (57QC) heat detector
A77-716B System Sensor, EOL relay module (supervisory module for
wired 4wire fire zone).
2112/24T System Sensor low-profile 4-wire photoelectric smoke
detector w/135QF (57QC) heat detector
Whing 2-Wire Latching Glass Break Detectors On Zone S
Use zone 8 for connection of compatible 2-wire latching-type glass break
detectors.
After an alarm, the first code + OFF turns off the siren and disarms the
system; the second code + OFF clears the memory of alarm and resets the
glassbreak detector.
1. Connect all detectors in parallel across zone 8 (terminals 19 and 20).
Compatible Glass Break Detectors
Use detectors that meet the following ratings:
\Standby Voltage: 15VDC-13.8VDC
Standby Resistance: Greater than 20k ohms (equivalent resistance of all
detectors in paridlel)
I Alarm Resistance: ILess than l.lk ohms (see note below)
I
Alarm Current: 2 mA-lo d
Reset Time: Less than 6 seconds
The IEI 735L series detectors have been tested and found to be
compatible with these ratings. You can use up to fifty IEI 735L detectors,
connected in parallel.
You can use detectors which exceed 1.lk ohms in alarm, provided they
maintain a voltage drop in alarm of less than 3.8 volts.
2000 OHMS
EOLR
GLASSBREAK
DHEOTOR
IJ%TCHING TYPEGIASS
BRE4KDEIECTOR
LOOP
Figure 9. Glass Break Detector Connections To Zone S
-23-