Wiring 2-Wire Latching Glass Break Detectors; Compatible Glass Break Detectors; Glass Break Detector Connections - ADEMCO Vista-20 Installation Instructions Manual

COMPATIBLE 4-WIRE SMOKWCOMIK.WTION DETECTORS
1412
System Sensor, 4-wire
ionization products of combustion
detector
2412
System Sensor, 4-wire
photoelectric smokedetector
2412TH
System Sensor,
4-wire photoelectric smoke detector
w/135Q F (57Q C) 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
detectorw/135Q F (579C) heat detector
Wtig 2-W- Latching Uasa Break Detectors On Zone 8
Use zone
8
for connection of compatible 2-wire latching-type glass break
detectors.
M!t.er an alarm, the first code + OFF turns off the siren and disarms the
system; the secondcode + OFT clears the memory of alarm and resets the
glassbreakdetector.
1. Connectall detectors in parallel across zone 8 (terminals 19 and 20).
Compatible Glass Break Detectors
Use detectors that meetthe followingratings:
Standby Voltage: 15VDC-13.8VDC
Standby Resistance: Greater than 20k ohms (equivalent resistance of all
detectorsin parallel)
I
Alaxm
Resietarmx ILess than l.lk ohms(seenote below)
I
Alarm
Current
2 d-lo mA
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 detectorswhich exceed l.lk ohms in alarm, provided they
maintain a voltagedrop in alarm of lessthan 3.8 volts.
GLASSBREAK
DETECTOR
I I
ZONE 8
I 0-
t
19
(+)
(-)
F-e
10. Uasa Break Detector Coune@I 'ens To ?!one 8
-24-