Installing Alarm Indicating Devices To The Alarm Output; Figure 15-1: Wiring Polarized Fire Indicating Devices - ADEMCO VISTA-128B Installation And Setup Gude

Installing Alarm Indicating Devices to the Alarm Output

Be sure to follow the proper guidelines below, depending on whether the system is installed
in a UL or Non-UL application.
Compatible Alarm Indicating Devices
U L
Use only UL Listed sounding devices for UL installations
Model Number
719
747
AB12
System Sensor MA 12/24D
System Sensor P12575
Wheelock AS-121575W
UL985 Household Fire or Combination Household Fire/Burglary Installations
For installations, which must provide UL Listed protection, the total current drawn from the
alarm output, auxiliary power output, and polling loop combined, must not exceed 750mA in
order to comply with the battery independence requirements. If, for example, two System
Sensor PA400 piezo alarm sounders, wired in parallel, are used (24mA total), then 726mA
(750mA – 24mA) is available for auxiliary output and polling loop use.
This control complies with National Fire Protection Association (NFPA) requirements for temporal
U L
pulse sounding of fire notification appliances.
Wire polarized fire-indicating devices to the alarm output as shown in Figure 15-1.
1 2
+
BELL
HORN

Figure 15-1: Wiring Polarized Fire Indicating Devices

Device Type
Compact Outdoor Siren
(not UL Listed)
Indoor Siren
Grade A Bell
Fire Piezo Horn
Fire Horn/Strobe
Fire Horn/Strobe
3 4 5 6 7
+
-
ALARM SOUNDER OUTPUT 10VDC - 13.8VDC
1.7A maximum
-
Section 15 – External Sounders
Requires Polarizing Diode
Yes
Yes
Yes
No
No
No
8
15-3