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VISTA-50P/VISTA-50PUL Installation and Setup Guide

3-4

Installing External Sounders

The VISTA-50P/VISTA-50PUL provides a bell circuit

output for operating fire and burglary alarm

notification appliances. The alarm output is rated as

follows: 10VDC – 14VDC, 1.7A max, power-limited.

• For Household Fire and combination

Household Fire/Burglary installations, the

total current drawn from the auxiliary power,

polling loop, and alarm output combined

must not exceed 750mA.

• For Household Burglary installations, the

total current drawn from the alarm output

must not exceed 1.7A. A battery must be

installed, as it supplies the current for the

combined auxiliary power, polling loop, and

alarm output in excess of 750mA.

The output has the following options:

• Selectable for supervision.

• Selectable for confirmation of arming ding.

• Selectable to chime when entry/exit or perimeter

zones are faulted.

• Selectable for no timeout or timeout of 2-30

minutes.

Bur

lar

bell circuits must be pro

rammed for a

timeout of 16 minutes or longer.

UL985 Household Fire or Combination Household

Fire/Burglary Installations

For installations that must provide UL Listed

protection, the total combined current drawn from the

alarm output, auxiliary power output, and polling loop

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.

UL1023 Household Burglary Installations

For Household Burglary installations, the total current

drawn from the alarm output must not exceed 1.7A. A

battery must be installed, as the battery supplies

current from the combined auxiliary power, polling

loop, and alarm output in excess of 750mA.

Non-UL Installations

For non-UL installations, the total current drawn from

this output can be up to 1.7 amps. A battery must be

installed, as the battery supplies current in excess of

750mA. Up to two 719 sirens can be used wired in

parallel.

This control complies with National Fire

Protection Association (NFPA) requirements for

temporal pulse sounding of fire notification

appliances.

Alarm Output Supervision

When supervision is enabled, the VISTA-50P/VISTA-

50PUL monitors the alarm output wiring for open and

short circuit faults while the output is inactive. The

system provides a trouble indication (Zone 98) when an

open occurs; or when a short occurs between the Bell (+)

and Bell (-) terminal wiring, or between the Bell (+)

terminal wiring and earth ground.

The VISTA-50P/VISTA-50PUL indicates the trouble

condition regardless of whether the system is armed or

disarmed. The zone displays on the keypads, reports to

the event log, and transmits to the central station (if

programmed) on Partition 1. The Contact ID event code

is 321, Bell Trouble. The trouble is cleared from the

display by entering the user code + OFF.

Wiring the Alarm Output

The wiring of the alarm output depends upon whether

you are going to supervise the output or not. Use the

appropriate procedure below for your application.

Use only UL Listed sounding devices for UL

installations.

Compatible Alarm Indicating Devices

Model Number Device Type Polarizing

Diode

719 Compact Outdoor Siren

(not UL Listed)

Yes

747 Indoor Siren Yes

AB12 Grade A Bell Yes

System Sensor

MA 12/24D

Fire Piezo Horn No

System Sensor

P12575

Fire Horn/Strobe No

Wheelock

AS-121575W

Fire Horn/Strobe No

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 111 112

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ADEMCO Vista-50 Guide d'installation Page 16

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