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Vista-128BPEN Installation and Setup Guide
3-4
Supplementary Power Supply for Additional Keypads
When the control’s auxiliary power load for all devices exceeds 750mA, you can power additional keypads from a
regulated 12VDC power supply (e.g., ADEMCO AD12612 (1.2A)). Use a UL Listed, battery-backed supply for UL
installations.
Connect the additional keypads as shown in
Figure 3-5
, using the keypad wire colors shown. Be sure to observe the
current ratings for the power supply used.
•
Make connections directly to the screw terminals as shown in
Figure 3-5. Make no connection to the blue wire (if
present).
•
Be sure to connect the negative (–) terminal on the power supply unit to terminal 7 (
–
) on the control.
+
–
+
6
7
8
9
SUPPLEMENTARY
POWER SUPPLY
–
CONTROL TERMINAL STRIP
AUX. AUX. DATA
IN
DATA
OUT
IMPORTANT:
MAKE THESE
CONNECTIONS
DIRECTLY TO
SCREW
TERMINALS AS
SHOWN.
RED WIRE
BLACK WIRE
YELLOW WIRE
GREEN WIRE
BLACK WIRE
RED WIRE
GREEN WIRE
YELLOW WIRE
pwr_supply-002-V0
TO
MAIN
KEYPAD
TO
SECONDARY
KEYPAD
Figure 3-5: Using A Supplementary Power Supply
Installing External Sounders
The VISTA-128BPEN 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.
UL
•
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 timeout of 2-30 minutes.
UL
Burglary bell circuits must be programmed 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 MH 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 1.7A. 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.
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