ADEMCO Vista-128FB Setup Guide Page 24

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VISTA-128BP/VISTA-250BP Installation and Setup Guide
3-4
Addressing the Keypads
The keypads will not operate until they are
physically addressed and enabled in the
system's
Device Programming
in the
#93
Menu Mode
.
Set each keypad for an individual address (00-30)
according to the keypad's instructions. Set an alpha
keypad for address 00 and other keypads for higher
addresses (00 and 01 are enabled in the system's
default program). Any keypads set for address 02 and
above will appear blank until they are enabled in the
system's program. Each keypad must be set for a
different address.
Do not set any keypads to address 31
(nonaddressable mode). They will interfere
with other keypads (as well as other devices)
connected to the keypad terminals.
If an OC or OPEN CIRCUIT message is
present on a keypad, data from the control is
not reaching the keypad. Check your wiring.
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.
+
+
678 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-128BP/VISTA-250BP 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.
U
L
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.
U
L
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 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.
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