ADEMCO Security System VISTA-15CN Guide d'installation Page 21

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Section 3 - Installing Remote Keypads
3–3
Make connections directly to the screw terminals as shown in Figure 7. Make no connection to the
keypad blue wire (if present).
Be sure to connect the negative (–) terminal on the Power Supply unit to terminal 4 (AUX ) on the
control.
+
+
456 7
SUPPLEMENTARY
POWER SUPPLY
CONTROL TERMINAL STRIP
AUX.
AUX. DATA
IN
DATA
OUT
IMPORTANT:
MAKE THESE
CONNECTIONS
DIRECTLY TO
SCREW
TERMINALS AS
SHOWN.
TO KEYPAD RED WIRE
TO KEYPAD BLK WIRE
TO KEYPAD YEL WIRE
TO KEYPAD GRN WIRE
TO KEYPAD BLK WIRE
TO KEYPAD RED WIRE
TO KEYPAD GRN WIRE
TO KEYPAD YEL WIRE
Figure 7. Using a Supplementary Power Supply for Keypads
Preliminary Checkout Procedure
To verify that the system is working before connecting field wiring from zones and devices, do
the following:
1.
Temporarily connect a 2000-ohm end-of-line resistor across each of the basic hardwired
zones 1–6, as shown in the VISTA-15/VISTA-15CN Summary of Connections diagram.
Without actual zone wiring or
EOL resistors
connected, the keypads will not display the
READY
message.
2.
Power up the system temporarily by plugging the AC transformer (previously wired to
the control) into a 120VAC outlet.
Busy
Standby (on alpha keypads) or dI (on fixed-word keypads) is displayed.
3.
Wait approximately 1 minute. At that time, the green READY LED (or POWER LED on
some types of keypads) should light, and the word READY (on fixed-word keypads), or
DISARMED...READY TO ARM
(on alpha keypads) should be displayed.
To bypass the 1-minute delay, press
[#]
plus
[0].
If the
READY
display does not appear on any of the keypads in the system, or a
NOT
READY
message is displayed, check the keypad wiring connections, and make sure each of
the 6 basic hardwired zones has a 2000 ohm resistor connected across its terminals.
When
READY
is displayed on the keypad(s), the system is functioning properly.
Do not remove the EOL resistors until you are ready to make connections to the hardwired
zones, to allow for testing later in the manual.
If an OC or OPEN-CIRCUIT message is displayed on the keypad, data from the control is not
reaching the keypad. Check the wiring.
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