Preliminary Check-Out Procedure; Figure 6. Using A Supplementary Power Supply - ADEMCO Vista-20HW Installation Instructions Manual

Figure 6. Using A Supplementary Power Supply For Keypads
. .
Pdmmmrp Check-out Procedure
If you want to check that the system is working before connecting field wiring
fi-om zones and devices, do the following:
1.
2.
3.
4.
Temporarily connect a 2000 ohm end-of-line resistor across each of the
basic hard-wire zones 1–8, as shown in the Summary of Comections
diagram.
Without actual zone wiring or EOL resistors connected, the keypads in
each partition of the system will not display the "Readfl message.
Power up the system temporarily by plugging the AC transformer ~
(previously wired to the control) into a 120VAC outlet.
Busy - Standby
(Alpha keypads) or dl (Fixed-word keypads) will be
displayed.
After approximately 1 minute*, the green 'READY' LED (or "POWER"
LED on some types of keypads) should light, and the word
READY
(Fixed-
word keypads), or
DISARM ED... READY TO ARM
(Alpha keypads) should be
displayed.
* To bypass the l-minute delay, press # plus O.
If the 'Ready" display does not appear on any of the keypads in the system
(in either of the partitions), or a "Not Ready" message is displayed, check
the keypad wiring connections, and make sure each of the 8 basic hard-
wired zones has a 2000 ohm resistor connected across its terminals.
When you get the proper 'Ready" displays on the keypad(s), the system is
functioning properly at this point.
Do not remove the EOL resistors until you are ready to make connections
to the hard-wired zones, to allow for testing later in the manual.
-18-