ADEMCO Vista-20 Installation Instructions Manual page 19

'1 I
SUPPLEMENTARY
CONTROL
POWERSUPPLY
TERMINAL STRIP
F&ma 7. Using
A Su=)piammtarp Power Supply For Keypads
check-out
Procedura
If you want to checkthat the systemis working before connectingfield wiring
from zones and devices,do the foll-
1.
2.
3.
4.
Temporarily connecta 2000 ohm end-of-line resistor across each of the
basic hard-wire zones 1-8, as shown in the Summary of Connections
diagram.
Without actual zone wiring or EOL resistors connected,the keypads in
each partition of the systemwill not display the 'l?eadfl 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.
-r approximately 1 minute*, the green 'TtEADY" LED (or TOWER"
LED on some@es of keypads)should light, and the word
READY (Fixed-
word keypads),or
DISARMED...READY TO ARM
(Alpha keypads) should be
displayed.
* To bypassthe l-minute delay,press# plus O.
If the %eady" display doesnot appesr on any of the keypads in the system
(in either of the partitions), or a 'lNot Ready messageis displayed, check
the keypad wiring connections,and make sure each of the 8 basic hard-
wired zoneshas a 2000 ohm resistorconnectedacrossits terminals.
When you get the proper "Ready"displays on the keypad(s), the systemis
functioning properly at this point.
Do not remove the EOL resistorauntil you are ready to make connections
to the hard-wired zones,to allowfor testing later in the manual.
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