Installing The Back-Up Battery; Earth Ground Connections - ADEMCO Vista-20 Installation Instructions Manual

b. Wire the other three terminals (Sync,- Data, Corn) on the 4300
transformer. Wires from these terminals must be connectedto a 9-pin
connectoron the control board (using a 4142TR cablesupplied with the
4300 transformer), as shown in Figure 5. These particular wires canbe
24 gauge or larger, snd can be run along with the AC and ground wires
to the controlpanel.
The complete
wiring
for the 4300 transformer is also covered in
Section 8.
RELAY OUTPUTS & POWERLIAW CARRIER DEVICES.
00 TRANSFORMERANTERFACE
ml
o
Earth
AC
Ground AC i
w
123
Vtt
1252
TERMINALS ON
CONTROL
BOARD
n
)
.
~
'"""""
000000000
ONm'mo,m)lr?,
1
IIIIiIiII
1
1
1 t I
I I
1
I
c
4142TRCASLE
1 I
"%-J
H"'" m-r Y
II
NOT
"--
USED
\
USSD
THESE WIRES(7,8,& 9) NOTUSED
UNLESS 4145KEW3VITCH ANDIOR
Figure 5. Connections
of
4300
Transformer To The Control Board
.
IneMhng The Back-Up Battery
If necessary, refer to
Section 14. FINAL POWER UP
for information
regarding battery size to use, etc.
L Place the 12-volt back-up battery in the controlcabinet.
2. Attach Red and Black wires on the batteqyconnectorcableas follows:
a. Red to the positive (+) battery terminal on the control board (see
Summaqy of ConnectionsDiagram for location,ifnecessary)o
b. Black to the negative (-) battery temnind on the control board.
Earth Ground
Ckmections
The designated earth ground terminal (25), must be terminated in a good
earth ground for the lightning transient protectivedevicesin this product to
be effective. The following are examples of good earth grounds available at
most installations:
Metal Cold Water Pipe: Use a non-comosive metal strap (copper is
recommended) fmly secured to the pipe to which the ground lead is
electrically connected and secured.
AC Power Outlet Ground Available born 3-prong, 120VAC, power outlets
only. To test the integri~ of the ground terminal, use a.three-wire circuit
tester with neon lamp indicators, such as the UL-Listed Ideal Model 61-035,
or equivalent, available at most electricalsupply stores.
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