Earth Ground Connections; Figure 4. Connection Of 4300 Transformer To The Control Board - ADEMCO Vista-20HW Installation Instructions Manual

b. Wire the other three terminals (Sync, Data, Corn) on the 43oO
transformer. Wires from these terminals must be connected to a 9-pin
connector on the control board (using a 4142TR cable supplied with the
4300 transformer), as shown in Figure 4. These particular wires can be
24 gauge or larger, and can be run along with the AC and ground wires
to the control panel.
The complete wiring for the 4300 transformer is also covered in Section 7.
RELAY OUTPUTS & POWERLINE CARRIER DEVICES.
Do
o
Earth
TERMINALS ON
CONTROL
Ill
I
UNLESS4146 Kl%tiCH AND/OR
ARMINGSTATUS INDICATORIS ALSO
USED.SEEFIG.19.
BOARD
~
NOTE ALLUNUSED WIRES SHOULD
BE CUTAND/OR TAPED.
Figure 4. Connections of 4300 Transformer To The Control Board
1. Place the 12-volt back-up battery in the control cabinet.
2. Attach Red and Black wires on the battery connector cable as follows:
a. Red to the positive (+) battery terminal on the control board (see
Summary of Connections Diagram for location, if necessary).
b. Black to the negative (-) battery terminal on the control board.
Earth Ground Connection
The designated earth ground terminal (25), must be terminated in a good
earth ground for the lightning transient protective devices in this product to
be effective. The following are examples of good earth grounds available at
most installations:
Metal Cold Water Pipe: Use a non-corrosive metal strap (copper is
recommended) firmly secured to the pipe to which the ground lead is
electrically connected and secured.
AC Power Outlet Ground. Available from 3-prong, 120VAC, power outlets
only. To test the integrity 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 electrical supply stores.
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