
12–1
SECTION 12
Final Power-Up
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In This Section
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Earth Ground Connections
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AC Power-Up
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Connecting the Backup Battery
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Battery Tests
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Earth Ground Connections
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. It also must be
grounded to enable the telephone line fault indicator to work properly. The following are
examples of good earth grounds available at most installations:
Metal Cold Water Pipe: Use a noncorrosive 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 3-wire circuit tester with neon lamp indicators, such
as the UL Listed Ideal Model 61-035, or equivalent, available at most electrical supply stores.
AC Power-Up
To turn on AC power, perform the following steps:
1. Plug the 1321/1321CN or 4300 Transformer into a 24-hour, unswitched 120VAC outlet.
Following power-up, one of the following is displayed: AC, dI (disabled); BUSY
STANDBY (alpha keypads); or NOT READY (fixed-word keypads). The green POWER
LED (or READY LED on some keypads) should light.
2. After approximately 1 minute, the initial displays revert to DISARMED...READY TO
ARM for alpha keypads, or READY for fixed-word keypads (if there are no faulted zones).
This 1-minute delay allows PIRs, etc. to stabilize.
To bypass this delay, press: # + 0.
Connecting the Backup Battery
In the event of an AC power loss, the control panel is supported by a backup, rechargeable
Sealed Lead Acid battery. The range of battery sizes recommended are: 12VDC; 4AH-
17.2AH. See
"Calculating the Battery Size Needed"
below. The battery is installed in the
control cabinet.
U
L
Use a 4AH battery or larger for UL installations. Refer to
next page to calculate the actual battery
size needed.
The standby battery is automatically tested every 4 hours, beginning 4 hours after exiting
Programming mode. In addition, entry into the Test mode causes a battery test to be
initiated.
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