Earth Ground; Bell/Siren Output; Auxiliary Power Terminals - Paradox Esprit 728 Installation Manual

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EARTH GROUND

The earth terminal should be connected to the cabinet and
grounding rod as per local electrical codes.
AC
Use a 16.5VAC (50-60 Hz) transformer with a minimum 40VA rat-
ing to provide sufficient AC power. Do not utilize any switch-con-
trolled outlets to power the transformer. UL listed systems require
K12 model T16V40 transformer, ULC listed systems require Frost
model FTC 1637 transformer. Warning: Do not connect trans-
former until all wiring is completed.
PROGRAMMABLE OUTPUTS
If programmable outputs are to be used, they should ideally
be connected through external relays, as these outputs
should not drive more than 50mA. A relay should be used in
cases where more than 50mA is required. (UL tested for
30mA only.)
Example: To program PGM1 to open/close an automatic
garage door when keys [3] and [6] are pressed at the same
time:
Address 195: [6] (1st digit)
Address 196: [5] [8]
Address 198: [1] [1]
Address 254: [10] [10] [1]

BELL/SIREN OUTPUT

Bells or other warning devices requiring a steady voltage output during
alarms, are powered by the Bell+/ Bell- terminals. The bell output is micro-
processor-controlled and will automatically shut down if current exceeds 3
amps. The processor will allow current to resume as soon as another
alarm is triggered. The correct polarity connections should be made when
hooking up sirens (speakers with built-in siren drivers). "Bell+" terminal is
the connection for the positive lead. "Bell-" terminal is the connection for
the negative lead. The bell output supplies 12V upon alarm. It can support
two 20-watt or two 30-watt sirens. (Above 1A, battery supplies current.)

AUXILIARY POWER TERMINALS

Motion detectors and any security devices requiring 12VDC voltage can be powered by the auxiliary
power supply. A maximum of 400mA 12VDC is available 250mA 12VDC for 24hrs standby for UL/ULC
installations is available from the AUX+ and AUX- terminals. For each additional keypad or PS1 module,
the auxiliary supply must be reduced by the corresponding keypad current consumption value. (See
"Current Consumption", page 6). The auxiliary supply is microprocessor-protected against current over-
load and automatically shuts down if current exceeds 1 amp. Auxiliary power will resume after battery test
takes place (within 1 - 60 seconds).
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