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Recommended Wiring At The 7720PLUS
The alarm and power wires can be brought into the transmitter through the base, or through the
cover. If they are to be brought through the cover, cut out the optional wire entry port. Connect the
AC power wires from the transformer to TB 1-1 and TB 1-2, respectively. Install the battery into the
battery holder, but do not plug in the battery cable yet.
Maximum Wire Run Lengths
—7720PLUS wiring connection TERMINALS—
Mounting
Determine the best antenna location for strong radio communication with the Master Station network
using the 7715DFFAST Tool (see pages 21 - 23). Mount the 7720PLUS to a horizontal or vertical
surface, depending on the antenna used. Be sure to allow access to the programming port when
mounting. The 7720PLUS is intended to be mounted to a horizontal surface, preferably on a ceiling,
or in an attic location on top of a joist when using the supplied wire antenna. If using the 7720ANT
antenna kit, the 7720PLUS can be mounted to a vertical surface such as a wall or beam.
Powering Up
After all wiring is complete and the unit is mounted, plug the battery cable of the 7720PLUS into
the connector next to the terminal block, then apply power to theradio. The radio will rapidly flash
each LED consecutively for a total time of about 2.5 seconds. During this time, the user can configure
the radio to operate in zone mode (four zone inputs) or in ECP mode, where alarm input is received
from the control panel via the ECP interface. See "Choosing Mode" in the Programming Section.
Gauge
Distance
18
300 feet
20
200 feet
22
125 feet
– 11 –
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