Installation manual

Esprit 748+ 3
Part 2: INSTALLATION
2.1 Location & Mounting
Remove the printed circuit board, mounting hardware and keypad from the packaging inside the panel box. The circuit board
should not be mounted into the back of the cabinet, until all cables are pulled into the cabinet and prepared for connection. Before
mounting the cabinet, push the five white nylon-mounting studs into the back of the cabinet. Select an installation site that is not
easily accessible to intruders. Leave at least 2" around the panel box to permit adequate ventilation and heat dissipation. The
installation site should be dry and close to an AC source, ground connection and telephone line connection.
WARNING: THIS EQUIPMENT MUST BE INSTALLED AND MAINTAINED BY QUALIFIED SERVICE PERSONNEL
ONLY.
2.2 Earth Ground
Connect the zone and dialer ground terminals from the control panel to the metallic
enclosure and cold water pipe or grounding rod as per local electrical codes. For
UL and cUL warnings, refer to the Warnings section.
For maximum lightning protection use separate earth grounds for
the zone and dialer grounds (see Figure 1)
2.3 Power
2.3.1 AC Power
Use a 16.5Vac (50-60Hz) transformer with a MINIMUM 40VA rating to provide sufficient AC
power (aux outputs = 500mA each); RECOMMENDED 75VA rating to provide maximum
power output (aux outputs = 1A each). Do not use any switch-controlled outlets to power the
transformer. For UL and cUL warnings, refer to the Warnings section.
Do not connect the transformer or the back-up battery until all wiring is
completed
2.3.2 Back-up Battery
We recommend connecting a back-up battery to power the control panel, in case of power loss. Use
a 12Vdc 4Ah / 7Ah rechargeable acid/lead or gel cell battery. Connect the back-up battery after
applying the AC power. When installing the battery, verify proper polarity, as reversed connections
will blow the battery fuse. Connect the "red" battery lead to the positive battery terminal, and the
"black" battery lead to the negative battery terminal of the control panel. Use the Battery Charge
Current Jumper on the PCB to determine the charging current of the backup battery. With the jumper
ON, the charging current will be set at 350mA. With the jumper OFF, the charging current will be set
at 700mA.
2.3.3 Auxiliary Power Terminals
The auxiliary power supply terminals can be used to power motion detectors, keypads, and other modules or accessories in the
security system. A fuseless sircuit protects the auxiliary output against current overload and automatically shuts down if the
current exceeds 1.1A. If this occurs, the MAximum Auxiliary Current failure will appear in the keypads’ Trouble Display (see page
43). Therefore, the combined current consumption of devices connected to each of the auxiliary power supply should not exceed
700mA. If the auxiliary output is overloaded and is shutdown, you must disconnect all loads from the output for at least 10
seconds before reconnecting any load back to the auxiliary output. The maximum available current of the 748+ is 1.7A. So if the
Figure 1
Figure 2
Figure 3