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Accenta/Optima Engineer’s Manual

PCB

There are four fuses mounted on the circuit board, all are 20mm anti-surge.

F1 1.6A - to protect the positive (+Ve) line of 12V battery

F2 1A - to protect the Speaker 13V supply

F3 1A - to protect the Siren (Bell) & Strobe supply

F4 1A - to protect the RKP 13V supply

As supplied, wire links are fitted across the PA and Tamper terminals to represent a closed circuit.

Wiring the System

CAUTION: Always power down the panel when wiring external circuits to prevent damage to

the panel electronics.

Systematically wire and test each circuit:

 Zone, Tamper circuit and PA circuits

 Finish by wiring any additional extension speaker sounders, external siren (bell) / strobe and the 13V

supply.

Tamper Network

The Tamper circuit is used to protect all cables and detectors in the system from unauthorised access including

the panel and RKP covers.

The zone and PA tampers should be series wired and connected to the TAMP terminals. Terminals T and A

are for the external siren tamper. The TAMP terminals at the bottom left of the board are for the RKP

tampers.

Tamper alarms that occur in the Day mode operate internal sounders only. Tamper alarms in Set cause a full

alarm condition. Tamper is indicated on the control panel and RKPs.

Figure 4. PCB

PCB

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