Refuge Call - Master Control Panel - Four Outstations

The system provides a simple means of connecting up to four remote locations to a central (master) station using an independent telephone link, continuously monitored when not in use, and utilising a battery supported power supply, to allow compliance with the relevant sections of BS5839 & BS9999.

In the simplest configuration, two handsets automatically call the other when lifted. Lifting the second handset will cancel the ringing current, and allow a normal two-way telephone conversation to take place. Replacing the handset resets the system.

Up to a maximum of 4 remote units can be used at slave positions and still be monitored. To enable the four individual call location LEDs and switches to function, each remote station is connected via a separate single pair cable. All units may conference on the line if required.

In a quiescent state, the system is monitored for power supply failure and line damage, in addition to handset removal. A volt free changeover contact is provided for remote fault reporting.

In the simplest configuration, a single pair cable is routed from the central unit to each location.

A mains powered 24-volt DC power supply, together with a monitored battery charger and system support batteries are contained in the central unit. In a quiescent state, the system is monitored for power supply failure and line damage, in addition to handset removal. A volt free changeover contact is provided for remote fault reporting. The batteries are contained in the central unit.