601SB Type ‘A’ Sounder Base

The 601SB Intelligent Sounder Base provides an additional sounder function on the MZX detection circuit.

The 601SB Sounder Base may be used with or without an associated detector. When used with an associated detector, removal of any detector or loss of power to the detection circuit may cause the sounder to cease operating. When used without an associated detector, the wiring should be as shown in the alternate wiring scheme.

The 602SB Sounder Base provides eight tone and variable volume settings.

601SBD Type ‘A’ Sounder Base

The 601SBD Intelligent Diode Sounder Base provides an additional sounder function on the MZX detection circuit.
  

The 601SBD is for use in detection circuits complying with BS5839 Part 1, which requires that if callpoints are wired after detectors on a zone circuit, the removal of a detector will not affect the operation of these callpoints. The 602SBD Diode Sounder Base should be used with an associated detector. Removal of the detector should not prevent the sounder operating but will flag up a fault at the control panel.

The 601SBD Diode Sounder Base provides eight tone and variable volume settings.

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