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.