IO956I Details 950 Series Sounder Circuit Controller with Isolator (Surface Mount)

Interfaces for intelligent systems

The IO956I is designed to suit individual applications. This standard
interface is designed to be surface mounted to walls and consist of
three parts: a back box with knockouts for cable entry, a PCB
assembly and a protective front cover.

Interface with isolator

The IO956I is fitted with a bi-directional short-circuit isolator so that
they are unaffected by a single short-circuit on either loop input or

Sounder Control

The IO956 is normally used to control a zone of sounders powered by
an external DC supply. The sounders will be switched to sound
continuously or be pulsed, 1s on, 1s off.
An opto-coupled input is provided to monitor the state of the external
power supply.