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RS-442 Intercom Switch Board


The RS-442 is a component that allow construction of custom 4-wire door stations that may be connected to an N-8400RS Sub Station Unit. It provides three momentary contact closure inputs and one open collector control output. A station microphone is included.

NOTE: If you are designing a new system, talk to your dealer or contact your Area Systems Engineer to learn about the advantages of using our 2-wire, 3-wire, and all-IP systems.
If you have an existing 4-wire system and need to replace a component, please contact your manufacturer’s representative or TOA Customer Service for availability.

Product Features

  • Switch board designed for use with the N-8400RS 4-Wire Substation Interface Unit
  • Switch panels can be created to meet intended purposes by combining the RS-142 with the separately prepared operation panel having 3 switches to be used as call buttons
  • Also can be used in connection with the RS-481 Ip Intercom Optional Handset

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