Product Specification Sheet APS178

Rev. 07/2013

RY401 All-Call Relay Adapter (SM400 Series)

This Specsheet is for a product which is discontinued. Please contact us for alternative products.
  • Easy installation
  • Surface-Mountable
  • Low-voltage operation
  • Precision engineering
  • Quick and easy plug-in replacement
Required Components
  • PK400 Power Supply
  • IR/OR Series Remote Station(s)
  • SM400 Series Master Station(s)
RY401 ALL-CALL Relay Adapter (SM400 Series)
The RY401 is an all-call (PAGING) adapter used to provide all-call capability for up to 11 master and/or remote stations when the PAGE function is selected at any master in an SM400 Intercom System. Connections to the unit are made via a 16-conductor pigtail which is supplied. The connector is color coded, with wiring designations on the unit's case. Only one (1) RY401 is needed per system, for ALL-CALL.

Height: 5.50" (140mm) Width: 3.75" (96mm) Depth: 1.19" (31mm)
Attractive, flame retardant type ABS plastic enclosure.
Wiring pigtail with 16 conductors (supplied).
11 gang-switched, normally open contacts

Architects' And Engineers' Specifications

The all-call relay adapter unit shall be Alpha Communications® / TekTone RY401 or approved equal. It shall provide 11 switched outputs to distribute audio among all master and/or remote stations in an SM400 Intercom System. The outputs shall be switched simultaneously when the PAGE function is selected on any individual master station.

The circuitry shall be housed in an attractive, flame retardant type ABS plastic enclosure. Connections shall be made using a wire pigtail (supplied), which may be unplugged to allow for quick and easy replacement.

Wire designations shall be indicated on the unit housing. Contractor shall observe all local and national electrical codes.

Alpha Communications
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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.