Product Specification Sheet APS239

Rev. 11/2013

PK502B Multi-Entrance Audio Switching Adapter

Architects' And Engineers' Specifications

The multi-entrance adapter(s) shall be Alpha Communications® / TekTone model PK502B, or approved equal. Unit(s) shall provide the control and power circuits needed to switch the audio and door release functions, to the calling entrance station. Unit(s) shall be used in addition to standard system amplifier. Low voltage wiring shall be used and a plug-in wiring harness shall be provided for installation wiring. The PK502B unit(s) shall be installed adjacent to the intercom amplifier. 

Contractor shall observe all local and national electrical and building codes.

PK502B Multi-Entrance Switching Adapter

The Alpha Communications® / TekTone PK502B multi-entrance adapters are used with our IA543PK543A, PK543, PK292A and PK205 series amplifiers only. They provide audio intercom and door release switching for two (2) to eight (8) entrances (depending on how many PK502B's are used).

The PK502B adapters are used in addition to the system amplifier, and power off of the same transformer. A plug-in wiring harness makes installation quick and easy.

You must add one (1) PK502B switching adapter to each entrance, after the first entrance, up to a maximum of eight (8) entrances (using a maximum of seven (7) PK502B units).

  • Can be used for two (2) to eight (8) entrances
  • Operates on Safe Low-Voltage Class II Wiring
  • Convenient Plug-In Wiring Harness
  • Convenient Surface Mount installation

Height: 5.50" (140mm)
Width: 3.125" (83mm)
Depth: 2.00" (51mm)

Construction: Rugged ABS White Plastic Casing
Connections: Polarized plug in type wiring harness
Mounting: Surface mount or mountable to the rear of specifically designed apartment entrance speaker panels.
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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.