INTERCOM - 4 WIRE COMPLETE

4 wire surf/flush station-plastic use with ia543 (or pk543a) amplifier. Can also be used with ih101 or ih102 flush housing(s).the alpha communications is204 is a universal 4-wire apartment intercom station which combines modern styling with ease of operation to provide natural, clear voice communication and positive door release operation. The white, high-impact, abs plastic faceplate blends with any decor. The advanced circuitry and versatility permits use in large or small buildings, with one or several entrances.
The 2 vertical and 2 horizontal mounting holes allow the is204 to mount over a single-gang electrical back box (or mounting ring) or over the ih101 and/or ih102 flush housing(s). This unit replaces at least 2 models of existing intercom stations! With the addition of the optional model ap543 adapter plate, you can now replace 4 existing stations.