Product Specification Sheet APS009

Rev. 09/2013

AP777 and AP777B Steel Adapter Plate (painted White)

AP777 Adapter Plate Shown
Architects' And Engineers' Specifications
The adapter plate(s) shall be Alpha Communications® Model AP777 (or AP777B) or approved equal and shall be large enough to cover the area occupied by the previous intercom unit. The adapter plate shall be made of 22 gauge cold-rolled steel, painted in a White powder coat paint finish. The adapter plate(s) shall be punched to cover the existing back box, and for the apartment intercom (or videointercom) station to be mounted onto the adapter plate(s). If required, contractor shall paint the adapter plate(s) to match the existing wall finish.
Important Note
Since these adapter plates can be used with a variety of stations and devices, we cannot guarantee a color match between the stations and these adapter plates!
AP777 and AP777B Adapter Plates

The Alpha Communications® AP777 and AP777B adapter plates are designed specifically to cover existing over-sized apartment intercom back boxes and other existing wall openings.

Once the adapter plate is affixed to the wall, you can install your open-voice or handset apartment intercom station or surface mount video-intercom station directly onto the adapter plate.

The model AP777 features two (2) mounting holes 10.50" (267mm) on-center, top-to-bottom, to enable you to easily mount the plate over an existing 777 series flush back box. In addition, the model AP777 also features a large (center) hole for wire access and four (4) pre-punched holes for mounting common apt. intercom stations and handsets.

Installation is quick, easy, attractive and eliminates the need for plastering and painting over the existing hole.

Model AP777B is the same as the AP777, except there are no mounting holes on the front of the faceplate. This enables you to punch or drill any special holes you may need, or to leave the faceplate totally blank.

Custom-sized adapter plates are also available in aluminum, stainless steel, polished brass, or other painted finishes. Please send a detailed sketch to our sales dept., along with the quantity needed, for a prompt quotation.


  • Heavy Duty 22 Gauge Cold-Rolled Steel Faceplate
  • Easy Installation with pre-punched holes
  • Decorator White Color
  • High Quality Powder Coat Painted Finish
  • Rugged and Good-Looking
  • Large size neatly covers existing wall openings
  • Works with a variety of apartment intercom and video intercom stations and handsets
Options / Componenets
5.50"W (140mm) x 12.50"H (318mm) x 0.188"D (5mm).


Steel faceplate with White powder coat paint finish

Center Hole:

1.00" diameter (25mm) round hole for wire. (No holes in faceplate of model AP777B).

Alpha Communications
42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: (631) 777-5500 • Fax: (631) 777-5599
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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.