The OH20X series flush backbox/housing is open at the back of housing, to allow for wire entry.
Contractor shall observe all local and national electrical and building codes, and contractor shall provide a model S1 special screwdriver for future system maintenance.
The Alpha Communications® / TekTone OH20X flush series backbox / housings are made of heavy gauge galvanized steel. They are designed to be used with the OF20X series aluminum panel and master annunciator frames.
These backboxes / housings are used with a variety of apartment entry intercom and video intercom lobby panel modules, as well as nurse-call, emergency-call and specialty master annunciator modules. The OH20X series flush backbox / housing is open at the back of housing, to allow for wire entry.
NOTE: All models are 16.125"H (410mm) and 4.00"D (102mm) into finished wall. All sizes larger than OH204 are non-stocked, special-order items.