UL 1635 Standard for Digital Alarm Communicator System Units Revised

burglar alarm photo

UL has announced a new edition of UL 1635, which applies to “digital alarm communicator system units.” The new edition can be purchased on UL’s website.


“These requirements cover digital alarm communicator system units for use in central-station burglar-alarm systems, proprietary burglar alarm systems, police station connect burglar-alarm systems, residential burglar-alarm systems, residential fire warning systems, and home health care medical alert systems.”

*Description from the UL website.

Photo by ell brown