- Author
- Underwriters Laboratories, Incorporated
- Title
- Digital Alarm Communicator System Units. Second (2nd) Edition. Standard for Safety.
- Coporate
- Underwriters Labs., Inc., Northbrook, IL
- Report
- UL 1635, Second (2nd) Edition, February 21, 1991, 70 p.
- Keywords
- safety standards | communication systems | construction | performance evaluation | power suplies | manufacturing
- Identifiers
- burglar-alarm systems; intrusion detection; high voltge products; marking; accessory equipment