UL 294 Access Control System Units

standard by Underwriters Laboratories, 01/29/1999

Full Description

Please note: All interim revisions for this edition available at time of your purchase will be included.



1 Scope

1.1 These requirements apply to the construction, performance, and operation of systems intended to regulate or control:

a) Entry into an area or

b) Access to or the use of a device(s) by electrical, electronic or mechanical means.

1.2 These requirements apply to computer equipment that, when used in conjunction with the main control, is necessary for proper operation of the access control system. This Standard does not apply to supplementary computer equipment that is not necessary for operation of the access control system if single opens, earth ground faults or wire-to-wire shorts on the circuit connection from the computer to the access control system does not inhibit intended operation.

1.3 Deleted October 29, 2001

Product Details

Edition: 5 Published: 01/29/1999 Number of Pages: 102