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Standard 639, Edition 8

Standard for Intrusion-Detection Units

UL CSDS Proposal
Standard 639, Edition 8 Edition Date: February 01, 2013
Summary of Topics b0639_8_20130201_sum.html

Subject 639

Bulletin Dated: February 1, 2013


The following changes in requirements to the Standard for Intrusion-Detection Units, UL 639, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Revision to the Input/Output Circuit Transient Test

2. For Preliminary Review Only: Revision to Instruction and Drawing requirements

3. For Preliminary Review Only: New warning for glass break detectors

Back to Standard 639, Edition 8

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