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Standard for Signaling Devices for the Hearing Impaired

UL CSDS Proposal
Standard 1971, Edition 3 Edition Date: May 01, 2014
Summary of Topics b1971_3_20140501_sum.html

Subject 1971

Bulletin Dated: May 1, 2014

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Signaling Devices for the Hearing Impaired, UL 1971, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: Correction to Synchronization of Light Output

2. For Preliminary Review Only: Compatibility Documentation and Alternate Delivery Methods

Back to Standard 1971, Edition 3

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