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USACE / NAVFAC / AFCEC / NASA UFGS-27 51 23 (November 2021)
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Preparing Activity: NAVFAC Superseding
UFGS-27 21 00.0
0 20 (April 2006)
UFGS-27 21 00.00 40 (February 2016)
UFGS-27 51 23.10 (May 2011)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated October 2022
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SECTION TABLE OF CONTENTS
DIVISION 27 - COMMUNICATIONS
SECTION 27 51 23
INTERCOMMUNICATION SYSTEM
11/21
PART 1 GENERAL
1.1 REFERENCES
1.2 RELATED REQUIREMENTS
1.3 SYSTEM DESCRIPTION
1.3.1 Sound Reproduction
1.3.2 Video Capability
1.3.3 System Operation And Service Features
1.3.3.1 Control and Power Requirements
1.3.3.2 Call-In Indication
1.3.3.3 Identification Plates
1.3.3.4 Combination Speaker-Handset Stations
1.3.3.5 Privacy Switch
1.4 SUBMITTALS
1.5 DELIVERY, STORAGE, AND HANDLING
1.6 EXTRA MATERIALS
PART 2 PRODUCTS
2.1 MATERIALS AND EQUIPMENT
2.1.1 Standard Products
2.1.2 Product Data
2.1.3 Identical Items
2.1.4 Nameplates
2.1.5 Common Equipment Requirements
2.1.5.1 Intercommunication Amplifier
2.1.5.2 All-Call Amplifier
2.1.5.3 Power Line Surge Protection
2.1.5.4 Signal Circuit Protection
2.1.5.5 Remote Audio-Only Station
2.1.5.6 Remote Audio and Video Station
2.1.5.7 Cone-Type Loudspeakers
SECTION 27 51 23 Page 1
