UL 294B
Standard for Power Over Ethernet (PoE) Power Sources for Access Control Systems and Equipment

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2013-05-10DOD Approved: --
Price Code:AANSI Approved: 2013-05-10
Type:ulstd

  • SCOPE

    1 Scope

    1.1 This standard provides requirements for the evaluation of Power over Ethernet (PoE) power sources for access control systems and equipment. The power sources may be provided integral with the access control equipment or as a separate device supplying power. The equipment is intended to comply with Article 725.121, Power Sources for Class 2 and Class 3 Circuits, of the National Electrical Code, NFPA 70. Equipment covered by this standard provides a nominal source voltage of 48 or 53 V DC.

    1.2 This standard applies to all connected equipment and interconnections necessary to ensure normal operation of the PoE powered control system.

    1.3 PoE sources covered by this standard are not intended to be located in an outdoor environment.

    1.4 The PoE source shall meet the applicable requirements of the Standard for Access Control System Units, UL 294. See 2.2.4 and 2.2.5.

    Outdoor Use Equipment; Sections 70 – 81 of UL 294 inclusive are not applicable.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 General
            • 2.2 Additional documentation requirements
            • 2.3 Components
            • 2.4 Units of measurement
            • 2.5 Undated references
          • 3 Glossary
          • 4 Installation and Operation
            • 4.1 Communications circuits
            • 4.2 Location of Midspan PSE or Power Injector
            • 4.3 Cabling requirements
        • PERFORMANCE
          • 5 Abnormal Operation Tests
        • MARKING
          • 6 Marking Requirements
    • APPENDIX A
    • APPENDIX B