NEN EN 14908-2 : 2014
Current
The latest, up-to-date edition.
OPEN DATA COMMUNICATION IN BUILDING AUTOMATION, CONTROLS AND BUILDING MANAGEMENT - CONTROL NETWORK PROTOCOL - PART 2: TWISTED PAIR COMMUNICATION
12-01-2013
Foreword
Introduction
1 Scope
2 Normative References
3 Network Overview
4 System Specifications
4.1 General Aspects
4.2 Cable
4.3 Topology
4.3.1 Free or Bus Topology
4.3.2 Repeater
4.4 Cable Termination
4.4.1 Free-topology Segment
4.4.2 Bus Topology Segment
4.5 Segment Configuration
4.6 Power Specifications
5 Link Power
5.1 General
5.2 Source
5.3 Power Supply Requirements
5.4 Passive Coupler Circuit
6 Node Specifications
6.1 Link Power
6.2 Hot Plugging
6.3 Transmitter/Receiver Interface to the MAC Sub-Layer
6.3.1 Physical Layer Protocol Data Unit
6.3.2 Frame Format
6.3.3 Transmit Waveform
6.4 Impedance
7 Communication Parameters
Annex A (informative)
Environmental Specifications
Bibliography
Defines the control network protocol (CNP) free-topology twisted-pair channel for networked control systems in commercial Building Automation, Controls and Building Management.
| DevelopmentNote |
Supersedes NEN ENV 13154-2. (12/2005) To be read in conjunction with EN 14908-1. (05/2014)
|
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| EN 14908-2:2014 | Identical |
| UNE-EN 14908-2:2006 | Identical |
| DIN EN 14908-2:2014-08 | Identical |
| UNI EN 14908-2 : 2014 | Identical |
| I.S. EN 14908-2:2014 | Identical |
| BS EN 14908-2:2014 | Identical |
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