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Traffic Systems and Signing - TR Specifications - equipment (EC notified) TR 2049G NMCS2 HDLC point to point communications electrical and protocol

Publication Year

2007

Document Status

Current

Abstract

One in a series of technical specifications which describe the requirements of the National Motorway Communications System Mark 2, (NMCS2) system components and their communication interfaces. Defines requirements for the High-level Data Link Control (HDLC) point to point communications link. It looks at the transmission of data across the interface and includes message protocols and electrical parameters for the link.

Document History

First published 1992. Replaces TR 2049F.

Publisher Information

Highways Agency

The Highways Agency is now known as Highways England. The new government company is in charge of operating England's motorways and major A roads, including modernising and maintaining the highways. Their publications include the Design Manual for Roads and Bridges, the Manual of Contract Documents for Road Works and Interim Advice Notes.

Publications available from:
The Stationery Office Ltd
PO Box 276
Nine Elms Lane
London
HA
UK

Website: https://www.gov.uk/government/organisations/highways-england
Email: info@highwaysengland.co.uk
Tel: 0333 202 5070