DS/TBR 2:1997#

Attachment requirements for Data Terminal Equipment (DTE) to connect to Packet Switched Public Data Networks (PSPDNs) for CCITT Recommendation X.25 interfaces at data signalling rates up to 1920 kbit/s utilizing interfaces derived from CCITT Recommendations X.21 and X.21 bis


Status:
Current
Type:
Standard
Language:
Price from:
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Scope

This Technical Basis for Regulation (TBR) specifies the technical characteristics (electrical and mechanical interface requirements) and access control protocol to be provided by packet mode terminal equipment intended for connection to a dedicated interface of a Packet Switched Public Data Network (PSPDN) using CCITT Recommendation X.25 [1], [2] and [3] making use of Link Access Procedure Balanced (Modulo 8 operation) (LAPB) and Link Access Procedure Balanced (Modulo 128 operation) (LAPB Extended) modes of operation.

Number of pages: 248

Published: 1998-10-28

Date of approval: 1997-11-06

ICS: 33.040.40 - Data communication networks

Item number: 21677


Committees

Committee

  • ETSI/TT