DS/TBR 1:1997

Attachment requirements for terminal equipment to be connected to circuit switched data networks and leased circuits using a CCITT Recommendation X.21 interface, or at an interface physically, functionally and electrically compatible with CCITT Recommendation X.21 but operating at any data signalling rate up to, and including, 1984 kbit/s


Status:
Current
Type:
Standard
Language:
Price from:
€ 0.00

Scope

This TBR specifies the technical characteristics (electrical and mechanical interface requirements, and access control protocol) to be provided by terminal equipment to be connected to Circuit Switched Public Data Networks (CSPDNs) and leased circuits presented at a CCITT Recommendation X.21 [2] interface, or at an interface physically, functionally and electrically compatible with CCITT Recommendation X.21 [2] but operating at any data signalling rate up to, and including, 1984 k/bits.

Number of pages: 2

Published: 1997-09-08

Date of approval: 1997-05-12

ICS: 33.050.01 - Telecommunication terminal equipment in general

Item number: 21676


Committees

Committee

  • ETSI/TT