AS 3510-1987

1 - AS 3510-1987 DATA COMMUNICATION-ARRANGEMENTS FOR DTE TO DTE PHYSICAL CONNECTION USING V.24 AND X.24 INTERCHANGE CIRCUITS (ISO
4 - PREFACE
5 - Contents
7 - 0 Introduction
8 - 1 Scope and field of application
8 - 2 References
8 - 3 Interconnection configurations
9 - 4 Interchange circuit requirements
9 - 4.1 Electrical characteristics
11 - 4.2 Functional characteristics
11 - 4.3 Mechanical characteristics
11 - 4.4 Interchange point cross-over characteristics
11 - 4.5 Connection options
13 - 4.6 Earthing
13 - 5 Timing alternatives
13 - 5.1 Symmetrical timing
13 - 5.2 Timing provided by one DTE
13 - 5.3 External timing
13 - 6 Use of control procedures

Describes various arrangements for the interconnection of Data Terminal Equipment (DTE) without intermediate Data Circuit-terminating Equipment (DCE), in terms of electrical, mechanical, and functional characteristics. Applies to DTEs with interface circuits standardized in CCITT Recommendation V.24 for data transmission over telephone networks or with interface circuits standardized in CCITT Recommendation X.24 for transmission over public data networks. Technically identical with ISO/TR 7477.

This Technical Report describes various arrangements for the interconnection of Data Terminal Equipment (DTE), without intermediate Data Circuit-terminating Equipment (DCE), in terms of electrical, mechanical, and functional characteristics.This Technical Report applies to DTEs with interface circuits standardized in CCITT Recommendation V.24 for data transmission over telephone networks or with interface circuits standardized in CCITT Recommendation X.24 for transmission over public data networks.The interconnections are restricted to point-to-point connections. Extension to multipoint configurations requires further study.This Technical Report applies primarily to DTEs which employ the balanced electrical characteristics of CCITT Recommendation V.11 (X.27) for data signalling rates up to 10 Mbit/s. Additionally, it may be applied to DTEs employing the unbalanced electrical characteristics of CCITT Recommendation V.10 (X.26) for data signalling rates up to 100 kbit/s and of CCITT Recommendation V.28 for data rates below 20 kbit/s. Interworking between a DTE employing V.10 (X.26) and a DTE employing V.11 (X.27) or with a DTE employing V.28 is permitted.The interconnection may be used for start-stop and synchronous transmission. For synchronous transmission, the signal element timing may be provided by either one DTE, both DTEs, or by an external signal element timing source which is inserted as intermediate equipment.