AS/NZS 4162:1994

Specifies galvanic isolation of balanced interchange circuits using optocoupler integrated circuit technology and provides for data transmission in the two-condition code. This Standard is identical with and has been reproduced from ISO/IEC 9549:1990.

This International Standard specifies galvanic isolation of balanced interchange circuits using optocoupler integrated circuit technology and is provided for data transmission in the two-condition code (e.g. NRZ).The electrical characteristics are compatible with both ISO 8482 and CCITT Recommendation V.11NOTE - Compatible means to allow interoperation with devices having interchange circuits conforming to the electrical characteristics specified in the referenced standards.Annex A shows interoperation with CCITT Recommendation V.11 interchange circuits in a point-to-point environment.The specifications are given in terms of parameters and measurements for an isolated generator and an isolated receiver. These components may be used in twisted pair 2-wire or 4-wire point-to-point connections up to 1 000 m or multipoint connections up to 500 m for speeds up to 2 Mbit/s for point-to-point connections and 1 Mbit/s for multipoint connections. For data signalling rates up to 20 kbit/s, device manufacturers may optimize their component design.Options are provided to meet special application requirements, such as - isolated generator high impedance control: - isolated receiver circuit failure detection capability; - line termination in point-to-point configuration.This International Standard does not describe a complete equipment interface in terms of mechanical, electrical and functional/procedural specifications.

First published as Joint Standard AS/NZS 4162:1994.