ISO 4903:1989 PDF
Information technology — Data communication — 15-pole DTE/DCE interface connector and contact number assignments
Information technology — Data communication — 15-pole DTE/DCE interface connector and contact number assignments
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 17
- Дата публикации:
- 12 октября 1989 г.
- Издание:
- ISO IS 4903 edition 2 version 1
- ICS:
- 35.100.10
Defines 15-pin connector and the assignment of connector pin numbers at the interface between data terminal equipment and data circuit-terminating equipment where CCITT Recommendations are considered.
Abstract
Overview
ISO 4903:1989 specifies the 15‑pole (15‑pin) used at the interface between Data Terminal Equipment (DTE) and Data Circuit‑Terminating Equipment (DCE) where CCITT (now ITU‑T) Recommendations X.20, X.21 and X.22 apply. The standard defines the connector arrangement (male DTE / female DCE), essential mating dimensions, pin numbering and pairing, latching/locking provisions and guidance for shielding and interworking with related electrical characteristics (X.26, X.27, V.28).
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