# RS422 9pin

(at the DTE)
(at the DCE)

CORRECT?

9 PIN D-SUB MALE at the DTE (Computer).
9 PIN D-SUB FEMALE at the DCE (Modem).

Pin | Name | Description
--- | --- | ---
1 |  | Shield
2 | RTS+ | Request To Send +
3 | RTS- | Request To Send -
4 | TXD+ | Transmit Data +
5 | TXD- | Transmit Data -
6 | CTS+ | Clear To Send +
7 | CTS- | Clear To Send -
8 | RXD+ | Received Data +
9 | RXD- | Received Data -

Note: Direction is DTE (Computer) relative DCE (Modem).

Contributor: Joakim Ögren

Source:
?

Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-07