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Rs422 — Parallax Forums

Rs422

ArchiverArchiver Posts: 46,084
edited 2002-09-28 01:22 in General Discussion
Is it possible to program a BS2 to communicate via RS422 without using a
RS232 converter? If not, please recommend an inexpensive converter for an
OEM application.

Thanks for the help.

Bob

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-09-27 17:06
    Does anyone have schematic on how to make a I/O pin on a basic stamp 2P into
    a RS232 Port
    thanks
    Ken Kaufman
    E-Mail: ken.kaufman@t...
  • ArchiverArchiver Posts: 46,084
    edited 2002-09-28 01:22
    > Does anyone have schematic on how to make a I/O pin on a basic stamp 2P into
    > a RS232 Port

    Did you mean RS422 (is in the subject line). If so, the following works for
    me:

    ·Mac 8 Pin RS422 port PC 9 pin D type MALE plug
    ·HSKout, 1 ·DTR, 4
    HSKin, 2 RTS, 7
    ·RX-, 5 ·RX, 2
    ·TX-, 3 ·TX, 3
    ·GND, 4 ·GND, 5

    NOTE: Ground RX+, leave TX+ floating.


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    > From: "Kaufman, Ken" <ken.kaufman@t...>
    > Reply-To: basicstamps@yahoogroups.com
    > Date: Fri, 27 Sep 2002 11:06:22 -0500
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] RS422
    >
    > Does anyone have schematic on how to make a I/O pin on a basic stamp 2P into
    > a RS232 Port
    > thanks
    > Ken Kaufman
    > E-Mail: ken.kaufman@t...
    >
    >
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