SERIAL-CABLE-DESCRIPTION for Newton !!!!! - This is it !
From: Joerg.Syre@mni.fh-giessen.de (Jrg Syr)

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Port description Newton-serial
==============================

  8  7  6

5     4  3

   2   1

serial-Port RS-422 (direct look onto the port)

Pin description
=== ===========
1 DTR (Data Terminal Ready)
2 DSR (Data Send Ready)
3 Transmit Data - (RS-232 & RS-422)
4 Signal Ground
5 Receive Data - (RS-232 & RS-422)
6 Transmit Data + (RS-422)
7 DCD (Data Carrier Detect)
8 Receive Data + (RS-422)

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Cable: Mini-DIN 8 to D-Sub 25 Female     NULLMODEM
==================================================
(needed for direct Newton to Computer connection.
Package-downloader, Terminal-Programs, Programming NS-Basic etc.)

RS-232 D-Sub-25 female   Newton RS-422 Mini-DIN-8
description Pin   Pin description
=========== ===   === ===========
DSR  6 ******
        *
DCD  8 *********** 1 DTR

DTR  20 *********** 2 DSR

Rx  3 *********** 3 Tx (-)

Gnd  7 *********** 4 Gnd
        *
        ****** 8 Rx (+)

Tx  2 *********** 5 Rx (-)

RTS  4 ******
        *
CTS  5 *********** 7 DCD

     6 n.c.

*************************************************

Cable: Mini-DIN 8 to D-Sub 25 male     MODEM-, PRINTER-cable
============================================================
(needed for connection to externel Modem, serial Printers
or any other serial user with a D-Sub-25 female port)

RS-232 D-Sub-25 male   Newton RS-422 Mini-DIN-8
description Pin   Pin description
=========== ===   === ===========
DTR  20 *********** 1 DTR

DSR  6 *********** 2 DSR

Tx  2 *********** 3 Tx (-)

Gnd  7 *********** 4 Gnd
        *
        ****** 8 Rx (+)

Rx  3 *********** 5 Rx (-)

DCD  8 *********** 7 DCD

     6 n.c.

RTS  4 ******
        *
CTS  5 ******

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BTW.: A happy new year to all Newton-Users

------------------------------------------------------------
Joerg Syre
Rodheimer Strasse 27
D-35398 Giessen
Germany
Tel. +49 641 68287
Fax +49 641 68287
e-mail Joerg.Syre@mni.fh-giessen.de
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