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ND+ SERIAL-CABLE-DESCRIPTION
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SERIAL.txt
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2014-12-08
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SERIAL-CABLE-DESCRIPTION for Newton !!!!! - This is it !
From: Joerg.Syre@mni.fh-giessen.de (Jrg Syr)
************************************************
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)
************************************************
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 ******
**************************************************
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
------------------------------------------------------------