Sadly it's true that a full null cable that is wired correctly is hard
to find. I keep looking for a source and come up empty. Most places tie
the RTS/CTS lines to ground. There is always the pre-made usb to db25 on
ebay. Since a real serial port on a computer is getting harder to come
by this is a excelent choice.
http://www.ebay.com/itm/FTDI-USB-DB-25-Male-Serial-RS-232-Null-Modem-with-Full-Handshake-Cable-/151495441948?pt=LH_DefaultDomain_0&hash=item2345d4fe1c
But I believe the housing is too thick for a model 100 and would require
a 25pin gender changer trick to fit. It fits the 102 and the 200 with no
trouble.
On 7/21/2015 9:39 PM, Peter Vollan wrote:
I'm sure that Kurt' instructions are the best available, but they
assume that you are going to wire up your own cable, definitely not
for beginners. The serial port on the Model 100 is 25 pins so as well
as a null modem cable you will need a 9 pin to 25 pin adaptor.
On 21 July 2015 at 12:32, Sean Gallagher <sean.gallag...@arstechnica.com> wrote:
Thanks, Dave. I'll give that a shot.
From: M100 on behalf of David Flippo
Reply-To: Model 100 Discussion
Date: Tuesday, July 21, 2015 at 2:56 PM
To: Model 100 Discussion
Subject: Re: [M100] Recent article about Model 100 posted on Ars Technica
I have used the three wire configuration RX, TX, Gnd, and have had no
problems (RX/Tx reversed on other end)
Dave
Sent from my iPhone
On Jul 21, 2015, at 11:33 AM, Sean Gallagher
<sean.gallag...@arstechnica.com> wrote:
Hey, Kurt-
Will a standard null modem work for terminal mode in TELCOM, or do I need to
go with the pinout below? I see that's the cable used for the PC link…
From: M100 on behalf of Kurt McCullum
Reply-To: Model 100 Discussion
Date: Tuesday, July 21, 2015 at 11:52 AM
To: Model 100 Discussion
Subject: Re: [M100] Recent article about Model 100 posted on Ars Technica
Sean,
If your using TELCOM, you will need a 9-25 null modem cable. The one listed
below is a full null cable meaning the RTS/CTS and DTR/DSR pins are not
looped back. Enjoy tinkering.
7 Wire Cable
------------
PC------Model-T
DB9-----DB25
===============
2------>2
3<------3
4<------6
5--GND--7
6<------20
7------>5
8<------4
Kurt
On Tuesday, July 21, 2015 7:38 AM, Sean Gallagher
<sean.gallag...@arstechnica.com> wrote:
Thanks, John!
I'm working on a couple of things for follow-up:
Connecting via TELCOM and a null modem cable to various computers (PC, Mac,
Raspberry Pi) as a terminal, to do file transfer, etc.
Possibly doing some sort of Bluetooth-to-serial hack to connect to another
system in similar fashion as above.
Doing some dial-up (I need to order or create a modem cable, as the system I
picked up came with just a printer ribbon cable with no termination)
Spending a day doing my job from the Model 100. (Writing an article from the
field, filing it, communicating with co-workers via IRC, checking email via
some sort of gateway?).
If anyone has any tips to share on any of these, I'd appreciate the help
(and will properly credit it). :D
----
Sean Gallagher
Information Technology Editor
Ars Technica
E-mail: sean.gallag...@arstechnica.com
Twitter:@thepacketrat
phone: 312-281-5123
http://arstechnica.com/author/sean-gallagher/
PGP Public Key can be found at : https://arstechnica.com/ars-staff-pgp-keys/
On 7/20/15, 4:49 PM, "M100 on behalf of John R. Hogerhuis"
<m100-boun...@lists.bitchin100.com on behalf of jho...@pobox.com> wrote:
http://arstechnica.com/information-technology/2015/07/back-to-the-future-the-trs-80-model-100/
I noticed that author also just joined the list... welcome Sean!
-- John.
