11 Aug
2014
11 Aug
'14
7:33 a.m.
Yes really. ?11, about $15 or so.
http://www.ebay.co.uk/itm/251594530679
--
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11 Aug
11 Aug
8:05 a.m.
On 8/11/14 7:33 AM, Liam Proven wrote:
Yes really. ?11, about $15 or so.
http://www.ebay.co.uk/itm/251594530679
http://www.tcp232.net/tcp-ip-to-serial-module
8:35 a.m.
On 11 August 2014 16:05, Al Kossow <aek at bitsavers.org> wrote:
On 8/11/14 7:33 AM, Liam Proven wrote:
Mmmm.. if I still had some scattered boxes with a need for serial console
http://www.tcp232.net/tcp-ip-to-serial-module/USR-RS232-to-ethernet-module.…
might be interesting...
Now I'm just as likely to pick a (non godawful) USB/serial dongle and plug
into the back of a random nearby not-quite-so-legacy box :)
Yes really. ?11, about $15 or so.
http://www.ebay.co.uk/itm/251594530679
http://www.tcp232.net/tcp-ip-to-serial-module
10:06 a.m.
Another option is the Lantronics UDS-10 / UDS-100 boxes. You can pick them up cheap on
ebay.. Plus they can emulate a basic AT command set modem..
I've made a couple of my boxes available on telnet through these, even mangled the
CP/M BYE console redirector enough to work a UDS-10 to put a CP/M bbs up on my H-89 for a
while...
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] On Behalf
Of David Brownlee
Sent: August-11-14 9:36 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Interesting cheap gadget: RS232 to TCP/IP convertor
On 11 August 2014 16:05, Al Kossow <aek at bitsavers.org> wrote:
On 8/11/14 7:33 AM, Liam Proven wrote:
Mmmm.. if I still had some scattered boxes with a need for serial console
http://www.tcp232.net/tcp-ip-to-serial-module/USR-RS232-to-ethernet-module.…
might be interesting...
Now I'm just as likely to pick a (non godawful) USB/serial dongle and plug into the
back of a random nearby not-quite-so-legacy box :)
Yes really. ?11, about $15 or so.
http://www.ebay.co.uk/itm/251594530679
http://www.tcp232.net/tcp-ip-to-serial-module
10:15 a.m.
On Aug 11, 2014, at 10:06 AM, Joe P <fast79ta at yahoo.com> wrote:
Another option is the Lantronics UDS-10 / UDS-100
boxes. You can pick them up cheap on ebay.. Plus they can emulate a basic AT command set
modem..
Or just get a Raspberry Pi and a USB serial adapter and use Jim Brain's tcpser
program.
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10:29 a.m.
On 11 August 2014 19:15, Chris Osborn <fozztexx at fozztexx.com> wrote:
Or just get a Raspberry Pi and a USB serial adapter
and use Jim Brain's tcpser program.
True, but the gadgets I linked to are less than half the price of a Ras?!
--
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10:47 a.m.
On 8/11/2014 12:29 PM, Liam Proven wrote:
On 11 August 2014 19:15, Chris Osborn <fozztexx at
fozztexx.com> wrote:
Hmm, looks like ot need to make an embedded version of tcpser on a uC
with an Ethernet port. :-)
It would be hard to beat $15, though.
Jim
--
Jim Brain
brain at jbrain.com
www.jbrain.com
Or just get a Raspberry Pi and a USB serial
adapter and use Jim Brain's tcpser program.
True, but the gadgets I linked to are less than half the price of a Ras?!
10:58 a.m.
On Mon, 11 Aug 2014, Jim Brain wrote:
On 8/11/2014 12:29 PM, Liam Proven wrote:
Just don't forget to add the IAC WILLDO ECHO patch I sent you a few years
ago. :)
g.
--
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On 11 August 2014 19:15, Chris Osborn
<fozztexx at fozztexx.com> wrote:
Hmm, looks like ot need to make an embedded version of tcpser on a uC with an
Ethernet port. :-)
Or just get a Raspberry Pi and a USB serial
adapter and use Jim Brain's
tcpser program.
True, but the gadgets I linked to are less than half the price of a Ras?!
11:25 a.m.
On Aug 11, 2014, at 10:58 AM, geneb <geneb at deltasoft.com> wrote:
Just don't forget to add the IAC WILLDO ECHO patch
I sent you a few years ago. :)
Does that make tcpser work with a regular telnet client?
--
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12:30 p.m.
On Mon, 11 Aug 2014, Chris Osborn wrote:
On Aug 11, 2014, at 10:58 AM, geneb <geneb at deltasoft.com> wrote:
Yes. I used tcpser when I put the Apple II BBS, "Age of Reason" online a
number of years ago. I discovered that if you used a normal telnet
client, it acted like you hhaadd llooccaall eecchoo oonn,, when posting
messages or doing any kind of input. I added a tiny bit of code that
would kick out the IAC WILLDO ECHO sequence on connection to prevent that.
I also extended one of the command line switches to allow you to specify
the IP address you wanted it to bind to. The host computer I was running
tcpser on had multiple ethernet cards in it.
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
Some people collect things for a hobby. Geeks collect hobbies.
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://scarlet.deltasoft.com - Get it _today_!
Just don't forget to add the IAC WILLDO ECHO
patch I sent you a few years ago. :)
Does that make tcpser work with a regular telnet client?
1 p.m.
On Aug 11, 2014, at 12:30 PM, geneb <geneb at deltasoft.com> wrote:
Yes. I used tcpser when I put the Apple II BBS,
"Age of Reason" online a number of years ago. I discovered that if you used a
normal telnet client, it acted like you hhaadd llooccaall eecchoo oonn,, when posting
messages or doing any kind of input. I added a tiny bit of code that would kick out the
IAC WILLDO ECHO sequence on connection to prevent that. I also extended one of the command
line switches to allow you to specify the IP address you wanted it to bind to. The host
computer I was running tcpser on had multiple ethernet cards in it.
I have a BBS online at http://bbs.fozztexx.com right now (which also supports dialup). If
you telnet to the port tcpser is listening on (6502), it doesn't just echo everything,
it leaves telnet in line mode so you have to push enter to select a menu item. To
compensate I run a special telnet server on port 9600 that will then connect to tcpser
using socat.
I think the other problem I had with tcpser is that it's not able to act as a telnet
client. I couldn't use it to connect to any real telnet servers, only ones that were
doing raw sockets.
Is your patch available somewhere?
--
Follow me on twitter: @FozzTexx
Check out my blog: http://insentricity.com
2:18 p.m.
On Mon, 11 Aug 2014, Chris Osborn wrote:
On Aug 11, 2014, at 12:30 PM, geneb <geneb at deltasoft.com> wrote:
That's weird. I've never had a problem with it acting like the client was
in line mode.
Yes. I used tcpser when I put the Apple II BBS,
"Age of Reason" online a number of years ago. I discovered that if you used a
normal telnet client, it acted like you hhaadd llooccaall eecchoo oonn,, when posting
messages or doing any kind of input. I added a tiny bit of code that would kick out the
IAC WILLDO ECHO sequence on connection to prevent that. I also extended one of the command
line switches to allow you to specify the IP address you wanted it to bind to. The host
computer I was running tcpser on had multiple ethernet cards in it.
I have a BBS online at http://bbs.fozztexx.com right now (which also
supports dialup). If you telnet to the port tcpser is listening on
(6502), it doesn't just echo everything, it leaves telnet in line mode
so you have to push enter to select a menu item. To compensate I run a
special telnet server on port 9600 that will then connect to tcpser
using socat.
I think the other problem I had with tcpser is that
it's not able to act
as a telnet client. I couldn't use it to connect to any real telnet
servers, only ones that were doing raw sockets.
I've done a ton of dialout with TCPSER, including testing with FidoNet v11
to see if it would talk to another mailer over the internet. Zero issues.
I don't know where the patch files are at - Jim should have them though.
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
Some people collect things for a hobby. Geeks collect hobbies.
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://scarlet.deltasoft.com - Get it _today_!
3:10 p.m.
On Mon, Aug 11, 2014 at 3:18 PM, geneb <geneb at deltasoft.com> wrote:
That's weird. I've never had a problem with
it acting like the client was
in line mode.
That's weird, because an RFC-conformant telnet implementation MUST be
in line mode unless negotiated otherwise by the appropriate telnet
option.
Once upon a time one of my responsibilities was maintenance of the
telnet code (both server and client) for a router product. I was
surprised at how many non-RFC-conformant implementations were out
there. Ah, the na?vety of youth.
12 Aug
12 Aug
6:20 a.m.
On Mon, 11 Aug 2014, Eric Smith wrote:
On Mon, Aug 11, 2014 at 3:18 PM, geneb <geneb at
deltasoft.com> wrote:
Good point.
That's weird. I've never had a problem
with it acting like the client was
in line mode.
That's weird, because an RFC-conformant telnet implementation MUST be
in line mode unless negotiated otherwise by the appropriate telnet
option.
Once upon a time one of my responsibilities was
maintenance of the
telnet code (both server and client) for a router product. I was
surprised at how many non-RFC-conformant implementations were out
there. Ah, the na?vety of youth.
It's that special "non-conforming"
conformance. :)
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
Some people collect things for a hobby. Geeks collect hobbies.
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://scarlet.deltasoft.com - Get it _today_!
11 Aug
11 Aug
11:23 a.m.
Just be aware that most of these RS-232 to whatever converters don't
deal with the full set of signals in RS-232, just the TXD, RXD and GND
signals.
Therefore hardware flow control (RTS/CTS) won't work. If you have a
vintage device, it might need hardware flow control or other signals
in RS-232 for it to function properly and these devices won't handle
that.
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1:54 p.m.
On 8/11/2014 11:23 AM, Richard wrote:
Just be aware that most of these RS-232 to whatever
converters don't
deal with the full set of signals in RS-232, just the TXD, RXD and GND
signals.
Therefore hardware flow control (RTS/CTS) won't work. If you have a
vintage device, it might need hardware flow control or other signals
in RS-232 for it to function properly and these devices won't handle
that.
I had to compensate for the outbound version of this with a serial print
buffer set to use software flow control.
never had a problem with the inbound to the device problem since none of
them handled software flow control anyway. They all worked with human
type input, and the output worked fine with the print buffer.
Input == from network / attached device to a serial port on a system.
output == data from a serial port to a network adapter or attached
buffer device.
It was easier to buy a cheap serial buffer than to write code to try to
compensate for it in the devices I was attaching.
Jim
10:02 p.m.
On Mon, Aug 11, 2014 at 08:05:15AM -0700, Al Kossow wrote:
On 8/11/14 7:33 AM, Liam Proven wrote:
Interesting. How do these thingamajiggys work, specifically what is required by
the client on the serial side?
Would it be feasible to put a PDP-8 online with these devices?
And finally, are there serial to cell network ( such as GSM, edge or 3G)?
/P
Yes really. ?11, about $15 or so.
http://www.ebay.co.uk/itm/251594530679
http://www.tcp232.net/tcp-ip-to-serial-module
12 Aug
12 Aug
6:50 a.m.
On Tue, Aug 12, 2014 at 07:02:02AM +0200, Pontus Pihlgren wrote:
And finally, are there serial to cell network ( such as GSM, edge or 3G)?
Replying to myself here, there is, in Al's link:
http://www.tcp232.net/GSM-GPRS-Modem-DTU
/P
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