Unusual RS232C connector on Tatung tablet, TWN-5213 CU.

P

Peter Easthope

Guest
A photo of the unusual RS232C connector on Tatung tablet, TWN-5213 CU, is here.

http://carnot.yi.org/TatungTWN5213RS232.png

The smallest increment on the steel rule is 1 mm. The connector is essentially a socket about 20 mm x 4 mm. Centered in that is a plastic blade with 8 contacts on each side. Adjacent contacts are about 1.6 mm apart. The round hole on the left is the CPU reset.

Can anyone ID this connector? I've never seen another and haven't found it in Google Images.

Thanks, ... Peter E.
 
In article <5a3ed5bf-4b6a-43b0-ac6c-73ddebe67b3f@googlegroups.com>,
petereasthope@gmail.com says...
A photo of the unusual RS232C connector on Tatung tablet, TWN-5213 CU, is here.

http://carnot.yi.org/TatungTWN5213RS232.png

The smallest increment on the steel rule is 1 mm. The connector is essentially a socket about 20 mm x 4 mm. Centered in that is a plastic blade with 8 contacts on each side. Adjacent contacts are about 1.6 mm apart. The round hole on the left is the CPU reset.

Can anyone ID this connector? I've never seen another and haven't found it in Google Images.

Thanks, ... Peter E.
Click to expand...

You most likely need to get a break out cable that has the serial port
and other things on it.. Something that you get from the manufacturer.

Jamie
 
On 27/11/2014 04:28, Peter Easthope wrote:
A photo of the unusual RS232C connector on Tatung tablet, TWN-5213 CU, is here.

http://carnot.yi.org/TatungTWN5213RS232.png

The smallest increment on the steel rule is 1 mm. The connector is essentially a socket about 20 mm x 4 mm. Centered in that is a plastic blade with 8 contacts on each side. Adjacent contacts are about 1.6 mm apart. The round hole on the left is the CPU reset.

Can anyone ID this connector? I've never seen another and haven't found it in Google Images.

Thanks, ... Peter E.
Click to expand...

Assuming more than curiosity
Are the contacts sprung? If so then I made up something similar,
outragiously expensive proprietary otherwise, from some scrap PC-slot
card edge fingers, of right spacing. Then appropriate packing as a bit
too thin as they stood and some empty surround from a regular connector.
When you know all the contacts are good and the surround fits
registered, glue the lot together
 
In article <m57ahv$gg7$1@dont-email.me>, diverse@tcp.co.uk says...
On 27/11/2014 04:28, Peter Easthope wrote:
A photo of the unusual RS232C connector on Tatung tablet, TWN-5213 CU, is here.

http://carnot.yi.org/TatungTWN5213RS232.png

The smallest increment on the steel rule is 1 mm. The connector is essentially a socket about 20 mm x 4 mm. Centered in that is a plastic blade with 8 contacts on each side. Adjacent contacts are about 1.6 mm apart. The round hole on the left is the CPU reset.

Can anyone ID this connector? I've never seen another and haven't found it in Google Images.

Thanks, ... Peter E.


Assuming more than curiosity
Are the contacts sprung? If so then I made up something similar,
outragiously expensive proprietary otherwise, from some scrap PC-slot
card edge fingers, of right spacing. Then appropriate packing as a bit
too thin as they stood and some empty surround from a regular connector.
When you know all the contacts are good and the surround fits
registered, glue the lot together
Click to expand...

The more I think about it, being a tablet and all, I would bet that
it's the connector for the docking station.

Jamie
 
"Maynard A. Philbrook Jr." wrote in message
news:MPG.2ee0fe4c5a0f075e989b41@news.eternal-september.org...

...being a tablet and all, I would bet
it's the connector for the docking station.
Click to expand...

I thought the same thing (really!), but said nothing because it looks like an
awfully sparse interface. But you're probably right.
 
On Thu, 27 Nov 2014, Maynard A. Philbrook Jr. wrote:

In article <m57ahv$gg7$1@dont-email.me>, diverse@tcp.co.uk says...

On 27/11/2014 04:28, Peter Easthope wrote:
A photo of the unusual RS232C connector on Tatung tablet, TWN-5213 CU, is here.

http://carnot.yi.org/TatungTWN5213RS232.png

The smallest increment on the steel rule is 1 mm. The connector is essentially a socket about 20 mm x 4 mm. Centered in that is a plastic blade with 8 contacts on each side. Adjacent contacts are about 1.6 mm apart. The round hole on the left is the CPU reset.

Can anyone ID this connector? I've never seen another and haven't found it in Google Images.

Thanks, ... Peter E.


Assuming more than curiosity
Are the contacts sprung? If so then I made up something similar,
outragiously expensive proprietary otherwise, from some scrap PC-slot
card edge fingers, of right spacing. Then appropriate packing as a bit
too thin as they stood and some empty surround from a regular connector.
When you know all the contacts are good and the surround fits
registered, glue the lot together

The more I think about it, being a tablet and all, I would bet that
it's the connector for the docking station.

I was certainly going to say "how do you know it's RS232?".
Click to expand...

My netbook from five years ago didnt' have a serial port (or parallel), I
haven't noticed any tablets that mention having a serial port. I don't
see the point, they'd be used with USB devices, while a serial port would
only be useful if you had older equipment. I'd still want a serial port
on any computer I got, but I'm not "normal".

So yes, it likely a connector for something else, rather than some odd
connector for RS232.

Michael
 
On Thursday, November 27, 2014 6:21:37 AM UTC-8, Maynard A. Philbrook Jr. wrote:
The more I think about it, being a tablet and all, I would bet that
it's the connector for the docking station.
Click to expand...

The photo now shows the cover as well as the connector.
http://carnot.yi.org/TatungTWN5213RS232.png

Also the machine is illustrated here.
http://www.akori.fr/webpad_galerie.html
RS232 is marked.

The peculiar "odd connector-DE9 subminiature" is in this picture.
http://www.akori.fr/webpad_solutions.html

No doubt the function is RS232. I only wonder who made the connector.

Thanks for the replies, ... Peter E.
 
On Thursday, November 27, 2014 7:49:27 PM UTC-8, Peter Easthope wrote:
Also the machine is illustrated here.
http://www.akori.fr/webpad_galerie.html
RS232 is marked.
Click to expand...

P.s. This TWN-5213 is illustrated here.
http://www.akori.fr/eng_webpad_twn.html
The TX3000 is a similar model.
http://www.akori.fr/eng_tab.html

Regards, ... Peter E.
 
On Wednesday, November 26, 2014 8:28:41 PM UTC-8, Peter Easthope wrote:
> Can anyone ID this connector? I've never seen another and haven't found it in Google Images.

It's in the Hirose 3500 series.
http://www.hirose-connectors.com/connectors/H203SeriesCategorySearch.aspx?cat=02

The Hirose 3540-16P-CV should mate and Digikey offers it.
http://www.digikey.ca/product-detail/en/3540-16P-CV%2850%29/H11353-ND/1095670

On some models, 16 positions allowed 4 connections for Ethernet and 7 or so for RS-232. That's why the RS-232 cable and the Ethernet cables could have the same connector on one end. With the back off the machine, I might find the pinout.

Any further tips are welcome.

Thanks, ... Peter E.
 
Den 28-11-2014 14:04, Peter Easthope skrev:
On Wednesday, November 26, 2014 8:28:41 PM UTC-8, Peter Easthope wrote:
Can anyone ID this connector? I've never seen another and haven't found it in Google Images.

It's in the Hirose 3500 series.
http://www.hirose-connectors.com/connectors/H203SeriesCategorySearch.aspx?cat=02

The Hirose 3540-16P-CV should mate and Digikey offers it.
http://www.digikey.ca/product-detail/en/3540-16P-CV%2850%29/H11353-ND/1095670

On some models, 16 positions allowed 4 connections for Ethernet and 7 or so for RS-232. That's why the RS-232 cable and the Ethernet cables could have the same connector on one end. With the back off the machine, I might find the pinout.

Any further tips are welcome.
Click to expand...

Using a voltmeter and an oscilloscope and measure on the pins - that
might help identifying some of the pins.


--
Uffe
 
On Friday, November 28, 2014 8:08:38 AM UTC-8, Uffe Bćrentsen wrote:
Using a voltmeter and an oscilloscope and measure on the pins - that
might help identifying some of the pins.
Click to expand...

Thanks Uffe. Seems that is the only way. No problem removing the screws on the perimeter of the case. Still it remained locked together so firmly that opening would surely break something.

Thanks again, ... Peter E.
 
On Friday, November 28, 2014 at 8:08:38 AM UTC-8, Uffe Bćrentsen wrote:
Using a voltmeter and an oscilloscope and measure on the pins - that
might help identifying some of the pins.
Click to expand...

A Hirose 3540-16P-CV(50) and conductors were assembled to allow
a connection to the port marked RS232 on the Tatung TWN-5213 CU.
https://commons.wikimedia.org/wiki/File%3ASerial_port_on_a_Tatung_TWN-5213_CU_marked_%22RS232%22.png

The OS was configured to attempt assigment of four commonly used
(address, IRQ) pairs to COM1 .. COM4.

Addresses & IRQs COM1 COM2 COM3 COM4
{ ConfigV24.SetIRQs 3F8H 4 2F8H 3 3E8H 4 2E8H 3 ~ }
{ ConfigV24.SetIRQs 3F8H 4 2F8H 3 338H 4 238H 3 ~ }
{ ConfigV24.SetIRQs 3F8H 4 2F8H 3 3E8H 4 2E0H 3 ~ }
{ ConfigV24.SetIRQs 3F8H 4 2F8H 3 220H 4 228H 3 ~ }

The machine was booted from the CF card. According to the System.Log,
the assignments to COM1 and COM2 are accepted and the assignments to
COM3 and COM4 fail in all cases.

Invalid address on COM3
Invalid address on COM4
Serial port addr. & IRQs COM1 COM2 COM3 COM4
ConfigV24.SetIRQs 3F8H 4 2F8H 3 000H 0 000H 0 ~
Invalid address on COM3
Invalid address on COM4
Serial port addr. & IRQs COM1 COM2 COM3 COM4
ConfigV24.SetIRQs 3F8H 4 2F8H 3 000H 0 000H 0 ~
Invalid address on COM3
Invalid address on COM4
Serial port addr. & IRQs COM1 COM2 COM3 COM4
ConfigV24.SetIRQs 3F8H 4 2F8H 3 000H 0 000H 0 ~
Invalid address on COM3
Invalid address on COM4
Serial port addr. & IRQs COM1 COM2 COM3 COM4
ConfigV24.SetIRQs 3F8H 4 2F8H 3 000H 0 000H 0 ~

If a Logitech serial mouse driver is assigned to COM1 and the system
boot trace is assigned to COM2, the mouse pointer moves erratically
when the screen is touched. The scope shows no signal on any pin of
the Hirose connector.

If the boot trace is assigned to COM1 and the Logitech serial mouse
driver is assigned to COM2, the mouse pointer is unresponsive when
the screen is touched. Again the scope shows no signal on any pin
of the Hirose connector.

My conclusion from these observations is that COM1 is connected to the
touchscreen. COM2 appears to be present but non-functional. COM3 and
COM4 do not exist in the machine or they exist and are disabled by the
BIOS. Further progress appears to require information about the hardware
or access to the BIOS.

Comments welcome.

Thanks, ... Peter E.
 
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