<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
Chris, I think you've got me wrong: the connector I found is the
cable side, i.e. the one we need to adapt to, not the one we could
use.<br>
<br>
In the forum you wrote & show you actually also bought one of
these to see if your modified ribbon connector will fit to it.<br>
<br>
I assume cutting off the ribbon connector box as you did cannot be
part of a manufacturing process, so I think we'll need to use an
unboxed variant -- Mark, maybe you or your manufacturer has a better
idea?<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
<div class="moz-cite-prefix">Am 19.01.26 um 10:25 schrieb Chris van
der Meijden via OvmsDev:<br>
</div>
<blockquote type="cite"
cite="mid:ce1131e1490bef6dbb49a4e9a4a7f7449857bad3.camel@arachnon.de">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style>pre,code,address {
margin: 0px;
}h1,h2,h3,h4,h5,h6 {
margin-top: 0.2em;
margin-bottom: 0.2em;
}ol,ul {
margin-top: 0em;
margin-bottom: 0em;
}blockquote {
margin-top: 0em;
margin-bottom: 0em;
}</style>
<style>pre,code,address {
margin: 0px;
}h1,h2,h3,h4,h5,h6 {
margin-top: 0.2em;
margin-bottom: 0.2em;
}ol,ul {
margin-top: 0em;
margin-bottom: 0em;
}blockquote {
margin-top: 0em;
margin-bottom: 0em;
}</style>
<div>Here some more details an my cable:</div>
<div><br>
</div>
<div><a
href="https://www.goingelectric.de/forum/viewtopic.php?p=1197786#p1197786"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.goingelectric.de/forum/viewtopic.php?p=1197786#p1197786</a></div>
<div><br>
</div>
<div>Am Montag, dem 19.01.2026 um 10:22 +0100 schrieb Chris van
der Meijden via OvmsDev:</div>
<blockquote type="cite"
style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">
<div>Hi Michael,</div>
<div><br>
</div>
<div>the connector you found looks good.</div>
<div><br>
</div>
<div>I used a 26-pin PC IDC cable and cut the box. The pitch is
2,54 mm.<br>
<br>
<a
href="https://www.goingelectric.de/forum/viewtopic.php?p=1186816#p1186816"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.goingelectric.de/forum/viewtopic.php?p=1186816#p1186816</a></div>
<div><br>
</div>
<div>It fits perfectly in the t26 socket, but sits loose. I
fixated it with an elastic band.</div>
<div><br>
</div>
<div>This works for almost 6 years now in the car, so I never
bothered to look for a better solution.</div>
<div><br>
</div>
<div>For DIY it is cheap and works well. For a more
professional, sellable, cable the VW connector seems to be
worth a try I think.</div>
<div><br>
</div>
<div>Regards</div>
<div><br>
</div>
<div>Chris</div>
<div><br>
</div>
<div>Am Montag, dem 19.01.2026 um 09:59 +0100 schrieb Michael
Balzer via OvmsDev:</div>
<blockquote type="cite"
style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">
<div> I think there is no standard male counterpart for the
T26 connector.<br>
<br>
The connector is used for other devices as well it seems,
I'm pretty confident it's VW OE part no. 7L6 972 726 A,
which is also used for the VW RNS-510 navigation system:<br>
<br>
→<a class="moz-txt-link-freetext"
href="https://kufatec.com/en/repair-kit-connector-26-pin-7l6-972-726-plug-housing-for-vw-audi-seat-skoda-rns-510/38171-1"
moz-do-not-send="true">https://kufatec.com/en/repair-kit-connector-26-pin-7l6-972-726-plug-housing-for-vw-audi-seat-skoda-rns-510/38171-1</a><br>
<br>
This connector appears to be only meant for cables to be
plugged into a custom shaped casing hole of a device,
exposing a 2x13 board pin header, with the casing providing
the mounting side for the white lock lever.<br>
<br>
So we will need to use some standard 2x13 male ribbon
connector, combined with something to suitably secure the
connection (there is no movement stress on the cable under
the seat, doesn't need to be strong).<br>
<br>
IIRC the T26 plug is also thicker than a standard ribbon
connector. Chris, did you find an extra wide boxed 2x13
connector fitting the T26 plug without cutting the box?<br>
<br>
If not we should probably better use an unboxed variant.<br>
<br>
Also, was that standard 2.54mm or 2mm pitch on the
connector?<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
</div>
<div class="moz-cite-prefix">Am 27.11.25 um 09:38 schrieb Mark
Webb-Johnson via OvmsDev:<br>
</div>
<div> <br>
</div>
<blockquote type="cite"
cite="mid:F5E8203E-64FE-4422-89F1-F5AD60E30822@webb-johnson.net"
style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">
<div>
<meta http-equiv="content-type"
content="text/html; charset=UTF-8">
I agree that tapping wires is not a good solution for
general users. Something more reversal much more
appropriate. </div>
<div><br>
</div>
<div> </div>
<div>Anyway, if someone can get me pinouts, a link to the
connector, and cable lengths, I can get talk to the
factory.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Regarding the antenna, I am a little concerned because
our certifications are limited on antenna types. In
particular I remember some clauses in there regarding not
using ‘combined’ antennas (as they void the RF testing we
did), but also limitations regarding distance between the
antenna and driver/passenger head (which we came close to
in the Tesla Roadster rear-window antenna placement).</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Regards, Mark<br id="lineBreakAtBeginningOfMessage">
<div><br>
<br>
<blockquote type="cite"
style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">
<div> </div>
<div>On 26 Nov 2025, at 4:50 PM, Chris van der Meijden
via OvmsDev <a class="moz-txt-link-rfc2396E"
href="mailto:ovmsdev@lists.openvehicles.com"
moz-do-not-send="true"><ovmsdev@lists.openvehicles.com></a>
wrote:</div>
<div> <br class="Apple-interchange-newline">
</div>
<div>
<meta charset="UTF-8">
<div
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">That
seems the best approach to me too for a
prefabricated cable.</div>
<div
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><br>
</div>
<div
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">I
hope somebody can provide the exact lengths for
the cables, otherwise it is going to be guesing by
rough meassuring the distances in the car.</div>
<div
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><br>
</div>
<div
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Am
Mittwoch, dem 26.11.2025 um 09:20 +0100 schrieb
Michael Balzer via OvmsDev:</div>
<br>
<blockquote type="cite"
style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">
<div> </div>
<div>My 2 cents:<br>
<br>
I think tapping into wires (variant 2 / footwell
panel) isn't something we should suggest /
encourage users to do.<br>
<br>
A regular user is perfectly capable of
unmounting the passenger seat and plugging in
prefabricated connectors. That also is easily
reversible, and using the original antennas for
the OVMS is really neat as well.<br>
<br>
So I'd vote for variant 1 (combined with OBD),
with a long cable to mount the OVMS module in
the front left near the OBD connector (i.e. not
replacing the OCU under the passenger seat), and
the kit for that could/should include the Fakra
antenna plug/adapter with antenna cables of the
appropriate length to connect to the module in
the front.<br>
<br>
@Mark: for clarification, this image shows a
very short T26 connection meant to place the
OVMS under the passenger seat near the T26
connector, replacing the OCU:<br>
<br>
<img
src="https://docs.openvehicles.com/en/latest/_images/DSC00373_1024.JPG"
width="477" height="267"
moz-do-not-send="true"><br>
<br>
This does not apply when mounting the module in
the front near the OBD port.<br>
<br>
Taking +12V from the OBD port, the T26
connection cable then only needs to connect GND
and CAN-L, CAN-H of the T26 connector:<br>
<br>
<img
src="https://docs.openvehicles.com/en/latest/_images/T26a-Pins.jpg"
width="483" height="341"
moz-do-not-send="true"><br>
<br>
This image shows the vehicle side of the T26
connector, i.e. the OVMS cable needs to be
plugged into that.<br>
<br>
It would be nice if the OVMS plug could also be
secured by using the white lock lever shown,
that's what Chris intends by using some original
T26 part for this. Maybe there are compatible
connectors available, but other ways to secure
the connection would also be OK.<br>
<br>
Can't help with the cable lengths needed for a
proper installation, I still haven't done that
connection other than by a flying CAT5 cable for
re-engineering…<br>
<br>
Regards,<br>
Michael<br>
<br>
<br>
</div>
<div> </div>
<div class="moz-cite-prefix">Am 26.11.25 um 08:15
schrieb Chris van der Meijden via OvmsDev:<br>
</div>
<div> </div>
<div><br>
</div>
<div> <br>
</div>
<blockquote type="cite"
cite="mid:80b45a01283ee435cb54ee99ee3b518d260009f5.camel@arachnon.de"
style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">
<div> </div>
<div>Hi Mark,</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>as I started the e-Up OVMS project years
ago my first approach was the T26 cable. The
reason for that more complicated cable was
that with the direct connection to CAN3, I was
able to get write access for i.e. climate
control.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>My way to do so was replacing the VW TCU
under the passenger seat and connect to the VW
T26 connector there (hence the name T26). </div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>As the project developed the direct ODB
access was added by other very capable
developers to gain more data from the car. So
we ended up with 4 cables. T26 alone, ODB
alone, ODB + T26 under the passenger seat, ODB
+ T26 at the passenger footwell panel.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>T26 alone and ODB alone have only
historical value, so there needs to be a
decission, if you want to make the hybrid
cable for under the passenger seat or at the
passenger footwell panel.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>The advantage of the "under the seat" cable
is, that you can use the GPS and GSM antenna
of the car. Disavantage is, the you have to
struggle with the seat. The "footwell" cable
is much easier to install, but OVMS will need
extra antennas for GPS and GSM.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>I would suggest, that the decission about
what cable to make should be discussed here
briefly first.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Then someone will probably be able to
provide the length of the cable.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Information on the connector, wire type and
pinouts are in the documentation. The
connector is a workaround as we were not able
to find the original female T26 plug. But
perhaps things has changed and somebody has
more information on that now.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Hope this is of some help.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Regards</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Chris </div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Am Mittwoch, dem 26.11.2025 um 10:49 +0800
schrieb Mark Webb-Johnson via OvmsDev:</div>
<div> </div>
<div><br>
</div>
<div> <br>
</div>
<blockquote type="cite"
style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex">
<div> </div>
<div>We’ve had some enquiries regarding making
a standard OVMS cable T26 for VW eUP, Skoda
E IV, and Seat MII electric.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>From my understanding, the cable is
variant 1 described here:</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div><a
href="https://docs.openvehicles.com/en/latest/components/vehicle_vweup/docs/index.html"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://docs.openvehicles.com/en/latest/components/vehicle_vweup/docs/index.html</a><br>
</div>
<div> </div>
<div><a
href="https://docs.openvehicles.com/en/latest/components/vehicle_vweup/docs/index_t26.html"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://docs.openvehicles.com/en/latest/components/vehicle_vweup/docs/index_t26.html</a></div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>If there anybody here knowledgeable about
this, that could help specify the cable
exactly? Things like:</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>
<ol class="MailOutline"
style="margin-top: 0em; margin-bottom: 0em;">
<li>Exact T26 connector</li>
<li>Length of each cable segment</li>
<li>Cable wire type</li>
<li>Pinouts</li>
</ol>
<div><br>
</div>
</div>
<div> </div>
<div>Preferable somebody who has already done
it and can document exactly what they have.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Also presumably this requires unplugging
the existing OCU, and what is the impact of
that?</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>Regards, Mark.</div>
<div> </div>
<div><br>
</div>
<div> </div>
<div>_______________________________________________<br>
</div>
<div> </div>
<div>OvmsDev mailing list<br>
</div>
<div> </div>
<div><a
href="mailto:OvmsDev@lists.openvehicles.com" moz-do-not-send="true"
class="moz-txt-link-freetext">OvmsDev@lists.openvehicles.com</a><br>
</div>
<div> </div>
<div><a
href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev"
moz-do-not-send="true"
class="moz-txt-link-freetext">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a><br>
</div>
<div> </div>
</blockquote>
<div> </div>
<div><br>
</div>
<div> </div>
<div><span></span></div>
<div> </div>
<div><br>
<fieldset class="moz-mime-attachment-header"></fieldset>
</div>
<div> </div>
<pre style="margin: 0px;">_______________________________________________</pre>
<div> </div>
<pre style="margin: 0px;">OvmsDev mailing list</pre>
<div> </div>
<pre style="margin: 0px;"><a
class="moz-txt-link-abbreviated moz-txt-link-freetext"
href="mailto:OvmsDev@lists.openvehicles.com"
moz-do-not-send="true">OvmsDev@lists.openvehicles.com</a></pre>
<div> </div>
<pre style="margin: 0px;"><a
class="moz-txt-link-freetext"
href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev"
moz-do-not-send="true">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a></pre>
<div> </div>
</blockquote>
<div> </div>
<div><br>
</div>
<div> </div>
</blockquote>
<div
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><br>
</div>
<div
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><span></span></div>
<span
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;">_______________________________________________</span><br
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">
<span
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;">OvmsDev
mailing list</span><br
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">
<a href="mailto:OvmsDev@lists.openvehicles.com"
style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"
moz-do-not-send="true"
class="moz-txt-link-freetext">OvmsDev@lists.openvehicles.com</a><br
style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">
<a
href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev"
style="font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"
moz-do-not-send="true"
class="moz-txt-link-freetext">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a></div>
<div> </div>
</blockquote>
</div>
<br>
</div>
<div> <br>
<fieldset class="moz-mime-attachment-header"></fieldset>
</div>
<pre>_______________________________________________</pre>
<pre>OvmsDev mailing list</pre>
<pre><a
class="moz-txt-link-abbreviated moz-txt-link-freetext"
href="mailto:OvmsDev@lists.openvehicles.com"
moz-do-not-send="true">OvmsDev@lists.openvehicles.com</a></pre>
<pre><a class="moz-txt-link-freetext"
href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev"
moz-do-not-send="true">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a></pre>
<div> </div>
</blockquote>
<div> <br>
</div>
</blockquote>
<div><br>
</div>
<div><span></span></div>
<div>_______________________________________________<br>
</div>
<div>OvmsDev mailing list<br>
</div>
<div><a href="mailto:OvmsDev@lists.openvehicles.com"
moz-do-not-send="true" class="moz-txt-link-freetext">OvmsDev@lists.openvehicles.com</a><br>
</div>
<div><a
href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev"
moz-do-not-send="true" class="moz-txt-link-freetext">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a><br>
</div>
</blockquote>
<div><br>
</div>
<div><span></span></div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre wrap="" class="moz-quote-pre">_______________________________________________
OvmsDev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:OvmsDev@lists.openvehicles.com">OvmsDev@lists.openvehicles.com</a>
<a class="moz-txt-link-freetext" href="http://lists.openvehicles.com/mailman/listinfo/ovmsdev">http://lists.openvehicles.com/mailman/listinfo/ovmsdev</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Michael Balzer * Am Rahmen 5 * D-58313 Herdecke
Fon 02330 9104094 * Handy 0176 20698926</pre>
<br>
</body>
</html>