Xpander Connectivity Kit



#7

Hello!

Just get my own Xpander!

Nice item, but no Connectivity Cable available ;(

Can someone tell me the correct jack (I assume: 3.5 mm stereo jack like in an mp3-player) and the correct lines between this jack and the 9-pin serial-jack?

Thank you very much!

Wilhelm Loidl


#8

Hello Wilhelm,

I haven't used my Xpander Connectivity Kit, yet. But to help you I examined the original HP cable, which accompanied my Xpander, with an Ohm-meter. To my surprise it seems defect: Only the most outer layer of the stereo jack is connected to pin 5 of the DB9 connector. Pin 5 is "Signal Ground", so the other 2 segments must be "Receive Data" (Pin 2 of DB9) and "Transmit Data" (Pin 3 of DB9). I'm going to find out which signal is connected to which segment in the near future (yes, time is a big problem). You can try the same or wait until I got the result. I saw your same question at www.xpander.org so I'm going to put the answer there, too.

Hope this helps

Regards

Karl


#9

Hello Karl!

Thank you for the feedback!

I don't think, your cable is defect - maybe there is inside an optocoupler (hope, you understand my english interpretation ;)

In the next days, I'll try to connect the Xpander with an modifyed hp-49 serial-cable.

Thank you again

Wilhelm Loidl


#10

Hello!

No luck with an hp-49 cable.

No luck with an old Garmin RS232 (with optocoupler) cable.

I testet all possible pin-configurations (Pin 2,3 and 5 on the 9-pin-jack), made before every try an hardware-reset on the Xpander and changed the COM1/COM2 connection with the modifyed cables.

The Connectivity-Software was running on a Windows XP-PC (maybe this is a problem?);

The automatic search withe the original Software for an handshake with the Xpander did nothing find...

Every help is very welcome!

Wilhelm Loidl


#11

My Xpander connectivity kit works under Windows XP without problem. I am going to have a look with my voltmeter

Here we are:
9 way female D type connector
To stereo 3.5mm jack

Pin 5 to sleeve (Shield)
Pin 3 to sleeve 5kOhm

A glitch between Pin 4 and ring

I guess this doesn't really help but the serial connector is longer than usual so I guess it contains some form of electronics

Arnaud

The connector at xpander.org




Edited: 5 Nov 2005, 3:58 p.m.

#12

Hello Wilhelm,

as promised I tested my cable with the Connectivity Kit. It seems, your right, it works perfectly. In the manual I found a notice that no other cable should be used 'cause it is designed especially for the Xpander. Alas, there's no way to open the DB9 jack to look inside. Sorry, that I don't have better news for you. If you'd like to discuss the Xpander in more detail you can write me at LKL_Butte@web.de.

Regards

Karl


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