How to get a 15 pin analog output to BNC

[BW67]

Hello all,

First time posting here. 

In out lab we have a Biodex 3 (here is the new version, it is basically the same thing: http://www.biodex.com/physical-medicine/products/dynamometers/system-4-pro-0).  It can output the analog position, velocity, and torque data from the machine to be collected in other data acquisition software. 

I need to get this analog data, which comes from a 15 pin two row female connector on the back of the machine (see section 6-3, towards the bottom.  http://www.biodex.com/physical-medicine/products/dynamometers/system-4-pro-0).  I need to get this output so that I can plug it into our NI A/D board via BNC connectors. 

I have no idea where to even begin.  Do I need to make a breakout box of some sort?  I've seen 15 pin to BNC connectors for tv signals, but those only give 8 BNC outputs and so my worry is not knowing what pin is associated with what output. 

Any help is much appreciated.  Thank you.

[Dennis_Knutson]

I doubt that you will be able to find a break out box with your unique connections. You could have your own made or use a matching db15 with solder cup connections and manually wire to three bnc connectors where the signal is the center conductor and gnd is connected to the shield.

[SnowMule]

Yea dude, head to digikey.com and buy a roll of RG174, some BNC crimp ends and a crimper, and a DB15 solder-cup connector and a backshell. Fire up the soldering iron, crack open a beer, and build a cable.

Draft the schematics/pinout first, wire it up, ohm it out, and plug it in.

If you're not up for doing it yourself, companies like L-Com can do custom cable assemblies for you.  Still need to do the design for wiring specs and pinouts.