This is the large adapter cable to allow for calibration and servicing for the Tektronix AFG5101 Arbitrary Function Generator.

It allows for the removal of the CPU board to enable access to the adjustments on the Arbitrary board.

It is one part of a set, so check my profile to find the other smaller cable.

To construct this cable, simply bend the pins inwards slightly on the plugs so they lightly grip the PCB and then solder into place with the parts aligned straight. masking tape is good for holding things steady on the desk.

Also, ensure that the orientation is correct as shown in the photos!

For the ribbon cable, a little fiddling around is needed... (I made mine 35cm long)

You will need to split one end into pairs, then flip each pair as shown in the image. This is to make the cable a true 1-1 straight through cable.

I found it easiest by placing some tape sticky side up on the bench and sticking the cable down as you flip the wire pairs, then taping over the top of the lot to hold it all in place while you crimp the cable into the IDC connector.

It's a little fiddly but can be done with some care.

Also, it doesn't matter which side the ribbon cable enters the female IDC connector, as long as it's flipped the right way.

Link to video featuring the cables:

https://youtu.be/G_SFTs97k5I