Trimble 5800 and Trimmark II cable

Good day,

?ÿ

I am new to this forum and new to surveying. A friend of mine has a pair of 5800's and a Trimmark II radio. We are working on making this set up RTK. However, we are wondering about the cable needed to connect them. All we know is that the 5800 has a 7 pin connector and the trimmark II has a 5 pin connector. I found and purchased a cable with that description, but the connector that goes into the 5800 it's a little bigger than it should be.

If someone can help by telling me the model number of the cable in need or maybe has access to a diagram on how to makeshift the cable.?ÿ

I will appreciate all your suggestions

?ÿ

Sergio?ÿ