How do I connect my computer to a Bendix EC80
 

I am an intern at a consulting company, and I am tasked with researching how to perform a benchtop download, or a download outside of a vehicle, to a Bendix ESP EC80 Controller. I have tried looking into the service manual online, but I have had trouble finding how to connect it to a laptop or computer. We have a Nexiq USB Link-2, which connects most car diagnostics systems through OBDII or other pin connectors, but I don’t know what adapter or plug I need to use to connect the Bendix EC80 to the Nexiq. Any and all advice is appreciated.

Here is the link I found to the most recent version of the service manual:

https://n0c357rmy1njbuit2friqwu.blob...986_US_002.pdf