[Coco] Looking for information on a SCSI cable for the Ken-ton system

[TL Steege]

I have a CoCo Ken-ton 85 meg SCSI drive with a controller which includes a
Seagate ST296N 85MB 3600 RPM 5.25" SCSI drive but, it is missing the custom
cable between the case and the controller pak. If anyone has any schematics
for the cable's construction, it would be greatly appreciated. The CoCo
Archive has the manual but unfortunately nothing about the cable.

https://colorcomputerarchive.com/repo/Documents/Manuals/Hardware/Ken-Ton%20SCSI%20Interface%20-%20Installation%20and%20Setup%20manual%20(FARNA%20Systems).pdf

Thanks in advance for any help.
Terry