ARP 2600 interface cable wiring diagram

Hi,
A music store I repair for got in an Arp 2600. They want me to make cable to test it .
I found the 6 pin male and female connectors, is one of the pins a shielded ground and is it wired pin1 male to pin 1 female ,2 to 2, 3 to 3,…6 to 6?
Thanks