This is for a 9 pin connector, straight out of the manual:
On KSU&PC Pin 1 is not used
KSU pin 2 SD (TXD) to pin 2 on pc RD (RXD)
pin 3 RD (RXD) to pin 3 on pc SD (TXD)
pin 5 CS (CTS) to pin 7 on pc RS (RTS)
pin 7 SG to pin 5 on pc SG
It also shows pin 20 on KSU ER (OTR) to pin pin 6 of pc for CR (DSR)
I hope this helps, it is all in the manual. It also has pinouts for the 25 pin connector.
We all need a little help once in awhile. Tony the Phoneman..