Hardware reference guide

Multiport Serial I/O Adapter Hardware Reference Guide 10
DB-9 to Device Cabling
Figures 13 through 15 show the pinouts required to make a cable to
connect between SST DB-9 ports and your devices.
Figure 15. Cable Pinouts for SST DB-9 to modem DB-25
Figure 14. Cable Pinouts for SST DB-9 to PC DB-9
Figure 13. Cable Pinouts for SST DB-9 to Terminal/Printer DB-25