SATEC PM296 - Manual (Page 70)

Chapter 7 Communications 62
Computer Multidrop Connections for RS-422/RS-485: COM2
Figure 7-15 RS-422
Multidrop Connection, 25-Pin PC Port
Figure 7-16 RS-422
Multidrop Connection, 9-Pin PC Port
Figure 7-17 RS-485
Multidrop Connection, 25-Pin PC Port
Figure 7-18 RS-485
Multidrop Connection, 9-Pin PC Port
NOTE: Where an RS-232/RS-422 converter is used, R1 is not applicable since it is
built in to the converter.