Lexmark 4I3 - Manual (Page 297)

|
Cable Configurations
| Cable configurations depend on the computer or devices and
| machines in the controlling system.
| The following diagrams show some of the possible configurations for
| the RS-232C and RS-422A connection.
| RS-232C
| Local Simplex — DTR Pacing, No Status Reporting
(7)
(2)
CTS (5) or DSR (6)
(7)
(3)
(20)
(4)
(6)
SG
RXD
DTR
RTS
DSR
SG
TXD
Computer Printer
| Local Duplex — DTR or XON/XOFF Pacing, Status Reporting
(7)
(2)
CTS (5) or DSR (6)
(7)
(3)
(20)
(6)
SG
RXD
DTR
DSR
SG
TXD
(3)
(2)
(5)
(4) RTS
CTS
TXD
RXD
Computer Printer
Appendix E. Cabling Information E-3