Xerox 4215 MICR MRP Installation Guide
INTERFACE SUPPORT
Figure B-6 shows how the null modem cable switches several
signals.
signals.
Figure B-6.
Null modem serial cable wiring
DTR
DSR
RTS
CTS
DCD
TXD
RXD
GND
DTR
DSR
RTS
CTS
DCD
TXD
RXD
GND
XEROX 4219/MRP AND 4215/MRP INSTALLATION PLANNING GUIDE
B-7