Honeywell CM4 Technical Handbook page 153

CM4 Four-Point Continuous Monitor
CM4
RS422
Monitor
Single CM4 monitor and printer
up to 4000 ft. distance
Male DB-9
RXD+ 2
RXD- 3
TXD- 4
TXD+ 8
Ground 7
These are typical pinouts. Consult your
printer manual for specific pinout information.
Interface RS-422 P/N 874023-R Rear Panel Mount
Refer to Section D.4 for installation checklist and programming
instructions.
Printer P/N 1874-0005 Rack Mount
Cable Customer-supplied; refer to the EMC Considerations section on
page D-2.
Use the connector cable pin-out configuration shown for RS-422
applications.
Figure D-6: Serial Interface, Single CM4, Single Printer up to 4000 ft.
CM4 Technical Manual
Printer
Female DB-25
25 TXD+
19 TXD-
15 RXD-
17 RXD+
1 Ground
Cable Pinout
distance.
D-10