Westermo MX-16 - Handbuch (Seite 17)

17 6604-2001
Example for combined channel connection
Channel 0 is parallel
connected.
Only use one inter-
face at a time-
Either RS-232/V.24
or RS-422.
MX-16
R+
R+
R–
R–
T+
T+
T–
T–
RS-422
RS-232/V.24
MX-16
RD
RD
TD
TD
GND
GND
Transmission range (RS-422)
Use twisted pair cable. Max transmission range 1200 metre.
(cable specifications 0.3 mm
2 and capacitance 42pF/m).
The transmission range will increase if a cable with lower capacitance and larger
diameter is used.
Use shielded cable in heavy industrial environments.