Advantech 5000 Series - Manual (Page 26)

Chapter 2
5. Avoid running wires near high energy wiring
6. Avoid running input wiring in close proximity to
output wiring where possible
7. Avoid creating sharp bends in the wires
RS-485 Port Connection
There is a pair of DB9 ports in the ADAM-5000 system. The ports are
designed to link the RS-485 through a cable to a network in a system.
The pin assignment of the port is as follows:
Note:
The wiring of the RS-485 should be through a twisted
pair. To reduce electrical noise, it should be twisted
as tightly as possible
ADAM-5000 2-11
Installation Guideline