Dmx Operating Mode; Data Exchange Mode; Figure 16: Point-To-Point Connection Between Two Nodes - WAGO 750-652 Manual

WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485
7.2.4

DMX Operating Mode

In the DMX operating mode, the wiring is based on the RS-485 operating mode.
7.2.5

Data Exchange Mode

Figure 16: Point-to-point Connection Between Two Nodes

In this mode, the contacts of the I/O modules to connect are connected to each
other crosswise.
In the Data Exchange operating mode (point-to-point connection), a twisted-pair
cable should be used at least for larger cable lengths. Two wire pairs and one
ground wire are required. The ends of the cable should be terminated with a
terminal resistor.
Generally, a passive resistance is used by connecting the signal lines via one
100 ... 120 Ω resistor apiece to the ends of the of the cable (A-B).
Manual
Version 1.4.0
Connect Devices 45