VXC-112(i)(A)U/142(i)AU/182i(A)U/114(iA)U/144(i)U, VEX-114(i)/144(i) , VEX-112(i)/142(i) User’s Manual (Ver. 1.5
Aug.10 2012) -----16
2.3 Pin Assignment
2.3.1 VXC-112(A)U/VXC-112iAU/VEX-112(i) Pin Assignment
2.3.2. VXC-142(i)(A)U/VEX-142(i) Pin Assignment
RS-232 Cable Wiring (Null Modem)
Warning:
The RS-485 bus is a differential (balanced)
signal, thus
you cannot wire the Data+ with Data-
directly for a single port loop-back test.
It will not
work at all!
