User manual

NOTE : It is not always necessary to have the
termination resistor. It really depends on the
actual wiring and connection circumstances.
5. See the figure below:
- 11 -
WAS-1467
RX+
RX-
120 Ohm
WAS-1487
last unit
AC-9400
WAS-1467
AC-9400AC-9400
RS485 +
RS485 -
120 Ohm
WAS-1487
last unit
TX+
TX-
TR530
TR530TR530
RS485A:
RS422A:
USB PC
USB PC