User manual

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For all IC-485S / IC-485SI units, set SW1 to DCE or DTE depending on what type of

device the IC-485S / IC-485SI will plug into (if it will plug into a DCE device, configure it

for DTE, and vice versa).

For the Master unit, set SW2 to TxON, RxON.

For all Slave units, set SW2 to TxRTS, RxON.

Multidrop Half Duplex

Multidrop Half Duplex uses straight-through four wire cabling, to link all the connected

IC-485S / IC-485SI units:

For all IC-485S / IC-485SI units, set SW1 to DCE or DTE depending on what type of

device the IC-485S / IC-485SI will plug into (if it will plug into a DCE device, configure it

for DTE, and vice versa).

For all IC-485S / IC-485SI units set SW2 to TxRTS, RxRTS.

Simplex

A Simplex configuration is one in which more than two devices are linked for communication using