Specifications

Chapter 2 l l Hardware Installation and IO-IRQ
7
2.2 Jumper Settings for Interface
Jumpers for the first and second ports are symmetric with those for the third and
forth ports as shown in the above picture.
Port 1 Port 2 Port 3 Port 4 Selection Function
JP 2 JP 3 JP 4 JP 5 Interface & RS-485 Operation Mode
JP 6 JP 8 JP 10 JP 12 RS-422/RS-485 Transmitter Mode
JP 7 JP 9 JP 11 JP 13 RS-422/RS-485 Receiver Mode
For illustration, jumper settings of the first port is shown below.
Jumper Settings for RS-232 Port
Put the jumpers in the positions as depicted. Do not care Tx (JP6) and Rx (JP7).
Jumper Settings for RS-422 Port
Put the jumpers in the positions exactly as depicted.
JP7 (Rx)
JP2
JP6 (Tx)
232 422 485
RTS ON
REG
AUTO
ON
RTS OFF
REG
AUTO
ON