User Manual

PL3000 Series Hardware Manual
3-20
Serial Mode Select Switches (SW4 to SW10) operate as shown in the circuit diagram below.
*1
*1 Set switches number 9 and 10 to ON when the SD (TXD) output driver is automa tically controlle d wit h
RS (RTS). Set switch number 4 to OFF.
Set switches number 9 and 10 to OFF when the SD (TXD) output driver is controlled with the RS (RTS)
signal. Set switch number 4 to ON.
• Be sure to confirm the setting that will be used by the other devi ce and set the
switches accordingly. Failure to do so can lead to an accident or unit malfunction.
*