1. Option Unit is necessary when:

   a. MASTER does not built-in RS485 har dware

   b. MASTER does not support Modbus(RTU) Protocol

2. Maximum Drive N is determined by:

   a. N=99, shen master can assign multiple ID address

   b. N=8, when master can assign only 1 ID address(etc. HMI)

3. Only PDS and PD an series support Modbus(RTU) protocol

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How to connect to Easyview-HMI RS485(RS422) port to PDS inverter
D-sub 9pin Male<-->JAM-SC-5P

Pin4←---------------------→ Sig +　Pin3(A)

Pin5←---------------------→ Sig -　Pin4(B)

Pin6←---------------------→ 0V Pin2(0V)

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How to connect to Easyview-HMI RS232 port to JPS(232/485) comm. board
D-sub 9pin Male<-->D-sub 9pin Female

Pin2←---------------------→ Pin3

Pin3←---------------------→ Pin2

Pin5←---------------------→ Pin5(GND)

Pin7←---------------------→ Pin8

Pin8←---------------------→ Pin7

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How to connect to Proface-HMI RS485 port to PDS inverter
D-sub 25pin Male←---------------------------------------→JAM-SC-5P

Pin4← →Pin5

Pin7----------------------------------------------------------→ 0V　Pin2(JAM)

Pin9← →Pin10← →Pin11----------------------------→Sig+　Pin3(JAM)

Pin15← →Pin16----------------------------------------→Sig- Pin4(JAM)

Pin18← →Pin19

Pin21← →Pin22

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How to connect PC 9-Pin Communication port to PDA/E communication board
PC 9-Pin PDA/E Com. Board

Pin1:　N.C.

Pin2:　RX to RX

Pin3:　TX to TX

Pin4:　N.C.

Pin5:　0V to 0V

Pin6:　DSR to 9V

Pin7:　RTS to RTS

Pin8:　CTS to 9V

Pin9:　N.C.