Moxa Technologies INTELLIO C218 Bedienungsanleitung PDF herunterladen (Seite 85)

Connection Option (Opt8x) and Cable Wiring

Intellio C218Turbo User's Manual 5-11

RS-485 Cable Wiring for Opt8J

One RS-485 connection box designed for C218Turbo is:

Opt8J: Connection box with 8 female RS-422/485 DB25 ports. Set the port

switch to ON position (RS-485) for the desired port(s).

The Opt8J supports only 2-wire half-duplex RS-485 communication. Data+/- pins

are served for both data transmitting and receiving, depending on the RTS signal.

RS-485 Pinouts for Opt8J:

Opt8J

3 Data+(B)

7GND

16 Data-(A)

Multidrop RS-485 Half-duplex Point-to-Point RS-485 Half-duplex

Opt8J RS-485 Device 1 Opt8J RS-485 Device

Master Slave 3 Data+(B) Data+(B)

3 Data+(B) Data+(B) 16 Data-(A) Data-(A)

16 Data-(A) Data-(A) 7 GND GND

7GND GND

RS-485 Device N

Slave

Data+(B)

Data-(A)

GND

See Section “RS-485 Programming” of Chapter “Serial Programming Tools” for

more Opt8J RS-485 programming details.

3 Data+

(

)

Data-

(

)

7 GND

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Moxa Technologies INTELLIO C218 Bedienungsanleitung Seite 85