socomec DELPHYS MX - Connections and Cablings; RS232 Connection Details; Isolated RS485 Connection; Isolated RS422 Connection

UPS/NTA GB/DMX-DMP JBUS.D Page 4 / 22
Connections and cablings
NOTE : there is only one connection per interface (RS232 or RS422 or RS485)
9 RS232 connection
) Standard PC connection
) Sub-D 9 pins connector
) Pin 2 : Rx
) Pin 3 : Tx
) Pin 5 : GND
9 Isolated RS485 connection
) 2 wires connection
) « dip-switch c » allows connecting the terminal resistor
) Isolation via “opto-coupler”
) 2 polarization resistors could be removed easily (if needed).
9 Isolated RS422 connection
) 4 wires connection
) « dip-switch c and d » allows connecting the terminal resistors
) Isolation via “opto-coupler”
) 4 polarization resistors could be removed easily (if needed).
RECOMMENDATIONS
Before making any connection, please check the cabling. A wrong connection or cabling can damage
the serial link interface.
RTX-
RTX+
TX-
TX+
RX+
RX-