Apci-7300 And Apci-7420; Rs232 Cabling; Rs422 Cabling; Fig. 7-12: Rs232 Cabling - 1-Port And 2-Port Serial Interface - Addi-Data ADDICOM APCI-7300 Technical Description

Connecting the peripheral

7.4.2 APCI-7300 and APCI-7420

RS232 cabling

Fig. 7-12: RS232 cabling - 1-port and 2-port serial interface

If the modem control signals are not used, they must be either connected
1
on the board (settings through ADDIREG) or externally driven to the
connector via solder bridge.

RS422 cabling

Fig. 7-13: RS422 cabling - 1-port and 2-port serial interface

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APCI-7xxx