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25 Appendix A

An example of the installation of COM3 is as follows:

Figure A.9: Terminator Installation

RS-232/422/485 Selection

COM3 and COM4 support 9-wire RS-232, RS-422 or RS-485 interfaces,

and you can set corresponding jumpers to select serial ports as RS-232 or

RS-422/485 interfaces shown in Table A-7.

The system detects RS-422 or RS-485 signals automatically in RS-422/

485 mode.

Jumper Setting for RS-422/485 Interface: (Default Setting)

Figure A.10: RS-422/485 Jumper Settings

Jumper Setting for RS-232 Interfaces:

Figure A.11: RS-232 Jumper Settings

Table A.7: Selecting RS-232/422/485 (COM3&4)

Serial Port Corresponding Jumper to Select RS-232/422/485

COM3 JP6

COM4 JP7

TR3

120

A B

EF I

A B

EF I

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 37 38

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