User manual

ARK-3383 User Manual 26

2.2.7 COM2 Connector: RS-232/422/485 port

The COM2 serial communication interface port can be configured to sup-

port RS-232, RS-422 or RS-485 interface functionality.

The default setting of COM2 is RS-232. The RS-422/485 mode of COM2

can be supported via replacing the system internal COM2 cable with the

flat cable, part number 1700001967, and adjusting the jumpers of J3/J4/

J5 which are located on the system internal motherboard of the ARK-

3383 unit. Please refer to Chapter 3 “Hardware installation and upgrade”

and Chapter 8 “Full Disassembly Procedure” to set it up.

The 1700001967 part number is a flat cable which supports RS-485/RS-

422 functional mode for the COM2 serial communication interface port.

This cable has been stored in the accessory box of the product package;

please refer to your product package.

Figure 2.6: COM2 Connector

4NC

5NC

6 RCV-

7NC

8NC

Table 2.7: COM2 Serial port pin assignments

RS-232 RS-422 RS-485

Pin Signal Name Signal Name Signal Name

1 DCD Tx- DATA-

2RxD Tx+ DATA+

3TxD Rx+ NC

4DTR Rx- NC

5 GND GND GND

6DSR NC NC

7RTS NC NC

8CTS NC NC

Table 2.6: RJ-45 Connector pin assignments

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