User manual

13 Chapter 2

2.4.3 COM2 Connector

The ARK-3384 provides a D-sub 9-pin connector, which offers one RS-

232/422/485 serial communication interface port of COM2. The default

setting of COM1 is RS-232. The RS-422/485 mode of COM2 can be con-

figured via replacing the system internal cable of P/N of 1700001967, and

adjust the jumper pins (J3/J4/J5) inside of system motherboard. The cable

of P/N of 1700001967 can be found from the accessory box of product

carton.

Note: Please refer to section 3.3 “Jumper Settings” and Chapter 9 “Full

Disassembly Procedure” to set up RS-422 or RS-485.

Figure 2.8: COM 2 connector

Note: NC represents “No Connection”

9RI

Table 2.6: COM2 standard serial port pin assignments

RS-232 RS-422 RS-485

Pin Signal Name Signal Name Signal Name

1 DCD Tx- DATA-

2RxD Tx+ DATA+

3 TxD Rx+ NC

4DTR Rx- NC

5 GND GND GND

6DSR NC NC

7RTS NC NC

8CTS NC NC

9RI NC NC

Table 2.5: COM1 standard serial port pin assignments

324