User manual

13 Chapter 2

2.3.4 COM7 Connector

The ARK-3381 provides a D-sub 9-pin connector, which offers one RS-

232 serial communication interface port of COM7; it comes with func-

tions of Rx and Tx only but without handshaking. Please refer to section

3.8 "Jumper Settings" and Chapter 6 "Full Disassembly Procedure" set up

information.

Figure 2.8: COM7 Connector

2.3.5 Ethernet Connector (LAN)

The ARK-3381 is equipped with an Intel 82551ER Ethernet controller

that is fully compliant with IEEE 802.3u 10/100Base-T CSMA/CD stan-

dards. The Ethernet port provides a standard RJ-45 jack connector with

LED indicators on the front side to show its Active/Link status (Green

LED) and Speed status (white LED).

Figure 2.9: Ethernet Connector

Table 2.6: COM 7 Serial port pin assignments

RS-232

Pin Signal Name

1 DCD (optional)

2 RxD

3 TxD

4 DTR (optional)

5GND

6 DSR (optional)

7 RTS (optional)

8 CTS (optional)

9 RI (optional)

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