User manual

11 Chapter 2

2.3 ARK-3381 rear face plate external I/O connectors

2.3.1 Power Input Connector

The ARK-3381 comes with a Phoenix connector that carries 12~24 VDC

external power input.

Figure 2.5: Power Input connector

2.3.2 COM1 Connector

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

dard RS-232 serial communication interface port for COM1.

Figure 2.6: COM 1 Connector

Table 2.3: Power connector pin assignments

Signal Name

1 GND

2 +12~24VDC

Table 2.4: COM1 Serial port pin assignments

Signal Name

1 DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

1 2

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