Moxa MPC-122X-K-ECDIS [17/47] Connecting data transmission cables

MPC-122-K Hardware Hardware Connection Description

3-4

Connecting Data Transmission Cables

This section describes how to connect the MPC-122-K computer to the network and serial devices.

Connecting to the Network

Plug your network cable into the embedded computer’s Ethernet port. The other end of the cable should be

plugged into your Ethernet network. When the cable is properly connected, the LEDs on the embedded

computer’s Ethernet port will glow to indicate a valid connection.

The 10/100/1000 Mbps Ethernet LAN port uses 8-pin RJ45 connectors. The following diagram shows the

pinouts for these ports.

The LED indicators on the right top

and right bottom corners glow a solid green color

when the cable is properly connected to a 100 Mbps Ethernet network. The LED will

flash on and off when Ethernet packets are being transmitted or received.

The LED indicators on the left top and left bottom corners glow a solid yellow color

when the cable is properly connected to a 1000 Mbps Ethernet network. The LED will

flash on and off when Ethernet packets are being transmitted or received.

Pin 10/100 Mbps 1000 Mbps

1 ETx+ TRD(0)+

2 ETx- TRD(0)-

3 ERx+ TRD(1)+

4 – TRD(2)+

5 – TRD(2)-

6 ERx- TRD(1)-

7 – TRD(3)+

8 – TRD(3)-

Connecting to a Serial Device

Use a serial cable to plug your serial device into the embedded computer’s serial port. Serial ports 1 and 2 have

male DB9 connectors and can be configured for RS-232, RS-422, or RS-485 communication by software. The

pin assignments are shown in the following table:

DB9 Male Port RS-232/422/485 Pinouts

Pin RS-232 RS-422 RS-485

(4-wire)

RS-485

(2-wire)

1 DCD TxDA(-) TxDA(-) –

2 RxD TxDB(+) TxDB(+) –

3 TxD RxDB(+) RxDB(+) DataB(+)

4 DTR RxDA(-) RxDA(-) DataA(-)

5 GND GND GND GND

6 DSR – – –

7 RTS – – –

8 CTS – – –