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Appendix A: Connections

A.1 Ethernet Pin outs

The HelloDevice Pro Series uses standard Ethernet connector, which is a shielded connector

compliant with AT&T258 specifications. Table A-1 shows the pin assignment and the wire color.

Figure A-1 Pin layout of the RJ45 connector

Table A-1. Pin assignment of the RJ45 connector

Pin Description Color

1 Tx+ White with orange

2 Tx- Orange

3 Rx+ White with green

4 NC Blue

5 NC White with blue

6 Rx- Green

7 NC White with brown

8 NC Brown

A.2 Serial Ports Pin Outs

The pin assignment of the HelloDevice Pro Series DB9 connector is summarized in Table A-2. Each

pin has a function according to the serial communication type configuration.

6 7 8 9

1 2 3 4 5

Figure A-2 Pin layout of the DB-9 connector

Table A-2. Pin assignment of the DB-9 connector

Pin RS232 RS422 RS485

1 - Tx- Data-

2 Rx - -

3 Tx Rx- -

4 DTR Rx+ -

5 GND - -

6 DSR - -

7 RTS - -

8 CTS - -

9 - Tx+ Data+

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 68

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