Users Guide

Table 8. RS-232 pin definition details

Pin Signal Characteristics

1 DCD Data Carrier Detect

2 RXD Received Data

3 TXD Transmitted Data

4 DTR Data Terminal Ready

5 GND Ground

6 DSR Data Set Ready

7 RTS Request To Send

8 CTS Clear To Send

9 RI Ring Indicator

10 GND Ground

Table 9. RS-485/RS-422 full duplex pin definition details

Pin Signal Characteristics

1 TXD– Transmit Data A

2 TXD+ Transmit Data B

3 RXD+ Receive Data B

4 RXD– Receive Data A

5 GND Ground

6 Not applicable Not applicable

7 Not applicable Not applicable

8 Not applicable Not applicable

9 Not applicable Not applicable

10 GND Ground

Table 10. RS-485 half-duplex pin definition details

Pin Signal Characteristics

1 Data– (–) TX/RX data

2 Data+ (+) TX/RX data