Users Guide

Table 8. RS-232 pin definition details (continued)
Pin Signal Characteristics
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
3 Not applicable Not applicable
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