Delta Electronics Network Device DOP-B User Manual
Page 34

简中-5
COM2 定义(支持流量控制)
MODE1
MODE2
MODE3
COM Port 示意图
脚位
RS-232
RS-422
RS-485
1 TXD+ D+
2
RXD
3 TXD
4
RXD+
5 GND GND GND
6
TXD-
D-
7 RTS
8
CTS
9
RXD-
注 1:空白=不需连接
注 2:当 COM2 使用 RS-232 流量控制(RTS、CTS 脚位)时,COM3 则无法使用。
注 3:当 COM2 使用 RS-422 流量控制时,其流量控制脚位请参考 COM3 MODE2 括号内的脚位定义。
COM3 定义
MODE1
MODE2
MODE3
COM Port 示意图
脚位
RS-232
RS-422
RS-485
1
TXD+(RTS+)
D+
2
RXD
3 TXD
4
RXD+(CTS+)
5 GND GND GND
6
TXD-(RTS-)
D-
7
8
9
RXD-(CTS-)
注 1:空白=不需连接
注 2:当 COM2 使用 RS-422 流量控制时,其流量控制脚位请参考 MODE2 括号内的脚位定义。
网络端口定义
说明
网络端口示意图
脚位
网络端口
1 TX+
2
TX-
3 RX+
4
5
6
RX-
7
8
注:空白=不需连接
PIN1
PIN1
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