HP vc4815 Serial Port Definition Guide: HP Compaq vc4815 Thin Client - Page 7

V / DCD, DTR/+5V /+12V, RTS/+12V

Page 7 highlights

辅口 1(串口 2 3(串口 4)定义: 定义 引脚 1脚 2脚 3脚 4脚 5脚 6脚 7脚 8脚 9脚 辅口 1 (串口 2) 辅口 3 (串口 4) +5V / DCD +5V / DCD RXD RXD TXD TXD DTR/+5V /+12V DTR/+5V /+12V GND GND DSR DSR RTS/+12V RTS/+12V CTS CTS RI RI

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辅口
1
(串口
2
)与
辅口
3
(串口
4
)定义:
定义
引脚
辅口
1
(串口
2
辅口
3
(串口
4
1
+5V
/ DCD
+5V / DCD
2
RXD
RXD
3
TXD
TXD
4
DTR/+5V /+12V
DTR/+5V /+12V
5
GND
GND
6
DSR
DSR
7
RTS/+12V
RTS/+12V
8
CTS
CTS
9
RI
RI