HP vc4815 Service Reference Guide:HP Compaq vc4815 Thin Client - Page 28
Rxd/txd, Txd/rxd, Nc/dtr, Nc/dsr, Nc/rts, Rxd/txdttl, Txd/rxdttl
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辅口2(串口3)(TTL)定义: 定 义 引脚 1脚 辅口2 (串口3) (TTL) +5V / DCD 2脚 RXD/TXD 3脚 TXD/RXD 4脚 NC/DTR 5脚 GND 6脚 NC/DSR 7脚 NC/RTS 8脚 RXD/TXD(TTL) 9脚 TXD/RXD(TTL)
![](/manual_guide/products/hewlettpackard-vc4815-service-reference-guidehp-compaq-vc4815-client-4bffc53/28.png)
辅口
2
(串口
3
)(
TTL
)定义:
定
义
引脚
辅口
2
(串口
3
)
(
TTL
)
1
脚
+5V
/ DCD
2
脚
RXD/TXD
3
脚
TXD/RXD
4
脚
NC/DTR
5
脚
GND
6
脚
NC/DSR
7
脚
NC/RTS
8
脚
RXD/TXD(TTL)
9
脚
TXD/RXD(TTL)