User`s manual

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3
Chapter 3 Pin Assignment
The UPort 2210 has 2 ports RS-232 interface and UPort 2410 has 4 ports RS-232 interface.
DB9 Male RS-232 Port for UPort 2210/2410
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69
Pin RS-232
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS