User`s manual

2-18 Chapter 2
2.5.13. Additional COM Port Connection Header (COM2)
Pin Signal Description Pin Signal Description
1
DCD (Data Carrier
Detect)
2 RXD (Receive-Data)
3 TXD (Transfer-Data) 4
DTR
(Data-Terminal-Ready)
5 GND 6 DSR (Data-Set-Ready)
7
RTS
(Request-to-Send)
8 CTS (Clear-to-Send)
9 RI (Ring-Indicator) 10 NC (No Connected)
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