Switch And Buttons - Quectel UC20 User Manual

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Table 8: Pin Assignment of J301
J301 Pin Signal Name
1 RS232_DCD
2 RS232_RXD
3 RS232_TXD
4 RS232_DTR
5 RS232_GND
6 NC
7 RS232_RTS
8 RS232_CTS
9 RS232_RI

3.6. Switch and Buttons

UC20 EVB comprises two buttons (S202 and S203) and one switch (S201). Figure 18 shows the switch
and buttons.
UC20_EVB_User_Guide
I/O
O
I
O
I
/
/
I
O
O
Figure 18: Switch and Buttons
Confidential / Released
UMTS/HSPA Module Series
UC20 EVB User Guide
Description
Data carrier detection.
Receive data.
Transmit data.
Data terminal ready.
GND.
NC.
Request to send.
Clear to send.
Ring indicator.
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