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3 Nomenclature and Functions
RS-232C Interface (COM)
This product has 1port of RS-232C compliant serial ports of a baud rate 921,600bps (Maximum).
Table 3.3. Serial Ports connector
Pin No.
Signal
name
1
CD
2
RD
3
TD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
32
No.4-40UNC
Inch nut
Direction
Input
Carrier detection
Input
Received data
Output
Transmitted data
Output
Data terminal ready
-----
Signal ground
Input
Data set ready
Output
Request to send
Input
Clear to send
Input
Ring indicate
Meaning
CPSN-MCB271-S1-041 Reference Manual (Hardware)
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