CSE-M73A User Manual Ver. 1.0
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1.5
Interfaces
Figure 1-6 Interface
1.5.1 RS232 Port (JP1 and JP2)
CSE-M73A has an RS232 port for serial device (300bps ~ 230,400bps). This port is
interfaced with JP1 and JP2. It supports RTS/CTS hardware flow control and pins which have
the same number of JP1 and JP2 are connected each other.
Number
Name
Description
Level
I/O
Etc.
1
VCC
DC 5V Power
-
-
required
2
RXD
Receive Data
RS232
IN
required
3
TXD
Transmit Data
RS232
OUT
required
4
GND
Ground
-
-
required
5
RTS
Request To Send
RS232
OUT
optional
6
CTS
Clear To Send
RS232
IN
optional
Table 1-1 pin assignment of the RS232 port
