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2.4.16
Internal COM RS232 Header (CN47)
Pin
1
3
5
7
2.4.17
RS-232/485 Select (SW1)
Mode
1T/1R RS-232
1T/1R RS-485
Enable RS-422/RS-485 bias
and termination resistors
Disable RS-422/RS-485 bias
and termination resistors
250kbps
for
RS-485/RS-422
RS-232 to 3Mbps
RS-485/RS-422 to 20Mbps
Note: SW1 controls the RS-232/485 mode for CN6. See Ch 2.4.5 for Pin Definitions
Chapter 2 – Hardware Information
Signal
3.3V
RXC_2
TXC_2
GND
RS-232
and
Pin
Signal
2
NC
4
NC
6
NC
8
NC
S-1
S-2
S-3
On
On
Off
On
On
Off
S-4
On
Off
22
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