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E m b e d d e d C o n t r o l l e r
RS-232 Mode
Pin
1
3
5
7
9
RS-422 Mode
Pin
1
3
5
7
9
RS-485 Mode
Pin
1
3
5
7
9
Chapter 2 Hardware Installation
Signal
DCDB
TXB
Ground
RTSB
RIB/ +5V/ (+12V)
Signal
TXD-
TXD+
Ground
N/C
N/C/ +5V/ (+12V)
Signal
TXD-
TXD+
Ground
N/C
N/C/ +5V/ (+12V)
2 - 10
A E C - 6 6 3 8
Pin
Signal
2
RXB
4
DTRB
6
DSRB
8
CTSB
Pin
Signal
2
RXD+
4
RXD-
6
N/C
8
N/C
Pin
Signal
2
N/C
4
N/C
6
N/C
8
N/C
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