Advantech TPC-B520 Series - COM1 RS-232;422;485 Connector (COM1); Speaker Connector (SPK1)

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TPC-B520 User Manual
A.3.7 COM1 RS-232/422/485 Connector (COM1)
Table A.11: COM1 RS-232/422/485 Connector (COM1)
Pin
RS232
RS422
RS485
1
DCD
TX-
Data-
2
RX
TX+
Data+
3
TX
RX+
4
DTR
RX-
5
GND
GND
GND
6
DSR
7
RTS
8
CTS
9
RI
A.3.8 Speaker Connector (SPK1)
Table A.12: Speaker Connector (SPK1)
Pin
Signal
1
R+
2
R-
3
L-
4
L+