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2.5
COM Port Connector (COM4)
Connector size
Connector type
Connector location
Connector pin
definition
DB9 pin definition
User's Manual
2 X 5 = 10 Pin
JST-2.0mm-M-180
COM4
Pin
1
COM4_DCD
3
COM4_TXD
5
GND
7
COM4_RTS
9
COM4_RI
Pin
1
COM4_DCD
Signal
Pin
Signal
RS232
RS422
TXD-
2.0 Internal Connector Specification
Signal
2
COM4_RXD
4
COM4_DTR
6
COM4_DSR
8
COM4_CTS
10
GND
RS485
TXD-/RXD-
19
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