Serial Port 2 In Rs-422/485 Mode (J422_485); Serial Port 2 Connector (Jcom2) - Avalue Technology ECM-APL2-B1 User Manual

ECM-APL2-B1 User's Manual
2.3.7

Serial port 2 in RS-422/485 mode (J422_485)

2.3.8

Serial port 2 connector (JCOM2)

22 ECM-APL2-B1 User's Manual
Signal PIN PIN
485TX2- 1
485RX2+ 3
+5V 5
Signal PIN PIN
COM_DCD#_2 1
COM_TXD_2 3
GND 5
COM_RTS#_2 7
COM_RI#_2 9
Signal
2 485TX2+
4 485RX2-
6 GND
Signal
2 COM_RXD_2
4 COM_DTR#_2
6 COM_DSR#_2
8 COM_CTS#_2
10 NC