Apollo ESP6000 Manuale Utente
ECM-3612
32 ECM-3612 User’s Manual
2.3.7.2 Serial Port 2 Connector in RS-422 Mode
Signal
PIN PIN
Signal
Tx-
1
2
Rx+
Tx+ 3
4 Rx-
NC
5
6
NC
NC 7
8 NC
NC
9
10
NC
2.3.7.2.1 Signal Description – Serial Port 2 Connector in RS-422 Mode (CM4)
Signal
Signal Description
Tx +/-
Serial output. This differential signal pair sends serial data to the communication
link. Data is transferred from Serial Port 2 Transmit Buffer Register to the
communication link, if the RTS register of the Serial Port 2 is set to LOW.
Rx +/-
Serial input. This differential signal pair receives serial data from the
communication link. Received data is available in Serial Port 2 Receiver Buffer
Register.