ETOP SHB-E18, Руководство пользователя

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18 SHB-E18 User`s Manual
COM2 Serial Port
COM2, a 10-pins box-header connector, is the onboard COM2 serial
port of the E18. The following table shows its pin assignments.
Pin #
RS232 Mode
Signal Name
RS422/RS485 Mode
Signal Name
1 DCD, Data carrier detect
TX- (422/485)
2 RXD, Receive data TX+ (422/485)
3 TXD, Transmit data
RX+ (422)
4 DTR, Data terminal ready RX- (422)
5 GND, ground
GND
6 DSR, Data set ready N.C.
7 RTS, Request to send N.C.
8 CTS, Clear to send
N.C.
9 +5V,Ring-IN or +12V N.C.
10
N.C. N.C.
DIO Connector
DIO ports support 8 digital I/O bits. Each bit can be configured as
Input or output individually. All bits are 5V tolerant.
Signal
Name Pin # Pin
#
Signal
Name
GND 1 2 +5V
DIO_0 3 4 DIO_4
DIO_1 5 6 DIO_5
DIO_2 7 8 DIO_6
DIO_3 9 10 DIO_7
1
10
2
1
9