Contec BX-M2510 Series Reference Manual page 27

Serial A port connector
Connector used on the product
Pin No. RS-232C
1 DCD
2 RD
3 TD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
Serial B, C, D port connector
Connector used on the product
Pin No. Signal Name
1 DCD
2 RD
3 TD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
—
Product Nomenclature and Function
BX-M2510 Series Reference Manual
9-pin D-SUB (MALE)
RS-422
TX-
TX+
RX+
RX-
GND
RTS-
RTS+
CTS+
CTS-
9-pin D-SUB (MALE)
Description
Carrier detect
Received data
Transmitted data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
Ring indicator
- 27 -
—
RS-485
DATA-
DATA+
-
-
GND
-
-
-
-
Direction
Input
Input
Output
Output
-----
Input
Output
Input
Input