Specifications

Specifications
Table B-6
J2 Pin Assignments (RS-422/485).
Signal Pin Number† Description
SDA 1 Send Data (negative)
SDB 2 Send Data (positive)
RDA 14 Receive Data (negative)
RDB 13 Receive Data (positive)
RSA 3 Request to Send (negative)
RSB 4 Request to Send (positive)
CSA 12 Clear to Send (negative)
CSB 11 Clear to Send (positive)
GND 7,8 Ground
NC 5,6,9,10 No
Connection
† Reverse cable for DCE/DTE selection
B-15