Manual

5
 COM2
Recommended Cable
Connector
XM2D-0901 <made by OMRON Corp.>
Recommended Jack Screw XM2Z-0073 <made by OMRON Corp.>
Recommended Cable Cover XM2S-0913 <made by OMRON Corp.>
Interfit Bracket #4-40 inch screws are used.
Pin #
RS422/RS485
*1
*1 RS485 is compliant with ST-3300 series units with revision code “B” or later.
Revision (page 11)
Signal Name Meaning
1 RDA Receive Data A(+)
2 RDB Receive Data B(-)
3 SDA Send Data A(+)
4 ERA Data Terminal Ready A(+)
5 SG Signal Ground
6 CSB Clear to Send B(-)
7 SDB Send Data B(-)
8 CSA Clear to Send A(+)
9 ERB Data Terminal Ready B(-)
Shell FG
Frame Ground
(Common with SG)
SEE