Reference Manual

16-Axis MACRO CPU Hardware Reference Manual
Connector Pinouts 17
J4: (JRS232) Serial Port Connector
DB9-pin Female
2345
6789
1
Pin # Symbol Function Description Notes
1 N.C. No connection
2 TXD/ Output Send Data Transmit data to host
3 RXD/ Input Receive Data Receive data from host
4 DSR Bidirect Data Set Ready Just tied to DTR
5 GND Common MACRO Common
6 DTR Bidirect Data Terminal Ready Just tied to DSR
7 CTS Input Clear to Send Host Ready bit
8 RTS Output Request to Send PMAC Ready bit
9 N.C. No connection