174 SPARC Enterprise T5440 Server Service Manual • June 2011
Serial Port Connector PinoutsThe serial port connector (TTYA) is a DB-9 connector that can be accessed from the
back panel.
Pin Signal Description Pin Signal Description
1 Data Carrier Detect 6 Data Set Ready
2Receive Data 7Request to Send
3Transmit Data 8Clear to Send
4 Data Terminal Ready 9 Ring Indicate
5Ground