HP Armada 7300 Installation And Operation Manual page 161

Pin Signal
1 Carrier Detect
2 Receive Data
3 Transmit Data
4 Data Terminal Ready
5 Ground
Pin Signal
1 VCC
2 ( ) Data
E-4 Connector Pin Assignments
Serial Connector
6
1
Pin
6
7
8
9
USB Connectors (2)
Pin
3
4
9
5
Signal
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
Signal
(+) Data
Ground