PDA, Tablet PC, MP3 players and other portable devices  > HP pinouts
right side Pin Pin
2 DCD Data Carrier Detect
4 RxD Received Data (by DTE)
6 TxD Transmitted Data (by DTE)
8 DTR Data Terminal Ready
10 GND Signal Ground
1 DSR Data Set Ready
3 RTS Request To Send
5 CTS Clear To Send
7 RI Ring Indicator
9 prot.GND Not on the DB-9. Protective ground: Shield of plugs and cable are connected here


10 pin IDC male connector layout
10 pin IDC male connector
According to 1 reports in our database (0 positive and 1 negative) this pinout may be incorrect.

Is this pinout
HP 200lx serial port visual pinout:
HP 200lx serial port diagram
click to enlarge
Source(s) of this and additional information: http://www.daniel-hertrich.de/rs232/
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