External Connectors; Mini-Din (Ps/2) For Mouse And Keyboard; Serial Port - HP P5389A - Intel Pentium III-S 1.4 GHz Processor Upgrade Maintenance Manual

2 External Connectors

Unless otherwise noted, the following features apply to all models. Some features are factory installed; others
are optional.

Mini-DIN (PS/2) for Mouse and Keyboard

Serial Port

Pin Number Signal Description
1 Data signal
2 Not used
3 Ground
4 Power (+5 V dc)
5 Clock signal
6 Not used
5
4
3
2
1
Pin Number Signal Description
1 Data carrier detect
2 Receive data
3 Transmit data
4 Data term ready
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
9
8
7
6
7