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5-8 www.hp.com Technical Reference Guide

Input/Output Interfaces

5.5.2 Pointing Device Interface Operation

The pointing device (typically a mouse) connects to a 6-pin DIN-type connector that is identical

to the keyboard connector both physically and electrically. The operation of the interface (clock

and data signal control) is the same as for the keyboard. The pointing device interface uses the

IRQ12 interrupt.

5.5.3 Keyboard/Pointing Device Interface Connectors

These systems provide separate PS/2 connectors for the keyboard and pointing device. Both

connectors are identical both physically and electrically. Figure 5-6 and Table 5-4 show the

connector and pinout of the keyboard/pointing device interface connectors.

Figure 5-6. PS/2 Keyboard or Pointing Device Interface Connector (as viewed from rear of chassis)

Table 5-4.

Keyboard/Pointing Device Connector Pinout

Pin Signal Description Pin Signal Description

1DATA Data 4+ 5 VDCPower

2 NC Not Connected 5 CLK Clock

3 GND Ground 6 NC Not Connected

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 113 114

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HP LK585LT Scheda Tecnica Pagina 58