User`s manual

42 Functional Description

Keyboard/ Mouse Interface

The keyboard controller is located on the cPCI-3920B and is 8042

software compatible.

The PC/AT standard keyboard/mouse connector is a PS/2-type 6-

pin shielded Mini-DIN connector.

A Y-cable to connect a mouse device and/or a keyboard to the

PS/2 connector is included in the package of cPCI-3920B.

PS/2 Keyboard/Mouse Connector

Table 3-10: PS/2 Keyboard/Mouse Connector Pin Definition

Pin # Signal Function

1 KBDATA Keyboard Data

2MSDATAMouse Data

3 GND Ground

4+5V Power

5 KBCLK Keyboard Clock

6 MSCLK Mouse Clock

NOTE:

The PS/2 power supply provides short-circuit protection and all

the signal lines are EMI-filtered.