Keyboard and Mouse Connectors

The keyboard and mouse use standard PS/2 connectors. Pin assignments are given in the following table.

Keyboard and Mouse Connector Pin Assignments

Pin

Keyboard Connector

Mouse Connector

1

Keyboard Data

Mouse Data

2

No connection

No connection

3

Ground

Ground

4

+5V (fused)

+5V (fused)

5

Keyboard Clock

Mouse Clock

6

No connection

No connection

 

 

 

Front Panel

The front panel connector provides cabling for the buttons and panel LEDs (power and hard disk). The connector pin assignments are given in the following table.

Front Panel Connector Pin Assignments

Pin

Signal

Pin

Signal

1

HD_PWR

10

FPSLP

2

HDR_BLNK_GRN

11

IRRX

3

HAD

12

GND

4

HDR_BLNK_YEL

13

GND

5

GND

14

N/C

6

FPBUT_IN

15

IRTX

7

FP_RESET

16

IR_PWR

8

GND

17

N/C

9

+5V

18

N/C

 

 

 

 

Connector Pin Assignments B-7

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NEC SP B-Series manual Keyboard and Mouse Connectors, Front Panel, Keyboard and Mouse Connector Pin Assignments