IBASE MB941 User Manual

Page 19

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INSTALLATIONS

MB941 User’s Manual

15

FAN3: System Fan2 Power Connector

CN1: PS/2 Keyboard and PS/2 Mouse Connectors

Mouse (top)

Keyboard (bottom)

Keyboard

Signal

Pin #

Mouse

Signal

Keyboard data

1

Mouse data

N.C.

2

N.C.

GND

3

GND

5V

4

5V

Keyboard clock

5

Mouse clock

N.C.

6

N.C.

CN2: COM1 RS232/RS422/RS485 Connector

[

Pin #

Signal Name

RS-232

R2-422

RS-485

1

DCD

TX-

DATA-

2

RX

TX+

DATA+

3

TX

RX+

NC

4

DTR

RX-

NC

5

Ground

Ground

Ground

6

DSR

NC

NC

7

RTS

NC

NC

8

CTS

NC

NC

9

RI

NC

NC

10

NC

NC

NC

Pin #

Signal Name

1

Ground

2

+12V

3

NC