SIGNAL NAME

DEFINITION

DIRECTION

RS-422:

 

 

 

TXD+

Differential Transmit Data (HIGH)

Output

TXD-

Differential Transmit Data (LOW)

Output

RXD+

Differential Receive Data (HIGH)

Input

RXD-

Differential Receive Data (LOW)

Input

RS-485:

 

 

 

DATA+

Differential Transceiver Data (HIGH)

Bi-directional

DATA-

Differential Transceiver Data (LOW)

Bi-directional

6.2CPU Fan

This connector provides power to the CPU fan cooling system. The fan is strongly recommended on the North Bridge chip on the 650MHz model. In most cases just a heat sink is sufficient for the North Bridge chip on the 400MHz model.

1

2

3

Fan control +5V GND

6.3Ethernet LED

This connector can be used to indicate whether the Ethernet is working/active or not. Diamond Systems does not provide any cables or LEDs for this connector.

1

2

3

4

Activity LED +3.3V Link LED +3.3V

Morpheus CPU User Manual V1.01

Page 9

Page 9
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Diamond Systems High INtegration PC/104 Celeron CPU with Ethernet, 1.01 user manual RS-422, RS-485, CPU Fan, Ethernet LED