Corporation Computer Hardware User Manual

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
6.2 CPU 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 Fan control
2 +5V
3 GND
6.3 Ethernet 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 Activity LED
2 +3.3V
3 Link LED
4 +3.3V
Morpheus CPU User Manual V1.01 Page 9