User`s manual

2.2 AlphaPC64 Board Connectors

Table 2–3 (Cont.) Module Connector Descriptions

Connector Pins Description

J29 6 Module power connector (GND, –5 V, +5 V [Vdd])

Pin Voltage/Signal

1 Ground

2 Ground

3–5V

4Vdd

5 Vdd

6 Vdd

J31 6 Module power connector (GND, +12 V, –12 V, +5 V

[Vdd], p_dcok)

Pin Voltage/Signal

1 p_dcok

2 Vdd

3 +12 V

4 –12 V

5 Ground

6 Ground

Note: Power for the AlphaPC64 is provided by a user-

supplied, standard PC power supply that includes

3.3 V dc. Digital does not provide this power supply.

J14 3 CPU fan power and sensor

Caution: Fan sensor required

The fan must have a built-in sensor that drives a signal

if the airﬂow stops. The sensor is connected to J14. The

fan supplied with the AlphaPC64 includes an airﬂow

sensor.

(continued on next page)

2–12 System Jumpers and Connectors