rtd cpuModules CMA24BT, User Manual

Page: 43 / 116

BDM-610000087 Rev A Chapter 3: Connecting the cpuModule 33
USB 2.0 Connector
One USB 2.0 compliant connector is available on connector CN5 . Table 8 provides the pinout of the USB
connector.
Speaker
A speaker output is available on pins 1 and 2 of the Utility Port 2.0 connector. These outputs are controlled
by a transistor to supply 0.1 W of power to an external speaker. The external speaker should have 8 Ohm
impedance and be connected between pins 1 and 2.
System Reset
Pin 3 of the Utility Port 2.0 connector allows connection of an external push-button to manually reset the
system. The push-button should be normally open, and connect to ground when pushed. The type of reset
generated by this button can be set in the BIOS configuration utility.
Soft Power Button
Pin 5 of the Utility Port 2.0 connector allows connection of an external push-button to send a soft power
signal to the system. The push-button should be normally open, and connect to ground when pushed. For
more information on the modes of the Soft Power Button, refer to the Power Management section in
Chapter 4, Using the cpuModule
Note For proper operation at USB 2.0 speeds, be sure to use a cable that is rated for USB
2.0, such as the cable kit supplied by RTD.