Avila Network Computer Operating Manual
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JTAG Programming Port
A JTAG debug port is available to facilitate program download directly into Flash
memory. See section 2.7 for instructions on using the Gateworks JTAG
Programmer.
Status LED and Push Button Reset
The GW2348-4 includes a status LED and a push button for generating reset.
The LED is connected to general purpose I/O 3 (GPIO3).
DC/DC Converter
A switching DC/DC converter supplies power to the GW2348-4. This allows
support for a wide input voltage range and higher power radios with high
efficiency operation. The DC/DC has a minimum input voltage of 9VDC and a
maximum of 48VDC.
DO NOT EXCEED THE 48VDC INPUT MAXIMUM OR
DAMAGE MAY OCCUR TO THE BOARD
. The input power is supplied through
a power connector or through the RJ45 Ethernet connector in a power over
Ethernet configuration. The voltage drop due to the resistance of the Ethernet
cable between the GW2348-4 and the power injector must be considered when
selecting the power supply operating voltage. The input is protected against
reverse voltage connection and transient voltage spikes. Refer to Section 2, Input
Voltage Selection, for additional information on choosing an input voltage.
