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AsteRx4 Evaluation Kit
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3.3
Push-Buttons
Button name
Function
Details
PWR_TOGGLE
Press this button to toggle
between active and stand-by
mode.
When pressed, the nPWR_TOGGLE pin of the
AsteRx4_OEM receiver (pin#8) is driven low.
When released, the nPWR_TOGGLE pin is left open.
LOG
Press this button to toggle SD-
card logging on and off.
When pressed, the Button pin of the AsteRx4_OEM
receiver (pin#44) is driven low.
When released, the Button pin is pulled up.
nRST_PROM
Do not use: for maintenance
only.
nRST_IN
Press this button to reset and
restart the receiver.
When pressed, the nRST_IN pin of the AsteRx4_OEM
receiver (pin#10) is driven low.
When released, the nRST_IN pin is pulled up.
3.4
Connectors
3.4.1
80-pin Connector
This is where the AsteRx4_OEM receiver must be plugged.
3.4.2
VCC_IN Connector and Header
With the default jumper configuration as defined in section 3.2, the interface board is
powered by the VCC_IN socket connector or equivalently by the VCC_IN 3-pin header
located next to it. The central pin of the VCC_IN header is connected to the central pin of
the socket connector.
Voltage range at the VCC_IN connector: 9V-15V DC.
There is a 3A fuse next to the VCC_IN socket.
Other main supply options can be selected by changing the jumper configuration. Refer
to the schematics in section 3.2 for details.
3.4.3
Event and PPS Header
The five pins at the right of the 2x5 header are tied to the following pins of the 80-pin
connector:
