SEPTENTRIO AsteRx-m3, Руководство пользователя

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Development Kit
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4.7 Ethernet
The DevKit supports 10/100 Base-T Ethernet. It is not possible to power the DevKit
through the Ethernet connector.
4.8 USB Dev
That connector can be attached to a PC to power the DevKit and to communicate with the
receiver over its USB port.
4.9 USB Host
Reserved.
4.10 REF IN
The REF IN connector can be used to feed the receiver with an external 10-MHz sinusoidial
frequency reference. See section 2.6.
Input impedance:
50

.
Input level: between -10dBm and +14dBm (0.2Vpp to 3.2Vpp).
4.11 Buttons
Pressing the nRST button drives the nRST pin of the AsteRx-m3 low, which resets the
receiver.
Pressing the LOGGING button drives the Button pin of the AsteRx-m3 low. This can be
used to enabled and disable logging, as described in section 2.11.
The buttons are also connected to J601 and J602 2-pin headers (see above picture). Tying
the nRST or LOGGING pins of these headers to ground is the same as pressing the
respective button.
nRST
LOGGING
GND