APPEND
I
X B. POWER
I
NG THE ASTERX SB SX
B Powering the AsteRx SB Sx
There are 4 ways to power the AsteRx SB Sx :
•
The PWR connector (5-36 VDC)
•
The Ethernet connector (Power over Ethernet - PoE, 37-57 VDC). Please note that only
mode A, as speci
fi
ed in the 802.3af standard, is supported.
•
The rear-panel USB connector connected to a PC or a USB adapter.
•
The front-panel USB OTG socket connected to either a PC or a USB adapter.
A
micro-USB cable and adapter are supplied as standard.
I
f power is provided through the Ethernet, the PWR or USB connectors
• I
f PWR voltage is above 12V, PWR takes precedence.
• I
f PWR voltage is below 12V, Ethernet takes precedence.
• I
f power is supplied through USB, together with any other supply (Ethernet or PWR),
USB is always used as backup power supply.
•
For delivering power through USB, both USB ports are considered equal.
I
f the receiver is supplied from a voltage source > 5.5V:
•
The USB OTG port is only usable as USB device (not as USB host).
•
No power should be drawn from the 5V OUT pin of the COM1-GP
I
O connector.
When powered via Ethernet, this allows the connection of a back-up battery to the ODU PWR
connector. The battery will only be used in case of an outage of the power over Ethernet.
The current power source (PWR or Ethernet connector) and the voltage at the PWR connector
are reported in the
PowerStatus
SBF bock.
Be aware that if you are using your own cables for powering the AsteRx SB Sx at low
voltage (5V), care should be taken of voltage drops if the cables are too thin.
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