Vanu Inc. 0PW1P0010 Benutzerhandbuch
Vanu Software Radio GSM Base Station
8
Troubleshooting
The power supplies should each show a green LED when the server is turned on. There are four LEDs on
the front of the server by the power button. If one of the power supplies is not working, the heartbeat LED
(second from the top) will be amber instead of green. The hard drive LEDs (the bottom two) will blink on
and off as they are used. The hard drive LEDs will show red if there is an error with the hard drive.
Protium RF Front End
The Protium Front End Unit is comprised of two boxes, one that houses a duplexer and filter and a second
which contains the RF up/down conversion and digital hardware. The RF signal is received through both
the Main Antenna port and the Diversity Antenna port. RF data that is received from the Main Antenna
runs through the duplexer, out the Main RX SMA port, over a cable to the RX port on the RF front end.
The signal is then converted to digitized data and sent out through an Ethernet port to the BTS.
An RF signal that is received by the Diversity port is run through a filter and transferred to the RF Front
An RF signal that is received by the Diversity port is run through a filter and transferred to the RF Front
end via the Diversity RX ports on both devices. The RF front end then digitizes and sends the data to the
BTS via an Ethernet port.
Digitized data is received from the BTS though the same Ethernet port as it was transmitted. The
Digitized data is received from the BTS though the same Ethernet port as it was transmitted. The
digitized data is then converted to an RF signal, and sent to the PA through a cable from the TX SMA
port. The data runs through the PA and enters back into the Protium unit through a cable to the PA port,
where it is then transmitted out the BTS antenna.
There are two LED lights on the front of the Protium unit. The first is a green light which indicates that
There are two LED lights on the front of the Protium unit. The first is a green light which indicates that
power is active on the box. The second light is red, and when illuminated, indicates that there is an alarm
in the system which has been triggered.