Radwin 5000 HPMP, User Manual

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RADWIN 5000 HPMP User Manual Release 3.5.70 4 ‐ 28
Installing Fixed Subscriber Units
Connecting the HSU to the Network
The same considerations as for an HBS hold for the HSUs.
Powering up the HSU from a PoE device
The same considerations as for an HBS hold for the HSUs.
Establishing a Radio Link ‐ Aligning HSUs to a HBS
Use the HSUs buzzer to perform HSU antenna alignment to a HBS.
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To align an HSU to its HBS:
1. Ensure that the sector antenna of the HBS is aligned precisely to the sector it is
intended to cover. Use a compass and topographical maps to do this.
2. For both the HBS and HSUs: Using a coax cable with N ‐ Type connectors, connect the
vertical polarization connector of the antenna to the ANT 1 connector of the ODU.
Then, using a second coax cable with N ‐ Type connectors, connect the horizontal
polarization connector of the antenna to the ANT 2 connector of the ODU.
3. Ensure that power is connected to the site PoEs across the sector.
An unaligned HSU starts beeping 20 seconds after power up, and continues beeping
until it is aligned to the HBS.
The alignment details are described in the next two steps. “Antenna” refers both to
an external antenna and an integrated antenna. The two steps should be carried out
for each HSU in the sector.
4. Make a horizontal sweep of 180 degrees with the HSU antenna so that the strongest
signal from the HBS can be detected.
5. Slowly turn the HSU antenna back towards the position of the HBS, listening to the
tone until the best signal is reached. See the following figure for audible signal
variations.
Figure 4 ‐ 38: Beep Sequence for antenna alignment
Note
There is no particular reason to use ANT 1 and ANT 2 in that order: They just
have to be the same for each ODU in the sector. Further, adopting a
convention like “ANT 1 is always vertical” avoids mistakes across a large
sector.