Hub Site Synchronization (Hss) Unit; Gsu - Radwin 5000 HPMP User Manual

Hub Site Synchronization (HSS) Unit

Outdoor (Ruggedized) DC PoE Device
Figure 3-7: Ruggedized DC-PoE Device: Input is -20 to -60 VDC (single input)
Hub Site Synchronization (HSS) Unit
The HSS unit synchronizes collocated ODUs to prevent self interference. It is particularly use-
ful at a multi-sector base station employing several HBSs.
A single HSS unit supports up to ten collocated ODUs. In addition to each unit being con-
nected to its PoE device, the collocated unit has an additional cable that is connected to the
HSS Unit. The HSS Unit is a compact, weatherproof (IP67) connector box that is installed on
the same mast as the ODUs. All collocated units connect to this box using CAT-5e cable.
Cables in prepared lengths are available for purchase.
The HSS unit is supplied with ten protective covers; any port not in use must be closed with a
protective cover.
Figure 3-8: HSS Interconnection Unit
See Chapter 9 for further details about the use of HSS.

GSU

The GPS-based synchronization unit (GSU) is designed to handle inter-site interferences
under large-scale deployment scenarios.
The GSU is an outdoor unit consisting of a standard WinLink 1000 enclosure, a GPS antenna
and a PoE device.
RADWIN 5000 HPMP User Manual
This unit may be used or both the HBS and the HSUs. It will not
support Gigabit performance on the HBS.
Release 3.2.00
Chapter 3
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