Hardware Installation Chapter 9RADWIN 5000 HPMP User Manual Release 3.2.00 9-3• HSS Client-Continue Transmission (HSC-CT): If the unit loses synchronizationwith the HSS Master, the link remains active. However, without synchronization pulses,it is possible that this unit will cause interference.• HSS Client-Disable Transmission (HSC-DT): If the unit loses synchronization withthe HSS Master, the link is dropped until the synchronization pulses resume. This set-ting prevents the unit from causing interference.The remote ODUs that are not located at the hub site, are called Independent Units.Hardware InstallationConnecting an HSS UnitA single HSS unit supports up to ten collocated ODUs. In addition to each unit being con-nected to its IDU or PoE device, the collocated unit has an additional cable that is connectedto the HSS Unit. The HSS Unit is a compact, weatherproof (IP67) connector box that isinstalled on the same mast as the ODUs. All collocated units connect to this box using CAT-5ecable. 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 aprotective cover.Figure 9-4: HSS Interconnection UnitTo connect an ODU to an HSS unit:1. Unscrew the protective cover from the port marked SYNC 1.2. Connect the RJ-45 connector from one end of the prepared CAT-5e cable to SYNC 1.3. Connect the other end of the CAT-5e cable to the ODU connector labeled SYNC.4. Tighten the protective seal that is on the prepared cable over the RJ-45 connector.5. Repeat for all ODUs that are to be collocated at the hub site. The next ODU to beconnected is inserted in SYNC 1, SYNC 2, followed by SYNC 3 and so on.Note• For a single HSS unit, ensure that the collocated units are connectedin sequence from SYNC 1. If an ODU is removed from the hub site,then all remaining ODUs must be reconnected to maintain the con-nectivity.• You may cascade (daisy-chain) two or more HSS Units with an HSScable. The method is described in detail below.
