Without HSS Chapter 9RADWIN 5000 HPMP User Manual Release 3.2.00 9-7Without HSSWhen selecting Ethernet services, the system automatically and transparently chooses theoptimal RFP.RFP and HSSWhen HSS is used, the RFP for the collocated radios must be selected manually.RADWIN 5000 HPMP radios use the Time Division Duplex (TDD) mechanism.Under HSS, TDD enables synchronization of transmission for the collocated units as shown inFigure 9-9:Figure 9-9: Radio Frame PatternFive RFP types (A to E) are available. Under HSS the RFP must be configured by the userdepending on the type of the radio products, services and channel bandwidth in accordancewith the Table 9-3 and Table 9-4.The tables describe the efficiency of the air interface according to the RFP type, radio prod-ucts mix, services and channel bandwidth. The tables may also be viewed in the RADWINManager and in the Link Budget Calculator. The efficiency of the air interface will vary accord-ing to the product used.Table 9-2: Radio Frame Pattern Table - RADWIN 5000 HBSRFP 5/10/20/40 MHzTDM EthernetE N/A Best fitTable 9-3: Radio Frame Pattern Table - RADWIN 2000RFP 40 MHz 20 MHz 10 MHz 5 MHzTDM Ethernet TDM Ethernet TDM Ethernet TDM EthernetB Available Available Available Available Available Available Best fit Best fitE Best fit Best fit Best fit Best fit Best fit Best fit Available AvailableTable 9-4: Radio Frame Pattern Table - WinLink 1000RPF 20 MHz 10 MHz 5 MHzTDM Ethernet TDM Ethernet TDM EthernetA Best fit Best fit Available Available N/A N/AB N/A N/A Best fit Available Best fit AvailableC N/A N/A N/A Best fit N/A AvailableD N/A N/A N/A N/A N/A Best fitE Available Available Available Available N/A N/A