Ceragon FA4800 - RFP: FA4800 Considerations; Hss Master; Table 10-4 Asymmetric

RFP: FA4800 Considerations Chapter 10
FA4800 User Manual Release 1.9.40 10-11
RFP: FA4800 Considerations
• When FA4800 radios are collocated with FibeAir 2000 radios using HSS, all radios
must use RFP B or E.
• The performance of FA4800 radios that operate with these RFPs can be seen in the
Link Budget Calculator.
• The choice of the unit to be the HSS master is a matter of convenience. There is no
technical reason to prefer a FA4800 over a FibeAir 2000 as HSS master or vice versa.
It is however, recommended that you use the FibeAir 2000 as master, since it will
enforce the correct RFP on the other collocated units.
The following list summarizes the effect of using RFP B or E on FA4800 radios. These effects
should be taken into consideration when planning new installations:
• Channel bandwidth 5 MHz is available under RFP E but is only supported for FA4800
Access products
• For products supporting a maximum throughput of 18.1 Mbps, the maximum Ethernet
throughput is 14.5 Mbps at 20 MHz channel bandwidth and 9.3 Mbps at 10 MHz chan-
nel bandwidth
• For products supporting maximum throughput of 22.5 Mbps, the maximum Ethernet
throughput is 21.4 Mbps at the 20 MHz channel and 9.3 Mbps at 10 MHz channel
bandwidth
Table 10-4: Asymmetric Allocation with Collocated Links - Scenarios
HSS Master HSS Client Scenario: If you try to... Result Remarks
FibeAir 2000
FA4800
Change master to
asymmetric allocation
Link down Reversion to 50/50 restores link
FibeAir 2000
• Releases prior to
2.4 - Link down
• Release 2.4 later
(FibeAir 2000 10T
and FibeAir 2000 50
series) - Link down
• Release 2.4 and
later (FibeAir 2000
100 ) - TDM ser-
vices stopped, link
set to transmission
ratio of master
Release 2.4 and later (FibeAir
2000 100 ) - Asymmetric
Allocation slider visible but
cannot be changed
FibeAir 2000
FA4800
FibeAir 2000
Change client to
asymmetric
Asymmetric Allocation slider
not displayed
You cannot do this
FA4800
FA4800
FibeAir 2000
Change client to
asymmetric
Asymmetric Allocation slider
not displayed
You cannot do this