User's Manual

ALFOplus 24GHz (North America) - Release 01.05.0x - MN.00395.E - 004 63
The maximum range of Fade Margin for ALFOplus is 30 dB. For extra attenuation is required an external
attenuator.
In case the link budget presents a value of Fade Margin to be measured higher than the actual range it is
necessary to apply an “External Attenuator” and insert the correspondent attenuation on input data menu.
The Fade Margin Calculation is traffic affecting.
Warning: Fade margin measure works by disabling ACM engine on local and remote equipment.
7.14 PROVIDE SYNCHRONISM TO EXTERNAL EQUIPMENT
Once the SIAE equipment is synchronized, the clock signal has to be passed toward external equipment or
other SIAE equipment. SIAE equipment can give the synchronization signal through different interfaces.
Fig.28 - Provide synchronism
The interfaces that are available to provide synchronization to other SIAE or external equipment are:
• Radio: this interface is passing the synchronism automatically to the remote equipment. No config-
uration is needed.
• GE Interfaces: the TX CK of the all GE lines (i.e. LAN 1 and 2) is locked to the SETS. In this way,
the CK can be passed through these connections to other equipment provided that they support
Synchronous Ethernet. The GE Interfaces when used in Electrical can provide the CK signal to other
equipment: in this case the equipment port role must be “Master”. Once the synchronization is en-
abled in the SIAE equipment, automatically all the LAN interfaces are locked onto the SETS. This
implies that the synchronization signal is automatically provided onto all the LAN interfaces.
The choices of the interface to pass the clock signal depend strictly on the external equipment. This means
that in first place it is necessary to establish the possible sources of synchronization available on the ex-
ternal equipment. Depending on the availability of these sources, SIAE equipment will be configured with
the correspondent interface to pass the clock signal.