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ROSS
MN/13070
5.11 Service Bound Advanced Switching
Advanced Switching (per Service Bound) allows each Service Bound to use a specific
modulation type based on the requested bit rate. This results in optimized spectral efficiency and
bandwidth utilization for the specific Service Bound. For example, a Service Area can have
multiple Service Bounds. Each Service Bound will have different characteristics, such as EIRP
or G/T, which affect the link budget, transmit power, and bit rate. The Service Bound that is in
the center of the satellite beam may be able to support a more efficient modulation rate than the
Service Bound that is on the fringe of coverage.
The Service Bound Advanced Switching works in conjunction with the Advanced Switching in
VMS (see VMS 3.7.x User Guide for more information). When the vessel moves into a new
Service Bound, the Advanced Switching modulation table (if not empty) is transmitted to VMS
where it replaces the Advanced Switching configuration stored in VMS's database for the
roaming modulator. The modem is reverted and switched back up using the new Advanced
Switching configuration provided by the Service Bound configuration in ROSS.
5.12 Edit Coordinated Areas
Editing coordinated areas is very similar to SB editing and all the same tools will work to create
these control boundaries.
Comtech EF Data, Vipersat Products
Page 60 of 87
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