Master And Slave Functionality; Control Communication: Reference And Request Bursts; Figure 2-6 Master - Slave Communication - ND SatCom SKYWAN IDU 7000 Manual

2.3.2

Master and Slave Functionality

In a traditional star network the hub station acts as both, a traffic hub and a network manage-
ment station. In a fully meshed SkyWAN
since all stations can reach their peers directly over the satellite link.
The network management functionality however is always necessary and is normally provided
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by the SkyWAN master station. A master station must fulfil the following fundamental require-
ments:
- Indoor Unit requirement: The master station must be a SkyWAN
a frame plan generator (FPG) board.
- Satellite link requirement: The master station must be able to reach each other station in
the network over a satellite link with sufficient quality. In a star or hybrid network this means
that only peer or hub stations may perform the master role.
RDR license is required for a master station.

Control Communication: Reference and Request Bursts

The following figure 2-6 presents an overview of the control tasks performed by the master sta-
tion:
Figure 2-6 Master - Slave Communication
The control communicaton between master and slave stations is based on specific signal
types:
- Reference Burst: from Master to Slaves.
- Ranging and Request Bursts: from Slaves to Master.
The master station uses reference bursts to transmit the frame plan which specifies the trans-
mission times for every station in the network. Additional information is distributed with these
bursts:
- Slave station authentication.
2010-10-26
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network, the traffic hub functionality is not necessary
Network Design and Engineering Guide
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Essential SkyWAN Satellite Link Layer Features
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IDU 7000 equipped with
General Carrier Design
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