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3.0 Configuration
3.3 Point to Multipoint Network
In a Point to Multipoint Network, a path is created to transfer data between the Master modem and nu-
merous remote modems. The remote modems may simply be Slaves with which the Master communi-
cates directly, and/or Slaves which communicate via Repeaters. Some or all of the Repeaters may also
act as Slaves in this type of Network, i.e. the Repeaters are not only storing and forwarding data, but are
also acting as Slaves. Such Repeaters may be referred to as ‘Repeater/Slaves’. Point to Multipoint is
enabled by setting register S133 to 0 (
ATS133=0, Network Type
).
3.3.1 Operating Modes / Unit Types
In a Microhard Point to Multipoint Network, three unit types or operating modes are available: the Mas-
ter, the Repeater, and the Remote. The
Master
modems role is to provide network synchronization for
the system, which ensures all units are active and able to communicate as required. The Master con-
trols the flow of data through the system; all data passes through it. The diagram below shows a unit
configured as a Master.
Slave
Master
Drawing 3-1:
Point to Multipoint Network Topology
Drawing 3-2:
Point to Multipoint Master
Master
Slave
Repeater
Master
Coverage
Area
Slave
Slave
Slave
Slave
Slave
