User manual

001-5099-000 HiPR-900 User Manual
64
6.7.3.9.1 TDMA Segment Configuration
While TDD provides the best performance for point-to-point and point-to-multipoint configurations,
please enable “Timed Preset Segments” (in order to avoid RF collisions) for networks with a repeater
unit.
For operations through a single repeater (two RF coverage areas, Figure 68), TDMA allocates bandwidth
to the Master, repeater, and remote in turn, to avoid collisions. For a three-unit network configuration,
that includes a repeater unit, enable “TDD mode” and “Timed Preset Segments”. The time between the
syncs (known as a dwell period) is equally distributed between the three units (Figure 69).
Note: TDD Mode must be enabled in order to enable “Timed Preset Segments”.
Figure 68 - Two RF Coverage Areas: Opeartion through a single repeater
Figure 69 - Example of timing breakdown for a 3 unit Network: Preset Time Segments
Similarly, for a four-unit network configuration with a repeater (as in Figure 70), enable “TDD mode” and
“Timed Preset Segments”. The time segments will be equally distributed between the master, repeater,
and remotes.
Repeater
Remote #1
Master
RF Coverage 1
RF Coverage 2
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