User's Manual

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217
NOTE: In TDM link optimization mode, burst duration should be selected so as to achieve the
lowest latency consistent with throughput sufficient to support the maximum allowed
configuration of internal TDM interfaces at the most robust modulation mode.
1231HTable 29 lists
the frame duration thresholds for TDM operation. Frame duration depends on burst duration.
Burst duration should be selected by testing each of the values available in the applicable
bandwidth combination, starting with the shortest burst duration, until the resulting frame
duration falls within the limits listed in
1232HTable 29.
Bandwidth Combination
(MHz)
Frame Duration
(microseconds)
Burst Duration
(microseconds)
2079 µs 726 µs
> 2079 µs, 3145 µs 1088 µs
30
> 3145 µs 1451 µs
5/10/30 > 0 1088 µs
2079 µs 726 µs 15/30
> 2079 µs 1451 µs
2079 µs 726 µs
> 2079 µs 1451 µs
15
Not used 2176 µs
10/15 > 0 2176 µs
2747 µs 1088 µs 10
> 2747 µs 2176 µs
5 > 0 1088 µs
Table 29 - Burst Durations in TDM Link Optimization
Slave Receive to Transmit Gap: This is a calculated value (default is 29).
TDD Holdover Mode: Strict or Best Effort