Advanced Configuration Features
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Horizon Compact Release 1.01.00 Wireless Ethernet Product User Manual – Volume 2
3.5 Horizon Compact Throughput Speed
When you purchase a Horizon Compact system you receive a unit capable of giving a throughput speed
of up to 400 Mbps. However, the actual throughput speed achievable for any given system depends on
the specific licensed speed key that you purchased with the system
You can upgrade your system to a higher licensed speed by purchasing an upgrade key and
reprogramming your system. Any upgraded system can be reconfigured to a lower system speed (CLI
command set system speed) as required, without losing the ability to return to the upgraded licensed
speed.
You may also downgrade the licensed speed to a lower value. A downgraded system may warrant a
refund of licensing fees. Once downgraded, new upgrade keys will be required for future upgrading.
System speeds do not have to be symmetrical (same speed in both directions on the link). Asymmetric
speeds (different speeds in each direction) can also be configured.
3.5.1 Maximum Throughput Speed
The maximum throughput speed is determined by the Horizon Compact licensed speed key you
purchase, however, it is important to note that the maximum speed is also determined by the Channel
bandwidth associated with the configured radio band, and the modulation scheme used. The channel
bandwidth is a function of the radio band and the modulation scheme is selected depending on the
desired maximum throughput. Configuring the Radio Band and System Mode determines the maximum
throughput capability and the modulation scheme applied.
Note that if a System Mode is set with a maximum throughput capability that exceeds the licensed speed
key purchased from DragonWave, then the maximum speed attainable will be limited to the licensed
speed purchased. By default the system speed is set to the licensed speed key purchased, however, it
can be reduced to a lower level without losing the ability to return to the purchased licensed speed.
(combination of channel bandwidth and maximum throughput).
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