Sharp HN-VA100U Operation Manual page 19

Communication speed*
Green
Orange
Red
* The speed indication is only correct after communication has begun. The speed
indicated is an approximate maximum for data transfer by UDP between
adapters. It is not the effective speed between computers on the network. If
more than two adapters are connected, it is the speed between the two adapters
with the best communication speed.
Indicators on the PLC adapter
The adapters are able to communicate at a
speed of 30 Mbps or higher.
The adapters are able to communicate at a
speed of 10 to 30 Mbps.
The adapters are able to communicate at a
speed of no more than 10 Mbps.
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