Compex Systems 802.11N - Manual (Page 46)

Noise Immunity:
Check to enable. When enabled, it automatically adjusts the signal/noise level for best
performance. In low noise environment it is recommended to turn off this function.
Signal Strength Indicator (RSSI):
The default values are LED1-Red (10), LED2-Yellow (20), LED3-Green (40)
Each LEDs when turn on indicates the RSSI signal strength has hit over the value.
e.g. When LED1 and LED2 light up it indicate the RSSI is greater than 20.
When all 4 LEDs light up it indicate RSSI is greater than 40.
For long distant installation when signal strength expected to be about 20-30, the values can be
adjusted to display over this new range.
e.g. the LEDs values can be adjusted as follows:
LED1 (RSSI value=7)
LED2 (RSSI value=15)
LED3 (RSSI value=22)
LED4 (RSSI value=27)