NetComm NTC-990 - Manual (Page 7)

RSSI (Green)
Of the three radio link status indicators, the green LED is used to show Received Signal Strength.
There are three possible states that the RSSI LED can operate in, based upon signal level:
Solid : Indicates the RSSI level is -90dbm, or greater (strong)
Flashing once per second : Indicates the RSSI level is -110dbm and -90dbm, (medium)
Off : Indicates the RSSI level is less than -110dbm (poor)
Revision 1.55 NetComm Limited
March 2009
6