Nortel 3050 Installation Manual

Also see for Companion C3060: User guide User guide

Contents

Nortel 3050 Installation Manual Manual pdf 14 page image

102 / Registering individual portablesMICS-XC Norstar-Companion Installer Guide P0881594 Issue 02Measuring RSSI for a C3050The Receive Signal Strength Indicator (RSSI) is ameasurement of the signal strength the Base Station receivesfrom the portable. The Base Station controls the powertransmitting mode of the portable. When the Base Stationreceives a weak signal, it instructs the portable to transmit inhigh-power. When the Base Station receives a strong signal, itinstructs the portable to transmit in low-power. The strongestRSSI value the portable displays is -45 dBm (in the US) and-44 dBm (in Canada). The weakest RSSI value the portabledisplays is approximately -94 to -100 dBm.To measure undirected RSSIYou can measure the signal strength between a portable and asystem-selected Base Station radio using undirected RSSI.1. Open the portable flap.2. Press Ò or Ò .3. Press °•ª•. The portable displays the radioID of the Base Station that the portable is linked to,followed by the signal strength and the power mode, forexample 03142 - 54 H. Hand-off occurs normallybetween the cell boundaries.In this example, the module is 03, the port is 14, and theradio is 2. The signal strength measured by the BaseStation is -54 dBm, and the H indicates that the portable istransmitting in high-power mode (an L indicates low-power mode).4. To end the connection, press ´ or ´ or close the flap.Measuring directed RSSIYou may want to measure the RSSI between a portable and aspecific Base Station radio. For example, you may suspect thatone of the two radios in a Base Station is not working properly.