Dell PowerConnect W-IAP108 Dell Instant Professional Install Guide - Page 2

All products using external antennas must be professionally installed, and the transmit power of the system must be adjusted by the professional installer/s to ensure that the system's EIRP (Equivalent Isotropically Radiated Power) is in compliance with the limit specified by the regulatory authority of the country of deployment. During deployment of the system and its initial setup, professional installer must ensure that the allowed EIRP limit is not exceeded (in the Country of exploitation of this equipment). To achieve this, the professional installer must use the approved/recommended antennas by Dell. The professional installer must enter the antenna gain in Controller software, using the following steps: 1. Login to the Instant UI. 2. In the Instant UI, navigate to the Access Point tab, select the specific access point and then click edit. 3. In the Edit Access Point window, select External Antenna to configure the antenna gain value. This option is available only for access points (W-IAP134/92) with external antenna support. 4. Enter the antenna gain values (dBm) for 2.4GHz and 5GHz bands. Additional attenuation between the device and antenna may have to be measured or calculated. The following formula can be used to calculate the EIRP limit related RF power based on selected antennas (antenna gain) and feeder (Coaxial Cable loss): EIRP = Tx RF Power (dBm) +GA (dB) - FL (dB) Table 1 Formula Variable Definitions Parameter Description EIRP Tx RF Power GA FL Limit specific for each country of deployment RF power measured at RF connector of the unit Antenna gain Feeder loss (including the connectors' loss) 2 Professional Installation Guide | Supplement