2.9.2 Procedure OverviewWhen connecting the wireless system, use extreme care in conducting the site survey. An incorrectly performedsite survey can result in poor service area, frequent noise, and disconnection of calls.Notice• When installing the DECT 6.0 wireless system in an area where another wireless system (2.4 GHz) isalready installed, it is necessary to reconduct the site survey to find the optimum position for the CS.If you install the new CS in the same position as the old CS, it may result in a poor service area, frequentnoise, and disconnection of calls.• In this case, it is necessary to perform system initialisation. For details about the system initialisationprocedure, refer to "2.13.1 Starting the PBX".1. Investigate the installation siteRefer to "2.9.3 Site Planning".a. Obtain a map of the CS installation site.b. Identify the service area required by the user on the map.c. Plan the location of each CS, taking account of distance, building materials, etc.2. Prepare for site surveyRefer to "2.9.4 Before Site Survey".a. Check and assign the CS ID number to the PS.b. Assign a channel number to each CS by setting the DIP switches on the back of the CS.c. Supply electricity to each CS using an AC adaptor/battery box or by connecting them to the PBX.d. Install each CS temporarily as planned.Note• Install at least 2 m above the floor.• Place the antennas so that they are pointing in directions that are 90 degrees apart (for antennadiversity).3. Conduct the site surveyRefer to "2.9.5 Site Survey".a. Test the radio signal strength using the PS.Confirm that the radio signal strength level is "12" near the CS.Using the KX-TD7685/KX-TD7695Display example:RADIO STRENGTH<<< MEASURING >>> RADIO STRENGTHCH0 SLOT:06 SYNCL:12 0000/0100CS-ID:9005301234Press 1, 9, and POWERfor more than 2 seconds.1 99 00 to 4Channel No.To surveyspecific channelb. By walking away from the CS with the PS, check the radio signal strength. The radio signal strengthweakens as you walk away from the CS.c. Map the CS coverage area at radio signal strength levels "3" and "8".d. Make sure that adjacent CS coverage areas meet where the radio signal strength level is "7" to "9".e. Make sure that the radio signal strength level is greater than "3" at any location within the service arearequired by the user.Installation Manual 1832.9.2 Procedure Overview