18 en | System Installation and Configuration Easy SeriesF01U087835 | 02 | 2008.10 System Reference Guide Bosch Security Systems, Inc.2.4 Initial System Startup1. Apply AC power to the system.2. Refer to Table 2.2 for the Initial System Startup sequence.Table 2.2 Initial System Startup Sequence (No wLSN devices discovered)2.5 Perform the RFSS Site Test using the wLSN Installation ToolThe wLSN Installation Tool communicates signal strength levels, noise levels, signal-to-noiseratio (SNR), and packet success rates. Use it to determine the best locations for wLSN deviceinstallation.Stage Time Interval Control Center wLSN Hub1 0-15 sec Intermittent flashing green icon LED on steady2 15-45 sec Flashing amber circle3 45-75 sec Single rotating amber segment4 75 sec Solid green circleiNOTICE!Before permanently installing any wLSN device, verify that the radio-frequency signal strength(RFSS) between the planned device location and the planned wLSN Hub location isacceptable.! CAUTION!If you have wireless devices that you will not immediately install, reinsert the battery tabs orremove the batteries to prevent battery depletion.iNOTICE!You can perform the RFSS site test using the wLSN Hub and the specific device you wish totest. However, you must use the Installation Tool with the wLSN Smoke Detector. You cannotdetermine RFSS with the detector itself. Refer to Section 3.1 Perform a RFSS Site Test with theHub and the Device, page 28 for instructions.