The Wireless Setup Tool, model WST, is required for installation. See document #5401608 for more information regarding the setup tool. The tool is used to check signal strength between all devices among other features. It is strongly recommended a site survey be conducted before installing the wireless system. Failure to conduct a thorough site survey may result in communication errors later. The installer should determine where the transmitter will be located. The receiver shall be mounted adjacent to the fire panel. Typically, higher on a wall allows the receiver to “see” over obstructions and provides a better path for the wireless signal. Keep in mind that the metal framing of a drop ceiling can affect the signal. The receiver should not be installed near a large metal object as that could attenuate the signal. After identifying the location of the transmitter and receiver the installer should walk around and in between the areas where the transmitter and receiver will be installed and look for possible obstructions to the wireless signal such as metal fences, metal doors, wired glass and other metal objects. The installer should investigate to determine if the normal business processes throughout the day might result in an obstruction between the transmitter and receiver. Possible obstructions could include the movement of equipment or fork trucks, traffic patterns for shipping, deliveries, trash pickup, food trucks, etc.