-11-Important:Before setting up the camera for a configurationwhere the camera's RS485 data port is used forcamera control (pan, tilt, etc.) by the system con-troller, the camera's DIP switches must be con-figured to specify the unit number and communi-cation parameters. (This page)If DIP switch setting is not performed, the systemcontroller control will not be possible and cam-era setup will have to be performed again. Besure to check the DIP switch settings before set-ting up the camera. Heat radiationThe surface of the camera radiates heat. Ventilationholes should be provided when installing the camera inan enclosed ceiling or confined location where heat canbuild up. Beware of high humidity.If the camera is installed when humidity is very high,moisture may collect in the camera and cause thedome to become foggy. If the dome becomes foggy,remove it when the humidity is low and eliminate themoisture inside the camera, and then replace thedome. (page 9)Ventilation holesDIP SWITCH SETTINGSIn a configuration where the camera's RS485 data port is used for camera control (pan, tilt, etc.) by the system con-troller, the camera's DIP switches must be configured to specify the unit number and communication parameters.The camera mounting base needs to be removed to access the DIP switches. See steps 1 to 3 on page 16 for infor-mation about how to remove the camera mounting base. Communication Parameters (DIP Switch 2)The factory default settings of these DIP switches are all OFF.Switch 1: Terminator (Internal Termination Resistance)Set it to ON in the following situations.When only one camera is connected.When only one camera is connected via a daisy chain over a long distance.Switches 2 through 4: Communication ParametersThis setting toggles between 2-line and 4-line communication.Use these switches to select the communication protocol beingused.1 2 3 4ONTerminatorCommunicationParameters1 2 3 4ON4-line Communication1 2 3 4ON2-line Communication1 2 3 4ON1 2 3 4ON5 6 7 8DIP Switch 1 DIP Switch 2