72 Overview of Navigation and ControlsPlease note the following contents are based on our 16-channel 2U series product. Fordetailed operation instruction of other series products, please refer to the User’s Manualincluded in the resources CD.Before operation, please make sure:z You have properly installed HDD and all the cable connections.z The provided input power and the device power are matched.z Always use the stable current, if necessary UPS is a best alternative measure.2.1 Boot up & Shut Down2.1.1 Boot upPlease follow the steps listed below to boot up the device.z Connect the device to the monitor and then connect a mouse.z Connect power cable.z Click the power button at the front or rear panel and then boot up the device. After devicebooted up, the system is in multiple-channel display mode by default.2.1.2 Shut DownNotez When you see corresponding dialogue box “System is shutting down…” Do not click poweron-off button directly.z Do not unplug the power cable or click power on-off button to shutdown device directly whendevice is running (especially when it is recording.)There are three ways for you to log out.z Main menu (RECOMMENDED): From Main Menu->Operation->Shutdown, click shutdownbutton, you can see device shuts down.z From power on-off button on the front panel or remote control. Press the power on-off buttonon the DVR front panel or remote control for more than 3 seconds to shutdown the device.z From power on-off button on the rear panel.2.1.3 Auto Resume after Power FailureThe system can automatically backup video and resume previous working status after powerfailure.2.1.4 Replace Button BatteryPlease make sure to use the same battery model if possible.We recommend replace battery regularly (such as one-year) to guarantee system timeaccuracy.Note:Before replacement, please save the system setup, otherwise, you may lose the datacompletely!