Product Function Description   This device is applied to closed circuit TV monitor system, bus alarm system, and RS485 and RS232 data communications. And it is a classic product for the installment, debugging, maintenance and exclusion of equipment failure of site operators to improve the efficiency of site engineers.   This part describes product features and basic operation of the menu, including menu calling, menu selecting, parameters changing, parameters saving and menu exiting.   Image Testing     Using video cable to connect front camera with security tester directly, the built-in monitor can help to check the camera image visually and conveniently, and with VIDEO IN, it's easy to read the data.   Control of the Ball Machine and Decoder     Under the normal communication of ball machine or decoder RS485/RS232 with the tester, users can use the control buttons in front panel to control the up, down, left and right rotation of cloud platform, and adjust the varifocal, focusing and aperture value of the ball machine.        Set-up Preset and Go-to Preset    With the application of preset, ball machine or decoder with preset can save the horizontal angle, tilt angle, camera focal length and other position parameters of present cloud platform, so that operators can go to preset with command conveniently and fast, adjusting the cloud platform and camera into this position. This function is also applicable for calling menu of ball machine or camera.   Continuous Data Transmission     It will automatically keep transmitting data if the power is on to support the data receiving of another tester or computer, and could be used to test the data line state. Generation of Video Signals     It can generate three full screen output colors, blue, black and green, and could be used to test video line state and the screen condition of LCD monitor.   Lithium Battery Charging    Security tester should be charged by special 8.4V lithium battery charger.   Product Features   Handheld 3.5 inch TFT high DPI monitor Automatic identification of multi-system OSD menu for product functions Various ball machine control protocol and baud rate Support 0-255 address Support changeable ball machine speed Support automatic scanning and sending of protocol and address Support set-up preset and go-to preset Support parameter program of ball machine and camera Support RS485/RS232 data input and presentation Automatic identification of protocol and address in accordance with received date code Support continuous RS485/RS232 data transmission Support video intensity testing Support power saving mode, with automatic power-off under 1-30minutes no action. Controlling rotation, lens focal length, focus etc. of the ball machine through data interface. Buzzer is able to be on or off Double indicators like LED light and buzzer for sending and receiving data Support various single color signals, able to be used as transmitter of video signal for LCD screen testing Support independent cease order Loaded with two 2000MA batteries.                   Performance Parameters Screen TFT 3.5inch，DPI 320*240 Shell material ABS engineering plastics Battery Lithium battery DC8.4V Overall power consumption ≤1.5W（according to different functions） Charger Input AC100-220V/output 8.4V/ 1A Video input pattern PAL/ NTSC Video output 1.0Vp-p PTZ Control protocol PELCO-D、PELCO-P、SAE、YAAN etc. Baud rate 1200bps、2400bps、9600bps、19200bps Data interfaces   RS485、RS232 Working temperature 5℃～+50℃ Dimension 163MM*105MM*41MM Weight 380g Software edition Ver 2.3