92Back-up Back-up method VCR, Backup via IE ,CD-R back-up(Include CD Backupplayer),USB backupPTZ Control RS485,supports PELCO D and other protocolsRS232 Controls DVR host through RS232Alarm Input4-CH: 4 Alarm Inputs8-CH: 8 Alarm Inputs16-CH: 16 Alarm InputsAlarm Output 1 (Programmable alarm output duration)Remote Controller Infrared Remote ControllerControl Device Front Panel, Remote ControllerMulti-language English, German, French, Dutch, DanishHDD 1 or 2 HDDs, (160Gb or above )MechanismTemperature 5°C~40°C (41°F~104°F)Humidity Under 90%Dimension 430mm(W) x 400mm(D) x 92mm(H)Weight 8 KG (w/o HDD)Power Switching Power (DC 12V, 6.67Amp)12. FAQ (Frequently asked questions)Question:Why are all pictures after installation displayed in B/W and not clearly, although all camerasare color?Answer:The recorder supports PAL and NTSC mode. If no cameras are detected at booting therecorder, the DVR will automatically go into NTSC mode. If then color PAL cameras aredetected, the picture will be displayed in B/W and not clearly.Solution:• Before booting the DVR, switch on the cameras. Then boot the DVR, it willautomatically detect whether a PAL or NTSC signal is received from the cameras.• The user can select PAL and NTSC during the DVR is booting. To do so, pressfollowing buttons during the DVR is booting:PAL Press and hold “MENU + ►”NTSC Press and hold “MENU + ◄”Automatic recognition Press and hold “MENU + ENTER”