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User Manual
Enter into “Main Menu” -> “System Setup” -> “COM”, the interface as left below picture. You can make your DVR communicate with COM device via this setting. RS485 can control
PTZ and keyboard at the same time, support half-duplex. RS485 specification: serial port type, serial port device, baud rate, data bit, stop bit, check bit. Can be used in custom set for
serial port type, PTZ, keyboard, transparent interface, ATM.
Baud rate: Set the same baud rate with the COM device, if you want to connect PTZ or control keyboard, you have to set the same baud rate with PTZ or control keyboard.
Data bit, stop bit, check bit: Set the data bit, stop bit and check bit according to the PTZ protocol code. Commonly, the PTZ protocol’s default date bit is 8, check bit is None,
stop bit is 1.
4.7.4 COM Setting
Interface type: RS485 half-duplex; please choose suitable one according to serial port&RS484 port, for details, please take a reference at"3.3.5 RS-485 connection".
keyboard address: set the host ID in general setting page; When one keyboard connect with several DVRs in the parallel way, the keyboard is used to control and differentiate
different DVR’s identify code.
4. Preview Settings
In the “Output Settings” interface, select “Preview Setting” to enter the setting interface (as right below picture). This function is mainly to achieve real-time preview of the channel
output.
In other words, the preview will in accordance with the selected channel format and sequence. Some series devices do not support CVBS output, specific please kind in prevail.
