Digital Video Recorder User Manual 
 
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For -F series DVR, if you check the checkbox of Enable Password, every time when you log in to the 
DVR, the Unlock Pattern interface will pop up. If you uncheck the checkbox of Enable Password, 
when you log in to the DVR, the Unlock Pattern interface will not pop up. 
Step 4 Click the Apply button to save the settings. 
17.2  Configuring RS-232 Serial Port 
   
The RS-232 serial port is supported by DS-7300/8100HQHI-F/N and DS-7300/8100/9000HUHI-F/N 
series DVR.   
Purpose 
The RS-232 port can be used in two ways: 
  Parameters Configuration: Connect a PC to the NVR through the PC serial port. Device 
parameters can be configured by using software such as HyperTerminal. The serial port 
parameters must be the same as the NVR’s when connecting with the PC serial port. 
  Transparent Channel: Connect a serial device directly to the NVR. The serial device will be 
controlled remotely by the PC through the network and the protocol of the serial device. 
Step 1 Enter the RS-232 Settings interface. 
Menu >Configuration> RS-232 
 
Figure 17-4 RS-232 Settings Interface 
Step 2 Configure RS-232 parameters, including baud rate, data bit, stop bit, parity, flow control 
and usage. 
Step 3 Click the Apply button to save the settings.   
17.3  Configuring DST Settings 
Step 1 Enter the General Settings interface. 
Menu >Configuration>General 
Step 2 Choose DST Settings tab.