When VC after commissioning, VPC500 camera connection VP903X series terminals, the image is displayed correctly, but by remote control and web pages, were unable to turn the camera control.
VPC500 doesn't show any alarm panel and no failure logs in VP903X web page
1. check the line of control, you can use the Replace method to replace the control lines on the device to other devices without problems for testing, the tests are normal, indicating that the control is no problem;
2. check the terminal COM1 / 2 settings, port configuration on the device to see whether the problem with the actual physical connections matching, and can refer to other devices without problems, comparing the test results is no exception;
3 checkthe VPC500 panel configured COM protocol, protocol configuration not found, the agreement compared with other equipment problems, discrepancies, consistent with the protocol configuration adjustments, further testing, troubleshooting
According to the principle of the lens and connecting terminals, start to troubleshoot physical cable connection, and then check the configuration of a specific port, and finally set the port agreement
Problem can be usually solved through reconfiguration