Sometimes when you connect to a device using serial cable you might encounter the issue of distorted
characters or no image is displayed at all,this could occur due to a couple of reasons like wrong settings
on your terminal program ( example putty ), faulty cable or interface of device.
For more details you can check the guide below:
Fault Description
After a terminal connecting to the device, it cannot display anything or displays distorted characters.
Possible Cause
The power module of the device is faulty or the device is not powered on.
The serial interface connecting to the device is incorrectly configured.
The cable between the terminal and device is faulty or not firmly connected to the serial interface.
Troubleshooting Roadmap
Check the power indicator on the device's front panel to ensure that the power module is working properly.
Ensure that the serial interface is correctly configured.
Install the cable firmly or replace the cable.
Troubleshooting Procedure
Check indicators on the panel of the device. If the Power indicator is on, the power module is working
properly; if not, the device is not powered on. In this case, see Power Supply Fault for details.
Check whether the correct combo interface is selected and whether the physical attributes of the PC are
consistent with those of the serial interface. The default parameters are as follows:
Baud rate: 9600
Data bit: 8
Stop bit: 1
Parity check: None
Flow control: None
Ensure that the cable is firmly connected to the serial interface. You can replace it with a new cable to verify
whether the cable is faulty.
