Unfortunately, if PuTTY is used for serial connection output of IOT2050 Edge Device, characters cannot be rendered as they are expected. The situation can be seen below.
If MobaXterm is used instead of PuTTY, the output will be look like as expected.
If PuTTY is not used as full screen the situation gets worse.
Therefore, we strongly recommend the use of MobaXterm instead of PuTTY or some other software for the USB TTL connection output of an IOT2050 Edge device.