Dahua IPC-HDBW2431EP-S-S2 not working Serial information

Jan 20, 2019
8
0
Tehran
Hi im using this camera and i maintain some part of its board and when i plugged it to serial port and open putty i got these info and i have light on poe but no data on my poe switch
Anyone know whats wrong with this camera.
IMG_20231219_174326_955.jpg