Type 2 : X-frame method
Type 5 : LongGop & ROI method
(It is not written in the manual, so it is written as type 2,5 in the menu.)

Type 2 : Below 3 are the unit of the compression rate. The higher the compression rate means the higher the “loss compression” rate leads to lower the traffic. However, there may be a deterioration in image quality.
+ LOW
+ NORMAL
+ HIGH