The first three characters of serial numbet is ABC, where
A : Platform (D/E/B/I)
B : camera form factor
    1: cube camera (Megapixel Cube Camera)
	   Unit Type = Megapixel IP Cube Camera
	2: box camera (Megapixel IP Camera)
	   Unit Type = Megapixel IP Camera
	3: bullet camera with fixed lens (Megapixel IP Camera)
	   Unit Type = Megapixel IP Camera
	4. bullet camera with veri-focus lens (Megapixel IP Camera)
	   Unit Type = Megapixel IP Camera
	5. indoor dome camera with fixed lens (Megapixel IP Dome)
	   Unit Type = Megapixel IP Dome
	6. indoor dome camera with veri-focus lens (Megapixel IP Dome)
	   Unit Type = Megapixel IP Dome
	7. outdoor dome camera with fixed lens (Megapixel IP Dome)
	   Unit Type = Megapixel IP Dome
	8. outdoor dome camera with veri-focus lens (Megapixel IP Dome)
	   Unit Type = Megapixel IP Dome
	9. With D/E models
	   it is 2" dome camera
	   Unit Type = Megapixel IP Dome
	   With B/I models
	   it is PTZ cameras (ePTZ, miniPTZ, PTZ).
	   Unit Type : Megapixel IP PTZ Camera,
	               Megapixel IP Speed Dome
				   ePTZ Camera

    fisheye camera :
	  Unit Type = Hemispheric Camera

C : serial number started from 1
