User`s manual
    EPN4122/4122i/4220/4220i          
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1.  Introduction   
The EPN series is a high-performance IP speed dome supporting up to 22x optical-zoom and dual streams 
from H.264 and MJPEG. The series comes in two types: outdoor (EPN4122 / 4220) and indoor (EPN4122i / 
4220i). Equipped with a weather-proof (IP66) housing, the outdoor models meet a wide variety of needs 
for outdoor surveillance. 
EverFocus IP speed dome provides Auto Tracking function to detect movement in the camera’s field of 
view; and variable pan/tilt speeds ranging from 360°  per second to 0.01°  per second with 0.1°  position 
accuracy for fast and accurate monitoring. A maximum of 256 preset points can be configured for precise 
location of target areas. Features like 360°  endless rotation, 16 tour sequences, 4 patterns are all provided. 
The IP speed dome also features Wide Dynamic Range (WDR) function, which can provide clear images 
even under back light circumstances where intensity of illumination can vary excessively. The DNR (Digital 
Noise Reduction) function is designed for reducing the noises in the images, allowing the camera to better 
distinguish between real motion and image noise, and thus results in a possibility to store more video 
evidence on the connected storage devices. 
A built-in micro SDHC card slot is also provided. You can power the camera by connecting the camera to a 
24 VAC power supply. Since the EPN series IP speed dome conforms to ONVIF / PSIA for compatibility with 
other network video devices, it interoperates with a wide variety of hardware and software systems. You 
can also use EverFocus Mobile Applications to remotely view the live views of the cameras through your 
handheld devices; or use EverFocus CMS to remotely manage multiple IP devices connected on the 
network. 
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Outdoor 
(EPN4122 / 4220)
Indoor 
(EPN4122i / 4220i)
Item Name 
No.  Item Name  No.  Item Name  No.  Item Name 
1  Top Housing  2  Outer Housing    3  Camera Main Body 










