PLANET ICA-3250V - Manual (Page 15)

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2.4.3.2 I/O PIN definition
◊ GND (Ground): Initial status is LOW
◊ DO (Digital Output): 5VDC
◊ DI (Digital Input): Max. 50mA, 5VDC
2.4.4 Factory Default
If you forget your password, please follow the steps to revert back to default
value.
1. Remove the power and Ethernet cable. Press and hold the button as shown in
the picture below.
2. Connect power to the camera again, and do not release the button during the
system booting.
3. It will take around 30 seconds to boot the camera.
4. Release the button when camera finishes proceed.
5. Plug in the Ethernet cable, and re-login the camera using the default IP
(http://192.168.0.20), and user name (admin), password (admin).