LJD Digital Security Colossus Pro User Manual page 3

By default, you can input the username with "super" and null password to pass the
authorization.
Usage Tips: you can modify the password in this menu: [Others] - [User Management] -
[Local]
Step 3
When entered correct username and password, you will see the main interface as follows:
Figure 2-2 DVR Authorization
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■ Username: super
■ No Password