ARM Electronics DVR4CD - Manual (Page 38)

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Buzzer Setup
Alarm Input Alarm On / Off, when alarm activate.
Video Loss Alarm On / Off, when camera disconnected.
Key Input Setup key input sound.
Password
Current Password Input current password ( Initial password is 1234 ).
New Password Input new password.
Re-enter the Password Re-confirm new password.
Save & Exit Applying new password.
Administrator Password