Vivotek FD9182-H User Manual page 20

VIVOTEK
Some, but not all special ASCII characters are supported: !, $, %, -, ., @, ^, _, and ~.
You can use them in the password combination.
11-3. Another prompt will request for the password you just configured. Enter the password
and then you can start configure your camera and see the live view.
20 - User's Manual