Samsung SRN-4000 User Manual page 118

setup viewer
permission management
For more information, refer to "user" in the "System Setup" menu. (Page 42)
Admin
You can change the admin ID or the password.
ID allows alphanumeric characters only.
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If the admin ID is not used for access, you cannot change the ID.
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If the ID being used is changed, you will be automatically logged out.
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user
You can add, change or remove a user or users.
permission Setup
You can set the user permission.
118_ setup viewer