Telex DN9848 Loudspeaker Processor User Manual

Security and other Set Up Options 

 

 

20 

 

 

Step through the Set Up menu to the Panel Lock menu page. 

Use the left and centre knobs to set a password of 12 characters, including blank spaces, 

made up of letters, numbers and/or symbols. 
 

Important! Note that preliminary and subsequent blank spaces are recorded as part of the 

12-character password; therefore if you use a short password, the characters must be re-
entered in exactly the same position to unlock the panel.  To avoid confusion, either record 

the blanks as part of the password or enter the word at the far left of the display.  

Turn the right-hand knob clockwise to cycle to the required lock type.  

Press HOME to apply the Panel Lock. 

The Home page now indicates that the unit is ‘Locked’.  The lock state is retained after power down, 
and will be indicated on the Home page when the unit is powered up again. 

 

Step through the Set Up menu to the Panel Lock page. 

Use the left and centre knobs to enter the password.  Note that the letters must be in the 

same position as when the password was set. 

Turn the right-hand knob clockwise to apply the password. 

If correct, the display will report ‘UNLOCKED’.  Press HOME to exit the page and return to 
normal operation.  

 
If you have entered the wrong password, the DN9848 will flag it as incorrect and return to the 

Panel Unlock page for a further attempt. 

System Protect offers limited operational control 

while protecting against unauthorised users 
tampering with key parameters that may result in 

loudspeaker damage.   

 

  The output MENU ACCESS buttons and Output Mute controls are disabled, but the inputs can still 

be edited.  

  User memory settings can be recalled or stored, but factory and system memories are 

inaccessible. 

  The full Set Up menu is still available. 

Panel Lockout takes priority over the System Protect state.