Security and other Set Up Options

To set a Panel Lock

1Step through the Set Up menu to the Panel Lock menu page.

2Use 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.

3Turn the right-hand knob clockwise to cycle to the required lock type.

4Press 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.

To remove the Panel Lock

1Step through the Set Up menu to the Panel Lock page.

2Use 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.

3Turn the right-hand knob clockwise to apply the password.

4If 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.

7.3.2System Protect (Page 3)

System Protect offers limited operational control while protecting against unauthorised users tampering with key parameters that may result in loudspeaker damage.

When System Protect is on

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.

Note Panel Lockout takes priority over the System Protect state.

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Telex DOC02-DN9848 specifications To set a Panel Lock, To remove the Panel Lock, When System Protect is on
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DOC02-DN9848, DN9848 Loudspeaker Processor specifications

The Telex DOC02-DN9848, commonly referred to as the DN9848 Loudspeaker Processor, is an advanced audio processing device designed to enhance sound quality in both live and recorded environments. With a sleek and modern design, the DN9848 is engineered to meet the demanding needs of professional audio applications, be it in concert venues, theaters, or broadcast studios.

One of the key features of the DN9848 is its comprehensive processing capabilities. Equipped with a powerful DSP (digital signal processing) engine, it offers extensive equalization options, dynamic range control, and advanced crossover functionality. The device utilizes up to 48 input and output channels, allowing for unparalleled flexibility in routing audio signals. This makes it ideal for installations that require precise control over multiple loudspeakers.

The DN9848 also boasts an intuitive user interface, which facilitates straightforward navigation through its various functions. The front panel features a large LCD display that provides clear visibility of parameters, and a selection of knobs and buttons enables easy adjustments. For remote operation, the device can be controlled via Ethernet, allowing technicians to make changes from virtually any location.

Another standout aspect of the DN9848 is its customizable algorithms that accommodate different speaker systems and acoustical environments. Users can fine-tune the processor to optimize performance for specific venues or loudspeakers. The device supports both FIR (finite impulse response) and IIR (infinite impulse response) filters, providing users with the flexibility to deploy advanced filtering techniques according to their needs.

The DN9848’s robust connectivity options further enhance its utility. It features standard analog XLR connectors, as well as digital interfaces that include AES/EBU and Dante. This multi-format compatibility ensures seamless integration into existing audio setups, making it a versatile choice for audio professionals.

In terms of reliability and durability, the DN9848 is built to withstand the rigors of the professional audio world. Its rugged chassis and high-quality components ensure that it can perform consistently in various conditions, making it a trusted partner for sound engineers.

In summary, the Telex DOC02-DN9848 Loudspeaker Processor combines sophisticated audio processing capabilities with user-friendly features and robust connectivity. Its advanced technology and flexible options make it an indispensable tool for achieving optimal sound in a variety of professional audio environments.
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