Klark Teknik HELIX DN9848E, Руководство оператора

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Security and Other Set Up Options
26
To switch System Protect on
1
Step through the Set Up menu to the System Protect menu page.
2
Use the left and centre
DATA ENTRY
control knobs to set a password of 12 characters (including
blank spaces) made up of letters, numbers and a limited number of symbols.
Note 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.
3
Turn the right control knob (‘on>’) clockwise to accept the password and switch protection
on.
4
Press
HOME
to apply the System Protect state.
The Home page now indicates the unit is locked with inputs editable. The System Protect state is
retained after power down, as will be shown on the Home page when the unit is powered up again.
To switch System Protect off
1
Step through the Set Up menu to the System Protect page.
2
Use the left and centre
DATA ENTRY
control knobs to enter the password. Note that the letters
must be in the same position as when the password was set.
3
Turn the right control knob clockwise to apply the password.
4
If you have entered the wrong password, the DN9848E will flag it as incorrect and return to
the Panel Unlock page for a further attempt.
If accepted, the password cursor stops flashing. When you next access this menu page,
System Protect will be in the default Off state.
7.5. Analogue/Digital Input Select (Page 5)
This page selects the input source for input channels A and B, and C and D on a paired basis due to
the sharing of channels for AES/EBU inputs. There are three options available for each input pair:
• ‘Analog’ - switches to analogue inputs. Note that this is the default setting.
• ‘DigSRC’ – switches to the digital AES/EBU input. In this mode, the unit locks to its internal
48kHz clock reference. Sample rate converters (SRCs) support incoming signals at sampling
frequencies from 32kHz to 96kHz ± 12.5%.
• ‘DigLock’ – switches to the digital AES/EBU input without sample rate conversion. In this
mode, the sample rate converter (SRC) of the digital input is bypassed and the clock
reference is set to lock to the channel’s incoming AES/EBU bit stream. This allows the unit to
be used in 48kHz systems without incurring the propagation delay inherent in sample rate
conversion.
Note If both input pairs are set to ‘DigLock’, then either pair may be selected
as the clock reference.
Any combination of analogue and digital inputs may be selected. For example, input channels A and
B may be set for analogue sources while input channels C and D are digital.