12
Block Errors in the last 10 seconds, (sam-
pled at 100ms intervals), when the ISDN
Backup has successfully been established.
The menu also displays the Restore Time
in seconds of error free data throughput,
after which the automatic X.21 Restore is
initiated. The Restore Time setting and
the Errors display are only relevant when
the codec is operating in the Backup
Master mode.
The
button can be used to edit the
Restore Time , the display changes as
follows:
EDIT : Restore Monitor
Time = 05s
Errors = 000
The
and
buttons can be used to
select the required Restore Time (1 to 90
seconds).
The
YES
button is used to confirm the
selection, the
NO
button to abort the edit:
MENU : Restore Monitor
Time = 10s
Errors = 000
Reserve Dial
MENU : Reserve Dial
Status:Off
(Factory Defaults)
This menu is used to enable reserve
dialing. When enabled, reserve dialing will
allow the codec to automatically dial an
secondary location in the event of a total
primary location failure. The ISDN dialling
details for the secondary site are obtained
from the adjacent patch to that already
selected (i.e. patch+1). This function is
only active when a codec is configured for
backup Master mode.
Audio Options
The
button is used to enter the next
level of the menu system, which allows
the user to select the available audio
options.
Audio Source
MENU : Audio Source
STATUS : Analog
The
button can now be used to edit the
Audio Source (Analog or Digital), the
display changes as follows:
EDIT : Audio Source
OPTION : Analog
The
and
buttons can be used to
select the required Audio Source:
OPTIONS : Analog, AES/EBU
The
YES
button is used to confirm the
selection, the
NO
button to abort the edit:
MENU : Audio Source
STATUS : AES/EBU
NO
TE: The digital audio port of the C400xr
provides both input and output digital sample
rate conversion.
Audio Mixing
The C400xr codec can be configured to
digitally monoise the selected audio
source, by mixing the Left and Right
signals with a 6dB pad. The monoised
signal is replicated to both Analog and
Digital (AES/EBU) Left and Right output
channels.
MENU : Audio Mixing
STATUS : Off
The
button can now be used to select
the Audio Mixing function (On or Off), the
display changes as follows:
EDIT : Audio Mixing
OPTION : Off
The
and
buttons can be used to
change the setting. The
YES
button is
used to confirm the selection, the
NO
button to abort the edit:
MENU : Audio Mixing
STATUS : On
NOTE: Mixing only functions when operating on
ISDN
Audio Priority
If a problem occurs on the ISDN telephone
exchange, and some of the ISDN calls are
terminated, the C400xr codec will auto-
Summary of Contents for C400xr
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