7700 MultiFrame Manual
7707VAT Digital Video and AES Audio Fiber Transmitter
Revision
2.3
Page-13
4.2.4. Displaying the Equalization Strength
To display the Equalization strength, press the toggle switch one or more times until the
EQ
message is
shown on the display. After one second the applied equalization strength will be shown represented as a
percentage of the maximum equalizer capability. (100% is equivalent to 300m of Belden 1694 cable)
EQ
0% to 100%
LOS
0% to 100%
Indicates applied equalization.
LOS:
Indicates that no valid input signal is present.
4.2.5. Displaying the Video Standard
The 7707VAT series modules detect the Video standard of the input signal and display this on the four-
digit card edge display. The following list describes possible displays and their meaning.
VSTD
N270
P270
LSV
EDH
N270:
SMPTE 259M-C, 270 Mb/s 4:2:2 Component 525 line
P270:
SMPTE 259M-C, 270 Mb/s 4:2:2 Component 625 line
LSV:
Indicates that no valid video signal is present on the input. This
message overrides the normal video standard message.
EDH:
Indicates that there is an EDH error. This message overrides
the normal video standard message.
On the 7707VAT or 7707VAT-U, when you are displaying one of the Video Standard messages, pressing
and holding the pushbutton for 3 seconds will turn off the card edge EDH error indication. The display will
show
EDH
↓
momentarily to indicate that EDH local reporting has been turned off and then the normal video
standard message will be displayed. This does not affect the monitoring of EDH errors and reporting
through SNMP over the VistaLink
®
interface. Pressing and holding the pushbutton for 3 seconds will turn
on the card edge EDH error indication. The display will show
EDH
↑
momentarily to indicate that EDH local
reporting has been turned on.
On the 7707VAT-A4, the
EDH
menu item is used to turn off the card edge EDH error indication. See
4.2.6. Displaying the Audio Sample Rate (7707VAT and 7707VAT-U only)
The 7707VAT and 7707VAT-U detect the Audio sample rate of the audio on the AES inputs and displays
this on the four-digit card edge display. For brevity sake, only
AS1
will be discussed in the manual.
A1S
LSA2
32K
44K
48K
LSA1
LSA2
32K
AES Audio with 32 kHz sample rate is being received and output
44K
AES Audio with 44.1 kHz sample rate is being received and
output
48K
AES Audio with 48 kHz sample rate is being received and output
LSA1
Indicates that no valid AES1 signal is being received. This
message overrides the normal audio sample rate message.
LSA2
Indicates that no valid AES2 signal is being received. This
message overrides the normal audio sample rate message.