Chapter 9: MXA-6800-AES and MXA-6801-A2/A4 Video/Audio Multiplexer Module
Control Parameter Details
154
6800/7000 Series - Audio and Video Multi/Demultiplexing Products Installation and Operation Manual
Lock Mode
When the
Lock Mode
parameter is set to either 525 or 625, the system is
forced to lock to only 525 or 625. Neither of these modes will force the
output to a particular video standard. When the
Lock
Mode
is set to
Auto, the system automatically detects the input and locks to the
detected standard.
Audio Error Messages
As seen in the feature list, there are six embedding modes (really five
since one of them
Auto
selects the follow-up or overwrite mode.
Gain Value
The gain value is adjusted in increments of 0.25 dB or 0.5 dB and the
delay value in increments of 20 ms. Since the Hex Display can only
display three characters, the values are displayed in Hex instead of
decimal. For example, if the delay value displayed is 1FE, then the delay
is 10.2 ms (20 ms times 1FE [510 decimal]). Since the delay range is
large, 0 to EA5F, the last digit is not displayed. The third decimal point
flashes when the last digit changes value. See “Hex to Decimal
Conversion” on on page 158 for more information.
Item
Function
Off
Chooses the default
“do nothing” mode.
Auto
Automatically selects follow-up or overwrite embedding using
sample distribution from the ROM table.
Justify
Left-justify embedding after EAV.
Follow
Embeds the group after the last embedded group.
Ovrwrite
Overwrites the existing group. (This mode uses the same
sample distribution as in the group that is being overwritten.
Cin-EMB
Strips ADS clean and left-justifies embedding.
Clean
Strips ADS clean and does not embed.
For proper operation, all pre-
existing ADS groups must be
left-justified.
See
Appendix A for a detailed
description and
representation of graphics.
