24 AQT8-QAM/IP
User Manual
In the section entitled “Oversubscription Configuration”, the user can select and configure the following parameters for
all output streams. These settings allow the user to define rules when low priority streams may be removed in order to
keep output bit rate within selected limits.
Control:
Removes a program from the output stream if the program causes the stream bitrate to exceed the user-
assigned output bitrate. Options are Enable and Disable.
Occurrences:
Allows setting the threshold value for the number of times that a program is allowed to cause the
output stream to exceed the user-assigned total output bitrate assigned in. The selectable values are 2 to 10.
Time Window (minutes):
Allows setting the time frame. Options are 1 to 10 minutes.
NOTE:
The “Oversubscription Configuration” feature works in conjunction with the “Low Priority” feature
described below.
In the section entitled “IP Output Mapping”, the user can select and configure the following parameters for each output
stream indicated by “Output # - IP Address:Port Number”, under gray header:
8VSB/QAM Input:
Indicates the list of programs selected by the user which are included in the output stream.
PID:
Indicates the PID value assigned to each elementary stream. PID (Packet Identifier) values are embedded by
the content provider in the MPEG-2/H.264 stream to identify tables and programming packets.
Program Number:
Must enter a unique output program number for each program. PMT (Program Map Table)
provides information on each program present in the transport stream such as program number, and the list of
the elementary streams (audio, video or data).
Short Name:
Enter to change or add the short name of the channel. Up to 7 alphanumeric characters are allowed.
Major Channel:
Enter the major channel number for the output program. The range is 1 to 99 for Terrestrial and 1
to 999 for Cable.
Minor Channel:
The range is 1 to 99 Terrestrial and 0 to 999 for Cable. When “Output Type” #3 above is set to “CABLE”
and a "0" is entered as the minor channel, the Major channel will be displayed as a one part channel number (ie: 550
major & 0 minor displayed on TV as 550). "0" is only valid with Cable (CVCT) and is not applicable to Terrestrial (TVCT).
Low Priority:
A program number marked as low priority will be removed from the output when it causes the output
to exceed the total output bitrate assigned by user in of this section.
This feature works in conjunction with the “Oversubscription Configuration” described in
& above.
By default the first program number in the ASI Input will be assigned as low priority. The user can select only one
program number at a time in the output stream as low priority.
When the program marked as low priority is removed from the output stream due to violation of the
Oversubscription Configuration (See & above for details), the message “Output Oversubscribed!” will
appear on all screens.
6.4 "Main > MPTS Output Config" Screen (continued)
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