Cobalt-digital COMPASS 9223 Dual-Channel 3G_HD_SD MPEG-4 Encoder Manuel d'utilisateur télécharger pdf (Page 70)

70 9223-OM (V2.0)

overhead (which is zero if FEC Mode is Column Only). The overhead is a function of

the settings, as follows:

o Increasing the number of columns decreases the Row overhead (if enabled) and

does not change the Column overhead.

o Increasing the number of rows does not change the Row overhead and

decreases the Column overhead.

o Decreasing the number of rows and columns has the opposite effect as the

previous items.

The following constraints apply to the FEC function:

• The number of rows must be between 4 and 20.

• The number of columns must be between 1 and 20 for Column Only mode, or between 4

and 20 in Row and Column mode.

• The size of the FEC matrix (product of the number of rows and the number of columns)

must not exceed 100.

The user interface will not allow invalid configurations to be entered, and will automatically

make parameter adjustments as required. Examples:

• If you select Row and Column, and the number of columns is less than 4, it will be

automatically adjusted to 4.

• If your number of rows is 10, and you set the number of columns to 20, the number of

rows will be automatically reduced to 5.

Once the configuration information is filled in, click on the Apply button to make it active. If

there are no errors, the stream will be created, and the configuration area disappears. If any

errors are detected, they will be displayed at the top of the Apply button.

The following configuration-related errors are flagged:

• Error: UDP Port/Address conflict with Port X/Y: you have configured two IP Output

streams with the same destination IP Address and UDP port, on the same Ethernet

interface. Please review your settings. Note that ports with FEC enabled will use either

two or three UDP ports (depending on the FEC settings) – these are checked as well.

• Maximum number of streams exceeded on this port: you will receive this message if

you attempt to create more than 4 IP outputs on a given Ethernet port.

• Error: No SMPTE 2022 FEC License Available: the SMPTE 2022 function requires

licensing.

If the configuration is successful, the output stream will be added to the Active IP Outputs table.

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Cobalt-digital COMPASS 9223 Dual-Channel 3G_HD_SD MPEG-4 Encoder Manuel d'utilisateur Page 70