Comtech EF Data DTMX5000 SpectraCast - Manual (Page 53)

DTMX5000 IP Gateway Operation
Rev. 1 3–17
3.2.4.6 MPE Mode
Path: Edit CFG.INI Parameters/DVB Mapping Parameters/MPE
Mode.
Description: Defines the mode in which MPE operates either Packed or
Nonpacked. This determines how incomplete 188-byte packet
will be handled prior to transmission. Select either Packed or
Nonpacked as follows:
Packed If an MPE transport stream packet is incomplete, the next new MPE packet will begin
from a point at which the last MPE packet ended. In Packed mode, stuffing is not
required.
Nonpacked Incomplete packets require stuffing prior to transmission.
Note: The unit must be rebooted in order for settings to take effect.
3.2.4.7 CRC Mode
Path: Edit CFG.INI Parameters/DVB Mapping Parameters/CRC
Mode.
Description: Specifies the way in which data integrity is checked. Select
one of the following:
Zero CRC is not used.
Checksum The sum of a group of data is used for error checking.
CRC The integrity of a block of data is checked using CRC (Cyclic Redundancy Check).
CRC is a common method of checking whether a datagram was correctly received.
This method is similar to Checksum, but more powerful and effective.
Note: The unit must be rebooted in order for settings to take effect.