Comtech EF Data DM240XR User Manual
Page 35
DM240XR High-Speed Digital Modulator
User Interfaces
MN-DM240XR– Revision 13
4–13
INTERFACE MENU - The following new items are available under the Interface menu
INTERFACE TYPE:
{ETHERNET}
When the slot with GigEth card is active, the interface type will
be Ethernet.
TERR FRAMING:
{PROMPEG COP3, BRIDGE}
Pro MPEG COP 3 – Terrestrial data must support Pro MPEG
format or generic UDP.
Bridge – Terrestrial interface will pass data seamlessly without
the need to configure an IP address.
The following menus are only available when Terrestrial Framing is
configured for PRO MPEG COP 3
TERR ETHERNET:
When the Terrestrial Framing is configured to PRO MPEG COP
3, additional menus will display addressable IP Addresses.
MODE SELECT:
{UDP PACKETS, COP 3 RTP, or COP 3 RTP FEC}
UDP PACKETS - the modulator accepts generic UDP packets
with seven MPEG packets encapsulated in each UDP datagram.
COP 3 RTP - the modulator accepts seven MPEG packets
encapsulated in a COP 3 compliant RTP datagram.
COP 3 RTP FEC- the modulator accepts COP 3 compliant
Column FEC packets in addition to the RTP datagram.
ONLINE SELECT:
{Prime or Backup}
Allows selection and an indication of which UDP port is
currently online. This menu selection works in conjunction with
the BACKUP MODE menu. BACKUP MODE menu
determines whether the unit is configured for manual mode or
automatic mode. Automatic mode will switch between the prime
and backup SRC until it acquires an input data stream.
JITTER BUFFER:
{10 TO 200ms}
Allows the operator to select the jitter buffer depth from 10 ms to
200 ms in 10 ms steps. The Jitter Buffer is used by the
modulator to smooth out the network jitter that is inherent in
Ethernet networks. Entry of zero (no jitter buffer) is not
allowed.
IMPORTANT