VCS VideoJet 8000, User Manual

Page: 105 / 148

Chapter 5 Configuration using a Web Browser
VideoJet 8000 105
automatically terminated and another unit can exchange transparent data with
the transmitter.
For multilink operation, the network need not be multicast-capable, because the
VideoJet 8000 is also multi-unicast compatible. Duplication of the data on the unit
requires considerable processor power and, under certain circumstances, leads
to limitations in the picture quality.
When the multicast address is set to 0.0.0.0 , the VideoJet 8000 operates in multi-
unicast mode (copies the data streams on the unit).
If a valid multicast group IP address is entered for each encoder, the unit operates
in the multicast mode (duplication of the data stream on the network).
Multicast address encoder 1 ... Multicast address encoder 8:
A special IP address (class D address) must be configured for multicast operation
in a multicast-enabled network.
The network must support group IP addresses and the Internet Group
Management Protocol (IGMP). The address space is from 224.0.1.0 to
238.255.255.255.
The multicast address can be the same for multiple encoders. Then however it is
necessary to use a different port in each case so that multiple data streams are
not sent simultaneously over the same port and multicast address.
Multicast port 1 ... Multicast port 8:
In the case of simultaneous data streams in MPEG-2 format the data streams
must be assigned to different ports.
Enter the port address for the particular encoder here.
Multicast packet TTL:
A value can be entered to specify how long the multicast data packets are active
on the network. If multicast is to be run over a router the value must be greater
than 1.