Ganz ZN-L7000 Instruction Manual - page 24
24
ENG-
Assign IP with DHCP:
with the Dynamic Host Configuration Protocol set to On a
(changing) IP address is assigned to the device automatically. If
you want to give it a dedicated IP address choose Off.
Service settings
Ù Multilink – Multicast
Along with a 1:1 connection between a transmitter and a receiver, (unicast) the units provide
the option of connecting a number of receivers to simultaneously receive the video signal. This
is achieved either by a duplication of the data stream in the unit with subsequent distribution to
a number of receivers (multi-unicast) or by distribution of a single data stream on the network
itself to a number of receivers in a defined group (multicast).
Requirement for multicast operation is a multicast compliant network with
implementation of the UDP protocol and the IGMP protocol. Other group
management protocols are not supported. The TCP protocol does not support any
multicast connection.
The devices support the multi-unicast operation up to a maximum of 5 simultaneously
connected receivers for MPEG-4. The transparent data connection is maintained from the first
unit. However, after 15 seconds of inactivity the data connection is automatically suspended
and another unit can exchange transparent data with the transmitter.
For multilink operation, the network is not required to be multicast compatible as the devices
are also multi-unicast compatible. Duplication of the data in the unit requires considerable
processor power and, under certain circumstances, leads to limitations in the
picture quality.
Multicast streaming:
select here the option On in order to activate the multicast function.
For that purpose a valid Multicast group IP address has to be
entered.
Multicast group IP address:
a precondition for the multicast and the streaming mode in a
multicast-compatible network is the establishment of a special IP
address (class D address). The network must support the
establishment of a group IP address and the Internet Group
Management Protocol (IGMP). The address range is from
224.0.1.0 to 238.255.255.255. With this field left empty (0.0.0.0) the
device is sending in multi-unicast mode and streaming is not
possible.
Multicast port MPEG-4:
this field is read-only and informs about the selected video port.
Assignment of port numbers is done automatically by the software.
Multicast racket TTL:
here the number of junctions can be entered a data packet can
pass within the network. By setting the parameter you determine
the life span of the data packets, e.g. if multicast is operated over a
router the value must be greater than 1 to guarantee transmission
of the packets.