![Contemporary Research IP-SDI 4i Скачать руководство пользователя страница 4](http://html1.mh-extra.com/html/contemporary-research/ip-sdi-4i/ip-sdi-4i_product-manual_2656394004.webp)
Page | 4
IP-SDI 4i Product Manual 042020
Connecting the IP-SDI 4i
Connect the HDMI or SDI output to a compatible video display. Analog and SPDIF optical digital audio outputs are available for connection to
an amplifier or audio system processor. Connect the Ethernet port to a network switch or directly to the output of an IPTV encoder. Connect
the external power supply to an appropriate power source.
The IP-SDI 4i is shipped with the default static IP address 192.168.1.231. If multiple IP-SDI 4i’s are on the same network, unique IP addresses
will need to be assigned to each unit.
After the IP-SDI 4i is connected, a channel list will need to be uploaded in order to begin viewing programs.
IPTV – Unicast/Multicast
The IP-SDI 4i can receive an IPTV transport stream that is transmitted as unicast or multicast. Network switch considerations should be based
on which method will be implemented.
Unicast
Unicast communication is used when the IPTV stream is to be transmitted from one encoder directly to one decoder. Only one decoder can
view the content of the IPTV stream at a time. The encoder can be connected to the IP-SDI 4i directly or through a network switch. This
mode is for simple one-to-one communication from the encoder to the decoder. The unicast stream will be received at the IP address
specified in the unit’s configuration. The unicast IP address must be different than the unit’s normal IP address.
The unicast stream can be SPTS (single program transport stream) or MPTS (multiple program transport stream). Each program will be able
to be accessed by direct channel entry or channel up/down.
Multicast
Multicast communication allows for an IPTV stream from one or many encoders to be viewed by one or many decoders while minimizing
network traffic. Multicast communication requires a Layer 2 managed network switch. The network switch will need to have IGMP snooping
enabled. The IPTV stream from the encoder is assigned a unique IP destination address and port in the range reserved for multicast. An
IPTV stream is not forwarded by the switch until it receives a request from the decoder.
Each multicast stream may be SPTS (single program transport stream) or MPTS (multiple program transport stream). The programs will be
able to be accessed by direct channel entry or channel up/down.
Channel List
A channel list will need to be loaded into the IP-SDi 4i. The channel list will contain a channel number, channel name and related information
for each IPTV stream that is to be available for viewing. An IPTV stream may be selected for viewing by entering the associated channel
number from the web page, IR remote, or other control source. Channel Up/Down from the front panel, web page, IR remote or other
control source will step through the channels entered in the channel list.