Remote Control Via Ethernet; Assigning An Ip Address - Promax MO-180 Manual De Usuario

Modulador sfn/mfn dvb-t/h
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Tx Time Offset
In SFN, this integer corresponds to the positive or negative delay defined by the
field tx_time_offset carried on the MIP packet. It is used to automatically apply an offset
to the time of the transmitted DVB-T/H signal relative to the reference transmission
time calculated as (Synchronization Time Stamp (STS) + maximum_delay +
local_delay_offset) modulo 10
any case the total delay is always limited to 1 second.
Maximum delay
In SFN, this non-negative number is the maximum_delay field extracted from
the HP MIP packet. In hierarchical modes, the same value should be carried by the LP
MIP packet for the modulator to function correctly. It represents the time difference
between the time of emission of the start of a megaframe of the DVB-T/H signal from
the transmitting antenna and the start of the same megaframe at the (multiple channel)
SFN adapter(s) output(s) expressed in 100 ns units. The value of maximum_delay field
should be larger than the sum of the longest delay in the primary TS distribution
network and the delays in modulators, power transmitters and antenna feeders. The
valid range goes from 0 to 1 second.
NIT network ID
This is the ID of the DTT network of which the input TS is part of. When
"NETWORK:Update Net ID" is set to ON, this network ID is replaced with the value
specified in the menu entry "NETWORK:Network ID". Note that only the NIT network_id
label is modified, not the original_network_id which identifies the originating delivery
network.
HP TS ID
This is the identifier of the HP transport stream which, together with the
orignal_network_id, allows any transport stream to be uniquely identified. This value is
extracted from the Program Association Table (PAT).

4.13 Remote control via Ethernet

4.13.1 Assigning an IP address

The MO-180 has an Ethernet RJ-45 socket which enables the connection of the
modulator to an IP network. The network interface installed in the modulator requires
an IP address whose value lie within the range of values assigned to the IP network or
sub-network we are using.
Here follows a brief explanation of how to assign IP addresses in an IP network.
This is by no means a comprehensive description of how to set up an IP network.
There are excellent books and on-line resources providing an in-depth coverage of the
subject.
Page 40
7
. The valid range is —3.2768 to 3.2767 ms. Note that in
USER'S MANUAL MO-180
04/2008

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