ASTRO U 158, Руководство по эксплуатации

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“IP RX” menu
Operating manual U 158 - Version 10-2018A page 28
“IP RX” menu
To configure the 8 IP inputs, start by clicking on the item “IP RX 1”, “IP RX2”, “IP RX3”, “IP RX4”, “IP
RX5”, “IP RX6”, “IP RX7” or “IP RX8” in the menu at the left. The following table will then appear in the
content area at the top:
Figure 25: Table 1 “IP RX1 channel settings”
“Receive IP” and “Port” (see lines 1, 3 and 5 in the table) form a socket on which the incoming data
stream is received. This also allows the Receive IP address to be a multicast address or a unicast ad-
dress of its own.
The IGMP protocol is used to request an IP multicast. If version 3 of this protocol is used, then you can
select a specific source using the Source Select IP address (see lines 2, 4 and 6 in the table). If this
function is to remain unused, please enter four zeroes in the input field. (This is, for example, the case
when IGMP version 2 or IGMP version 3 from any source is being used as the protocol).
You can make a priority setting for the primary, secondary and tertiary IP address / port respectively
using a drop-down menu. There are 13 options (from “off” to “highest/hot”) available for selection.
The priorities are divided into three groups:

Hot standby (higher priorities) Levels 7 - 12: data streams are requested permanently

Cold standby (medium priorities): Levels 1 - 6

“Off”
As a rule – providing there are no network provider problems – the data stream with the highest priority
is received and used for processing. In the event of a fault – failure of the incoming signal – a
switch-over is made to the data stream with the next-highest priority.
If a priority level from the “Hot standby” group is allocated to a data stream, then this will continue to be
requested even during network provider problems. As soon as the problem has been rectified, it switch-
es back to this data stream.