Control central and
paging desk
Default base Multicast addresses, ports and configurations
Initial configuration download
Initial configuration download
Heart beat every 10 seconds
Valid ranges (according to the IANA Guidelines for IPv4 Multicast Address)
Between 239.0.0.0 and
239.255.255.255
Heart beat between 1 and 65000
seconds.
Between 239.0.0.0 and
239.255.255.255
1-50 simultaneous channels
Between 239.0.0.0 and
239.255.255.255
1-50 simultaneous channels
b) Notes on Local and Global Co-ordinators
The system requires management of the digital audio channels at all times, so that the data may circulate freely across the network.
This function is performed by two applications: one at a local level, known as LCC, which manages the digital channels at PA Area
level, and another, known as GCC, which manages the digital channels at a global level (between different PA areas and/or servers).
Each PA Area needs at least one LCC process on one of its equipment units.
If there is more than one PA Area in an installation, and announcements have to made or music programs have to be sent between
PA Areas, a minimum of one GCC process is required on an equipment unit in the installation.
If the number of equipment units so permits, it is advisable to have each process available on at least two equipment units. In this
way, the applications continue to work even when a fault in one of the equipment units occurs.
There are specific equipment to run these applications: CC-100ETH, UMX-CC and UMX-ETH (Control). It is recommended that they
are the ones who made the role of coordinator. If these equipment are not present in the installation, it is advisable that the COU-
02/0ETH, performs the functions of co-ordinator.
The recommended order of priority depending on the model is as follows:
CC-100ETH
UMX-CC
UMX-ETH
(Control)
UP-xETH
(Backup amplifier)
UP-xETH
UMX-ETH
(program
or priority)
DVA-102ETH
DC-600ETH
FC-600ETH
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