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CONNECTING TO OTHER CONSOLES/ROUTERS
Multiple Apollo and Artemis consoles
can be connected together and to
standalone Hydra2 routers, allowing
them to share each other's I/O
resources. Before connecting a
console to an active Hydra2 network it
is essential to be aware of IP address
compatibility and of the Master Router
status.
A single, standalone console with its
processing core and connected I/O units
forms a basic Hydra2 network. All Hydra2
networks require one, and only one of
the processing cores to be configured as
the Master Router. Therefore, consoles
specified at order to be standalone
will have their processing cores pre-
configured as Master Routers. It is vital
that this is changed before connecting
to an active Hydra2 network. A console
specified to be part of a wider Hydra2
network will not function reliably until it
is connected to a network with a Master
Router, or has its own core changed to
become a Master. Please contact Calrec
support for guidance on configuring router
master / slave status.
Each processing core is configured with
an IP address range unique within the
network it is to be connected to. It is
important to ensure that the IP address
range does not conflict before connecting
to an existing network.
Processing cores connect together using
any of their primary main router I/O ports,
highlighted on the following page. These
core-to-core connections should NOT be
made via expansion slot ports.
To provide redundancy, for each primary
router to router link, there should also be a
(normally inactive) link fitted between the
secondary router cards in the same cores.
60 ARTEMIS
Digital Broadcast Production Console
FIGURE 1 - CORRECT CONNECTION OF A THREE CONSOLE NETWORK
Audio I/O
Audio I/O
Router /
Processing
Core
Audio I/O
Audio I/O
FIGURE 2 - INCORRECT CONNECTION OF A THREE CONSOLE NETWORK
Audio I/O
Audio I/O
Router /
Processing
Core
Audio I/O
Audio I/O
Incorrect connection! The additional link creates a duplicate path.
When multiple cores are networked, it
is essential that they are all receiving
and are locked to the same derived
sync reference.
Each Hydra2 link can carry 512 channels
of audio in each direction simultaneously.
From software version 1. 1 0, bandwidth
between cores can be increased in
multiples of 512 audio channels by adding
additional links to form trunks.
Trunk links should only be fitted if
they have been configured. Please
contact Calrec Customer Support or your
local representative for guidance on trunk
link configuration.
Audio I/O
Audio I/O
Router /
Processing
Core
Audio I/O
Audio I/O
Three router cores connected with no duplicate paths.
Audio I/O
Audio I/O
Router /
Processing
Core
Audio I/O
Audio I/O
It is important that there is only one path
(not counting dedicated secondaries
and configured trunks) between any two
points on the network. It is important to
note that the path between I/O port and
console router may pass through other
routers. Figure 2 shows an incorrectly
connected network - the addition of a
third router to router link creates duplicate
paths. This will cause network collisions
as data can take two paths between any
two routers - one path is direct, the other
is via the third router. Removing any one
of the three router to router links corrects
this, effectively changing the topology to
match that shown in Figure 1.
Note, it is important to ensure that
when Hydra2 routers are networked
together, they are on separate VLANs.
Audio I/O
Audio I/O
Router /
Processing
Core
Audio I/O
Audio I/O
Audio I/O
Audio I/O
Router /
Processing
Core
Audio I/O
Audio I/O
Connection Information
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