User guide

CALREC Putting Sound in the Picture 15
IP ADDRESS MANAGEMENT
In an Apollo/Artemis/Summa/Hydra2
system, each hardware element is
allocated a unique IP address, be it a
router card, Control Processor card,
or an I/O box.
IP addresses follow the format of:
AAA.BBB.XXX.YYY.
AAA is given a value unique to the
customer / owner of the system.
BBB is given a value unique to each
router / processing rack owned by a
customer.
AAA.BBB is set by the configuration of
the active Control Processor card within
a rack. Physically changing a Control
Processor card could change the IP
address of all hardware associated
with that rack, including the I/O boxes
connected to it, if the replacement card is
not correctly configured.
XXX.YYY is automatically set for each
element within and connected to the
rack, including rack cards, control surface
elements and I/O boxes, but not other
processing racks, or items connected
via other racks. XXX is set by the type
of hardware, YYY is set by the location /
port that the hardware is connected to.
Maintaining this format of IP allocation
ensures that systems can be connected
together without address conflicts, as
shown in Figure 1.
Confirming IPs
To confirm the IP addresses associated
with a processing rack, log in (with
administrator privileges) to the PC
associated with that rack and launch the
Calrec Program Updater application.
On startup, the Program Updater scans
all the hardware it can find and lists it. The
first hardware element detected by the
Program Updater is the configuration PC
itself, followed by the Control Processor
and then the remaining hardware
associated with that rack. All hardware
listed is part of the same system and will
have the same number for the first two
bytes, AAA.BBB.
Another system owned by the same
customer will have the same first byte,
AAA but a different second.
A system owned by a different customer
will have a different first byte AAA, but
may have the same second byte BBB.
Changing IPs
The first two bytes of the IP address
are set by the Control Processor.
Changing the IP requires logging in to
the card’s Linux environment and editing
a configuration file. This should only be
carried out by competent technicians.
Please contact our Customer Support
team for guidance on IP address changing
if required.
Broadcast Facility
Control Room 2Control Room 1
IP Address -
001.001.xxx.yyy
IP Address -
001.002.xxx.yyy
Rented OB / Mobile Unit
IP Address -
002.001.xxx.yyy
Hydra2 Router to Router connections.
FIGURE1 - MULTI-ROUTER IP’S