D21m System
2-4 Introduction Date printed: 11.07.07
2.3 Hub Frame
The difference between a D21m frame acting as a hub or as a remote I/O
box is the type of HD Link and RS422 cards inserted. The HD Link card in
the hub frame hosts four RJ45 connectors for connection to the DSP core,
providing 192 channels (96 in case of the Performa core) of audio coming
from the DSP core through 2 cables into the frame (audio outputs), as well
as 192 channels from the frame through 2 cables into the DSP core (audio
inputs). The length of the high-density link cables must not exceed 10 meters
(30 feet).
If multiple remote I/O boxes are connected to one hub frame, more channels
need to be transferred to the DSP core. In this case it is possible to insert
a second HD card into the hub frame, expanding its capabilities to handle
384 inputs and outputs to the DSP core (192 outputs in case of the Performa
core).
2.4 Remote I/O Frame
The frame placed remotely is equipped with a special MADI HD card. This
version of the card is not equipped with the Studer proprietary high-density
link but with standard MADI optical interfaces. This format allows transfer-
ring 64 channels of inputs and outputs between the remote I/O box and the
hub frame simultaneously.
Frame dimensions are the same as shown in 2.3 above.
2.5 Vista Surveyor Software
The surveyor on the graphic controller (GC) screen of the Vista consoles will
indicate the whole I/O system, including the health state of each I/O card and
the power supplies. If the hardware found at startup time is not identical to
what the system expects, the user is asked whether the expectations should
permanently be changed or whether the user has temporarily changed the
I/O confi guration (such as having moved a remote I/O box to another place
for the current production). In both cases the surveyor application indicates
“green”, unless the user tells it to wait for the missing I/O components.
There is no need to tell the system which channel has a microphone preampli-
fi er included, since this detection is done automatically. However, it is neces-
sary to defi ne which HD link of the hub frame is going to which PED21m card
within the Performa DSP core. This is done in a software menu accessible for
system administrators only.
380 mm
* Rack mounting brackets may be installed on
front or rear of frame, depending on user's
preference.
**
426 mm
Connector
area,
approx.
50 mm
19" (482.4 mm)
3 U
(133.5 mm)
CARDS
POWER SUPPLY
SYSTEM CLOCK
IN FAILIN
FAIL
96kHz 48kHz
RECONFIG
PRI 1
PRI 2
DIGITAL
ANALOG
CARD 5
CARD 4
CARD 3
CARD 2
CARD 1
CARD 6
HD CARD
HD CARD
CARD 7
CARD 8
CARD 9
CARD 10
CARD 11
CARD 12
To Next Page
Loading...
Need help?
General
