Barco Hydra Compact, Руководство пользователя

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3. Getting started
Barco – Hydra Compact – R5976568 – Revision 10 – February-2004
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3-19
3.2.7 Audio Board
The audio boards serve to monitor audio signals. An audio board consists of an audio motherboard and one or
two audio daughterboards, which are plugged on the audio motherboard. Up to two a
Up to two audio motherboards can be
used in one H
YDRA
C
OMPACT
.
The audio input is inserted into the audio daughterboards. A daughterboard is of analog balanced, digital
balanced or digital unbalanced type. On an audio motherboard analog and digital daughterboards can be mixed.
On one daughter board there are 28 mono or 14 stereo channels available. This means an audio motherboard
may contain 56 channels. A H
YDRA
C
OMPACT
with maximal two audio motherboards may monitor herewith 112
audio channels.
Connectors
Each audio daughterboard is equipped with a SCSI quipped with a SCSI-4 connector. The figure below shows an audio board, fully
equipped with two daughterboards of digital unbalanced type:
1
1 SCSI port 1
2 SCSI port 2
Figure 3-16
Connectors of analog and digital daughterboard
The writing on the front plate of the audio board differs according to the type of daughter boards, which are
plugged on it, nevertheless the numbering of the ports remains the same. The following table lists which writing
on the front plate refers to which audio daughter board:
Writing Type of daughterboard
BALANCED ANA Analog balanced
BALANCED DIG digital balanced
UNBALANCED DIG Digital unbalanced
No daughterboard
Table 3-2
Writing on the audio board
The SCSI cable between the audio boards and Parthenope are not very strong. Handle them Handle them
with care. Do not bend!
If connecting 600 Ohm audio sources to an analog audio daughterboard, then to receive
best signal quality the audio input at the Hydra Compact should be terminated with a
600 Ohm resistor!
Order
The audio boards are inserted into the slots to the right of the output card (looking from the back on the (looking from the back on the H
YDRA
C
OMPACT
).