System Load Within An Omnibus Configuration - Barco TransForm A Service Manual
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4.3.4 System load within an OmniBus configuration
Overload calculation
The following calculation must be used when inserting UGX G
D
DVI I
C
, D
UAL
NPUT
ARDS
UAL
per cables with optical cables.
There are three criteria I1, I2 and M1. I1 and I2 stand for the current that occurs at 3.3 V and 5 V respectively. M1
stands for memory allocated by the system. Each criterion must be valid, to allow the card to be inserted.
The rule is for each criterion the same. For each card there is a value that must be multiplied by the amount how
often it is inserted in the O
the maximum allowed value for the device, if the configuration shall be allowed.
System base load OmniBus A12 AGS-3359-0
System base load OmniBus A18 AGS-3335-0/-1
UGX G
C
RAPHIC
ARD
O
S
UXGA
MNI
CALER
Quad Analog Video Card
Dual DVI Input Card
Dual RGB Input Card
Streaming Video Card
Q
SDI V
C
UAD
IDEO
ARD
optical cables
Maximum allowed OmniBus A12 AGS-3359-0:
Maximum allowed OmniBus A18 AGS-3335-0/-1:
It is not allowed to configure combinations of cards that do not fullfil the three above
criteria. Otherwise there is the risk to destroy the power supply or to configure the device in
a way it is not operable.
The following example illustrates how a configuration can be checked. For 3 UGX G
UXGA, 3 Q
A
V
UAD
NALOG
IDEO
A18
the following calculation must be made:
AGS-3335-0/-1
System base load
+ UGX G
C
RAPHIC
ARD
+ O
S
UXGA
MNI
CALER
+ Q
A
V
C
UAD
NALOG
IDEO
ARD
+ D
DVI I
C
UAL
NPUT
ARD
+ D
RGB I
C
UAL
NPUT
ARD
+ S
V
C
TREAMING
IDEO
ARD
+ Q
SDI V
C
UAD
IDEO
ARD
+ optical cables
=
Maximum allowed
Barco – TransForm A – DOC-3358-2 – service manual – Revision 06 – March 2007
RGB I
C
, S
NPUT
ARDS
TREAMING
B
. The system base load must always be added once. The sum may not exceed
MNI
US
AGX-3281-03
AGX-3313-01
R9842986
R9842985
R9842987
R9842978
R9842979
R76532x
C
, 3 D
DVI I
C
ARDS
UAL
NPUT
I1 (3,3 V)
Value
Amount
Result
7.4 *
1
= 7.4
1.6 *
3
= 4.8
1.4 *
6
= 8.4
2.5 *
3
= 7.5
3.5 *
3
= 10.5
1.6 *
0
3.4 *
3
= 10.2
1.8 *
0
–
48.8
70.0
C
, O
RAPHIC
ARDS
V
C
or Q
SDI V
IDEO
ARDS
UAD
I1 (3,3 V)
I2 (5 V)
0.9
7.4
1.6
1.4
2.5
3.5
1.6
3.4
1.8
–
45
70
Components values for configuration criteria calculation for OmniBus devices
and 3 S
V
ARDS
TREAMING
IDEO
I2 (5 V)
Value
Amount
Result
0.90
*
1
= 0.9
2.50
*
3
= 7.5
3.00
*
6
= 18.0
0.80
*
3
= 2.4
2.80
*
3
= 8.4
1.50
*
0
2.20
*
3
= 6.6
1.90
*
0
0.36
*
12
= 4.4
_________________________________________________________________________
S
, Q
A
MNI
CALERS
UAD
NALOG
C
or when exchanging cop-
IDEO
ARDS
M1
0.20
0.90
2.50
3.00
0.80
2.80
1.50
2.20
1.90
0.36
50
50
C
, 6 O
RAPHIC
ARDS
C
used together in an O
ARDS
M1
Value
Amount
326
*
1
324
*
3
32
*
6
66
*
3
66
*
3
66
*
0
66
*
3
66
*
0
48.2
50.0
Calculating the configuration criteria
V
C
,
IDEO
ARDS
326
326
324
32
66
66
66
66
66
–
4096
4096
Table 4-8
S
MNI
CALERS
B
MNI
US
Result
= 326
= 972
= 192
= 198
= 198
= 198
2084
4096
Table 4-9
4-12
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