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When cabinets are installed in groups, reduce the permitted power dissipation in accordance
with
. The permitted power dissipation in a particular cabinet is the power specified
in
Appendix B, RM500 Cabinet - Data Sheet
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When you are calculating the heat generated in a cabinet, add up the heat generated by the
different circuit boards. To this sum, add the heat generated by the power supply units and other
equipment such as an extra modem, extra unit for supply of power to transmitters and so on.
See
Appendix E, Current Consumption and Heat Dissipation
for the power dissipated as heat by
hardware modules in Advant Controller 450 and the available I/O system. It is assumed that
70% of the channels of an I/O board are active simultaneously.
A power supply unit located beneath the subracks contributes to the total power dissipation with
100 W. Do not include redundant power supply units in the calculation of number of units
because of the load shedding.
The total power dissipated in the cabinet can be written as follows:
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0.95
0.9
0.95
0.9
0.95
0.9
0.9
0.8
0.9
0.8
0.95
0.9
0.9
0.85
0.85
0.75
0.85
0.75
0.9
0.85
0.9
0.85
0.85
0.75
0.85
0.75
0.9
0.85
0.95
0.9
Reduction factor for ventilated
cabinet and tropicalized cabinet
Reduction factor for
sealed cabinet
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P
Total
P
C
module
–
∑
(
)
P
IO
board
–
∑
(
)
P
Voltagesupplyunit
∑
(
)
P
Sundry
∑
(
)
+
+
+
=
Summary of Contents for Advant Controller 450
Page 1: ...Advant OCS with Master software GYDQW RQWUROOHU User s Guide 3BSE 002 415R701 Rev A ...
Page 26: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xvi ...
Page 30: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xx ...
Page 488: ... GYDQW RQWUROOHU 8VHU V XLGH SSHQGL DUGZDUH 0RGXOHV A 48 3BSE 002 415R701 Rev A ...
Page 508: ...Advant Controller 450 User s Guide Appendix D Item Designations D 12 3BSE 002 415R701 Rev A ...
Page 518: ...Advant Controller 450 User s Guide Appendix F Load Calculation F 4 3BSE 002 415R701 Rev A ...
Page 522: ...Advant Controller 450 User s Guide Appendix G Memory Calculation G 4 3BSE 002 415R701 Rev A ...
Page 528: ...Advant Controller 450 User s Guide Appendix H Halt Codes H 6 3BSE 002 415R701 Rev A ...
Page 562: ...Advant Controller 450 User s Guide Index iv 3BSE 002 415R701 Rev A ...
Page 563: ......
Page 564: ...3BSE 002 415R701 Rev A March 2000 ...
