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P O W E R I N G
T E C H N O L O G Y
17.6
Signal Connections - These connections are made to the D-type and spring clamp terminal
connectors described in section 15. Wire size for all signal connections should be 22-24AWG.
17.6.1 Connecting Multiple Shelves in Parallel - To ensure proper power sharing between
17.7
Cooling - The BLUEstreak power modules incorporate two DC ball bearing fans that are
speed controlled according to the internal temperature of the unit. Airflow is from the front
to rear with exhaust ventilation holes at the rear of the power shelf. To minimise obstruction
to ventilation there should be a minimum of 3 inches (76mm) free space behind and in front
of the power shelf when it is installed in the rack. UNIPOWER also recommends that any
equipment mounted directly above the BLUEstreak power shelf should be shorter in overall
depth so as to not obstruct any ventilation holes in the top surface.
18.0
MAINTENANCE
No routine maintenance is required on the BLUEstreak series except for periodic cleaning of dust
and dirt around the front ventilation grill. A small vacuum nozzle should be used for this purpose.
Document Number: BLUESTREAK-MAN Rev. 6
Note that each bus bar pair has a maximum current capacity of 200A. For systems
where the total possible current capacity exceeds 200A it is necessary to fit link bars
kits to both pairs of bus bars on the power shelves. It is also necessary to ensure
that the equipment being powered is connected to the system in such a way that no
more than 200A can be taken from each bus bar pair.
On dual bus shelves the A and B sides are galvanically isolated and one link bars
kit is required for each side.
parallel connected power shelves it is important to make sure that current share
and –Ve Sense are connected between each shelf. See sections 15.2 and 15.3 for
details on single and dual bus shelves respectively.
INSTALLATION & OPERATING MANUAL
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BLUESTREAK SERIES
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bluestreak-man-rev6-0719.indd
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