Wheatstone Corporation E1, Техническое руководство, Страница: 12 / 92

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E-1 / Apr 2010
G E N E R A L I N F O R M A T I O N
Power Supply
The E‑1 control surface is powered by a Wheatstone Model PSE‑1
rackmount power supply. This unit occupies a single 19” wide rack space.
Convection cooled, it requires ample ventilation space above and below it.
Note the power supply (supplies) should be mounted in an equipment
rack within fifteen feet of the control surface (but no closer than 3 feet).
Avoid locating any high gain equipment (such as phono preamps, tape
recorders, etc.) too near the rackmount supplies, to avoid magnetic inter‑
ference into that equipment.
Once the supply is rackmounted, it
should be connected to the control surface
using the factory supplied cable. The cable
has two “D‑SUB 2V2” style connectors
on it: a female connector that plugs into
either one of the control surface’s power
supply connectors, and a male connector
that plugs onto the power supply. In case
of redundancy use two PSE‑1 units. If
you are using one supply, connect it to
one of the control surface connectors (it
doesn’t matter which one). If you are using
the failsafe option (two PSE‑1 supplies),
connect one end of a power supply cable to either control surface power
connector and connect the other end of the cable to one of the two power
supply units. Then use the other cable to connect the second power supply
to the remaining control surface power supply connector.
Note each power supply is fitted with a 3-wire grounded AC cord that
should be plugged into a “clean” AC power source, that is, an AC source
that feeds only the control room audio gear. This source should be a separate
feed from those powering lighting, air‑conditioning, or any other non‑audio
machinery. The third pin ground wire of the AC source should be tied to
the central system ground point.
Failsafe Dual Redundant Supply
Wheatstone failsafe power supply systems use two PSE‑1 power supplies
for each piece of powered equipment. Though either is capable of running
a full load on its own, in failsafe operation both units run in tandem: if one
fails, the other takes over, assuring uninterrupted operation.
The power feed recom-
mended in the text is often
installed and referred to in
studios as an “isolated AC
ground” outlet. It is usually
orange in color.
If failsafe redundant sup-
plies have been ordered,
you will be installing two
PSE-1 units.
Power Supply
End
Control Surface
End
Female
Male
E-1 / Oct 2012
Front view of the PSE-1
rackmount power supply
Rear view of the PSE-1
rackmount power supply