WTI MPC Series User manual

WTI Part No. 13813
Rev. A
MPC Series
Managed Power Controllers
Models Covered:
MPC-8H-1
MPC-8H-2
MPC-16H-1
MPC-16H-2
MPC-20V-1
MPC-20V-2
Rack Mounting Options

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Rack Mounting Options for MPC Units
The MPC offers a variety of different mounting options that allow the unit to be easily
mounted in almost any equipment rack available. In addition to the standard "L"
brackets included with all units, MPC-20V series units can also be mounted using
standard mounting buttons, "Hook" Brackets for Dell™ style racks or Zero-U Pocket
Brackets for APC® style racks (or any other rack that features a "pocket" or channel for
Zero Unit mounting.
1. "L" Bracket Mounting
The standard "L" brackets, included with the unit, can be used to mount all MPC-8H,
MPC-16H or MPC-20V units in most standard equipment racks.
The "L" brackets allow horizontal format MPC-H units to be mounted facing forward or
facing backward or mounted in the front of the rack or rear of the rack. When the "L"
brackets are used with the vertical format MPC-20V, units can also be mounted facing
either side of the rack.
1. Attaching the Brackets to the MPC: First determine which direction the MPC will
face after mounting, and then secure the "L" Brackets to the MPC accordingly, using
the screws provided with the mounting brackets.
b) MPC-8H (Horizontal) Units: Each end of the unit has four screw holes that
are used for mounting the "L" brackets to the MPC. The "L" brackets can either
be mounted facing the front of the unit or the rear of the unit, using the same
four holes. Use four screws (supplied with the bracket) to secure each bracket
to the MPC.
c) MPC-16H (Horizontal) Units: Each end of the unit has eight screw holes; four
screw holes for front mounting, and four screw holes for rear mounting. Use
four screws (supplied with the bracket) to secure an "L" bracket to each side of
the unit. If the front of the MPC unit will face outwards, use the front four holes;
if the back of the MPC unit will face outward, use the rear four holes.
a) MPC-20V (Vertical) Units: The "L" brackets can either be attached to the
back or side of the unit, and the unit can also be installed to face the front,
rear, or either side of the equipment rack. Each end of the MPC features seven
screw holes for attaching the brackets, this allows you to mount the brackets
on either side of the unit, and in one of two possible positions on the back.
When mounting the brackets on the back of the unit, use screw holes 1 and 2
or 2 and 3 as shown in Figure 1. Use two screws (supplied with the bracket)
to secure one bracket to the top of the MPC and the second bracket to the
bottom of the MPC.

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MPC Managed Power Controllers - Rack Mounting Options
2. Attaching the "L" Brackets to the Equipment Rack: Determine which direction
the MPC unit will face in the rack, then line the "U" slots in the "L" Bracket up with
two holes in the equipment rack mounting strip. Make certain that the unit is
level, and then use two screws to secure each "L" bracket to the rack as shown in
Figure 2.
1 2 3
4
5
Figure 1: Mounting Holes; MPC-20V Back Panel
MPC-20V Unit
Equipment Rack
“L” Bracket
Retaining Screws
Figure 2: Attaching the "L" Brackets to the Equipment Rack (MPC-20V Shown)

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MPC Managed Power Controllers - Rack Mounting Options
2. Mounting Buttons
The Mounting Buttons allow MPC-20V (vertical) units to be mounted in any equipment
rack that includes mounting button holes, as shown in Figure 4. Depending on the
location of the mounting button holes in your equipment rack, this can allow the
MPC-20V to be mounted on the posts at the rear of the equipment rack, or in some
cases, even mounted on the outside of the rack corner posts.
1. Attaching the Mounting Buttons to the MPC-20V: Attach four Mounting Buttons
to the back panel of the MPC-20V unit as described below:
a) Insert a retaining screw into each Mounting Button with the top of the screw
aligned with the large end of the Mounting Button, as shown in Figure 3.
b) Locate the screw holes for the Mounting Buttons on the MPC-20V back panel.
There are two screw holes at the top of the back panel and two holes at the
bottom. Note that the screw holes for the Mounting Buttons are not the same
holes shown in Figure 1; the Mounting Button screw holes are located at the
top of the unit, directly above the screw holes shown in Figure 1, and at the
bottom, about three inches below the holes shown in Figure 1.
c) Firmly attach two Mounting Buttons to the screw holes at the top of the MPC
and two Mounting Buttons to the screw holes at the bottom of the unit.
2. Attach the MPC to the Equipment Rack: Align the Mounting Buttons with the top
end of each mounting button hole (see Figure 4.) Press the mounting buttons into
the mounting button holes, and then slide the unit downwards, so each Mounting
Button seats firmly in the lower end of each corresponding mounting button hole.
Retaining Screw
Mounting Button
Screw Hole on
MPC-20V Back Panel
Figure 3: Attaching Mounting Buttons to MPC-20V (Vertical) Units
Approx. 3/4 Inch
Approx. 3/8 Inch
Figure 4: Mounting Button Holes

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MPC Managed Power Controllers - Rack Mounting Options
3. Hook Bracket Mounting (MPC-20V Only)
The Hook Brackets allow MPC-20V (vertical) units to be easily mounted in Dell™ style
equipment racks. The Hook Brackets can be used to mount the MPC-20V in any rack
that includes Dell™ style mounting rails as shown in Figure 5.
The Hook Brackets, which are supplied in a right and left hand pair, allow MPC-20V units
to be mounted to any one of the four corner posts in a Dell™ style equipment rack.
1. Attaching the Brackets to the MPC-20V: First determine which direction the
MPC will face after mounting, and then secure the Hook Brackets to the MPC-20V
accordingly, using the screws provided.
a) The Hook Brackets can be attached to the back or sides of the unit, and the
unit can also be installed to face the front, rear, or either side of the equipment
rack.
b) Each end of the MPC features seven screw holes for attaching the brackets,
this allows you to mount the brackets on either side of the unit, and in one of
two possible positions on the back. When mounting the brackets on the back
of the unit, use screw holes 1 and 2 or 2 and 3 as shown in Figure 1.
c) Use two screws (supplied with the bracket) to secure one bracket to the top of
the MPC-20V and the second bracket to the bottom of the MPC-20V.
2. Attaching the Hook Brackets to the Equipment Rack: Insert each Hook Bracket's
tab into one of the square holes in the corner post, then slide the bracket down
until the hook locks in place with the rack as shown in Figure 5. After each Hook
Bracket is firmly seated, use a retaining screw to secure each Hook Bracket to the
equipment rack.
Equipment
Rack
Hook Bracket Tab
(Hooked into Rack)
Hook Bracket
MPC-20V Unit
Figure D.5: Attaching the Hook Brackets to the Equipment Rack

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MPC Managed Power Controllers - Rack Mounting Options
4. Zero-U Pocket Bracket Mounting (MPC-20V Only)
The Zero-U Pocket Brackets allow you to mount the MPC-20V in APC® style racks, that
include a pocket or channel for zero unit mounting as shown in Figures 6 and 7.
The Zero-U Pocket Brackets allow MPC-20V units to be mounted directly into the
channel or pocket at the rear of the rack, and can either be nested inside the pocket
in order to use as little space as possible, or mounted on top of the pocket, in order
to provide a convenient cavity for routing cables. When the Zero-U Pocket Bracket is
used, the MPC-20V will always be mounted facing the interior of the rack.
1. Attaching the Zero-U Pocket Brackets to the MPC:
a) Determine whether the MPC-20V will be nested within the rack pocket, or will
be mounted outside the pocket in order to provide a cavity for cable routing.
b) Insert the screws supplied with the bracket into the three holes in the center
of the Zero-U Pocket Bracket and then thread them into holes 4, 2 and 5 (see
Figure 1) on the back of the MPC-20V unit as shown in Figures 6 and 7.
2. Attaching the Zero-U Pocket Brackets to the Equipment Rack: Align the MPC
with the rack pocket and then use appropriate retaining screws to secure the
Zero-U Pocket Brackets to the rack pocket as shown in Figures 6 and 7.
Rack Pocket
Zero-U Pocket
Bracket
MPC-20V
Unit
Mounting
Screws
Mounting
Screws
Figure 6: Zero-U Pocket Brackets (Cross Section; Nested in Pocket)
Rack Pocket
Zero-U Pocket
Bracket
MPC-20V
Unit
Mounting
Screws
Cavity Left
for Routing
Cables
Figure 7: Zero-U Pocket Brackets (Cross Section; Outside Pocket to Allow Cable Cavity)

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MPC Managed Power Controllers - Rack Mounting Options
5. Output Cable Keeper
The Output Cable Keeper extends approximately two inches above the face of the
MPC-20V unit, and provides a convenient means to tie output cables in place, to prevent
them from being accidentally disconnected.
To install the Output Cable Keeper on your MPC-20V unit, please proceed as follows:
1. Refer to the electrical safety warnings in Chapter 4 and at the beginning of the
MPC Series user's guide, and then disconnect the input power supply cables from
the MPC-20V unit. Next, remove the output cables from the MPC-20V, noting the
precise plug/location where each output cable was plugged in.
2. Align the Output Cable Keeper with the face of the MPC-20V unit as shown in
Figure 8 below. Note that there are two horizontally aligned screw holes at the top
of both the MPC-20V unit, and two vertically aligned screw holes at the bottom of
the MPC-20V unit. Use the supplied mounting screws to securely attach the Cable
Keeper to the face of the MPC-20V unit.
3. Reconnect the output cables to the same locations where they were previously
plugged in, and then use a tie wrap to secure each output cable to the Cable
Keeper.
4. Reconnect the input power supply cables to the MPC-20V unit.
Managed Power Controller
MPC-20V
8.8.8 8.8.8
DEFAULT
AUDIBLE
ALARM ON
DISPLAY
SELECTION
AMPS KWATS VOLTS TEMP
INPUT A INPUT B
AUX
1
AUX
3
REMOTE
DISPLAY
AUX
2
Ethernet
10/100
CONSOLE
Outlet Cable Keeper
Mounting
Screws
Mounting
Screws
Screw
Holes
Screw
Holes
Figure 8: Installing the Output Cable Keeper (MPC-20V Units Only)
Trademarks Used in this Manual:
Dell™ is a registered trademark of Dell, Incorporated.
APC® is a registered trademark of the American Power Conversion Corporation.
All trademarks mentioned in this manual are acknowledged to be the property of the
trademark owners.

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