Black Box RM050A-R3 User manual

RM050A-R3
Mount heavy equipment in tight spaces.
Ultra Wallmount Racks User’s Manual
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RM050A-R3
RM051A-R3

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Page 2 RM050A-R3
Trademarks Used in this Manual
We‘re here to help! If you have any questions about your application
or our products, contact Black Box Tech Support at 724-746-5500
or go to blackbox.com and click on “Talk to Black Box.”
You’ll be live with one of our technical experts in less than 30 seconds.
Trademarks Used in this Manual
Black Box and the Double Diamond logo are registered trademarks, and Elite is a trademark, of BB Technologies, Inc.
PLEXIGLAS is a registered trademark of Roehm GmbH & Co.
UL is a registered trademark of Underwriters’ Laboratories.
VELCRO is a registered trademark of Velcro Industries B.V.
Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.

Page 3
RM050A-R3
Table of Contents
Preface ........................................................................................................................................................................................................ 4
Safety Symbols Used in This Manual.................................................................................................................................................... 4
Safety Considerations.......................................................................................................................................................................... 4
1. Specifications ................................................................................................................................................................................... 5
1.1 Size ................................................................................................................................................................................... 5
1.2 General ................................................................................................................................................................................... 5
1.3 RM050A-R3 Drawings.............................................................................................................................................................. 6
1.4 RM051A-R3 Drawings.............................................................................................................................................................. 9
2. Overview ..................................................................................................................................................................................12
2.1 Introduction............................................................................................................................................................................12
2.2 Features ..................................................................................................................................................................................12
2.3 What’s Included......................................................................................................................................................................12
3. Mounting Instructions ......................................................................................................................................................................13
3.1 Receiving, Unpacking, and Removing the Ultra Wallmount Rack from the Carton ...................................................................13
3.2 Wood Studded Wall................................................................................................................................................................13
3.3 Masonry Wall Surface .............................................................................................................................................................13
3.4 Loading Equipment.................................................................................................................................................................14
3.5 Power ..................................................................................................................................................................................14
3.6 Protective Grounding ..............................................................................................................................................................14
3.6.1 Connecting the Main Protective Grounding Stud to the Dedicated Branch Circuit Grounding Conductor ...................14
3.6.2 Connecting the Main Protective Grounding Stud to the Protective Bonding Conductors.............................................14

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Page 4 RM050A-R3
Preface/Safety
Preface
This manual is provided to prevent service personnel from committing an act that results in the risk of fire, electric shock, or injury
to persons. Only trained service personnel should receive, unpack, and assemble the Ultra Wallmount Rack. In addition, only
trained service personnel should install equipment in the rack.
Safety Symbols Used in This Manual
This manual provides general safety guidelines to be observed during installation, operation, and maintenance of the Ultra
Wallmount Rack.
WARNING: Failure to follow directions in the warning could result in injury to persons or loss of life.
CAUTION: Failure to follow directions in the caution could result in damage to equipment or storage data.
Safety Considerations
WARNING: Improper handling and use of the Ultra Wallmount Rack could result in equipment damage, serious injury,
or possible death.
Only trained service personnel should be used to remove the rack from the carton. Also be sure you have a sufficient number of
service personnel. Do not attempt to move racks by yourself.
Only UL®Listed ITE units should be installed in the Ultra Wallmount Rack.
Be sure to read and follow all individual manufacturer equipment manuals for safety and installation instructions.
Proper spacing is required when installing electrical equipment to avoid electrical shock.
Maintain minimum spacing between the accessories and components and the Ultra Wallmount Rack for safe operation of the
equipment when installed in accordance with the National Electric Code ANSI/NFPA 70-1999.
The ambient temperature operating range for the Ultra Wallmount Rack and accessories is +50 to +95° F (+10 to +35° C). The
non-operating temperature is -4 to +140° F (-20 to +60° C).

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RM050A-R3
Chapter 1: Specifications
1. Specifications
1.1 Size
Table 1-1 lists specifications for the rack shown in Figures 1-1 through 1-10.
Table 1-1. Rack size specifications.
Part Number #of RUs Height Width Depth
RM050A-R3 11 23.57" (59.86 cm) 19.8" (50.3 cm) 25" (63.5 cm)
RM051A-R3 19 35.57" (90.34 cm) 19.8" (50.3 cm) 25" (63.5 cm)
1.2 General
Cable Openings (Bottom Plate) — 3" diameter
Certifications: UL®certified to UL2416
Construction:
Baseplate: 14-gauge steel;
Sides: 11-gauge steel;
Rails: 11-gauge steel
Finish: Black powder coat
Grounding: Ground studs located on rear and middle sections
Mounting Hardware — 1⁄4" diameter
Rail Type: 12-24 tapped
Temperature Tolerance —
Operating: +50 to +95° F (+10 to +35° C);
Non-operating: -4 to +140° F (-20 to +60° C)
Weight Capacity: 150 lb. (68 kg)

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Page 6 RM050A-R3
Chapter 1: Specifications
1.3 RM050A-R3 Drawings
Figure 1-1. RM050A-R3.
Table 1-2. RM050A-R3 components.
Number* Quantity Description
1 1 Swing rack base plate
2 1 Top/bottom brace
3 4 Bolt, 3⁄8"-16 x 1⁄2"hex head, gr 2, steel, black
4 4 Socket head shoulder set screw
5 4 1⁄4"-20 x 1⁄2"L hex head screw
6 2 21.258"H x 25"D swing rack side weldment
7 1 21"H reinforced swing frame weldment
8 4 Nut, 1⁄4-20, steel, grade 2, zinc plated
*NOTE: The numbered components in Table 1-2 refer to Figure 1-1.

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RM050A-R3
Chapter 1: Specifications
Figure 1-2. RM050A-R3 assembled view.
Figure 1-3. RM050A-R3 front view.

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Page 8 RM050A-R3
Chapter 1: Specifications
Figure 1-4. RM050A-R3 right side view.
Figure 1-5. RM050A-R3 top view.

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RM050A-R3
Chapter 1: Specifications
1.4 RM051A-R2 Drawings
Figure 1-6. RM051A-R3.
Table 1-3. RM051A-R3 components.
Table 1-3. RM051A-R2 components.
Number* Quantity Description
1 1 35"H reinforced swing frame weldment
2 2 32.258"H x 25"D swing rack side weldment
3 1 Top/bottom brace
4 4 Bolt, 3⁄8"-16 x 1⁄2" hex head, gr 2, steel, black
5 4 Socket head shoulder set screw
6 4 1⁄4"-20 x 1⁄2"L hex head screw
7 1 Swing rack base plate
8 4 Nut, 1⁄4-20, steel, grade 2, zinc plated
*NOTE: The numbered components described in Table 1-3 refer to Figure 1-6.

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Page 10 RM050A-R3
Chapter 1: Specifications
Figure 1-7. RM051A-R3 assembled view.
Figure 1-8. RM051A-R3 front view.

Pa g e 11
RM050A-R3
Chapter 1: Specifications
Figure 1-9. RM051A-R3 right side view.
Figure 1-10. RM051A-R3 top view.

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Page 12 RM050A-R3
Chapter 2: Overview
2. Overview
2.1 Introduction
Ultra Wallmount Racks are designed to securely hold 19" rackmount equipment, networking equipment, phone
equipment, etc. in tight spaces or closets.
2.2 Features
• 25" depth provides plenty of rooom to open and close the rack, even when fully loaded with patch panels, hubs, or routers.
• Reinforcement base plate.
• Welded steel frame.
• Can be reversed to open left or right.
2.3 What’s Included
Your package should include the following items. If anything is missing or damaged, please contact Black Box Technical Support
at 724-746-5500 or [e-mail].
• Swing rack base plate
• Top/bottom brace
• (4) 3⁄8"-16 x 1⁄2" hex head bolts, black
• (4) socket head shoulder set screws
• (4) 1⁄4"-20" x 1⁄2" hex head screws
• (4) 1⁄4"-20" keps nuts with external tooth lock washer
• (2) swing rack sides
• (1) swing frame
• (30) 12-24 mounting screws
• Mounting hardware for wood studded wall only, including (4) 3⁄8" x 2" lag bolts and (4) flat washers
• Bonding and grounding system with (1) ground jumper

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RM050A-R3
Chapter 3: Mounting Instructions
3. Mounting Instructions
3.1 Receiving, Unpacking, and Removing the Ultra Wallmount Rack from the Carton
Inspect for damage and report damage if there is damage before receiving. Refer to Section 2.3 for what‘s included
in the package.
Unpack the rack by carefully removing the corrugated carton and corners. Avoid damaging the enclosure when removing
packaging.
WARNING: Only trained service personnel should be used to remove the rack from the carton. Also be sure you have a
sufficient number of service personnel. Do not attempt to move racks by yourself.
WARNING: Be careful when moving racks before installation. Sudden stops and starts, excessive force, obstructed routes, and
uneven floor surfaces may cause the rack to topple over.
3.2 Wood Studded Wall
Once the location on the wall has been determined, inspect the wall surface. The wall must be flat and square in the horizontal
and vertical plane to ensure the Ultra Wallmount Rack closes correctly. If the wall is not flat and square, you might need to use
shims.
Wood studded wall mounting instructions apply to a 2" x 4" wood stud wall with ¾” plywood.
Once you locate the lag bolts, you can mount the back section to the wall and secure it with the 3⁄8"-2" lag bolts and washers.
WARNING: Improper handling and use of the Ultra Wallmount Rack could result in equipment damage, serious injury,
or possible death.
3.3 Masonry Wall Surface
For a masonry wall surface, the installer must provide the appropriate hardware.

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Page 14 RM050A-R3
Chapter 3: Mounting Instructions
3.4 Loading Equipment
WARNING: Only install equipment after the Ultra Wallmount Rack has been properly secured and mounted to the wall.
Maximum Load Capacity
The rated or maximum load capacity for the RM050A-R3 is 75 pounds, and the maximum load capacity for the RM051A-R3 is
100 pounds. To maintain uniform distribution of the mechanical load in the rack, load the heaviest equipment first at the bottom
and the lighter units at the top.
3.5 Power
When using power distribution units (PDUs), each PDU should be connected to a committed branch circuit that is rated for the
continuous load of all the connected equipment.
When not using a PDU, each piece of equipment should be connected to a dedicated branch circuit.
3.6 Protective Grounding
A main protective grounding stud and grounding studs are provided along with grounding jumper wires that electrically bond the
swing frame doors to one of the swing rack sides.
WARNING: To avoid injury to persons or loss of life, ground each enclosure individually to the dedicated branch circuit earthing
ground.
3.6.1 Connecting Main Protective Grounding Stud to the Dedicated Branch Circuit Earthing Ground
Conductor
Connect the dedicated branch circuit ground conductor to the main protective grounding stud located at the rear of one of the
swing rack sides.
3.6.2 Connecting Main Protective Grounding Stud to the Protective Bonding Conductors
Connect the swing frame to the grounding stud located at the front of one swing rack side using a listed ring or closed-loop
terminal.

Page 15
RM050A-R3
Chapter 3: Mounting Instructions
Figure 3-1. Ultra Wallmount Rack with Jumper Wire and Ground Studs.
Jumper wire
Ground stud

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RM050A-R3, rev. 3