Black Box RMT35X Series User manual

LOW-PROFILE
WALLMOUNT
CABINETS
24/7 TECHNICAL SUPPORT AT 1.877.877.2269 OR VISIT BLACKBOX.COM
RMT35X SERIES
USER MANUAL

2
TABLE OF CONTENTS
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SAFETY INFORMATION............................................................................................................................................................................... 3
Receiving, Unpacking, and Removing the Low-Profile Wallmount Cabinet from the Pallet............................................................................... 3
1. SPECIFICATIONS...................................................................................................................................................................................... 4
2. OVERVIEW................................................................................................................................................................................................. 5
2.1 Introduction.......................................................................................................................................................................................................... 5
2.2 Features ............................................................................................................................................................................................................... 5
2.3 What’s Included................................................................................................................................................................................................... 6
2.3.1 RMT351A ..........................................................................................................................................................................................................................6
2.3.2 RMT351LA .......................................................................................................................................................................................................................7
2.3.3 RMT352A-R3...................................................................................................................................................................................................................8
2.3.4 RMT352LA.......................................................................................................................................................................................................................9
2.3.5 RMT353A-R3.................................................................................................................................................................................................................10
2.3.6 RMT353LA.....................................................................................................................................................................................................................11
2.4 Hardware Description....................................................................................................................................................................................... 12
2.4.1 RMT351A........................................................................................................................................................................................................................13
2.4.2 RMT351LA .....................................................................................................................................................................................................................14
2.4.3 RMT352A-R3.................................................................................................................................................................................................................15
2.4.4 RMT352LA .....................................................................................................................................................................................................................16
2.4.5 RMT353A-R3.................................................................................................................................................................................................................17
2.4.6 RMT353LA.....................................................................................................................................................................................................................18
3. IN STA LL ATI ON ....................................................................................................................................................................................... 19
3.1 Wallmounting Instructions ............................................................................................................................................................................... 19
3.1.1 Tools List .........................................................................................................................................................................................................................19
3.1.2 Instructions.....................................................................................................................................................................................................................19
3.2 Inside Mounting Bracket Adjustment Instructions ........................................................................................................................................ 20
3.2.1 Tools List.........................................................................................................................................................................................................................20
3.2.2 Instructions....................................................................................................................................................................................................................20
3.3 Door Hinge Side Change Instructions ............................................................................................................................................................. 21
3.3.1 Tools List.........................................................................................................................................................................................................................21
3.3.2 Instructions....................................................................................................................................................................................................................21

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RECEIVING, UNPACKING, AND REMOVING THE LOW-PROFILE WALLMOUNT CABINET FROM THE
PALLET
Inspect for damage and report damage if there is damage before receiving. 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 Low-Profile Wallmount Cabinet from the carton.
Please know the weight of what you are picking up.
WARNING: When installing a Low-Profile Wallmount Cabinet to materials such as wood, cinder block, concrete, etc., consider
the load capacity of the wallmount enclosure, and be sure to check with local authorities to determine the appropiriate hardware
requirements for your conditions.
Black Box recommends that you consult an experienced maintenance and/or technical person regarding the proper wallmounting
hardware and procedures to be used for the anticipated load capacity of the wallmount cabinet.
RATED OR MAXIMUM LOAD CAPACITY FOR THE LOW-PROFILE WALLMOUNT CABINET DEPENDS ON THE MODEL NUMBER.
SEE THE TABLE BELOW.
TABLE 2-1. AVAILABLE MODELS
PRODUCT CODE PRODUCT NAME MAXIMUM LOAD CAPACITY
RMT351A 2U Low-Profile Vertical Wallmount Cabinet - 24"D 200 lb. (90.9 kg)
RMT351L A 2U Low-Profile Vertical Wallmount Cabinet - 36"D 200 lb. (90.9 kg)
RMT352A-R3 4U Low-Profile Vertical Wallmount Cabinet - 24"D 200 lb. (90.9 kg)
RMT352LA 4U Low-Profile Vertical Wallmount Cabinet - 36"D 200 lb. (90.9 kg)
RMT353A-R3 6U Low-Profile Vertical Wallmount Cabinet - 24"D 200 lb. (90.9 kg)
RMT353LA 6U Low-Profile Vertical Wallmount Cabinet - 36"D 200 lb. (90.9 kg)
SAFETY INFORMATION

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CHAPTER 1: SPECIFICATIONS
TABLE 1-1. SPECIFICATIONS
SPECIFICATION RMT351A R MT351L A RMT352A-R3 RMT352LA RMT353A-R3 RMT353L A
FInish Powder Coat,
Pantone 2U, 2X
Powder Coat,
Pantone 2U, 2X
Powder Coat,
Pantone 2U, 2X
Powder Coat,
Pantone 2U, 2X
Powder Coat,
Pantone 2U, 2X
Powder Coat,
Pantone 2U, 2X
Construction
Welded Steel,
1.2 mm (18 ga.) to
2.0 mm (14 ga.)
Welded Steel,
1.2 mm (18 ga.) to
2.0 mm (14 ga.)
Welded Steel,
1.2 mm (18 ga.) to
2.0 mm (14 ga.)
Welded Steel,
1.2 mm (18 ga.) to
2.0 mm (14 ga.)
Welded Steel,
1.2 mm (18 ga.)
to 2.0 mm (14 ga.)
Welded Steel,
1.2 mm (18 ga.)
to 2.0 mm (14 ga.)
Outside Height 29.44" (74.77 cm) 41.44" (105.26 cm) 29.44" (74.77 cm) 41.46” (105.31 cm) 29.44” (74.77 cm)"41.47” (105.34 cm
Outside Width 22.42" (56.94 cm) 22.42" (56.94 cm) 22.42" (56.94 cm) 22.42" (56.94 cm) 22.42" (56.94 cm) 22.42" (56.94 cm)
Outside Depth 5.25" (13.34 cm) 5.25" (13.34 cm) 8.75" (22.23 cm) 8.75" (22.23 cm) 12.25" (31.12 cm) 12.25" (31.12 cm)
Rack Units (U) 2U 2U 4U 4U 6U 6U
Racking Depth 24" (60.9 cm) 36" (91.4 cm) 24” (60.9 cm) 36” (91.4 cm) 24” (60.9 cm) 36” (91.4 cm)
Environmental Indoor Indoor Indoor Indoor Indoor Indoor
Load Capacity 200 lb. (90.9 kg) 200 lb. (90.9 kg) 200 lb. (90.9 kg) 200 lb. (90.9 kg) 200 lb. (90.9 kg) 200 lb. (90.9 kg)
Weight EIGHT 33 lb. (15.0 kg) 38 lb. (17.2 kg) 39 lb. (17.7 kg) 45 lb. (20.4 kg) 45 lb. (20.4 kg) 51 lb. (23.2 kg)

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CHAPTER 2: OVERVIEW
2.1 INTRODUCTION
Low-Profile Wallmount Cabinets are a dependable choice for tight networking environments and security-sensitive applications. Unique
vertical racking keeps your equipment out of the way while connectors stay easily accessible.
Durable steel construction makes these models a good choice for industrial spaces and expanding businesses.
2.2 FEATURES
Space-saving vertical mounting for network devices.
Mount out of the way on nearly any wall or vertical surface.
Models with 2U, 4U, or 6U of rack space.
Heavy-duty steel construction.
2U, 4U, or 6U of 19" EIA-310 square hole rails.
2-point equipment mounting, 24" or 36" equipment depth.
Mounting rails have 4” of vertical adjustment inside cabinet.
200 lb. (90.9 kg) equipment capacity.
Top door for monitoring access.
Front door for maintenance access.
16" C/C and 19" C/C mounting holes (4-point mounting for both widths).
Mesh on doors allows for secure cooling.
Piano hinges on front and top doors ensure secure / strong door-to-body connection.
Up to (4) top and (4) bottom 1" (2.5 cm) conduit knock-outs.
Reversible front door allows for L or R opening.
Front and top door have positive retention locks ensuring doors to open when unlocked unless activated.
Secure models have fan mounts and vented bottom for heat reduction.
EIA compliant.

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CHAPTER 2: OVERVIEW
2.3 WHAT’S INCLUDED
Your package should include the following items. If anything is missing or damaged, contact Black Box Technical Support
at 877-877-2269 or [e-mail].
2.3.1 RMT351A
(1) 24” Deep 2U Wallmount Cabinet including the following:
(1) 2U Cabinet Back Assembly
(1) 2U Cabinet Door Assembly
(2) 2U square hole rail
(1) Front Door Lock (Tai-Sam DKS-3)
(1) Top Door Lock (Tai-Sam MS-657-24)
(8) M6 x 12mm Machine Screw
(8) M6 Flange nut
(4) 1/4”-20 1/2” Carriage Bolt
(4) 1/4”-20 Flange nut
(6) M3 x 8-mm Machine Screw
(1) Piano Hinge for Front Door
(4) Rubber Door Bumper
(4) 1/4”-10 x 2” Lag Screw for Wood
(4) 1/4” Flat Washer
(4) 1/4” Lock Washer
(8) M5 Machine Screw
(8) M5 Cage Nut
(1) Pair of Top Lock Keys
(1) Pair of Side Lock Keys

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CHAPTER 2: OVERVIEW
2.3.2 RMT351LA
(1) 36” Deep 2U Wallmount Cabinet including the following:
(1) 2U Cabinet Back Assembly
(1) 2U Cabinet Door Assembly
(2) 2U square hole rail
(1) Front Door Lock (Tai-Sam DKS-3)
(1) Top Door Lock (Tai-Sam MS-657-24)
(12) M6 x 12mm Machine Screw
(12) M6 Flange nut
(4) 1/4”-20 1/2” Carriage Bolt
(4) 1/4”-20 Flange nut
(6) M3 x 8-mm Machine Screw
(1) Piano Hinge for Front Door
(4) Rubber Door Bumper
(4) 1/4”-10 x 2” Lag Screw for Wood
(4) 1/4” Flat Washer
(4) 1/4” Lock Washer
(8) M5 Machine Screw
(8) M5 Cage Nut
(1) Pair of Top Lock Keys
(1) Pair of Side Lock Keys

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CHAPTER 2: OVERVIEW
2.3.3 RMT352A-R3
(1) 24” Deep 4U Wallmount Cabinet including the following:
(1) 4U Cabinet Back Assembly
(1) 4U Cabinet Door Assembly
(2) 4U square hole rail
(1) Front Door Lock (Tai-Sam DKS-3)
(1) Top Door Lock (Tai-Sam MS-657-24)
(8) M6 x 12mm Machine Screw
(8) M6 Flange nut
(4) 1/4”-20 1/2” Carriage Bolt
(4) 1/4”-20 Flange nut
(6) M3 x 8-mm Machine Screw
(1) Piano Hinge for Front Door
(4) Rubber Door Bumper
(4) 1/4”-10 x 2” Lag Screw for Wood
(4) 1/4” Flat Washer
(4) 1/4” Lock Washer
(16) M5 Machine Screw
(16) M5 Cage Nut
(1) Pair of Top Lock Keys
(1) Pair of Side Lock Keys

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CHAPTER 2: OVERVIEW
2.3.4 RMT352LA
(1) 36" Deep 4U Wallmount Cabinet including the following:
(1) 4U Cabinet Back Assembly
(1) 4U Cabinet Door Assembly
(2) 4U square hole rail
(1) Front Door Lock (Tai-Sam DKS-3)
(1) Top Door Lock (Tai-Sam MS-657-24)
(12) M6 x 12mm Machine Screw
(12) M6 Flange nut
(4) 1/4”-20 1/2” Carriage Bolt
(4) 1/4”-20 Flange nut
(6) M3 x 8-mm Machine Screw
(1) Piano Hinge for Front Door
(4) Rubber Door Bumper
(4) 1/4”-10 x 2” Lag Screw for Wood
(4) 1/4” Flat Washer
(4) 1/4” Lock Washer
(16) M5 Machine Screw
(16) M5 Cage Nut
(1) Pair of Top Lock Keys
(1) Pair of Side Lock Keys

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CHAPTER 2: OVERVIEW
2.3.5 RMT353A-R3
(1) 24” Deep 6U Wallmount Cabinet including the following:
(1) 6U Cabinet Back Assembly
(1) 6U Cabinet Door Assembly
(2) 6U square hole rail
(1) Front Door Lock (Tai-Sam DKS-3)
(1) Top Door Lock (Tai-Sam MS-657-24)
(8) M6 x 12-mm Machine Screw
(8) M6 Flange nut
(4) 1/4”-20 1/2” Carriage Bolt
(4) 1/4”-20 Flange nut
(6) M3 x 8-mm Machine Screw
(1) Piano Hinge for Front Door
(4) Rubber Door Bumper
(4) 1/4”-10 x 2” Lag Screw for Wood
(4) 1/4” Flat Washer
(4) 1/4” Lock Washer
(24) M5 Machine Screw
(24) M5 Cage Nut
(1) Pair of Top Lock Keys
(1) Pair of Side Lock Keys

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CHAPTER 2: OVERVIEW
2.3.6 RMT353LA
(1) 36" Deep 6U Wallmount Cabinet including the following:
(1) 6U Cabinet Back Assembly
(1) 6U Cabinet Door Assembly
(2) 6U square hole rail
(1) Front Door Lock (Tai-Sam DKS-3)
(1) Top Door Lock (Tai-Sam MS-657-24)
(12) M6 x 12mm Machine Screw
(12) M6 Flange nut
(4) 1/4”-20 1/2” Carriage Bolt
(4) 1/4”-20 Flange nut
(6) M3 x 8-mm Machine Screw
(1) Piano Hinge for Front Door
(4) Rubber Door Bumper
(4) 1/4”-10 x 2” Lag Screw for Wood
(4) 1/4” Flat Washer
(4) 1/4” Lock Washer
(24) M5 Machine Screw
(24) M5 Cage Nut
(1) Pair of Top Lock Keys
(1) Pair of Side Lock Keys

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CHAPTER 2: OVERVIEW
2.4 HARDWARE DESCRIPTION
Six models of the Low-Profile Wallmount Cabinets are available. The table below lists the models, and the illustrations that follow
show each cabinet in detail.
TABLE 2-1. AVAILABLE MODELS
PRODUCT CODE PRODUCT NAME
RMT351A 2U Low-Profile Vertical Wallmount Cabinet - 24"D
RMT351L A 2U Low-Profile Vertical Wallmount Cabinet - 36"D
RMT352A-R3 4U Low-Profile Vertical Wallmount Cabinet - 24"D
RMT352LA 4U Low-Profile Vertical Wallmount Cabinet - 36"D
RMT353A-R3 6U Low-Profile Vertical Wallmount Cabinet - 24"D
RMT353LA 6U Low-Profile Vertical Wallmount Cabinet - 36"D

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CHAPTER 2: OVERVIEW
2.4.1 R M T 351A
Figure 2-1 illustrates the 2U Low-Profile Vertical Wallmount Cabinet - 24"D. Figure 2-2 shows its dimensions.
FIGURE 2-1. RMT351A
FIGURE 2-2. RMT351A DIMENSIONS

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CHAPTER 2: OVERVIEW
2.4.2 RMT351LA
Figure 2-3 illustrates the 2U Low-Profile Vertical Wallmount Cabinet - 36”D. Figure 2-4 shows its dimensions.
FIGURE 2-3. RMT351LA
FIGURE 2-4. RMT351LA DIMENSIONS

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CHAPTER 2: OVERVIEW
2.4.3 RMT352A-R3
Figure 2-5 illustrates the 4U Low-Profile Vertical Wallmount Cabinet - 24”D. Figure 2-6 shows its dimensions.
FIGURE 2-5. RMT352A-R3
FIGURE 2-6. RMT352A-R3 DIMENSIONS

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CHAPTER 2: OVERVIEW
2.4.4 RMT352LA
Figure 2-7 illustrates the 4U Low-Profile Vertical Wallmount Cabinet - 36”D. Figure 2-6 shows its dimensions.
FIGURE 2-7. RMT352LA
FIGURE 2-8. RMT352LA DIMENSIONS

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CHAPTER 2: OVERVIEW
2.4.5 RMT353A-R3
Figure 2-9 illustrates the 6U Low-Profile Vertical Wallmount Cabinet - 24”D. Figure 2-10 shows its dimensions.
FIGURE 2-9. RMT353A-R3
FIGURE 2-10. RMT353A-R3 DIMENSIONS

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CHAPTER 2: OVERVIEW
2.4.6 RMT353LA
Figure 2-11 illustrates the 6U Low-Profile Vertical Wallmount Cabinet - 36”D. Figure 2-12 shows its dimensions.
FIGURE 2-11. RMT353LA
FIGURE 2-12. RMT353LA DIMENSIONS

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C HA PTE R 3: I NSTA LL AT IO N
3.1 WALLMOUNTING INSTRUCTIONS
3.1.1 T O O L S L I S T
Power Drill with 7/16” Socket
Level
Stud-Finder (optional)
3.1.2 INSTRUCTIONS
STEP 1: Locate wall studs for mounting low profile wallmount cabinet and determine if they are spaced 16” or 19” apart
to determine the correct mounting holes to use.
STEP 2: Mark mounting hole placement on wall for the top mounting holes in the cabinet. Cabinet should be mounted
into the middle of wall studs – mounting holes will be either 16” or 19” apart depending on the spacing of the wall studs.
Use the level to make sure the holes will be at the same height.
STEP 3: Use the drill to drive ONE (1) ¼”-10 X 2” LAG SCREW FOR WOOD with ONE (1) ¼” LOCK WASHER and ONE (1) ¼” FLAT
WASHER approximately ¾ of the way into the first marked mounting hole.
STEP 4: Repeat step (3), driving ONE (1) ¼”-10 X 2” LAG SCREW FOR WOOD with ONE (1) ¼” LOCK WASHER and ONE (1) ¼” FLAT
WASHER approximately ¾ of the way into the second marked mounting hole.
STEP 5: Place low profile wallmount cabinet onto these TWO (2) mounting screws. The ¼” FLAT WASHER and ¼” LOCK WASHER
should be inside the cabinet (see picture). Make sure the cabinet rests all the way down with the mounting screws sitting
in the narrow part of both the top mounting holes. Check that cabinet is level before tightening top mounting screws
STEP 6: Once cabinet is positioned correctly on the top TWO (2) mounting screws and is level, use the drill to tighten
both mounting screws into the wall.
STEP 7: Complete wall mounting the low profile cabinet by driving the remaining TWO (2) ¼”-10 X 2” LAG SCREWS FOR WOOD,
TWO (2) ¼” LOCK WASHERS, and TWO (2) ¼” FLAT WASHERS into the correctly spaced bottom mounting holes in the cabinet.
FIGURE 3-1. MOUNTING THE RMT351A CABINET ON THE WALL
NOTE: Instructions for mounting
the cabinet on the wall
are the same for all models.

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C HA PTE R 3: I NSTA LL AT IO N
3.2 INSIDE MOUNTING BRACKET ADJUSTMENT INSTRUCTIONS
3.2.1 TOOLS LIST
7/16” Wrench
3.2.2 INSTRUCTIONS
STEP 1: Use the 7/16” wrench to remove the TWO (2) ¼”-20 FLANGE NUTS holding on the SQUARE HOLE MOUNTING BRACKET
STEP 2: Remove SQUARE HOLE MOUNTING BRACKET and TWO (2) ¼”-20 X ½” SQUARE NECK CARRIAGE BOLTS from the inside
mounting bracket in the low profile wallmount cabinet
STEP 3: Locate the square mounting holes at the desired mounting height and place the TWO (2) ¼”-20 X ½” SQUARE NECK
CARRIAGE BOLTS in these holes. Carriage bolts should be facing in, with the heads on the outside of the mounting brackets
STEP 4: Place SQUARE HOLE MOUNTING BRACKET on these TWO (2) ¼”-20 X ½” SQUARE NECK CARRIAGE BOLTS and secure
with the TWO (2) ¼”-20 FLANGE NUTS. Tighten the ¼”-20 FLANGE NUTS with the 7/16” wrench
STEP 5: Repeat steps (1) – (4) to adjust the height of the second SQUARE HOLE MOUNTING BRACKET. Make sure that SQUARE
HOLE MOUNTING BRACKETS are at the same height.
FIGURE 3-2. ADJUSTING THE INSIDE MOUNTING BRACKETS ON THE RMT351A
NOTE: Instructions for adjusting the inside mounting brackets are the same for all models.