CommScope CMC-21 User manual

Installation Instruction Guide for
CMC-21, CMC-28, CMC-35
Compact Modular Cabinets (CMC)
Material ID 860647713
Rev B, V.05,
February 2022
© 2022 CommScope, Inc., Confidential and Proprietary,
For Customer Use Only, All Rights Reserved
Page 1
38 Pages
Customer Service Information
■Technical support
Call: 1-800-255-1479 (Option3 / Wireless Products) – Web: www.commscope.com/wisupport.
Safety Agency Statements and Safety Precautions
Safety Agency Statements:
■Only qualified personnel are to install and maintain the cabinet.
■Install cabinet within a restricted access location where access is by use of a tool, lock and key or
other means of security; and controlled by the authority responsible for the location.
■The cabinet is only suitable for mounting on a concrete or other noncombustible surface.
■Maximum ambient temperature (Tma) of 46º C (115º F) permitted by manufacturer specification.
■All conduit hubs must be of Type 3R or equivalent to maintain the cabinet as Rainproof.
■It is essential to connect the cabinet to earth ground before connecting supply, high leakage current.
■All cabinet equipment cabling is to meet applicable NEC1and network communications standards.
Safety Precautions:
Note: In areas that utilize joint buried plant, and per company practice, test and verify that voltage is not
present on the cable shield. If voltage is present on the shield, stop work and notify supervision.
■Follow all product warnings and instructions as specified in this document, cabinet and equipment
labels inside the cabinet to reduce risk of fire, electric shock, and injury.
■Install all equipment and supplied hardware as specified in this document.
— Install only approved devices in the cabinet and do not drill, saw, or cut inside the cabinet.
— Never install cable, connectors, jacks in a wet location unless designed for wet locations.
— Never install electrical equipment during a thunderstorm, there is risk of electric shock.
— Never touch uninsulated live power wires or terminals, always disconnect from power first.
— It is mandatory to use insulated tools using power and hand tools.
■Do not transport or lift cabinet with the batteries installed, or store batteries inside cabinet.
■All personnel must wear standard safety headgear, eye protection, and insulated gloves (if required).
■At all times, keep bystanders away from all work operations.
Warning:
Do not drill or punch any holes in the cabinet. Use only the provided
knockouts in the cabinet for cable ingress and cable egress.
Drilling or punching holes in any other location will immediately void
the warranty. No exemptions.
1Registered trademark of the National Fire Protection Association.

CommScope Instruction Guide
860647713, Rev B, V.05
Page 2
38 Pages
Contents
Section 1. Overview and Specifications..................................................................................... 3
► Reference Documents and Manuals ....................................................................................... 3
► Cabinet Weights (approximate) ............................................................................................... 3
► CMC-21, 28, and 35 Configuration Format and Definition ...................................................... 4
► CMC-21, 28, and 35 Cabinet Rack Unit (RU) Configurations ................................................. 5
► Field Replacement Units (FRU) and Aftermarket Kits (AMK) ................................................. 5
► Cabinet Views.......................................................................................................................... 6
► Door Clearances...................................................................................................................... 9
► Rear Panel Removal and Installation .................................................................................... 10
► Door Intrusion Alarm Switch .................................................................................................. 10
Section 2. CMC Cabinet Concrete Pad Installation................................................................. 11
► Step 1. Remove Packaging, Prepare Cabinet for Installation............................................. 11
► Step 2. Remove Pad Gasket from Cabinet and Prepare Pad ............................................ 12
► Step 3. Place Cabinet onto Concrete Pad or Steel Structure ............................................. 14
► Step 4. Fasten Cabinet to Concrete Pad or Steel Structure ............................................... 15
► Step 5. Route and Connect Cables .................................................................................... 17
► Step 6. Connect Cabinet to Main Earth Ground ................................................................. 19
► Step 7. Connect Cabinet Outgoing Office Alarms............................................................... 19
► Step 8. Connect Cabinet to Main Power Source, Turn-up.................................................. 19
Section 3. Pole and Wall / H-Frame Mounting ......................................................................... 20
► Pole Mount Kit 760242250 .................................................................................................... 20
► Wall / H-Frame Mounting Kit 760242247 .............................................................................. 24
► Install Cabinet onto Upper and Lower Mounting Brackets .................................................... 27
Section 4. Cabinet Battery Installation ..................................................................................... 29
► Battery Safety Recommendations ......................................................................................... 29
► Required Tools ...................................................................................................................... 30
► Recommended Battery Dimensions and Battery Tray Configurations.................................. 30
► Battery Voltage and Battery Supply Resistance.................................................................... 31
► Battery Installation ................................................................................................................. 32
► Step 1 – Cabinet Preparation Prior to Installation, VRLA............................................. 32
► Step 2 – VRLA Battery Installation ............................................................................... 32
► Battery Interconnect Kit 860651309, Installation – CMC-28/35 ............................................ 34

Material ID 860647713
Rev B, V.05, February 2022
Page 3
38 Pages
Section 1. Overview and Specifications
This guide provides instruction on how to install a CMC-21, CMC-28, or CMC 35 cabinet onto a concrete
pad or steel structure, pole or wall / H-frame mounting, and battery installation.
Common Features
■All cabinets have same mounting footprint – Figure 20
■Door with padlock, open/close turn-latches - Figure 1
■LED light and door intrusion switches - Figure 3
■With thermosiphon or air conditioner - Figure 6 and Figure 7
■Ground bar (8-pos) - Figure 3
■Convenience outlet, GFCI (20 A) - Figure 3
■Optional 7RU or 8RU compartment divider and door baffle - Figure 3
■Large format allows only 23-inch rack mounting
■Main earth ground lugs, bottom rear - Figure 2
■Rear access panel with open/close turn-latches and padlocks and environmental vents - Figure 2
■Side wall, rear, and floor knockouts for cable ingress/egress - Figure 2
► Reference Documents and Manuals
Make sure to have these documents provided with the cabinet in hand at time of installation and refer to
them as needed.
■Installation Guide – This document
■Equipment Manuals – Vendor manuals pertaining to equipment installed in the cabinet, such as a
power system.
► Cabinet Weights (approximate)
CMC-21
■Empty Max Weight (no batteries, with or without equipment): 167-271 lbs. (76-123 Kgs)
■Weight with Pallet (no batteries): 193-297 lbs. (88-135 Kgs)
■Cabinet Weight with Batteries (after installation): See Table C, page 5
CMC-28
■Empty Max Weight (no batteries, with or without equipment): 203-363 lbs. (92-165 Kgs)
■Weight with Pallet (no batteries): 229-389 lbs. (104-176 Kgs)
■Cabinet Weight with Batteries (after installation): See Table C, page 5
CMC-35
■Empty Max Weight (no batteries, with or without equipment): 275-435 lbs. (125-197 Kgs)
■Weight with Pallet (no batteries): 301-461 lbs. (137-209 Kgs)
■Cabinet Weight with Batteries (after installation): See Table C, page 5

CommScope Instruction Guide
860647713, Rev B, V.05
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38 Pages
► CMC-21, 28, and 35 Configuration Format and Definition
Configuration Format and Example
■Format: SxxBx-Tx-AxxDxx-xx (18 characters max)
■Example: 21B1-T1-A02D01-01 per Table A
CMC-21 with 1 battery string – T1 Thermosiphon, A02 AC System, D01 Power System - Variant-01
Table A: Format with Size and Configuration, Cooling, AC and DC Power
Definitions Descriptions
Platform Size: xx = xx represents size of 21, 28, 35 RU (Equipment Mounting Rack Unit)
Configurations: Bx = Battery String(s)
Example: B0 = No Battery String – All Electronic
Example: B1 = Hybrid configuration with equipment & 1 string of battery
Cooling: Tx = Thermosiphon
T1 = 1400W (150W/K)
T2 = 3500W (400W/K)
T3 = 800W (100W/K)
Dx = DC Power Air Conditioner
D1 = 2K BTU (~600 W)
D2 = 4K BTU (~1200 W)
D3 = 6K BTU (~2000 W)
D4 = 8K BTU (~2500 W)
D5 = 10K BTU (~3000 W)
D6 = 12K BTU (~3500 W)
D7 = 19K BTU (~5500 W)
AC System
(Load Center,
SPD)
Axx = xx represents AC assembly configurations (up to 99)
A00 = No AC Power Panel Assembly
A01 = 125A 12 Pos External AC Load Center, 100A Main Breaker, SPD
A02 = 200A 20 Pos External AC Load Center, SPD
DC Power
System
Dxx = xx represents various DC shelf configurations (1 for ABB, 2 for EV, and so on…up to 99)
D00 = No DC Power System
D01 = 460158782, ABB Infinity (150045762), 600A, NE-S 4824-23-AC5H-PS8-DC1E, 6RU
D02 = 460143035 ABB 2RU Infinity Flex, 19" Three Slot Rectifier chassis plus 1RU distribution
D03 = 460152515 ABB 3RU Infinity Flex, 19" Three Slot Rectifier Chassis plus 2 RU distribution
D04 = 460159701 ABB P/N CC109148144, Slimline SPS 2 slot rectifier shelf
D05 = 460159365, Delta Rectifier Plant, 600A, -48V, 7RU
D06 = 460169347, ABB Infinity S, 300A, 19", NE-S 48-19-ACH5, PS6, DC1E, 6RU, with LVBD
D07 = 460142334, ABB Infinity S, 300A, 19", NE-S 48-19-ACH5, PS6, DC1E, 6RU, no LVBD
D08 = 460160236, ABB Infinity (150045738), 600A, NES-48-23-AC5H-PS8-DC1E, 6 RU, with LVBD
D09 = Eltek 6RU chassis
D10 = Master Bus Bar System for battery applications.
-XX XX = number of possible layouts with identical "Base Structure" content
Note: Customer is to provide breaker/fuse protection for door cooling unit furnished with an empty
cabinet (no equipment) per UL rating shown in Table B.
Table B. Breaker/Fuse UL Ratings for Empty Cabinets with Cooling Units per Table A
Unit
Type
Breaker/Fuse UL Rating
Manufacturer
T1
Thermosiphon
@ 3-amps, -48 VDC, Nominal
BlackShields

Material ID 860647713
Rev B, V.05, February 2022
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► CMC-21, 28, and 35 Cabinet Rack Unit (RU) Configurations
Table Bshows RU space allocated to a cabinet based on number of battery strings with remaining RU
space dedicated to cabinet equipment.
Note 1: The bottom two battery shelves for CMC-21 and CMC-28 cabinets are adjustable from 7 or 8RU,
and for a CMC-35 the bottom three battery shelves are adjustable from 7 or 8RU.
Note 2: All batteries must be of the same type and from same manufacturer. Do not mix battery types
from different manufacturers. Pole or wall / H-frame mounting a cabinet with batteries is limited to
two battery strings; CMC-21/28 cabinets only – CMC-35 is not suitable for pole or wall / H-frame.
Table C: Rack Unit Configurations per Number of Cabinet Battery Strings
Cabinet
No. of
Battery
Strings
Cabinet Weight After Battery
Installation, with or without
Equipment (see Note)
Max No. of Battery
String RUs
Max No. of
Equipment RUs
(see Note)
Cooling
Type per
Table A
CMC-21
0
167-271 lbs. (76-123 Kgs)
0RU
21RU
T1, T3,
D2, D3
1
631-735 lbs. (286-333 Kgs)
7 or 8RU
14 or 13RU
2
1095-1147 lbs. (497-520 Kgs)
14 or 16RU
7 or 5RU
3
1559 lbs. (707 Kgs)
21RU
0RU
CMC-28
0
203-363 lbs. (92-165 Kgs)
0RU
28RU
T1, T2,
D3, D5
1
667-827 lbs. (301-375 Kgs)
7 or 8RU
21 or 20RU
2
1131-1231 lbs. (513-558 Kgs)
14 or 16RU
14 or 12RU
3
1595-1695 lbs. (724-769 Kgs-)
21 or 24RU
7 or 4RU
4
2059 lbs. (934 Kgs)
28RU
0RU
CMC-35
0
275-435 lbs. (125-197 Kgs)
0RU
35RU
T1, T2,
D3, D5
1
739-899 lbs. (335-408 Kgs)
7 or 8RU
28 or 27RU
2
1203-1363 lbs. (546-618 Kgs)
14 or 16RU
21 or 19RU
4
2131 lbs. (966 Kgs)
28 or 32RU
7RU or 3RU
Note: Based on an average VRLA battery weight of 116 lbs. at 464 lbs. for one string of batteries plus
weight of cabinet with or without equipment before battery installation. Amount of available total
RUs will vary in relation to equipment installed in the cabinet.
► Field Replacement Units (FRU) and Aftermarket Kits (AMK)
Table D: FRU and AMK List
Item
Material ID
Description
1
760242232
FRU, CMC-21 Equipment Back Panel
2
760242233
FRU, CMC-28 Equipment Back Panel
3
760242234
FRU, CMC-35 Equipment Back Panel
4
760242240
FRU, Solar Shield, CMC
5
760242242
FRU, Inner Loop Fan, CMC HX Thermosiphon, T1
6
760242243
FRU, Outer Loop Fan, CMC HX Thermosiphon, T1
7
760242247
AMK, H-frame / Wall Mount Kit, CMC
8
760242250
AMK, Pole Mount Kit, CMC
9
760242554
AMK, Plinth, 6" High, CMC

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860647713, Rev B, V.05
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► Cabinet Views
Figure 1. Front Views – CMC-21 Example
Figure 2. Left, Rear, and Right Views – CMC-21 Example

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Figure 3: Compartment Views – CMC-21 Example
Figure 4. Right Side Views with Optional 100 or 200-Amp AC Load Center, CMC-21 Example
Figure 5. Equipment Cabinet with Solar Shield On or Off – CMC-21 Example

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► Door View Examples with Thermosiphon and Air Conditioner Units
Note: See Table A for CMC cooling configurations and cooling unit manual provided with the cabinet for
power, alarm, and network connections; operation, settings, and maintenance.
Door with Thermosiphon (T1-T3)
A thermosiphon (Figure 6) lowers the inside cabinet temperature by means of a refrigerant liquid that
absorbs heat from the interior heat exchanger of the unit and converts it to a gas. This exchange allows
the gas to move into the exterior heat exchanger where it is converted back into a liquid that delivers heat
out to exterior air.
■All units have a DC power input and alarm output terminal block and RJ45 ports.
Door with Air Conditioner: DC Power (D1-D7)
A CMC cabinet may utilize a DC unit per cabinet configuration and operating requirements defined by
customer, Table A.
■All units have power input and alarm terminal blocks, I/O and RJ45 ports, and an interface display.
Figure 6. CMC-28 Door Examples with Thermosiphon Units T1 and T2 per Table A
Figure 7. CMC-28 Door Examples with DC A\C Units D3 and D5 per Table A

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► Door Clearances
Note: Figure 8 shows AC load center on cabinet right side to clarify door clearances. Optional AC load
center can be mounted per customer request on either side. However, AC load center should not
be installed on the left side for wall / H-frame mounting.
Figure 8. Top View, Door at 90º and 110º for CMC-21, 28 and 35 Cabinets

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► Rear Panel Removal and Installation
Prior to panel removal or installation, use door key (Figure 11) that ships with cabinet to open or close
1/4-turn latches when removing or installing a panel, Figure 9.
Note: Rear panel has ground cable attached on the inside of the panel.
Removal and Installation (Figure 9)
■Removal
— Turn panel latches to open position and pull out top of panel first; then tilt panel out and pull up on
panel to remove the panel from the opening.
— To remove the panel from the cabinet, disconnect ground cable from the green connector shown
in Figure 9. Prior to replacing the panel, make sure to reconnect ground cable to green connector.
■Installation
— Tilt panel bottom in and insert bottom into cabinet; press into panel and close latches.
Figure 9. Rear Access Panel Removal and Installation, Ground Cable Disconnect
► Door Intrusion Alarm Switch
The light and door intrusion switches are on the top left corner of the doorframe inside the cabinet.
Connect the door alarm as required to an alarm center, Figure 10.
Figure 10. Light and Door Intrusion Switches

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Section 2. CMC Cabinet Concrete Pad Installation
► Step 1. Remove Packaging, Prepare Cabinet for Installation
Caution:
Observe the following to prevent damage to the cabinet.
■Do not accept the cabinet from the shipper if the packaging appears damaged.
■Only remove the packaging and pallet at the installation site.
■Properly strap cabinet to a truck or trailer to prevent shifting, and always transport and store
cabinet in an upright position.
■If using a dolly, make sure a side of the cabinet without a removable panel faces the dolly. Do
not tilt the cabinet more than 30º from vertical when moving the cabinet.
■Use a forklift or the cabinet lifting brackets to raise and move the cabinet. Make sure the forklift
tines are at least four feet long and check for correct installation of the cabinet lifting brackets
beforehand.
■Do not remove the cabinet from pallet and open the door, cabinet tip-over may occur causing
injury to field personnel.
To prepare cabinet for installation:
1. Remove all shipping material and the door key from the cabinet.
Note: The cabinet contains desiccant bags inside to reduce moisture. Until service turn-up, keep
bags inside cabinet. Activate a low power heat source (a 60 W light) for humidity control if
you do not place cabinet in service after installation.
2. Open door with door key, remove the installation kit, and close the door, Figure 3.
Note: Retain the pad gasket set between pallet and cabinet (required installation), Figure 14.
Table E: CMC-21 Cabinet Installation Kit (860463686)
Item
Qty
Description
1
1
Door Key
2
6
Shim
3
6
Screw, Hex HD 1/2-13 X 1.50 SS
4
6
Washer, Lock, 1/2", SS
5
6
Rubber Washer
6
6
Washer, Flat 1/2, A-153
7
1
Plastic Bag
Figure 11. Cabinet Installation Kit 860463686

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► Step 2. Remove Pad Gasket from Cabinet and Prepare Pad
Caution:
■Do not install batteries in cabinet prior to cabinet installation on pad (structure).
■Install cabinet on a pad six inches above the grade to prevent water intrusion and install all
cable connections, including ground cable, above the pad (structure); Figure 18, Figure 19.
To remove pad gasket:
1. Open the door and rear panel to locate and remove pallet bolts (six places) from front and rear
corners on cabinet floor or base of plinth; Figure 12, Figure 14, Figure 15.
■Pad gasket is between the cabinet floor or base of plinth on pallet. Use pad gasket as a template
to drill anchor holes into the concrete; Figure 12, Figure 14, Figure 18.
Note: Plinth is an optional order for CMC cabinets and factory installed.
2. Remove solar shield to reveal the four eye bolts on the cabinet top, Figure 13.
■Unscrew the M6-12 cap screws, lift solar shield and slide it back to release from cabinet.
3. Close door and lift cabinet with appropriate lifting device to remove gasket, reset cabinet onto pallet.
Note: If routing cable through pad (structure), remove floor knockouts (punch outside to inside)
before installing cabinet; Figure 14, Figure 15, Figure 24.
Figure 12. Pad Gasket Removal from Pallet, Cabinet without and with Plinth
Figure 13. Solar Shield Removal

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Figure 14. Gasket (Template) Required Between Cabinet without Plinth and Pad or Structure
Figure 15. Gasket (Template) Required Between Cabinet with Plinth and Pad or Structure
To prepare the pad:
1. Place gasket (template) onto pad in location where cabinet will be installed and mark front and rear
anchor locations per Figure 14 for cabinet without plinth and Figure 15 for cabinet with plinth, then
remove the gasket.
2. Do the following, Figure 16:
a. Drill six holes using the correct diameter drill bit to fit anchors in place, and to correct depth.
b. Remove drilling debris with a blowout bulb or compressed air, then clean pad of dirt and debris for
proper cabinet leveling.

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Figure 16. Drill Anchor Holes and Remove Debris
3. Place and align the gasket into position over the anchors.
■Cabinet without plinth, Figure 14 and Figure 18; cabinet with plinth Figure 15 and Figure 19.
► Step 3. Place Cabinet onto Concrete Pad or Steel Structure
Caution:
■Verify all anchor holes are in correct position before putting cabinet onto concrete pad; or if on a
steel structure, verify proper position and alignment per structure footprint.
■Use an appropriate lifting device to place cabinet onto pad or structure.
■Do not install batteries in cabinet or lift cabinet with batteries prior to cabinet pad installation.
To lift and position cabinet onto a concrete pad or steel structure:
1. Remove cabinet rear panel and use all four eyebolts to lift the cabinet, Figure 17
2. Attach four slings of sufficient length for safe operation to boom line with a B connecting link or clevis
and fasten other ends of slings to each eyebolt with a B connecting link or clevis, Figure 17.
Figure 17. Attach Slings to the Boom Line and Cabinet Eyebolts
3. With cabinet suspended, open the door and align floor holes to pad anchors, setting cabinet onto
gasket; Figure 18 without plinth, Figure 19 with plinth.
Note: If routing cable through pad (structure), remove floor knockouts before placing cabinet onto
gasket; Figure 14, Figure 15, Figure 24.
Figure 18. Example of Cabinet Installation without a Plinth on a Concrete Pad

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Figure 19. Example of Cabinet Installation with Optional 6-Inch Plinth on a Concrete Pad
4. Level the cabinet. If needed, insert the shims provided with the installation kit. Use caution to avoid
injury when placing the shims below the cabinet.
5. Reinstall the solar shield.
► Step 4. Fasten Cabinet to Concrete Pad or Steel Structure
1. Fasten cabinet to a concrete pad or structure from cabinet pad mount holes per Figure 14 and
Figure 20. CommScope requires use of six mounting holes. For some pad applications, install a steel
structure onto the pad and fasten cabinet to structure (recommended).
■For pad installations, customer provides anchors or inserts to fit the 1/2"-13 x 1.5" bolts provided
with the installation kit, Table E.
■For structures, customer provides adequate hardware to fasten cabinet to the structure.
■For cabinet with plinth, see Figure 15, Figure 19, and Figure 21 to mount cabinet to pad.
Figure 20. Mounting Footprint for CMC-21/28/35 Cabinets without a Plinth, Top View

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Figure 21. Plinth Mounting Footprint, Bottom and Top Views, CMC-21/28/35
2. Obtain bolts and washers from installation kit.
■Concrete Pad—Thread bolts with washers into anchors or inserts, 1.5" bolts with 1/2" lock and
flat washers, along with the rubber washers, Figure 22. Do not tighten bolts until all are in place.
■Steel Structure—Fasten cabinet to steel structure with customer provided 1/2" x 2.5" bolts, nuts,
flat and lock washers, Figure 23.
Figure 22. Fastening Cabinet to Concrete Pad
Figure 23. Fastening Cabinet onto Steel Structure

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► Step 5. Route and Connect Cables
Important:
■A licensed electrician is to install all cabinet electrical connections conforming to NEC, state,
and local codes. Properly ground all site equipment before making any electrical connections.
■If routing cable through pad (structure), remove floor knockouts (punch outside to inside) before
placing cabinet onto pad; Figure 14, Figure 15, Figure 24.
Bring in cable through knockouts on left and right walls and cabinet base, Figure 24 to Figure 27.
■Use door key to open and remove rear panel for cable access, Figure 9.
■Use knockouts on cabinet topside only for stacking two cabinets (CMC-21 only), Figure 17.
Figure 24. Cabinet Base Knockout Locations, CMC-21, 28, 35
Figure 25. Cabinet Knockout Locations, CMC-21

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Figure 26. Cabinet Knockout Locations, CMC-28
Figure 27. Cabinet Knockout Locations, CMC-35

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► Step 6. Connect Cabinet to Main Earth Ground
Connect cabinet to earth ground with at least one ground lug at bottom rear of cabinet, Figure 28.
■Use a 2 AWG ground wire (customer provided) to site ground ring per local requirements.
■Ground external ancillary equipment to the 8-position ground bar located in the cabinet. The ground
bar uses 1/4"-20 studs spread at .625" (15.875 mm) C-C, Figure 3.
Figure 28. Main Earth Grounding
► Step 7. Connect Cabinet Outgoing Office Alarms
Make sure to look at the cabinet SD for outgoing equipment and cabinet alarms to the alarm terminal
block(s). The customer is responsible for outgoing alarms to a central office.
► Step 8. Connect Cabinet to Main Power Source, Turn-up
Depending on cabinet configuration, the customer shall provide 230 VAC and 120 VAC feeds to power
and run the following cabinet systems and equipment.
■Power distribution and rectification system
■Cabinet equipment connected to power system
— DC light, fuse panels, overvoltage protection units, fiber panels, and remote monitoring units
■Cooling systems
— Thermosiphon and air conditioner
■AC electrical outlet (GFCI)
Important:
■A licensed electrician is to install all electrical connections conforming to NEC, state and local
codes. Properly ground all site equipment before any electrical connections.
■AC feeds from an appropriate disconnect device to the cabinet must have surge protection and
dedicated breakers. The cabinet requires 230 VAC and 120 VAC single-phase power feeds.
■For all cabinet power connections and feeds, refer to the cabinet schematic drawing (SD) and
equipment instruction manuals supplied with the cabinet.
Warning:
■Maintain and adhere to all local and state AC utility wiring and safety precautions. Failure to follow
instruction can cause bodily harm, death, and equipment damage.
■Properly ground the cabinet to site earth ground for reliable earth ground of rack mounted
equipment. Do not make any electrical connections prior to this.
■The power requirements must not exceed the marked ratings on the GFCI outlet.
■Disconnect all power prior to servicing.

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Section 3. Pole and Wall / H-Frame Mounting
This section covers installation of aftermarket kits (AMK) per customer order used to mount CMC-21/28
cabinets to a pole or wall / H-frame. CMC-35 cabinets are not suitable for pole or wall / H-frame mounting.
Note: Pole mount kits allow installation only for CMC-21/28 cabinets onto a pole from rear and left sides
of cabinet. Pole or wall / H-frame mounting a cabinet with batteries is limited to two battery
strings.
■AMK 760242250 – mounts cabinet onto a pole, Table F, Figure 29.
■AMK 760242247 – mounts cabinet onto an H-frame fastened to poles or walls, Table G, Figure 34.
► Pole Mount Kit 760242250
Use kit 760242250 to pole mount CMC-21 and CMC-28 cabinets, Figure 29 (not for use with CMC-35).
Note: If pole diameter is larger than 8.5", do not use the 18" rods from the kit (Table F); and use
threaded rods that are longer (customer provides) to fasten the brackets to the pole.
760242250 Kit Weights
■Without hardware – 61.2 lbs., With hardware – 69.2 lbs.
Table F. AMK 760242250 Parts List
Item
Part No.
Description
Qty
1
100526-37
Nut, Hex, Din 934, M10, SST, Pass
4
2
860560721
Upper Mounting Bracket
1
3
860568336
Bracket, Pole Mount
4
4
860647385
Lower Mounting Bracket
1
5
860647392
Wall Support Bracket, CMC
1
6
901284554
M10 Lock Washer, SS
6
7
901347443
M10 Flat Washer, SS
10
8
960068336
M10 Hex Head Screw, 1.5 x 25 mm, SS
6
9
GB-04145
Kit, 1/2"x 1.5" Bolt, Nut, Lock Washer (galvanized)
6
10
GN-04
Nut, Hex, 1/2" (Galvanized)
18
11
GWF-04
Flat Washer, 1/2" (Galvanized)
24
12
GWL-04
Lock Washer, 1/2" (Galvanized)
18
13
MT-380X18
Threaded Rod, 1/2" x 18" (Galvanized)
6
Note: Mount item 5 (wall support bracket) to cabinet per Figure 30 before mounting cabinet onto upper
and lower mounting brackets, items 2 and 4.