Alpha Node User manual

Node Power Supply
Node Power Supply Enclosures
Installation Manual
Effective: April 2009
Alpha Technologies

Power
Alpha Technologies ®

3
031-295-B0-001 Rev.A
031-295-B0-001, Rev. A
Effective Date: April, 2009
Copyright© 2009
Alpha Technologies, Inc.
Node Power Supply Enclosures
Installation Manual
Contacting Alpha Technologies: www.alpha.com
OR
For general product information and customer service (7 AM to 5 PM, Pacific Time), call
1-800-863-3930
For complete technical support, call
1-800-863-3364
7 AM to 5 PM, Pacific Time or 24/7 emergency support
Review the written and illustrative information contained in this manual before proceeding. If there are
questions regarding the safe installation or operation of this product, please contact Alpha Technologies or
your nearest Alpha representative.
Photographs and drawings contained in this manual are only for illustrative purposes. These photographs and
drawings my not exactly match your installation.
Alpha denies responsibility for any damage or injury involving its enclosures, power supplies, generators,
batteries or other hardware, manufactured by Alpha or members of the Alpha Group, when used for an
unintended purpose, installed or operated in an unapproved manner, or improperly maintained.
NOTE:
NOTE:
NOTE:

4031-295-B0-001 Rev. A
Safety Information ................................................................................................................. 6
1.0 Introduction and Specifications................................................................................. 10
1.1 Node Power Supply Enclosures ....................................................................10
1.2 Node Power Supply Enclosures (NPS) Specifications ...................................11
1.3 Parts List........................................................................................................ 12
2.0 Installation................................................................................................................. 13
2.1 Pole-mounted version.................................................................................... 13
2.1.1 Dimensions and features ....................................................................13
2.1.2 Installation on wooden pole................................................................. 14
2.1.3 Installation on steel/concrete pole....................................................... 16
2.1.4 Populating the Cabinet and Turn-Up................................................... 18
2.2 Rack-mounted version................................................................................... 19
2.2.1 Dimensions and features ....................................................................19
2.2.2 Installation........................................................................................... 20
2.2.3 Populating the Cabinet and Turn-Up................................................... 20
2.3 Wall-Mounted version .................................................................................... 21
2.3.1 Dimensions and features ....................................................................21
2.3.2 Installation........................................................................................... 22
2.3.3 Populating the Cabinet and Turn-Up................................................... 22
2.4 Floor-Mounted version................................................................................... 23
2.4.1 Dimensions and features ....................................................................23
2.4.2 Installation........................................................................................... 24
2.4.3 Populating the Cabinet and Turn-Up................................................... 24
2.5 Connecting Utility Power................................................................................ 25
2.5.1 Service Power..................................................................................... 26
2.6 Connecting the Coaxial Cable .......................................................................28
2.6.1 Coaxial Cable Surge Protector Installation .........................................28
2.6.2 Connecting the Service Power Inserter (SPI) .....................................29
2.6.3 Connecting the Service Power Inserter-RF (SPI) ...............................30
2.7 Battery Installation ......................................................................................... 31
2.7.1 Installation Procedure ......................................................................... 32
2.7.2 Battery Wiring Diagram....................................................................... 33
2.7.3 Battery Terminal Connections............................................................. 34
2.8 Installing the XM Series 2 Power Supply.......................................................35
2.9 Cooling Fan Kit Installation............................................................................ 36
2.10 Cooling Fan Kit Removal............................................................................... 36
Table of Contents

5
031-295-B0-001 Rev.A
Figures & Tables
Fig. 1-1 NPS Enclosures.................................................................................................. 10
Fig. 2-1 Dimensions, Pole-mounted NPS Enclosure........................................................ 13
Fig. 2-2 Wooden Pole Installation.....................................................................................15
Fig. 2-3 Steel/Concrete Pole Installation..........................................................................17
Fig. 2-4 Dimensions, Rack-Mounted NPS Enclosure....................................................... 19
Fig. 2-5 Dimensions, Wall-mounted NPS Enclosure........................................................ 21
Fig. 2-6 Dimensions, Floor-mounted NPS Enclosure....................................................... 23
Fig. 2-7 120Vac Service Entrance Wiring......................................................................... 26
Fig. 2-8 Breaker Quad Option DSE-20............................................................................. 27
Fig. 2-9 520-R Receptacle Wiring ....................................................................................27
Fig. 2-10 Surge Protector Mounting Locations...................................................................28
Fig. 2-11 SPI (Standard version) Mounting Locations........................................................29
Fig. 2-12 SPI Cover Removal............................................................................................. 29
Fig. 2-13 Coaxial Cable Connection................................................................................... 29
Fig. 2-14 SPI Mounting Locations ......................................................................................30
Fig. 2-15 Battery Identification Label.................................................................................. 31
Fig. 2-16 Battery Wiring Diagram....................................................................................... 33
Fig. 2-17 NPS Battery Wiring Diagram with HPL115 FT battery string .............................. 33
Fig. 2-18 Hardware Stackup Threaded Battery Insert........................................................34
Fig. 2-19 Hardware Stackup Threaded Battery Insert with Optional Inline Fuse................34
Fig. 2-20 XM Series 2 Power Supply.................................................................................. 35
Fig. 2-21 Cooling Fan Installation Configuration ................................................................ 36
Table 1-1 Specifications.......................................................................................................11
Table 1-2 Parts List..............................................................................................................12
Table 2-1 Service Entrance Circuit Breaker Requirements.................................................25

6031-295-B0-001 Rev. A
Safety Notes
Review the drawings and illustrations contained in this manual before proceeding. If there are any questions
regarding the safe installation or operation of the system, contact Alpha Technologies or the nearest Alpha
representative. Save this document for future reference.
To reduce the risk of injury or death, and to ensure the continued safe operation of this product, the following
symbols have been placed throughout this manual. Where these symbols appear, use extra care and
attention.
The use of CAUTION indicates safety information intended to PREVENT DAMAGE to material or
equipment.
The use of ATTENTION indicates specific regulatory/code requirements that may affect the placement of
equipment and /or installation procedures.
A NOTE provides additional information to help complete a specific task or procedure.
ATTENTION
CAUTION!
NOTE:
WARNING presents safety information to PREVENT INJURY OR DEATH to the technician
or user.
WARNING!

7
031-295-B0-001 Rev.A
Battery Maintenance Guidelines
The battery maintenance instructions listed below are for reference only. Battery manufacturer’s instructions
for transportation, installation, storage or maintenance take precedence over these instructions.
• To prevent damage, inspect batteries every 3 months for:
Signs of battery cracking, leaking or swelling. The battery should be replaced immediately by
authorized personnel using a battery of the identical type and rating.
Signs of battery cable damage. Battery cable should be replaced immediately by Authorized Personnel
using replacement parts specified by vendor.
Loose battery connection hardware. Refer to battery manufacturer’s documentation for the correct
torque and connection hardware for the application.
• Apply battery manufacturer’s specified antioxidant compound on all exposed connections.
• Verify battery terminals and/or exposed connection hardware is not within 2 inches of a conductive
surface. Reposition batteries as necessary to maintain adequate clearance.
• Clean up any electrolyte (battery emission) in accordance with all federal, state, and local regulations or
codes.
• Proper venting of the enclosure is recommended. Follow the Battery Manufacturer’s approved
transportation and storage instructions.
• Always replace batteries with those of an identical type and rating. Never install old or untested batteries.
• Do not charge batteries in a sealed container. Each individual battery should have at least 0.5
inches of space between it and all surrounding surfaces to allow for convection cooling.
• All battery compartments must have adequate ventilation to prevent an accumulation of potentially
dangerous gas.
Recycling and Disposal Instructions
Spent or damaged batteries are considered environmentally unsafe. Always recycle used batteries or dispose
of the batteries in accordance with all federal, state and local regulations.
Electrical Safety
• Lethal voltages are present within the power supply and electrical boxes. Never assume that an electrical
connection or conductor is not energized. Check the circuit with a volt meter with respect to the grounded
portion of the enclosure (both AC and DC) prior to any installation or removal procedure.
• Always use the buddy system when working under hazardous conditions.
• A licensed electrician is required to install permanently wired equipment.
• Inputvoltages can range up to240 VAC. Ensure that utility power isdisabled before beginning installation
or removal.
• Ensure no liquids or wet clothes contact internal components.
• Hazardous electrically live parts inside this unit are energized from batteries even when the AC input
power is disconnected.
Mechanical Safety
• Keep hands and tools clear of fans. Fans are thermostatically controlled and will turn on automatically.
• Power supplies can reach extreme temperatures under load.
• Use caution around sheet metal components and sharp edges.

8031-295-B0-001 Rev. A
Battery Safety Notes
Chemical Hazards
Any gelled or liquid emissions from a valve-regulated lead-acid (VRLA) battery contain dilute sulfuric
acid, which is harmful to the skin and eyes. Emissions are electrolytic, and are electrically conductive and
corrosive.
To avoid injury:
• Servicing and connection of batteries shall be performed by, or under the direct supervision of, personnel
knowledgeable of batteries and the required safety precautions.
• Always wear eye protection, rubber gloves, and a protective vest when working near batteries. Remove
all metallic objects from hands and neck.
• Batteries produce explosive gases. Keep all open flames and sparks away from batteries.
• Use tools with insulated handles, do not rest any tools on top of batteries.
• Batteries contain or emit chemicals known to the State of California to cause cancer and birth defects
or other reproductive harm. Battery post terminals and related accessories contain lead and lead
compounds. Wash hands after handling (California Proposition 65).
• Wear protective clothing (insulated gloves, eye protection, etc.) whenever installing, maintaining,
servicing, or replacing batteries.
• If any battery emission contacts the skin, wash immediately and thoroughly with water. Follow your
company’s approved chemical exposure procedures.
• Neutralize any spilled battery emission with the special solution contained in an approved spill kit or with
a solution of one pound Bicarbonate of soda to one gallon of water. Report chemical spill using your
company’s spill reporting structure and seek medical attention if necessary.
• All battery compartments must have adequate ventilation to prevent an accumulation of potentially
dangerous gas.
• Prior to handling the batteries, touch a grounded metal object to dissipate any static charge that may have
developed on your body.
• Never use uninsulated tools or other conductive materials when installing, maintaining, servicing or
replacing batteries.
• Use special caution when connecting or adjusting battery cabling. An improperly connected battery cable
or an unconnected battery cable can make contact with an unintended surface that can result in arcing,
fire, or possible explosion.
Lead-acid batteries contain dangerous voltages, currents and corrosive material. Battery
installation, maintenance, service and replacement must be performed only by authorized
personnel.
WARNING!

9
031-295-B0-001 Rev.A
1.0 Introduction
Grounding Connection Notes
In order to provide a ready, reliable source of backup power it is necessary to connect the power supply to an
effective grounding and Earthing system that not only provides for the safety of the service personnel responsible for
its operation and maintenance, but also facilitates the proper operation and protection of the equipment within the
network. Such a grounding system provides protection with respect to operator safety, system communication, and
equipment protection.
Safety Ground
The safety ground is a two-part system, comprised of the utility service and the Alpha system.
1. First, utility service;
As a minimum requirement for the protection of Alpha equipment, the local utility service must provide a low-
impedance path for fault current return to Earth. This must meet or exceed the requirements of the US National
Electrical Code. The connection between theAlpha Power Supply and the utility must also meet or exceed the
requirements of the US National Electrical Code.
2. Second, the Alpha grounding system,
The Alpha grounding system consists of a low-impedance connection between the enclosure and an Earth Ground
(located at least 6’ away from the Utility Earth connection).
This impedance between the enclosure and Earth must be 25 Ohms or less at 60 Hertz.
Local soil conditions will determine the complexity of the grounding system required to meet the 25 Ohm (maximum)
resistance specified above.
For example, a single 8’ ground rod may be sufficient to meet the requirement. In some cases, a more elaborate
system may be required such as multiple ground rods connected by a #6AWG solid copper cable buried 8-12” below
the surface. Where this is not possible, contact a local grounding system expert for alternate methods that will meet
the 25 Ohm (maximum) specification.
All ground rod connections must be made by means of a listed grounding clamp suitable for direct burial or
exothermically welded.
Signal Ground
For proper operation, the Service Power Inserter (SPI) must be securely grounded to the enclosure chassis. This is of
particular importance in systems using an external status monitoring transponder. The transponder chassis is grounded
via a separate ground wire to the SPI case. For systems using an embedded transponder, the ground connection is
made either through a separate chassis ground block, or by means of the internal mounting hardware which grounds
the transponder through the XM2/XM2HP power supply. Please refer to the appropriate Communications product
manual for installation procedures.
Strike (Lightning) Ground
Lightning strikes, grid switching, or other aberrations on the power line and/or communications cable have the
potential to cause high-energy transients which can damage the powering or communitations systems. Without a low-
impedance path to ground, the current, when traveling through wires of varying impedance, produce damaging high
voltage. The most viable method available to protect the system from damage is to divert these unwanted high-energy
transients along a low-impedance path to ground. A low-impedance path to ground prevents these currents from
reaching high voltage levels and posing a threat to equipment. The single-point grounding system provides a low-
impedance path to ground, and the key to its success is the proper bonding of the ground rods, so the components of
the grounding system appear as a single point of uniform impedance. Alpha recommends the use of a surge arresting
device electrically bonded to the Alpha Ground System.
Low impedance grounding is mandatory for personnel safety and critical for the proper
operation of the cable system .
WARNING!
NOTE:

10 031-295-B0-001 Rev. A
1.0 Introduction
1.1 Node Power Supply (NPS) Enclosures
The NPS enclosures are equipped with AC service entrances, AC distribution and are supported with
a wide range of accessories, including Alpha’s XM Series 2 Model 906 power supply, AlphaCellTM
85GXL batteries and HPL-FT front terminal batteries providing extended standby runtime and life. An
optional Fan Kit is available for the NPS enclosure (see Section 2.9, Cooling Fan Kit Installation).
The NPS is specifically designed for indoor or outdoor installations requiring lower power, a smaller
footprint and embedded DOCSIS®or proprietary status monitoring capability. The NPS is available
in pole-, rack-, wall- or floor-mount configurations. The NPS is an ideal solution for back-up power
where traditional equipment is too large and bulky.
Fig. 1-1, Node Power Supply Enclosures, pole-mount, rack-mount, and wall-mount configurations

11
031-295-B0-001 Rev.A
1.0 Introduction
Specifications
Material: Exterior powder-coated aluminum
Vent Screen: Stainless mesh (required for outdoor applications; optional for indoor configurations) with .005" x .005" / .12mm x .12mm opening size to
minimize snow, water and dust ingress
Door and Lid Seal: Poron gasketing
Hardware: Stainless steel
Color: Gray (Custom colors available)
Tamper Switch: Optional
Battery Slide Tray: Optional
Safety Ground: Adjacent to AC outlets
(Optional stainless steel ground stud)
Lid: Removable
Door: Hinged removable
Pole: Galvanized steel brackets for wood, and concrete pole mount
and wall mount
Models NPS-R NPS-W1 NPS-W2 NPS-F NPS-P
Configurations
Installation Indoor Indoor Outdoor Indoor Outdoor
Description 19" and 23" Rack Mount Wall mount Wall mount Floor mount Pole Mount
Mechanical
Dimensions
H x W x D (in/mm)
24.85 x 17 x 14.1 /
631 x 432 x 358
24.85 x 17 x 14.1 /
631 x 432 x 358
24.85 x 17 x 14.1 /
631 x 432 x 358
24.85 x 17 x 14.1 /
631 x 432 x 358
24.85 x 17 x 14.1 /
631 x 432 x 358
Weight (lb/kg) 39 / 17.7 39 / 17.7 39 / 17.7 39 / 17.7 39 / 17.7
Estimated Load (Amps) 12345678
85 GXL, 60V Runtime (hr) 15.8 9.6 7.4 5.7 4.4 3.7 3.1 2.7
85 GXL, 90V Runtime (hr) 10.0 6.1 4.6 3.6 2.8 2.3 N/A N/A
115 HPL, 60V Runtime (hr) 20.0 12.6 9.7 7.6 5.9 5.0 4.2 3.7
115 HPL, 90V Runtime (hr) 12.7 8.1 6.1 4.8 3.7 3.1 N/A N/A
*Note: Battery temperature = 77˚F/25˚C
Load PF = 0.92
Accuracy = 0.25 hour
1.2 Node Power Supply (NPS) Specifications
Table 1-1, NPS Configurations, Specifications and Runtimes

12 031-295-B0-001 Rev. A
1.0 Introduction
1.3 Parts List
Enclosure Components
Description Part Number
Enclosure Assembly, NPS 031-295-20
Installation Components
Description Part Number
Pole Mount Kit, Wooden Pole 746-032-20
Pole Mount Brackets, Wooden poles 744-670-20
Pole Mount Kit, Steel/Concrete poles 746-032-20
Brackets, pole mount, concrete/steel poles 591-557-20
Kit, Wall installation 746-034-20
Kit, Rack mounting 746-033-20
Kit, Indoor cover 746-036-20
Kit, Battery Cable, 36Vdc 746-038-20
Optional Components
Description Part Number
LA-P+ 120V 020-098-24
LA-P-SM 021-077-20
Surge Protector, 75 Ohm FF w/ground 162-028-10
Line Cord (Indoor version only) 874-540-38
Kit, optional Inline Fuse 746-039-20
Sliding tray, Battery (85GXL Batteries only) 746-030-20
AlphaGuard CMT-3SC 36V 012-306-20
Table 1-2, Parts List

13
031-295-B0-001 Rev.A
2.0 Installation
Fig. 2-1, Dimensions, pole-mounted NPS Enclosure
16.25"
SPI
Upper mounting strap
Enclosure ground point
Lower mounting strap
Service entrance
4.0"
Knockouts for optional ACI, LRI indicator Lamps
Lockable door latch
Optional GEM lock
Hinged, removeable door
6
2
1
3
4
7
8
6
3
2
4
5
8
9
7
9
2.1 Pole-mounted version
2.1.1 Dimensions and features
24.85"
14.1"
17.00"
1
5

14 031-295-B0-001 Rev. A
2.0 Installation
2.1 Pole-mounted version, continued
2.1.2 Installation on Wooden Pole
Never transport the unit with batteries installed. Transporting the unit with installed batteries may
cause injury to installer and/or damage to enclosure and installed equipment. Install batteries after
transporting the unit to the installation site and securing it to the pole.
Alpha recommends positioning enclosure on the opposite side of the pole from oncoming traffic.
This can reduce the danger caused by falling equipment in the event that a pole is struck by an
automobile. Mounting bolts must go completely through the wooden pole. Secure the bolts from
the back with a large washer and nut.
The majority of poles are the property of the local Utility. Before installing an enclosure, the location and
method of mounting must be approved by the Utility. Most codes require the base of the enclosure to be
located a minimum height from the ground. Always verify height restrictions before proceeding.
Verify the following items are present before installation:
Pole mounting kit (Alpha p/n 746-032-20) qty. 1
Pole mounting brackets (Alpha p/n 744-670-20) qty 2
Materials: (Customer supplied)
• Two 5/8" diameter machine bolts, length to suit pole
• Two 5/8" diameter zinc-plated flat washers
• Two 5/8" diameter hex nuts (UNC thread)
Tools: (Customer supplied)
• Auger or drill for boring 3/4" diameter holes in the wooden pole
• Mallet or hammer
• Assorted sockets
Procedure:
1. Unpack the enclosure and galvanized brackets; turn the enclosure facedown on a soft surface.
2. Slide a bracket into the enclosure’s lower mounting strap. The bracket’s flanges must face away
from the enclosure. Secure the bracket to the mounting strap using a supplied 3/8" x 3/4" hex
bolt. This prepositions the lower mounting bracket, enabling the installer to accurately locate the
placement of the lower mounting hole.
3. Mark the position for the upper mounting bracket on the utility pole. Drill a 3/4" hole completely
through the pole. Secure the bracket to the pole with a 5/8" machine bolt, washer and nut. Do not
fully tighten the bolt at this time.
4. Position the enclosure on the upper mounting bracket. It may be necessary to slightly rock the
enclosure and pull downward to properly seat it on the bracket. Center the enclosure on the pole.
5. Mark the hole for the lower mounting bracket. Lift the enclosure off the top bracket and drill the
lower hole. Spacing between holes for enclosures is 16.25" on center.
6. Slide the enclosure back into place over the top bracket. Align the lower bracket with the hole and
secure it with a 5/8" machine bolt, washer and nut. Tighten both brackets until the flanges seat into
the wood.
7. The enclosure is now ready for the utility connection (per Section 2.5, Connecting Utility Power),
power module, batteries and nodes.
ATTENTION
CAUTION!
CAUTION!

Fig. 2-2, Wooden Pole Installation
Upper mounting bracket
Service entrance
Enclosure ground fitting
Lower Mounting bracket
#8 AWG (minimum) Copper Ground Wire to 8' Ground Rod
5/8" through bolt (2 places)
Nut and washer (2 places)
15
031-295-B0-001 Rev.A
2.0 Installation
2.1 Pole-mounted version, continued
2.1.2 Installation on Wooden Pole, continued
5
2
1
3
4
6
7
16.25"
2
1
6
7
6
74
3
5

16 031-295-B0-001 Rev. A
2.0 Installation
2.1 Pole-mounted version, continued
2.1.3 Installation on Steel/Concrete Pole
Never transport the unit with batteries installed. Transporting the unit with installed batteries may
cause injury to installer and/or damage to enclosure and installed equipment. Install batteries after
transporting the unit to the installation site and securing it to the pole.
Alpha recommends positioning enclosure on the opposite side of the pole from oncoming traffic.
This can reduce the danger caused by falling equipment in the event that a pole is struck by an
automobile.
The majority of poles are the property of the local Utility. Before installing an enclosure, the location and
method of mounting must be approved by the Utility.
Verify the following items are present before installation:
Pole mounting kit (Alpha p/n 746-032-20) qty. 1
Pole mounting brackets (Alpha p/n 591-557-20) qty. 2
Materials:
Two customer-supplied pole straps to fit pole.
Tools:
Assorted sockets
Procedure:
1. Unpack the enclosure and galvanized brackets; turn the enclosure facedown
on a soft surface.
2. Slide a bracket up through the enclosure’s lower mounting strap(s). The
bracket’s flanges must face away from the enclosure. Secure the lower
mounting bracket using the 3/8” x 3/4” hex bolt included.
3. Position the upper mounting bracket on the pole and secure using a pole strap.
4. Lift the enclosure onto the upper mounting bracket and pull downward to
properly seat it. Center the enclosure on the pole.
5. Secure the lower mounting bracket on the pole using a pole strap. Spacing
between mounting straps for enclosures is 16.25" on center.
6. The enclosure is now ready for the utility connection (per Section 2.5, Connecting Utility
Power), power module and batteries.
ATTENTION
CAUTION!
CAUTION!

17
031-295-B0-001 Rev.A
2.0 Installation
Fig. 2-3, Steel/Concrete Pole Installation
2.1 Pole-mounted version, coninued
2.1.3 Installation on Steel/Concrete Pole, continued
Upper Mounting Bracket
Service Entrance
Enclosure Grounding Point
5
2
1
3
4Lower Mounting Bracket
#8 AWG (minimum) Copper Ground Wire to 8' Ground Rod
Customer-supplied Mounting Strap (2 plcs)
6
24.85"
on center
2
1
6
6
4
3
5

18 031-295-B0-001 Rev. A
2.0 Installation
2.1 Pole-mounted version, continued
2.1.4 Populating the Cabinet and Turn-up
1. Make the necessary utility connections (per Section 2.5, Connecting Utility Power) to provide
power to the enclosure.
2. Install the power supply.
3. Load the batteries and connect per the wiring diagram label on the enclosure door. Tighten
hardware to battery manufacturer's specifications. Do NOT connect the battery string to the
power supply at this time.
4. Connect the SPI, tamper switch and communications module at this time. For complete
installation procedures, please see Section 2.8.
5. Apply utility power.
6. Connect battery string to XM Series 2 Power Supply.
7. Switch battery breaker on.
8. Wait for battery alarm to clear.
9. Unit is now ready to be placed into service.

19
031-295-B0-001 Rev.A
2.0 Installation
2.2 Rack-mounted version
2.2.1 Dimensions and features
24.85"
1.0" 1.0"
Fig. 2-4, Dimensions, Rack-mounted NPS Enclosure
14.1"
Mounting locations for SPI
Enclosure ground point
Knockouts for ACI, LRI Indicator lamps
Lockable door latch
Optional GEM lock
Hinged, removeable door
6
2
1
5
3
6
3
4
5
2
Mounting tabs set for 19" rack
Mounting tabs set for 23" rack
17.00"
19.00"
2.0" 2.0"
17.00"
23.00"
14.1"
1
1
1
1
4

20 031-295-B0-001 Rev. A
2.0 Installation
2.2 Rack-mounted version, continued
2.2.2 Installation Procedure
Tools required: 3/8" wrench and socket
Torque wrench (for 36 in-lbs spec.)
Verify the following are on hand:
Kit, Cover, Indoor (Alpha p/n 746-036-20)
Kit, Rack mounting (Alpha p/n 746-033-20)
Customer-supplied mounting hardware
Verify the equipment rack is securely bolted to the floor and in areas of seismic activity, the
mounting method should meet Zone-4 seismic standards or better.
Verify the batteries to be installed in the system are fully charged prior to installation.
The populated cabinet will weigh approximately 240 lbs [109kg]. Use a minimum of six
mounting bolts (3 per mounting tab) to securely hold the enclosure in place.
2.2.3 Populating the Cabinet and Turn-up
1. Make the necessary utility connections (per Section 2.5, Connecting Utility Power) to provide
power to the enclosure.
2. Install the power supply.
3. Load the batteries and connect per the wiring diagram label on the enclosure door. Tighten
hardware to battery manufacturer's specifications. Do NOT connect the battery string to the
power supply at this time.
4. Connect the SPI, tamper switch and communications module at this time. For complete
installation procedures, please see Section 2.8.
5. Install lid and door.
6. Apply utility power.
7. Connect battery string to XM Series 2 Power Supply.
8. Switch battery breaker on.
9. Wait for battery alarm to clear.
10. Unit is now ready to be placed into service.
1. Remove lid and door from enclosure. Set aside.
2. Orient the rack mounting tabs as shown below to fit the equipment rack and attach rack
mounting tabs to sides of enclosure (1/4-20 hardware) tighten to 36 in-lbs.
3. While one installer lifts and holds the empty enclosure in place, start the mounting
hardware (1/4-20 bolts, 6 places) in the corresponding holes in the rack. Tighten to
36 in-lbs.
Mounting tabs set for 19" rack
(as viewed from above)
Mounting tabs set for 23" rack
(as viewed from above)
Enclosure front Enclosure front
CAUTION!