Alpha FlexNet MPS48-7C Manuel utilisateur
Alpha Technologies
Technical Manual
MPS48-7C
Effective: August 2007
Power
Alpha Technologies
®
MPS48-7C
Technical Manual
021-511-B3-003, Rev. C
Effective Date: August 2007
Copyright© 2007
Alpha Technologies, Inc.
member of The Group
TM
Notice of FCC Compliance
Per FCC 47 CFR 15.21:
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the
equipment.
Per FCC 47 CFR 15.105:
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
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
3
Alpha shall not be held liable for any damage or injury involving its enclosures, power supplies, generators,
batteries, or other hardware if used or operated in any manner or subject to any condition not consistent with
its intended purpose, or is installed or operated in an unapproved manner, or improperly maintained.
Photographs contained in this manual are for illustrative purposes only. These photographs may not match
your installation.
NOTE:
Operator is cautioned to review the drawings and illustrations contained in this manual before proceeding. If
there are questions regarding the safe operation of this product, please contact Alpha Technologies or your
nearest Alpha representative.
NOTE:
NOTE:
4 021-511-B3-003, Rev. C
Table of Contents
Safety Notes.......................................................................................................................... 6
1.0 Introduction...............................................................................................................10
2.0 Theory of Operation...................................................................................................11
3.0 Specifications............................................................................................................ 12
4.0 Installation................................................................................................................. 14
4.1 Unpacking the MPS48-7C .............................................................................14
4.2 Enclosure Installation, Wall-mount or Wooden Pole-mount...........................14
4.3 Enclosure Installation, Steel or Concrete Pole...............................................16
4.4 AC Input (120/240Vac) Connection Procedure.............................................. 17
4.5 AC Connection with High Voltage Transformer.............................................. 18
4.5.1 Installing the High Voltage Transformer..............................................18
4.5.2 Installing the Streetlight AC Power Tap Cable..................................... 19
4.6 Aironet Cable Connection Procedure ............................................................20
4.7 Battery Connection Procedure.......................................................................21
4.8 Network Connections..................................................................................... 21
5.0 Operation..................................................................................................................22
5.1 Start-up.......................................................................................................... 22
5.2 Normal Operation........................................................................................... 22
5.3 Battery Backup Mode..................................................................................... 23
5.4 Charging Mode .............................................................................................. 23
6.0 Troubleshooting........................................................................................................ 24
6.1 Troubleshooting Table.................................................................................... 24
6.2 Connecting to the Local Craft Port.................................................................24
7.0 Maintenance............................................................................................................. 25
7.1 Battery Replacement ..................................................................................... 25
7.2 Replacing the Power Module.........................................................................25
7.3 Battery Management...................................................................................... 26
5021-511-B3-003, Rev. C
List of Figures and Tables
Fig. 1-1, MPS48-7C Overview............................................................................................. 10
Fig. 3-1, MPS48-7C Enclosure Dimensions........................................................................13
Fig. 4-1, AC Connections..................................................................................................... 17
Fig. 4-2, Input Voltage Select Switch................................................................................... 17
Fig. 4-3, Streetlight AC Power Tap Cable Stripped.............................................................. 19
Fig. 4-4, Streetlight AC Power Tap Cable Installed.............................................................. 19
Fig. 4-5, 3-hole Strain Relief Fitting.....................................................................................20
Fig. 4-6, Aironet Cable Installed ..........................................................................................20
Fig. 5-1, Status LEDs ..........................................................................................................22
Fig. 5-2, Battery Capacity Versus Temperature...................................................................23
Fig. 7-1, Battery Capacity Characteristics........................................................................... 26
Table 2-1, Network Connections...........................................................................................11
Table 5-1, Status LED Indications ....................................................................................... 22
Table 5-2, Battery Runtime and Recharge Times................................................................ 23
6 021-511-B3-003, Rev. C
Safety Notes
Review the drawings and illustrations in this manual before proceeding. If there are any questions
regarding the safe installation or operation of this product, contact Alpha Technologies or the nearestAlpha
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 ATTENTION indicates specific regulatory/code requirements that may affect the placement of
equipment and /or installation procedures.
ATTENTION:
A NOTE provide additional information to help complete a specific task or procedure.
NOTE:
The use of CAUTION indicates safety information intended to PREVENT DAMAGE to material or
equipment.
CAUTION!
WARNING presents safety information to PREVENT INJURY OR DEATH to the technician
or user.
WARNING!
7021-511-B3-003, Rev. C
General Safety Precautions
To avoid injury:
•This enclosure and its hardware must only be serviced by authorized personnel.
• The enclosure must remain locked at all times, except when authorized service personnel are present.
• Remove all conductive jewelry or personal equipment prior to servicing equipment, parts, connectors,
wiring, or batteries.
• Read and follow all installation, equipment grounding, usage, and service instructions included in this
manual.
• Use proper lifting techniques whenever handling enclosure, equipment, parts, or batteries.
• Batteries contain dangerous voltages, currents and corrosive material. Battery installation, maintenance,
service and replacement must only be performed by authorized personnel.
• 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 result in arcing, fire, or possible explosion.
• Avoid any contact with gelled or liquid emissions from valve-regulated lead-acid (VRLA) batteries.
Emissions contain dilute sulfuric acid that is harmful to the skin and eyes. Emissions are electrolytic, and
are electrically conductive and are corrosive. Follow the Chemical Hazards notes if contact occurs.
• Do not smoke or introduce sparks in the vicinity of a battery.
• Under certain overcharging conditions, lead-acid batteries can vent a mixture of hydrogen gas that is
explosive. Proper venting of the enclosure is required.
• Follow the battery manufacturer’s approved transportation and storage instructions.
To avoid damage:
• Prior to installation, verify the AC input voltage and frequency matches the rating of to the enclosure and
its equipment.
• Prior to installation, verify that the output voltage from the enclosure or its equipment match the voltage
requirements of the connected equipment (load).
• Prior to installation, verify that the enclosure’s utility service panel is equipped with a properly rated circuit
breaker for use with the equipment inside. Refer to manufacturer’s recommendations.
• Review and upgrade utility service panel circuit breaker requirements whenever equipment is changed.
• Prior to installation, contact local utilities, building maintenance departments, and cable/piping locator
services to ensure that installation does not interfere with existing utility cables or piping.
• Do not exceed the output rating of equipment. Verify load requirements prior and during connection
process.
• Prior to handling the batteries, touch a grounded metal object to dissipate any static charge that may have
developed in your body.
8 021-511-B3-003, Rev. C
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 can 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 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.
• A battery showing signs of cracking, leaking, or swelling should be replaced immediately by authorized
personnel using a battery of identical type and rating.
Lead-acid batteries contain dangerous voltages, currents, and corrosive material. Battery
installation, maintenance, service, and replacement must be performed only by authorized
personnel.
Battery Safety Notes
WARNING!
9021-511-B3-003, Rev. C
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.
• Inspect batteries every 6 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.
• Apply battery manufacturer’s specified antioxidant compound on all exposed connections.
• Clean up any electrolyte (battery emission) in accordance with all federal, state, and local regulations or
codes.
• Always replace batteries with those of an identical type and rating. Never install old or untested batteries.
• 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 voltmeter 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.
• Input voltages can range up to 347Vac. Ensure that utility power is disabled 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
• Power supplies can reach extreme temperatures under load.
• Use caution around sheet metal components and sharp edges.
10 021-511-B3-003, Rev. C
1.0 Introduction
Alpha’s FlexNet MPS48-7C multipurpose power supply provides primary and standby power to the
Cisco Aironet 1500 Series Outdoor Mesh Access Point in wall-mount and pole-mount applications.
The MPS48-7C interface module includes connections for the Aironet 1500, Ethernet backhaul, Local
Craft Port, and 48Vdc auxiliary connection.
The MPS48-7C is supported by a full complement of options including batteries, 120Vac or 240Vac
battery heater mat, 5-foot, 15-foot, and 25-foot long preconnectorized communications and power
cables, 120Vac line cord, and a step-down transformer for high voltage street light applications.
Key Features:
• Rugged 48Vdc indoor or outdoor UPS
• Multi-use mounting bracket for wall-mount and pole-mount applications
• Temperature compensated battery charging for optimum battery life
• Local and remote status monitoring and reporting
• Battery heater provides extended runtimes in cold conditions
• Preconnectorized cables minimize installation time and eliminate errors
Fig. 1-1, MPS48-7C Overview
AC Input
(1/2" EMT Knockout)
Network Connections
(3/4" EMT Knockout)
Status LEDs
Power Module
Battery Shelf
Internal Ground Stud 1/2" EMT Knockout
(optional use)
Power Interface
Module
Input Power
Voltage Select
Input Power
Terminal Block
Battery Retaining
Bracket
AC Input Connector
Battery Cable
Battery Temperature
Sensor
Battery Heater Mat
Connector
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