User's Guide
MobileLAN™power
Intermec Technologies Corporation
6001 36 Avenue West
Everett, WA 98203
U.S.A.
U.S. service and technical support: 1-800-755-5505
U.S. media supplies ordering information: 1-800-227-9947
Canadian service and technical support: 1-800-668-7043
Canadian media supplies ordering information: 1-800-268-6936
Outside U.S.A. and Canada: Contact your local Intermec service
supplier.
The information contained herein is proprietary and is provided
solely for the purpose of allowing customers to operate and/or
service Intermec manufactured equipment and is not to be released,
reproduced, or used for any other purpose without written
permission of Intermec.
Information and specifications in this manual are subject to change
without notice.
©2003 by Intermec Technologies Corporation
All Rights Reserved
The word Intermec, the Intermec logo, INCA (under license),
MobileLAN, JANUS, IRL, Trakker Antares, EZBuilder, TE 2000,
Data Collection Browser, dcBrowser, Data Collection PC,
Universal Access Point, UAP, Duratherm, EasyCoder, Precision
Print, PrintSet, Virtual Wedge, and CrossBar are either trademarks
or registered trademarks of Intermec.
Throughout this manual, trademarked names may be used. Rather
than put a trademark (™ or ®) symbol in every occurrence of a
trademark name, we state that we are using the names only in an
editorial fashion, and to the benefit of the trademark owner, with
no intention of infringement.
There are U.S. and foreign patents pending
ii MobileLAN power User’s Guide
Manual Change Record
This page records the changes to this document. The manual was
originally released as version 001.
Version Date Description of Change
002 03/03 Updated information to remove references to the Power
Not Active LED. Made other small changes.
MobileLAN power User’s Guide iii
iv MobileLAN power User’s Guide
Contents
Before You Begin.................................................................... vii
Introduction........................................................................... 1
1
About the Power Bridge............................................................ 2
Power Bridge—Front View Detail............................................ 3
Power Bridge—Rear View Detail.............................................. 4
Power Bridge Status LEDs........................................................ 5
Powering Ethernet Devices ....................................................... 6
Contents
Warranty Information.............................................. vii
Safety Summary ....................................................... vii
Warnings, Cautions, and Notes............................... viii
About this Guide....................................................... ix
Installing the Power Bridge.......................................7
2
Verifying Kit Contents .............................................................8
Recording Identification Information ....................................... 8
Choosing a Suitable Site ........................................................... 8
Mounting the Power Bridge......................................................9
Free-Stand Mounting................................................. 9
Wall Hanging............................................................. 9
Cabling the Power Bridge....................................................... 10
Connecting Cables to the Power Bridge....................11
Connecting Cables to End Devices........................... 11
v MobileLAN power User’s Guide
Contents
A
B
Safety Information ......................................................... 15
Important Safety Information................................................. 16
Power Cord Set...................................................................... 18
Specifications and Troubleshooting................ 19
Technical Specifications ......................................................... 20
Physical Specifications.............................................. 20
Environmental Specifications................................... 20
Electrical Specifications............................................ 20
Ethernet Interface .................................................... 20
Troubleshooting..................................................................... 21
vi MobileLAN power User’s Guide
Before You Begin
Before You Begin
This section introduces you to standard warranty provisions, safety
precautions, and about this guide.
Warranty Information
To receive a copy of the standard warranty provision for this
product, contact your local Intermec sales organization. In the
U.S., call 1-800-755-5505, in Canada, call 1-800-668-7043.
Note: Opening this product may void the warranty. The
internal workings of this product can only be accessed by
Intermec service personnel. Radio replacements and
upgrades require Intermec service personnel.
Safety Summary
Your safety is extremely important. Read and follow all warnings
and cautions in this book before handling and operating Intermec
equipment. You can be seriously injured, and equipment and data
can be damaged if you do not follow the safety warnings and
cautions.
Do not repair or adjust alone
Do not repair or adjust energized equipment alone under any
circumstances. Someone capable of providing first aid must always
be present for your safety.
First aid
Always obtain first aid or medical attention immediately after an
injury. Never neglect an injury, no matter how slight it seems.
Resuscitation
Begin resuscitation immediately if someone is injured and stops
breathing. Any delay could result in death. To work on or near
high voltage, you should be familiar with approved industrial first
aid methods.
MobileLAN power User’s Guide vii
Before You Begin
Energized Equipment
Never work on energized equipment unless authorized by a
responsible authority. Energized electrical equipment is dangerous.
Electrical shock from energized equipment can cause death. If you
must perform authorized emergency work on energized equipment,
be sure that you comply strictly with approved safety regulations.
Warnings, Cautions, and Notes
A warning contains directions that must be followed
for personal and product safety. Follow all
directions carefully.
Avertissement: Les avertissements comprennent des
instructions qui doivent être respectées pour assurer
la sécurité des personnes et de l’équipement.
Respectez scrupuleusement toutes les instructions.
A caution alerts you to an operating procedure,
practice, condition, or statement that must be
strictly observed to prevent equipment damage or
destruction, or corruption or loss of data.
Attention: Une précaution vous avertit d’une
procédure de fonctionnement, d’une méthode, d’un
état ou d’un rapport qui doit être strictement
respecté pour empêcher l’endommagement ou la
destruction de l’équipement, ou l’altération ou la
perte de données.
Note: Notes either provide extra information about a
topic or contain special instructions for handling a
particular condition or set of circumstances.
viii MobileLAN power User’s Guide
Before You Begin
About this Guide
This document provides information and procedures regarding
installation, configuration, and management of the
MobileLAN™power bridge.
Prerequisite Skills and Knowledge
This guide is intended for use by network administrators who are
responsible for installing network equipment; consequently, it
assumes a basic working knowledge of LANs (Local Area
Networks).
To use this document effectively, you should have a working
knowledge of Ethernet infrastructures. In addition, you should
have a working knowledge of
• basic electronics and mechanical assembly, as well as an
understanding of related local building codes.
• local operating and troubleshooting procedures.
MobileLAN power User’s Guide
ix
Before You Begin
x MobileLAN power User’s Guide
Introduction
1
This chapter introduces the MobileLAN™power
bridge and explains how it can be used in your
network. This chapter covers these topics:
• About the Power Bridge
• Power Bridge—front view detail
• Power Bridge status indications
• Power Bridge—rear view detail
• Powering Ethernet devices
MobileLAN power User’s Guide 1
Chapter 1 — Introduction
About the Power Bridge
The Power Bridge is a single Ethernet channel power-feeding
device. It is designed for use with a 10BaseT/100BaseTx standard
Ethernet network over a standard TIA/EIA-568 Category 5 (or
higher) cabling plant. The DC operating power for the data
terminal units is fed through the unused pairs (7/8 and 4/5).
The Power Bridge normally powers devices that are Power over
Ethernet Enabled; that is, they are equipped to receive power over
Ethernet. Devices that are not equipped to receive power over
Ethernet can be powered by the Power Bridge, but they require an
external splitter.
The Power Bridge has the following features:
• Remote power feeding of Ethernet terminals
• A single 10BaseT/100BaseTx data + power combined channel
• Universal 90 to 264 VAC, 50 to 60 Hz power input
• Port overload and short-circuit protection
• Port status LEDs
• 15.4W minimum allowable output power
• Free-standing or wall-hanging mounting
The Power Bridge also eliminates the need for terminal’s AC
outlets, UPS, and AC/DC adapters.
2 MobileLAN power User’s Guide
Chapter 1 — Introduction
Power Bridge—Front View Detail
MLP001.eps
10BaseT/100BaseTx Power & Data Out Port, Left Connector
The Power Bridge has a single Power & Data port configured as
MDI (non-crossover). This port is designed to carry Ethernet data
over the standard 2-wire pairs (RJ-45 pins 1/2 and 3/6) and DC
power source over the spare wire pair (RJ-45 pins 4/5 and 7/8).
The maximum segment length from the switch/hub to the
Network Interface Card (NIC), including the Power Bridge, is
100m (328 ft), per the IEEE 802.3 standard.
10BaseT/100BaseTx Data In Port, Right Connector
The Power Bridge has a single 10BaseT/100BaseTx data input port
configured as Media Dependant Interface (MDI) (non-crossover).
This port is designed to carry Ethernet data only (Tx/Rx) over the
standard 2-wire pairs (RJ-45 pins 1/2 and 3/6).
Power Active LED
The Power Active LED (green) indicates the terminal unit has been
identified as Power Enabled and is active and receiving power. For
more information, see “Power Bridge Status LEDs” on page 5.
Main LED
The Main LED (green) provides the Power Bridge’s AC power
status. For more information, see “Power Bridge Status LEDs” on
page 5.
MobileLAN power User’s Guide 3
Chapter 1 — Introduction
Power Bridge—Rear View Detail
Vac
Hz A
100-240 60/50 0.34-0.17
Caution: Shock Potential
Disconnect the Power
Before Servicing.
MLP002.eps
AC Power Receptacle
Electrocution Hazard. Before connecting power to
the Power Bridge, please refer to the safety
information in Appendix A.
Avertissement: Risque d’électrocution. Avant de
connecter l’alimentation au Pont d’alimentation,
veuillez consulter les informations relatives à la
sécurité à l’annexe A.
The Power Bridge automatically adjusts its power setting to any
supply voltage from 90 to 240 VAC.
See Appendix A for proper selection of a power cord.
Supply Data Label
The Supply Data label contains information regarding the total AC
power input (100 to 240 VAC), power frequency (60/50 Hz), and
the corresponding amperes.
See Appendix A for proper selection of a power cord.
Information Label
The Information label (located on the bottom of the Power Bridge)
shows the following:
• Part number of the Power Bridge
• Serial number of the Power Bridge and date code
• Electrical and safety compliance
You may need this information for reporting purposes.
4 MobileLAN power User’s Guide
Chapter 1 — Introduction
Power Bridge Status LEDs
These tables contain Power Bridge status information as presented
by the front panel LEDs during normal operation.
Power Active LED Table
Power Active
LED Status
Off Non-active load or unplugged
On Active load is plugged in and
Blinking Overload conditions or shorted
Port Load Conditions
port
complies with normal load
conditions
terminal port or forced
external voltage feed (constant
DC) into the port
Port Voltage
No DC voltage is present
over the wires
Continuous nominal DC
voltage is present on the
spare pairs
Power to the port is
disconnected
No DC voltage is present
on the spare pairs
Main LED Table
Main LED
Status
Off Main internal power supply
On Main power supply unit is
Blinking and
Power Active
LED off
Main Power Status
unit is unplugged or faulty
plugged in and under normal
operating conditions
Main power supply unit
voltage exceeds specified limits
Remarks
AC input is not active
Main voltage is 44V to
57V
Main voltage is under 46V
or above 57V; port’s power
is disabled
For more information on using the LEDs to troubleshoot, see
Appendix B, “Specifications and Troubleshooting.”
MobileLAN power User’s Guide 5
Chapter 1 — Introduction
Powering Ethernet Devices
The Power Bridge can be used to power access points or other end
devices such as IP phones, web cameras, laptop computers, and
others. That is, the Power Bridge can be used to power any
Ethernet device with power requirements that are within the
specified powering capabilities.
This illustration shows examples of network configurations.
6 MobileLAN power User’s Guide
Installing the Power
2
This chapter contains information needed to
install the Power Bridge. This chapter covers these
topics:
• Verifying kit contents
• Recording identification information
• Choosing a suitable site
• Mounting the Power Bridge
• Powering up the Power Bridge
• Cabling the Power Bridge
Bridge
MobileLAN power User’s Guide 7
Chapter 2 — Installing the Power Bridge
Verifying Kit Contents
Unpack the kit and verify that these items are present:
• Power Bridge
• Rubber feet
• User’s guide (this manual)
Recording Identification Information
Before proceeding with the Power Bridge placement and
installation, record the serial number here for future reference. The
serial number is located on the Information label on the bottom of
the Power Bridge.
Serial Number
Choosing a Suitable Site
Read the safety information provided in Appendix A
before carrying out any installation, removal, or any
maintenance procedure on the Power Bridge.
Avertissement: Vous devez lire toutes les
informations concernant la sécurité à l’annexe A
avant d’entreprendre l’installation, le retrait ou toute
procédure d’entretien du Pont d’alimentation.
The Power Bridge is suited for use in an office environment where
it can stand alone (free stand) or hang from a wall.
When deciding where to position the Power Bridge, be sure that
• the Power Bridge is accessible and cables can be connected
easily.
• the ambient room temperature is less than 40°C (104°F);
however, the recommended room temperature is 25°C (77°F) or
less.
8 MobileLAN power User’s Guide
Chapter 2 — Installing the Power Bridge
• airflow is not restricted around the Power Bridge or through the
vents in the side of the Power Bridge. We recommend that you
provide a minimum of 25 mm (1 in) clearance around the two
sides and the back of the Power Bridge, excluding mounting
surfaces.
• water or moisture cannot enter the case of the Power Bridge.
In addition, be sure that cabling is away from
• sources of electrical noise such as radios, transmitters, and
broadband amplifiers.
• power lines and fluorescent lighting fixtures.
Mounting the Power Bridge
Disconnect all cables from the Power Bridge before
continuing.
Attention: Déconnectez tous les câbles du Pont
d’alimentation avant de continuer.
There are two ways that you can mount the Power Bridge:
• Free-stand mounting
• Wall hanging
Free-Stand Mounting
• Place the self-adhesive rubber feet provided in the kit on the
underside of the Power Bridge. Be sure to place the rubber feet
on their markings.
Wall Hanging
1 Drill two 6 mm (.24 in) holes.
2 Insert a screw (not included) in each hole, leaving 0.5 cm (.2 in)
of the screws protruding out of the wall.
3 Hang the Power Bridge on the screws.
MobileLAN power User’s Guide 9
Chapter 2 — Installing the Power Bridge
Cabling the Power Bridge
This section describes how to get the Power Bridge powered on,
connected to the network, and connected to the end device. Once
you get it connected, it is ready for operation.
The Power Bridge has no ON/OFF switch. To
connect or disconnect power to the Power Bridge,
simply insert or remove the power cable from the AC
power receptacle on the rear of the Power Bridge.
Attention: Le Pont d’alimentation n’est pas muni
d’un interrupteur Marche/Arrêt. Pour connecter ou
déconnecter l’alimentation du Pont d’alimentation,
veuillez tout simplement brancher ou retirer le câble
d’alimentation de la prise de courant alternatif située
à l’arrière du Pont d’alimentation.
To power on the Power Bridge
1 Insert a power cord into the power receptacle on the rear of the
Power Bridge.
2 Insert the other end of the power cord into the wall AC power
outlet. The Power Bridge powers up and runs through its Power
On Self Test (POST), which takes less than 10 seconds. During
the POST, the port is disabled and the LEDs light up in the
following sequence:
a The Main LED lights up.
b The Active LED light up.
c The Main LED and Active LED turn off.
d The Main LED lights up and remains lit.
e The Active LED is ready for normal indications. For more
information, see the “Power Active LED Table” on page 5.
10 MobileLAN power User’s Guide
Chapter 2 — Installing the Power Bridge
Connecting Cables to the Power Bridge
The ports on the front of the Power Bridge are configured as data
route through ports for all data wires (pins 1, 2, 3, and 6).
Be sure to use a standard Category 5 (or higher) straight-through
cable including all 8 wires (four pairs) as shown in the next
illustration.
Data In Ports
Using a standard Category 5 (or higher) straight-through cable,
connect the cable leading from the Ethernet Switch/Bridge to the
Data In port.
Power & Data Out Ports
Using a standard Category 5 (or higher) straight-through cable,
connect the cable leading to the remote device to the Power &
Data Out port.
Ethernet
Switch/Hub
1
2
3
4
5
RJ-45
6
7
8
RJ-45 IN RJ-45 OUT
data
1
data
2
data
data
3
4
5
Data In
6
7
8
spare
spare
spare
spare
Power over LAN Hub
Splitter
data
1
2
3
DC +
4
DC +
5
data
6
7
Data & Power Out
8
data
data
DC DC -
1
2
3
4
5
6
7
8
*
RJ-45
Connecting Cables to End Devices
The Power Bridge contains proprietary line sensing capabilities that
enable it to send power only to end devices that know how to
receive power. These end devices, termed Power Enabled, receive
power once they are connected to the Power Bridge.
MobileLAN power User’s Guide 11
Chapter 2 — Installing the Power Bridge
The Power Bridge detects devices that are not enabled, and the
Power Bridge will not send power to those devices. Data continue
to flow via the Category 5 (or higher) cabling regardless of the
status of the end device.
End devices that have not been enabled to receive power directly
may receive power and data through an external splitter. The
external splitter separates the power and data prior to connection to
the end device. See the next illustration.
RJ-45
Female Socket
Connection to
Power Bridge
Active Splitter
Connecting end devices to the power bridge. Since the 2102 is not Power over
Ethernet Enabled, it must be connected to a splitter before it can be connected to
the Power Bridge.
RJ-45
Male Connector
Data
5VDC Power
Wireless LAN
Access Point
DC Power
Connector
Before connecting end devices to the Power Bridge, determine if
the end device is Power over Ethernet Enabled or not.
Note: If the end device is not Power over Ethernet
Enabled, the end device may be safely connected;
however, the port supplies no power, and it functions as a
normal Ethernet data port.
In addition, be sure that
• the end device either requires an external splitter or requires only
a single RJ-45 connection. If an external splitter is needed, be
sure to use a splitter with the correct connector and polarity.
• the end device’s power requirements are consistent with the
Power Bridge voltage and power ratings. See Appendix B for
voltage and power ratings.
12 MobileLAN power User’s Guide
Chapter 2 — Installing the Power Bridge
To connect end devices to the Power Bridge
1 Connect a Category 5 (or higher) cable to the end device directly
(if the device is Power over Ethernet Enabled) or by using an
external splitter.
2 Connect the opposite end of the same cable to the RJ-45 wall
outlet. Monitor the port LEDs. If the Power Active LED lights,
the Power Bridge has identified your end device as Power over
Ethernet Enabled, and the port is sending power. Refer to
Appendix B, if needed.
MobileLAN power User’s Guide 13
Chapter 2 — Installing the Power Bridge
14 MobileLAN power User’s Guide
Safety Information
A
This chapter explains safety information.
MobileLAN power User’s Guide 15
Appendix A — Safety Information
Important Safety Information
Installation and removal of the Power Bridge must be carried out
by qualified personnel only.
You must read the following safety information before installing,
removing, or maintaining the Power Bridge.
Read the installation instructions in Chapter 2
before connecting the Power Bridge to its power
source.
Avertissement : Veuillez lire les instructions
d’installation au chapitre 2 avant d connecter le
Pont d’alimentation à sa source d’alimentation.
Follow basic electricity safety measures whenever
you connect the Power Bridge to its power source.
Avertissement : Respectez les mesures de sécurité de
base en matière d’électricité lorsque vous connectez
le Pont d’alimentation à sa source d’alimentation.
This product relies on the building installation for
short-circuit (overcurrent) protection. Ensure that a
fuse or circuit breaker no larger than 120 VAC, 15A
U.S. (240 VAC, 10A international) is used on the
phase conductor.
Avertissement : Ce produit suppose qu’une
protection contre les courts-circuits (surcharges) est
assurée par le bâtiment. Assurez-vous qu’un fusible
ou un disjoncteur ne dépassant pas 120 VCa, 15A
aux É.-U. (240 VCa, 10A au niveau international)
est utilisé sur le conducteur de phase.
Do not work on the system or connect or disconnect
cables during periods of lightning activity.
Avertissement : N'utilisez pas le système ou ne
connectez ou ne déconnectez pas les câbles en cas
d'éclairs à l'extérieur.
16 MobileLAN power User’s Guide
Appendix A — Safety Information
A voltage mismatch can cause equipment damage
and may pose a fire hazard. If the voltage indicated
on the label is different from the power outlet
voltage, do not connect the Power Bridge to this
power outlet.
Avertissement : La non concordance de la tension
peut endommager l’équipement et entraîner des
risques d’incendie. Si la tension indiquée sur
l’étiquette ne correspond pas à la tension de la prise
d’alimentation, ne branchez pas le Pont
d’alimentation sur cette prise de courant.
For equipment that is free standing, be sure that the
surface is stable and strong enough to support the
equipment.
Avertissement : Pour tout équipement autonome,
assurez-vous que la surface est stable et
suffisamment solide pour soutenir l’équipement.
Ultimate disposal of this product should be handled
according to all national laws and regulations.
Avertissement : L’élimination de ce produit doit
respecter les lois et les règlements du pays en
question.
The Power Bridge Data In and Power & Data Out
ports are shielded RJ-45 data sockets. They cannot
be used as Plain Old Telephone Service (POTS)
telephone sockets. Only RJ-45 data connectors may
be connected to these sockets.
Avertissement : Les ports d’entrée de données du
Pont d’alimentation et de sortie de l’alimentation
sont munis de prises de données blindées RJ-45. Ces
prises ne peuvent pas être traitées comme de simples
prises de téléphone ordinaires. Utilisez seulement
des connecteurs de données RJ-45 avec ces prises.
MobileLAN power User’s Guide 17
Appendix A — Safety Information
Power Cord Set
The power cord must be approved for the country in which it is
used.
Country Requirements
U.S.A. and
Canada
Denmark The supply plug must comply with section 107-2-D1,
Switzerland The supply plug must comply with SEV/ASE 1011.
• The appliance coupler (the connector to the unit and not the
wall plug) must have a configuration for mating with an
EN60320/IEC320 appliance inlet.
• The socket outlet must be near to the unit and easily accessible.
You can only remove power from the unit by disconnecting the
power cord from the outlet.
The cord set must be UL-approved and CSA certified.
The minimum specification for the flexible cord is: No. 18
AWG Type SV or SJ 3-conductor
The cord set must have a rated current capacity of at least
10A.
standard DK2-1a, or DK2-5a.
• This unit operates under SELV (Safety Extra Low Voltage)
conditions according to IEC 950. The conditions are only
maintained if the equipment to which it is connected also
operates under SELV conditions.
• Switzerland only:
The supply plug must comply with SEV/ASE 1011.
• U.K. only:
The Power Bridge is covered by Oftel General Approval,
NS/G/12345/J/100003, for indirect connection to a public
telecommunications system. This connection can only be
achieved using the console port on the unit and an approved
modem.
18 MobileLAN power User’s Guide
Specifications and
B
This appendix lists Power Bridge specifications
and troubleshooting.
Troubleshooting
MobileLAN power User’s Guide 19
Appendix B — Specifications and Troubleshooting
Technical Specifications
The next tables list the hardware specifications of the Power Bridge.
This section also gives Ethernet interface information.
Physical Specifications
Dimensions Height: 38.5 mm (1.5 in)
Width: 106 mm (4.2 in)
Length: 140 mm (5.5 in)
Weight 0.27 kg (0.55 lb)
Environmental Specifications
Operating 0 to 40°C
(32 to 104°F)
Storage -20 to 70°C
(-4 to 158°F)
Humidity 10 to 90%
(no condensation allowed)
Electrical Specifications
Input Voltage 90 to 264 VAC (47 to 63 Hz)
Input Current at 110 VAC
Input Current at 220 VAC
Total Power Consumption, Continuous,
port at full load
Output Power, per port 15.4 Watts
Nominal Output Voltage, per port 48 VDC (±4V)
0.34 Amperes maximum
0.17 Amperes maximum
22.4 Watts maximum
Ethernet Interface
Input (Data In): 24 ports; Ethernet
10BaseT/100BaseTx
Output (Data & Power Out): 24 ports;
Ethernet 10BaseT/100BaseTx, and 48 VDC
20 MobileLAN power User’s Guide
RJ-45 female socket
RJ-45 female socket with DC
voltage on pins 7/8 and 4/5
Appendix B — Specifications and Troubleshooting
Troubleshooting
This section provides a symptoms and resolutions to help you
troubleshoot minor operating problems. If the provided resolutions
do not solve your problem, call your local Intermec representative
for further assistance.
If you encounter problems
• be sure that power is applied to the Power Bridge.
• be sure that a “crossover” type Ethernet cable is not used.
• be sure that the input Ethernet cable is connected to the Data In
port.
• be sure that the output Ethernet cable is connected to the Power
& Data Out port.
Symptom Resolution
Power Bridge is
plugged in to the
main AC inlet but
does not power up.
Power Bridge
operates, but the
Main LED is off.
The Power Active
LED is lit but the end
device does not
operate.
The port is powering
an end device
without turning the
Active LED on.
Verify that the AC power cord is correct and
functioning and that it has a solid ground connection.
Verify that the AC inlet is supplying power (test with a
different device) and that the voltage is between 100 to
264 VAC (50 to 60 Hz).
Reconnect the Power Bridge to the AC inlet and verify
the LED power up sequence.
You may have an internal power supply fault.
The Power Bridge has successfully identified the end
device as Power over Ethernet Enabled and is providing
power. Try to connect a different end device to the
port—if the new device operates, you probably have an
internal fault in the previous end device.
If possible, reconnect the end device to a different
bridge—if the LED lights, the previous bridge’s port is
faulty.
MobileLAN power User’s Guide 21
Appendix B — Specifications and Troubleshooting
Troubleshooting (continued)
Symptom Resolution
The Power Active
LED is not lit and
the end device does
not operate.
The port is not providing power because the Power
Bridge did not detect a connected end device.
Verify that you are using a standard UTP Category 5
(or higher) cable, including all eight wires (four pairs).
If you are using an external splitter, replace it with a
new splitter. If the end device works, discard the faulty
splitter.
Verify that you are not using a crossover twisted pair
wire.
Verify that the end device is connected to the Data &
Power Out port (left RJ-45 connector).
Try to bypass the long twisted pair cable and bring the
end device close to the Power Bridge. Connect it to the
port using a short cable—if it works, you probably have
a faulty connection or short on the long cable, or a bad
RJ-45 connection along the line.
If possible, try to connect the end device to a different
Power Bridge—if it works, the Power Bridge is probably
faulty. Try to power it up again and verify a correct
power up LED sequence.
Wait for 5 to 10 seconds. If the Power Active LED
lights, there was a charged capacitor in the end device,
which was discharged after being plugged in. The end
device can then be detected and activated.
22 MobileLAN power User’s Guide
Appendix B — Specifications and Troubleshooting
Troubleshooting (continued)
Symptom Resolution
The end device
operates, but there is
no data link.
Verify that the Active LED on the Power Bridge front
panel is lit continuously.
If you are using an external splitter, replace it with a
new splitter. If the end device works, discard the faulty
splitter.
Verify that you are using a standard UTP Category 5
(or higher) cable, including all eight wires (four pairs).
Also, be sure that the cable between the switch and the
end device is longer than
100 m (109 yards).
Verify that you are not using any crossover twisted pair
wires.
Verify that the Power Bridge is connected to a
switch/hub with a good RJ-45 patch cord connection.
Try to bypass the long twisted pair cable and bring the
end device close to the Power Bridge. Connect it to the
port using a short cable—if it works, you probably
have a faulty connection or short on the long cable, or
a bad RJ-45 connection along the line.
Try to connect a different end device to the port—if it
works and the link is established, you probably have a
faulty data link in the end device.
If possible, try to re-connect the end device to a
different Bridge. Remember to move the Data In port
of the switch/hub accordingly—if it works, a Power &
Data Out or Data In port in the Power Bridge is
probably faulty, or you have a bad RJ-45 connection.
MobileLAN power User’s Guide 23
6001 36th Avenue West
Everett, WA 98203
U.S.A.
www.intermec.com
© 2003 Intermec Technologies Corp.
All Rights Reserved
MobileLAN™power User’s Guide
*072006-002*
*072006-002*
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