Enterasys BL-89451ENT User manual

Mid-Span Power Unit
1-Port User’s Guide
Title9033974
9033974-01


i
Notice
Enterasys Networks reserves the right to make changes in specifications and other information contained in this
document and its web site without prior notice. The reader should in all cases consult Enterasys Networks to
determine whether any such changes have been made.
The hardware, firmware, or software described in this document is subject to change without notice.
IN NO EVENT SHALL ENTERASYS NETWORKS BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR
CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS) ARISING
OUT OF OR RELATED TO THIS DOCUMENT, WEB SITE, OR THE INFORMATION CONTAINED IN THEM, EVEN
IF ENTERASYS NETWORKS HAS BEEN ADVISED OF, KNEW OF, OR SHOULD HAVE KNOWN OF, THE
POSSIBILITY OF SUCH DAMAGES.
Enterasys Networks, Inc.
50 Minuteman Road
Andover, MA 01810
2004 Enterasys Networks, Inc. All rights reserved.
Part Number: 9033974 April 2004
ENTERASYS NETWORKS, and any logos associated therewith, are trademarks or registered trademarks of
Enterasys Networks, Inc., in the United States and other countries.
All other product names mentioned in this manual may be trademarks or registered trademarks of their respective
companies.
Documentation URL: http://www.enterasys.com/support/manuals
Regulatory Compliance Information
Federal Communications Commission (FCC) Notice
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
NOTE: 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 uses, generates, and can radiate radio
frequency energy and if not installed in accordance with the operator’s manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause interference in which case
the user will be required to correct the interference at his own expense.
WARNING: Changes or modifications made to this device which are not expressly approved by the party
responsible for compliance could void the user’s authority to operate the equipment.
Electrical Hazard: Only qualified personnel should perform installation procedures.

ii
Industry Canada Notice
This digital apparatus does not exceed the class A limits for radio noise emissions from digital apparatus set out in the
Radio Interference Regulations of the Canadian Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des
Communications du Canada.
Class A ITE Notice
WARNING: This is a Class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
Product Safety
This product complies with the following: UL 60950, CSA C22.2 No. 60950, 73/23/EEC, EN 60950, and IEC 60950.
Electromagnetic Compatibility (EMC)
This product complies with the following: 47 CFR Parts 2 and 15, CSA C108.8, 89/336/EEC, EN 55022, EN 61000-3-2,
EN 61000-3-3, EN 55024, AS/NZS CISPR 22, and VCCI V-3.
VCCI Notice
This is a class A product based on the standard of the Voluntary Control Council for Interference by Information
Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise.
When such trouble occurs, the user may be required to take corrective actions.
BSMI EMC Statement — Taiwan
This is a class A product. In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.

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Declaration of Conformity
Application of Council Directive(s): 89/336/EEC
73/23/EEC
Manufacturer’s Name: Enterasys Networks, Inc.
Manufacturer’s Address: 50 Minuteman Road
Andover, MA 01810
USA
European Representative Address: Enterasys Networks, Ltd.
Nexus House, Newbury Business Park
London Road, Newbury
Berkshire RG14 2PZ, England
Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC
EN 55022
EN 55024
EC Directive 73/23/EEC
EN 60950
Equipment Type/Environment: Networking Equipment, for use in a Commercial
or Light Industrial Environment.
Enterasys Networks, Inc. declares that the equipment packaged with this notice conforms to the above directives.
NOTE: Enterasys Networks reserves the right to change specifications without notice. Please contact your
representative to confirm current specifications.
ONE-YEAR LIMITED WARRANTY
Enterasys Networks warrants to the original consumer or purchaser that each of its products, and all components
thereof, will be free from defects in material and/or workmanship for a period of one year from the original factory
shipment date. Any warranty hereunder is extended to the original consumer or purchaser and is not assignable.
Enterasys Networks makes no express or implied warranties including, but not limited to, any implied warranty
of merchantability or fitness for a particular purpose, except as expressly set forth in this warranty. In no event
shall Enterasys Networks be liable for incidental or consequential damages, costs, or expenses arising out of or in
connection with the performance of the product delivered hereunder. Enterasys Networks will in no case cover
damages arising out of the product being used in a negligent fashion or manner.

iv
Enterasys Networks, Inc.
Firmware License Agreement
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v
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vi
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shall return to Enterasys the Program and all copies of the Program.

vii
Contents
About This Guide
Purpose ................................................................................................................................................ ix
Who Should Use This Guide ................................................................................................................ ix
Document Conventions ........................................................................................................................ ix
Getting Help .......................................................................................................................................... x
Chapter 1: Introduction
Functions and Features .....................................................................................................................1-1
Port Indicators ....................................................................................................................................1-1
Chapter 2: Installation and Connection
Verifying the Kit ..................................................................................................................................2-1
Kit Contents .......................................................................................................................................2-1
Technical Considerations ...................................................................................................................2-2
Using a Splitter with the 1-Port Mid-Span Power Unit ........................................................................2-2
Powering Up ......................................................................................................................................2-3
Chapter 3: Troubleshooting
Appendix A: Hardware Specifications
Regulatory Compliance Standards ................................................................................................... A-1
Product Standards ............................................................................................................................ A-1
1-Port Model BL-89751ENT, BL-89451ENT, BL-89551ENT, or BL-89651ENT ............................... A-1
Physical/Mechanical Specifications .................................................................................................. A-2
Port Indicator LED States ................................................................................................................. A-2
Physical/Environmental Specifications ............................................................................................. A-3
Electrical Specifications .................................................................................................................... A-3
AC Power Input for 1-Port Model BL-89751ENT, BL-89451ENT, BL-89551ENT,
or BL-89651ENT ..................................................................................................................... A-3
DC Port Power Output ................................................................................................................ A-3
Appendix B: Data/Power Splitter Specifications
Data/Power Splitter Hardware and Electrical Specifications ............................................................. B-1
Regulatory Compliance Standards ............................................................................................. B-1
Product Standards ...................................................................................................................... B-1
Physical/Mechanical Specifications ............................................................................................ B-2
Electrical Specifications .............................................................................................................. B-2
Physical/Environmental Specifications ....................................................................................... B-2

viii
Figures
2-1 BL-89751ENT, BL-89451ENT, BL-89551ENT, or BL-89651ENT
1-Port Mid-Span Power Unit ..................................................................................................2-1
2-2 BL-89751ENT, BL-89451ENT, BL-89551ENT, or BL-89651ENT
1-Port Mid-Span Power Unit with Splitter...............................................................................2-3
Tables
3-1 Troubleshooting Checklist......................................................................................................3-1
A-2 1-Port Model BL-89751ENT, BL-89451ENT, BL-89551ENT, or
BL-89651ENT Physical and Mechanical Specifications........................................................ A-2
A-3 LED States and Definitions ...................................................................................................A-2
A-4 Physical and Environmental Specifications........................................................................... A-3
B-1 Physical and Mechanical Specifications ............................................................................... B-2
B-2 Electrical Specifications ........................................................................................................ B-2
B-3 Physical and Environmental Specifications........................................................................... B-2

Mid-Span Power Unit 1-Port User’s Guide ix
About This Guide
Purpose
This document provides information and procedures on hardware installation, setup,
configuration, and management of the Enterasys Networks 1-port Mid-Span Power Unit.
Who Should Use This Guide
This document is intended for administrative and technical personnel responsible for
installing and managing Enterasys Networks products.
To use this document effectively, you should have a working knowledge of Local Area
Networking (LAN) concepts and wireless LAN access infrastructures. In addition, you
should be familiar with the following:
• A working knowledge of basic electronics and mechanical assembly.
• An understanding of local operating and troubleshooting procedures.
• An understanding of related local building codes.
Document Conventions
The following conventions are used in this guide:
Electrical Hazard: Only qualified personnel should perform the installation procedures
described in this guide.
Note: Calls the reader’s attention to any item of information that may be of special
importance.
Caution: Contains information essential to avoid damage to the equipment.
Electrical Hazard: Warns against an action that could result in personal injury or death
due to an electrical hazard.

Getting Help
x About This Guide
Getting Help
For additional support related to the modules or this document, contact
Enterasys Networks using one of the following methods:
Before contacting Enterasys Networks for technical support, have the following
information ready:
• Your Enterasys Networks service contract number
• A description of the failure
• A description of any action(s) already taken to resolve the problem (e.g., changing
mode switches, rebooting the unit, etc.)
• The serial and revision numbers of all involved Enterasys Networks products in the
network
• A description of your network environment (layout, cable type, etc.)
• Network load and frame size at the time of trouble (if known)
• The device history (i.e., have you returned the device before, is this a recurring
problem, etc.)
• Any previous Return Material Authorization (RMA) numbers
World Wide Web http://www.enterasys.com/support
Phone 603-332-9400
1-800-872-8440 (toll-free in U.S. and Canada)
For the Enterasys Networks Support toll-free number in your country:
http://www.enterasys.com/support/gtac-all.html
Internet mail support@enterasys.com
To send comments or suggestions concerning this document to the Technical Writing Department:
techwriting@enterasys.com
To expedite your message, please type [techwriting] in the subject line, and include the document
Part Number in the email message.

Mid-Span Power Unit 1-Port User’s Guide 1-1
1
Introduction
Functions and Features
The BL-89751ENT, BL-89451ENT, BL-89551ENT, and BL-89651ENT 1-port Mid-Span
Power Unit supports applications in which AC power is difficult to access, such as VoIP
phones, wireless LAN access points or Internet security cameras.
The Enterasys 1-port Mid-Span Power Unit acts as a “patch panel” and adds ~48 VDC to
unused (non-data) wires in a standard Category 5, 5e, or 6 Ethernet cable. The Mid-Span
Power Unit delivers both data and power over a single standard Ethernet cable.
Main features of the 1-port Mid-Span Power Unit include:
• Remote power feeding; powered devices receive power over the Ethernet cable
• Centralized power distribution; one powered device can be connected to a single unit
• IEEE 802.3af standard powering scheme
• Acts as a normal patch panel and places ~48 VDC on unused Ethernet pins
• Total power available: 15.6 W per port per IEEE specification
• Automatic power-control circuitry to detect a powered device before providing power
• Double-fused power surge protection
Port Indicators
Each port has its own LEDs which display:
• Detect (green)
• Fuse blown (yellow)
• Power from chassis (green)
• Power forwarding (green)
For more information on Troubleshooting, refer to Table 3-1 on page 3-1.

Port Indicators
1-2 Introduction

Mid-Span Power Unit 1-Port User’s Guide 2-1
2
Installation and Connection
Verifying the Kit
Unpack the unit and verify that you have all of the following items (See Figure 2-1 on
page 2-1).
Kit Contents
Figure 2-1 BL-89751ENT, BL-89451ENT, BL-89551ENT, or BL-89651ENT 1-Port
Mid-Span Power Unit
Electrical Hazard: Only qualified personnel should install or service this unit.
Enterasys 1-port Mid-Span Power Unit
Power Supply
Power Cord
User's Guide
User's
Guide
External Power Supply
Power Cord

Technical Considerations
2-2 Installation and Connection
Technical Considerations
Before you mount the unit to a fixed location, consider the following:
• Determine optimal placement.
• Collect and document network information as required.
• Ensure the cable length from the Ethernet network source to the powered device does
not exceed 100 meters.
• Connect the unit to a grounding type AC outlet (100 -240 VAC), using the standard
power cord and power supply supplied.
• Allow for easy access to disconnect the unit from the AC outlet, if necessary.
• Do not cover the unit or block the airflow with any other objects. Keep the unit away
from excessive heat, humidity, vibration and dust.
• Installation must at all times conform to local regulations.
• There are no user serviceable parts inside the unit. If support is needed, refer to
“Getting Help” on page x.
Using a Splitter with the 1-Port Mid-Span Power Unit
Some products require a BL-89705ENT or BL-89712ENT splitter (sold separately) that
splits power and data into separate cables, and converts the ~48.0 VDC into 5.0 VDC or
12.0 VDC for input power. To ensure compliance with Class A requirements, use category
5 shielded twisted pair straight-through cables.
Figure 2-2 on page 2-3 depicts a typical configuration for a 1-port Mid-Span Power Unit
operating with a splitter.
Note: The unit is not a repeater and does not amplify the Ethernet data signal.
Caution: Observe the following requirements when mounting the Enterasys 1-port
Mid-Span Power Unit.

Powering Up
Mid-Span Power Unit 1-Port User’s Guide 2-3
Figure 2-2 BL-89751ENT, BL-89451ENT, BL-89551ENT, or BL-89651ENT 1-Port
Mid-Span Power Unit with Splitter
Powering Up
Simply plug one end ofthe power supply into the unit, one end of the power cord
into the power supply, and other end of the power cord into a grounded AC power source.
Units are typically connected to a power strip or other poweroutlet thatmay be cycled on
and off. An uniterruptible power supply may be used.
DATA
DATA / P WR
DATA / P WR
DATA
POWER
BL-8970 ENT - .0 VDC
BL-89712ENT - 12.0 VDC
Power / Data Splitter

Powering Up
2-4 Installation and Connection

Mid-Span Power Unit 1-Port User’s Guide 3-1
3
Troubleshooting
Refer to Table 3-1 for a checklist of problems and recommended actions to resolve the
problem. If additional support is needed, refer to “Getting Help” on page x.
Table 3-1 Troubleshooting Checklist
Problem Recommended Action
Unit is plugged into the Enterasys Mid-Span
Power Unit, but main power indicator is “off.”
Verify the use of a good AC cable with a good
ground connection.
Verify that the AC is “hot” and that voltage is
from 100 VAC to 264 VAC (50 Hz to 60 Hz.)
The Mid-Span Power Unit operates but one of
the powered devices does not work.
Verify that you are using a standard UTP Cat. 5
or greater cable, including all 8 wires (4 pairs.)
Try using a different Ethernet cable. If it works,
there is probably a faulty connection over the
long cable, or a bad RJ45 connection.
The Mid-Span Power Unit operates and the
load device works, but there is no data link.
Verify that the indicator for the port is “on.”
Verify that the Mid-Span Power Unit is
connected to the Ethernet network with a good
connection.
Verify that the Ethernet cable is Category 5 or
greater, and is less than 100 meters in length
from the Ethernet source to the load.
Try to connect a different device over the same
port. If it works and link is established, there is
probably a faulty data link in the load.
If possible, try to connect the load device into a
different unit. If it works, there is probably a
faulty output or input port in the Mid-Span
Power Unit or a bad RJ45 connection.

Troubleshooting
3-2 Troubleshooting
This manual suits for next models
3
Table of contents