Edge-Core EWS4502 User manual

Installation Guide
www.edge-core.com
2-Port
Wireless Access Controller
EWS4502

Installation Guide
EWS4502 Wireless Access Controller
with 2 1000BASE-T (RJ-45) Ports,
E062013-CS-R01
149100000238A

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How to use This Guide
This guide includes detailed information on the wireless controller hardware,
including network ports, power, and cabling requirements. This guide also provides
general installation guidelines and recommended procedures. To deploy this
wireless controller effectively and ensure trouble-free operation, you should first
read the relevant sections in this guide so that you are familiar with all its hardware
components.
Who Should Read this
Guide?
This guide is for network administrators and support personnel that install, operate
and maintain network equipment. The guide assumes a basic working knowledge
of LANs (Local Area Networks) and can be read by those that are new to network
equipment, or those with more experience.
How this Guide is
Organized
This organization of this guide is based on the wireless controller’s main hardware
components. Each chapter includes information about a specific component with
relevant specifications and installation procedures. An overview section is also
provided.
For Users New to Wireless Controllers — If you are new to network equipment,
it is recommended that you first read all chapters in this guide before installing the
device.
For Experienced Users — If you are already familiar with installing and operating
network equipment, the Wireless Controller Overview and Installation Overview
chapters provide you with enough information to install the wireless controller.
Other chapters can be left for reference, when needed.
The guide includes these chapters:
◆Chapter 1 - Wireless Controller Overview — Includes an introduction to the
wireless controller, key component identification, and key technical
specifications.
◆Chapter 2 - Installation Overview — Includes information on the package
contents and an outline of wireless controller installation tasks.
◆Chapter 3 - Wireless Controller Chassis — Includes chassis installaion for rack or
desktop, and system cooling requirements.
◆Chapter 4 - Power and Grounding — Includes power connection information,
and grounding.

How to Use This Guide
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◆Chapter 5 - Port Connections — Includes information on network interfaces
and cabling specifications.
◆Chapter 6 - Wireless Controller Management — Connecting to the wireless
controller for management, and information on the system status LEDs.
◆Appendix A - Troubleshooting — Information for troubleshooting wireless
controller installation and operation.
Related
Documentation
This guide focuses on device hardware and installation, it does not cover software
configuration. For specific information on how to operate and use the
management functions of the wireless controller, see the following guides:
The CLI Command Reference
The Administrator’s Guide
For all safety information and regulatory statements, see the following document:
Safety and Regulatory Information
Conventions The following conventions are used throughout this guide to show information:
Note: Emphasizes important information or calls your attention to related features
or instructions.
Caution: Alerts you to a potential hazard that could cause loss of data, or damage
the system or equipment.
Warning: Alerts you to a potential hazard that could cause personal injury.
Revision History This section summarizes the changes in each revision of this guide.
June 2013 Revision
This is the first revision of this guide.

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Contents
Warranty and Product Registration 4
How to use This Guide 5
Contents 7
Figures 9
Tables 10
1 Wireless Controller Overview 11
Introduction to the WAC4502 Wireless Access Controller 11
Key Hardware Components 11
Key Technical Specifications 13
2 Installation Overview 14
Package Contents 14
Overview of Installation Tasks 15
3 Wireless Controller Chassis 19
General Installation Guidelines 19
How to Install the Unit in a Rack 20
Rack-Mounting Items 20
Rack-Mount Procedure 20
Unit Cooling Requirements 22
Rack Cooling 22
4 Power and Grounding 23
AC Power Supply 23
Grounding the Chassis 24
How to Connect to AC Power 24
5 Port Connections 27
Cable Labeling and Connection Records 28

Contents
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Understanding the Port Status LEDs 29
How to Connect to Twisted-Pair Copper Ports 30
Copper Cabling Guidelines 30
10/100BASE-TX Pin Assignments 31
1000BASE-T Pin Assignments 31
Connection Procedure 32
6 Wireless Controller Management 35
Understanding the System Status LEDs 35
How to Connect to the Console Port 36
A Troubleshooting 38
Diagnosing LED Indicators 38
System Self-Diagnostic Test Failure 38
Power and Cooling Problems 39
Installation 39
In-Band Access 39
Index 40

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Figures
Figure 1: Front Panel 11
Figure 2: Rear Panel 12
Figure 3: Installing the Wireless Controller in a Rack 15
Figure 4: Connecting AC Power 16
Figure 5: System LEDs 16
Figure 6: Console Port 17
Figure 7: Making a Connection to an RJ-45 Port 18
Figure 8: Attaching the Brackets 21
Figure 9: Installing the Wireless Controller in a Rack 21
Figure 10: AC Power Socket 23
Figure 11: AC Power Socket 24
Figure 12: Port Status LEDs 29
Figure 13: RJ-45 Connector 31
Figure 14: Making Twisted-Pair Connections 32
Figure 15: System LEDs 35
Figure 16: Console Port 36
Figure 17: Console Port Connection 37

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Tables
Table 1: Key Technical Specifications 13
Table 2: AC Power Supply Specifications 23
Table 3: Port Status LEDs 29
Table 4: Maximum Twisted-Pair Copper Cable Lengths 30
Table 5: 10/100BASE-TX MDI and MDI-X Port Pinouts 31
Table 6: 1000BASE-T MDI and MDI-X Port Pinouts 31
Table 7: System Status LEDs 36
Table 8: Console Cable Wiring 36
Table 9: Troubleshooting Chart 38

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1Wireless Controller Overview
This chapter includes these sections:
◆“Introduction to the EWS4502 Wireless Access Controller” on page 11
◆“Key Technical Specifications” on page 13
Introduction to the EWS4502 Wireless Access Controller
The EWS4502 wireless access controller is built with leading-edge technology to
deliver reliable high-performance connectivity for your data network.
The EWS4502 is an intelligent Layer 2 wireless controller designed for managing
access points in an enterprise-wide Wi-Fi network. The wireless controller provides
two 1000BASE-TX RJ-45 ports for wired connections to other network devices.
The wireless controller has one RJ-45 serial console port for out-of-band
management access. It also includes a management agent, which supports in-band
access using a Web browser, SNMP/RMON, or Telnet/SSH.
Key Hardware
Components
The EWS4502 wireless controller consists of serveral key harware components. This
manual describes each specific component, or related components, together with
their installation requirements and procedures in each chapter. To understand each
component in detail, refer to the relevant section.
Figure 1: Front Panel
14
3
2
1000BASE-T RJ-45 Ports System and Port LEDs
Console Ports Reset Button
1
3
2
4

Chapter 1 | Wireless Controller Overview
Introduction to the EWS4502 Wireless Access Controller
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RJ-45 Ports
The wireless controller provides two 1000BASE-T RJ-45 ports for network
connections. For more information, see “How to Connect to Twisted-Pair Copper
Ports” on page 30.
System LEDs
For information on system status LED indicators, see “Understanding the System
Status LEDs” on page 35.
Port LEDs
For information on port status LED indicators, see “Understanding the Port Status
LEDs” on page 29.
Console Port
The RJ-45 port labeled “Console” provides an out-of-band serial connection to a
terminal or a PC running terminal emulation software. The port can be used for
performing wireless controller monitoring and configuration. For more
information, see “How to Connect to the Console Port” on page 36.
Reset Button
The Reset button can bu used to restart the unit or restore factory defaults. For
more information, see “How to Connect to the Console Port” on page 36.
Figure 2: Rear Panel
AC Power Socket
The AC power socket is used to connect the wireless controller to an AC power
source. For more information, see “How to Connect to AC Power” on page 24.
1
AC Power Socket
1

Chapter 1 | Wireless Controller Overview
Key Technical Specifications
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Key Technical Specifications
The following table contains key system specifications for the wireless controller.
Table 1: Key Technical Specifications
Item Specification
Ports 2 1000BASE-T RJ-45 ports
Network Interface Ports 1~2: RJ-45 connector, auto MDI/X
◆10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better)
◆100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better)
◆1000BASE-T: RJ-45 (100-ohm, UTP or STP cable; Category 5, 5e
or 6)
Aggregate Bandwidth 4 Gbps
LEDs System: Power/System
Ports 1~2:
Status (link and activity)
Weight 2.1 kg (4.63 lb)
Size W x D x H: 330 x 175 x 44 mm (12.99 x 6.89 x 1.73 inches)
Power 100~240V AC, 50~60Hz, 65 W
Temperature Operating: 0 °C to 50 °C (32 °F to 122 °F)
Storage: -40 °C to 70 °C (-40 °F to 158 °F)
Humidity Operating: 5% to 95% (non-condensing)
Out-of-Band Management RS-232 RJ-45 console port
In-Band Management SSH, Telnet, SNMP, or HTTP
Software Loading HTTP, FTP/SFTP/TFTP, or SCP in-band
Throughput Wire speed

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2Installation Overview
This chapter includes these sections:
◆“Package Contents” on page 14
◆“Overview of Installation Tasks” on page 15
Package Contents
After unpacking the wireless controller, check the contents to be sure you have
received all the items.
◆EWS4502 Wireless LAN Controller
◆Rack Mounting Kit containing two brackets and eight screws for attaching the
brackets to the wireless controller
◆Power cord—either US, Continental Europe or UK
◆Console cable (RJ-45 to DB-9)
◆Quick Start Guide
◆Regulatory and Safety Information
◆Documentation CD — includes Installation Guide, Administrator’s Guide, and CLI
Command Reference

Chapter 2 | Installation Overview
Overview of Installation Tasks
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Overview of Installation Tasks
Follow these tasks to install the wireless controller in your network. For full details
on each task, go to the relevant chapter or section by clicking on the link.
Note: Before installing your wireless controller, be sure to review all the safety
statements and guidelines in the Regulatory and Safety Information document.
Install the Chassis
Plan your installation location and install the wireless controller chassis.
Go to the chapter “Wireless Controller Chassis”
Figure 3: Installing the Wireless Controller in a Rack
Task 2
21
Attach the rack mounting brackets to the unit.
Use the rack mounting screws supplied with the rack to secure the wireless
controller in the rack.
1
2

Chapter 2 | Installation Overview
Overview of Installation Tasks
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Power On
Ground the wireless controller, then power on.
Go to the chapter “Power and Grounding”
Figure 4: Connecting AC Power
Verify Wireless Controller Operation
Verify basic wireless controller operation by checking the system LEDs.
Go to the section “Understanding the System Status LEDs”
Figure 5: System LEDs
Task 3
Connect an external AC power source to the wireless controller.
1
1
Task 4
System Status LED.
1
1

Chapter 2 | Installation Overview
Overview of Installation Tasks
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Make Initial Configuration Changes
At this point you may need to make a few basic wireless controller configuration
changes before connecting to the network. It is suggested to connect to the
wireless controller console port to perform this task.
Go to “How to Connect to the Console Port”
Figure 6: Console Port
For information on initial wireless controller configuration:
Refer to the Administrator’s Guide.
Connect Cables
Connect network cables to the wireless controller.
Go to the chapter “Port Connections”
Task 5
1
Console Port.
1
Task 6

Chapter 2 | Installation Overview
Overview of Installation Tasks
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Figure 7: Making a Connection to an RJ-45 Port
Connect Category 5, 5e, 6 or better cable to the RJ-45 ports.
1
1

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3Wireless Controller Chassis
The wireless controller is designed to be installed in a standard 19-inch equipment
rack.
Before continuing with installation, first review the general guidelines and unit
cooling requirements in this chapter.
This chapter includes these sections:
◆“General Installation Guidelines” on page 19
◆“How to Install the Unit in a Rack” on page 20
◆“Unit Cooling Requirements” on page 22
General Installation Guidelines
Be sure to follow the guidelines below when choosing a location.
◆The installation location should:
■be able to maintain its temperature within 0 to 40 °C (32 to 104 °F) and its
humidity within 5% to 95%, non-condensing.
■provide adequate space (approximately five centimeters or two inches) on
all sides for proper air flow.
■be accessible for installing, cabling and maintaining the device.
■allow the status LEDs to be clearly visible.
◆Make sure twisted-pair cable is always routed away from power lines,
fluorescent lighting fixtures and other sources of electrical interference, such as
radios and transmitters.
◆Make sure that the unit is connected to a separate grounded power outlet and
is powered from an independent circuit breaker. As with any equipment, using
a filter or surge suppressor is recommended.

Chapter 3 | Wireless Controller Chassis
How to Install the Unit in a Rack
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How to Install the Unit in a Rack
When rack mounting the wireless controller, pay particular attention to the
following factors:
◆Rack Types: You can use any standard EIA 19-inch equipment rack with either
two or four posts. The bracket hole pattern should be spaced 1U (1.75 in. or
4.45 cm) apart.
◆Rack Stability: Whenever possible, secure the rack to the building ceiling or
floor, particularly if you are located in a region where earthquakes are common.
◆Rack Planning: When installing equipment in a rack, first plan how units can
be best arranged. Try to always mount the heaviest equipment at the bottom
of the rack.
◆Temperature: Since the temperature within a rack assembly may be higher
than the ambient room temperature, check that the rack-environment
temperature is within the specified operating temperature range. See “Unit
Cooling Requirements” on page 22.
◆Mechanical Loading: Do not place any equipment on top of a rack-mounted
unit.
◆Circuit Overloading: Be sure that the supply circuit to the rack assembly is not
overloaded.
◆Grounding: Rack-mounted equipment should be properly grounded.
Rack-Mounting Items Before you start to rack-mount the wireless controller, be sure to have the following
items available:
◆Four mounting screws for each device you plan to install in a rack—these are
not included. Be sure to use the rack mounting screws that are supplied with
the rack.
◆A screwdriver (Phillips or flathead, depending on the type of screws used).
Rack-Mount
Procedure
To rack mount the wireless controller, follow these steps:
1. Attach the brackets to the device using the screws provided in the Rack
Mounting Kit.

Chapter 3 | Wireless Controller Chassis
How to Install the Unit in a Rack
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Figure 8: Attaching the Brackets
2. Following your rack plan, mark the holes in the rack where the wireless
controller will be installed.
3. Lift the wireless controller into the rack so that it is aligned with the marked
holes.
4. Secure the wireless controller in the rack, using four rack-mounting screws (not
provided).
Figure 9: Installing the Wireless Controller in a Rack
Use the screws included in the rack
mounting kit.
Use the rack mounting screws supplied
with the rack.
1
1
1
1

Chapter 3 | Wireless Controller Chassis
Unit Cooling Requirements
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5. If installing a single wireless controller only, go to “Power and Grounding” on
page 23.
6. If installing multiple wireless controllers, repeat steps 1 to 4 to mount the units
following your rack plan.
Unit Cooling Requirements
Wherever the wireless controller is located, be sure to pay close attention to
cooling requirements. The location should be well ventilated and provide
unrestricted air flow at the front, back, and sides of the wireless controller. If the air
flow is insufficient, it may cause the wireless controller to overheat and possibly fail.
Rack Cooling When mounting the wireless controller in an enclosed rack or cabinet, be sure to
check the following guidelines to prevent overheating:
◆Make sure that enough cool air can flow into the enclosure for the equipment it
contains.
◆Check that the rack or cabinet allows the hot air to exit the enclosure (normally
from the top) without circulating back into equipment.
◆If the enclosure has sides or doors with ventilation holes, make sure they are
not blocked by cables or other obstructions.
◆Route cables within the rack or cabinet to maximize the air flow.
◆When possible, do not completely fill the rack or cabinet with equipment, allow
some unused space within the enclosure for better air flow.