Meru Networks AP150R2 User Manual

Meru Access Point and
Radio Switch

Installation Guide

Copyright © Meru Networks, Inc., 2003–2007. All rights reserved.
Other names and brands may be claimed as the property of others.

Document Number: 882-70034 Rev. A

Contents

About This Guide . . . . . . . . . . . . . . . . . . . . . . .ix

Audience . . . . . . . . . . . . . . . . . . . . . . . . . ix

In This Guide. . . . . . . . . . . . . . . . . . . . . . . . ix

Other Sources of Information . . . . . . . . . . . . . . . . . . x

Meru Publications . . . . . . . . . . . . . . . . . . . . . x

External References . . . . . . . . . . . . . . . . . . . . x

Typographic Conventions . . . . . . . . . . . . . . . . . . . x

Contacting Meru . . . . . . . . . . . . . . . . . . . . . . xi

Customer Services and Support . . . . . . . . . . . . . . . . xi

Chapter 1

Chapter 2

Chapter 3

Meru Access Points and Radio Switch . . . . . . . . . . . . . 1

Introducing the Radio Switch RS4000 . . . . . . . . . . . . . . . 1

RS4000 Hardware Features and Specifications . . . . . . . . . . . 3

Meru Access Point Features. . . . . . . . . . . . . . . . . . . 5

Introducing the Meru Access Point AP200 Series . . . . . . . . . . 5

Introducing the Meru Access Point AP150 Series . . . . . . . . . . 6

Installing the RS4000 . . . . . . . . . . . . . . . . . . . . . 9

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . 9

Unpacking the RS4000 . . . . . . . . . . . . . . . . . . . . 9

Installation Requirements . . . . . . . . . . . . . . . . . . . 10

About an Hoffman/NEMA Enclosure Installation . . . . . . . . . . 12

Optimum Antenna Positioning and Placement . . . . . . . . . . . 13

Installing the RS4000 . . . . . . . . . . . . . . . . . . . . . 14

Mounting the RS4000 . . . . . . . . . . . . . . . . . . . . 14

Placing and Positioning the Antenna . . . . . . . . . . . . . . 23

Hoffman/NEMA Enclosure RS4000 Installation . . . . . . . . . . . 25

Where to Go From Here . . . . . . . . . . . . . . . . . . . . 27

Checking LED Activity. . . . . . . . . . . . . . . . . . . . . 28

RS4000 Status LEDs . . . . . . . . . . . . . . . . . . . . 28

Installing the AP200 . . . . . . . . . . . . . . . . . . . . 31

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . 31

Unpacking the AP200 . . . . . . . . . . . . . . . . . . . . . 31

Installation Requirements . . . . . . . . . . . . . . . . . . . 32

Installing the Access Points . . . . . . . . . . . . . . . . . . . 34

Selecting a Location . . . . . . . . . . . . . . . . . . . . 34

Attaching the AP200 Antennas . . . . . . . . . . . . . . . . 35

© 2007 Meru Networks, Inc. Contents iii

Mounting the Access Point . . . . . . . . . . . . . . . . . 35

Where to Go From Here . . . . . . . . . . . . . . . . . . . 43

Checking LED Activity . . . . . . . . . . . . . . . . . . . . 43

Ethernet Connector LEDs . . . . . . . . . . . . . . . . . . 43

AP200 Status LEDs . . . . . . . . . . . . . . . . . . . . 44

Chapter 4

Appendix A

Appendix B

Installing the AP150 . . . . . . . . . . . . . . . . . . . . . 47

Safety Precautions . . . . . . . . . . . . . . . . . . . . . 47

Unpacking the AP150 . . . . . . . . . . . . . . . . . . . . 47

Installation Requirements. . . . . . . . . . . . . . . . . . . 48

Installing the Access Points . . . . . . . . . . . . . . . . . . 50

Selecting a Location . . . . . . . . . . . . . . . . . . . 50

Attaching the AP150 Antennas . . . . . . . . . . . . . . . . 51

Mounting the Access Point . . . . . . . . . . . . . . . . . 51

Where to Go From Here . . . . . . . . . . . . . . . . . . . 57

Checking LED Activity . . . . . . . . . . . . . . . . . . . . 58

AP150 Status LEDs . . . . . . . . . . . . . . . . . . . . 58

Specifications . . . . . . . . . . . . . . . . . . . . . . . . 61

Wireless Interface . . . . . . . . . . . . . . . . . . . . . 61

Ethernet Interface . . . . . . . . . . . . . . . . . . . . . 62

Physical . . . . . . . . . . . . . . . . . . . . . . . . . 62

Regulatory Information . . . . . . . . . . . . . . . . . . . 63

USA . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Underwriters Laboratories . . . . . . . . . . . . . . . . . 63

FCC Radiation Exposure Statement . . . . . . . . . . . . . . 64

Radio Frequency Interference Requirements . . . . . . . . . . . 64

Canada. Industry Canada (IC) . . . . . . . . . . . . . . . . . 65

Europe—EU Declaration of Conformity and Restrictions . . . . . . . . 67

IEEE 802.11a Restrictions. . . . . . . . . . . . . . . . . . 69

EEE 802.11b/g Restrictions . . . . . . . . . . . . . . . . . 70

Japan. . . . . . . . . . . . . . . . . . . . . . . . . . 70

Manufacturing Information . . . . . . . . . . . . . . . . . . 71

Appendix C

Appendix D

iv Meru Access Point and Radio Switch Installation Guide © 2007 Meru Networks, Inc.

Channels . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Channels . . . . . . . . . . . . . . . . . . . . . . . . 73

IEEE 802.11a . . . . . . . . . . . . . . . . . . . . . . 73

IEEE 802.11b/g . . . . . . . . . . . . . . . . . . . . . 75

Mounting Bracket Stencils . . . . . . . . . . . . . . . . . . 77

AP150 Mounting Bracket Stencil . . . . . . . . . . . . . . . . 77

List of Figures

Figure 1 Radio Switch RS4000 .............................................................. 2

Figure 2 Access Point AP200 ............................................................... 6

Figure 3 Access Point AP150 ............................................................... 7

Figure 4 RS4000 Package Contents ........................................................ 10

Figure 5 Open NEMA Box Showing Mounting Holes ...................................... 13

Figure 6 Bracket Attached to RS4000 ..................................................... 15

Figure 7 RS4000 Bracket Mounting ........................................................ 16

Figure 8 RS4000 with Antenna Attached ................................................. 17

Figure 9 Mounting the RS4000 Below a Suspended Ceiling Rail ....................... 18

Figure 10 RS4000 with Antenna Attached ................................................ 19

Figure 11 Mounting the RS4000 Above a Suspended Ceiling ........................... 20

Figure 12 Box Hanger Mounting Bracket Holes .......................................... 21

Figure 13 Attaching the Mounting Bracket to the Box Hanger ........................ 21

Figure 14 RS4000 with Antenna Attached ................................................ 22

Figure 15 RS4000 180

Figure 16 Antenna Mounting Arm with Wall Bracket (shown attached) ............. 24

Figure 17 Antenna Ceiling Tile Rail Base ................................................. 24

Figure 18 RS4000 and Antenna Installed in NEMA Enclosure .......................... 26

Figure 19 RS4000 Status LEDs .............................................................. 28

Figure 20 AP200 Mounting Bracket ........................................................ 32

Figure 21 AP200 Antenna Connection ..................................................... 36

Figure 22 AP200 Connector Panel ......................................................... 36

Figure 23 AP200 Bracket .................................................................... 37

Figure 24 Aligning the AP200 with the Bracket ......................................... 38

Figure 25 Sliding the AP200 into the Bracket ............................................ 38

Figure 26 Mounting the AP200 to a Suspended Ceiling Rail ........................... 39

Figure 27 Mounting the AP200 Above a Suspended Ceiling ............................ 41

Figure 28 Box Hanger Mounting Bracket Holes .......................................... 41

Figure 29 Attaching the Mounting Bracket to the Box Hanger ........................ 42

Figure 30 RJ-45 LEDs ........................................................................ 43

Figure 31 AP200 Status LEDs ............................................................... 44

Figure 32 AP150 with Mounting Bracket .................................................. 48

Figure 33 AP150 Antenna Connection ..................................................... 52

Figure 34 AP150 Connector Panel ......................................................... 52

Figure 35 AP150 Bracket .................................................................... 54

Figure 36 Aligning the AP150 with the Bracket ......................................... 55

Figure 37 Mounting the AP150 to a Suspended Ceiling Rail ........................... 56

Figure 38 AP150 Status LEDs ............................................................... 58

o

Directional Antenna ............................................. 23

© 2007 Meru Networks, Inc. List of Figures v

vi Meru Access Point and Radio Switch Installation Guide © 2007 Meru Networks, Inc.

List of Tables

Table 1 RS4000 Hardware Features .............................................. 3

Table 2 RS4000 Installation Tools ................................................ 12

Table 3 RS4000 LED Descriptions ................................................. 29

Table 4 AP200 Installation Items ................................................. 33

Table 5 AP200 Installation Tools ................................................. 34

Table 6 AP200 LED Descriptions .................................................. 45

Table 7 AP200 Controller Status Information ................................... 45

Table 8 AP150 Installation Items ................................................. 49

Table 9 AP150 Installation Tools ................................................. 50

Table 10 AP150 LED Descriptions ................................................. 59

Table 11 Wireless Interface Specifications ..................................... 61

Table 12 IEEE 802.11a Channels .................................................. 73

Table 13 IEEE 802.11b/g Channels ............................................... 75

© 2007 Meru Networks, Inc. List of Tables vii

viii Meru Access Point and Radio Switch Installation Guide © 2007 Meru Networks, Inc.

This guide describes the features and provides installation instructions for the Meru
Access Points, which includes the AP200 and AP150 models, and the Radio Switch
RS4000. The term access point is used interchangeably throughout this document to
apply to any model when there are no differences among the models.

Audience

This guide is intended for persons installing the Meru Wireless LAN System Access
Point (AP) and Radio Switches.

In This Guide

About This Guide

This guide includes the following chapters:

z Chapter 1, “Meru Access Points and Radio Switch”

z Chapter 2, “Installing the RS4000”

z Chapter 3, “Installing the AP200”

z Chapter 4, “Installing the AP150”

z Appendix A, “Specifications”

z Appendix B, “Regulatory Information”

z Appendix C, “Channels”

z Appendix D, “Mounting Bracket Stencils”

© 2007 Meru Networks, Inc. About This Guide ix

Other Sources of Information

Additional information is available in the following Meru publications, Web site, and
external references.

Meru Publications

z Meru System Director Release Notes

z Meru System Director Getting Started Guide

z Meru Controller Installation Guide

z Meru System Director Command Reference

z Meru System Director Configuration Guide

External References

z Stevens, W. R. 1994. TCP/IP Illustrated, Volume 1, The Protocols. Addison-Wesley,

Reading, Mass.

z Gast, M.S. 2002. 802.11 Wireless Networks, The Definitive Guide. O’Reilly and

Associates, Sebastopol, Calif.

Typographic Conventions

This document uses the following typographic conventions to help you locate and
identify information:

Note:

Caution!

Warning!

Provides extra information, tips, and hints regarding the topic.

Identifies important information about actions that could result in
damage to or loss of data, or could cause the application to behave in
unexpected ways.

Identifies critical information about actions that could result in
equipment failure or bodily harm.

© 2007 Meru Networks, Inc. About This Guide x

Contacting Meru

You can visit Meru Networks, Inc. on the Internet at this URL:

http://www.merunetworks.com

Customer Services and Support

For assistance, contact Meru Customer Services and Support 24 hours a day at
[phone] (+1-888-Meru-WLA(N)) or [phone]. Email can be sent to
[e-mail].

Meru Networks, Inc. Customer Services and Support provide end users and channel
partners with the following:

z Telephone technical support
z Software update support
z Spare parts and repair service

RMA Procedures

Contact Meru Customer Services and Support for a Return Material Authorization
(RMA) for any Meru equipment.

Please have the following available when making a call:

z Company and contact information
z Equipment model and serial numbers
z Meru software release and revision numbers (for example, 3.0.0-35)
z A description of the symptoms the problem is manifesting
z Network configuration

© 2007 Meru Networks, Inc. About This Guide xi

© 2007 Meru Networks, Inc. About This Guide xii

Chapter 1

Meru Access Points and Radio Switch

Meru Access Points and Radio Switches contain radio devices that communicate with
the Meru Controller and form the wireless LAN (WLAN). The Meru Controller, Radio
Switches, and Access Points connect to the site’s wired LAN through wired switches.
Wireless clients associate with the Radio Switches and Access Points as they roam
throughout the WLAN. As such, the Meru Wireless LAN System is an extension of the
wired LAN, providing the wireless benefits of client mobility, enhanced access, and
dynamic network configuration.

Meru AP

Introducing the Radio Switch RS4000

The Radio Switch RS4000 enables high-capacity enterprise-class wireless LAN connec­tivity with full support of standard 802.11 security and network management
features. Each RS4000 contains four 802.11 radios (two 802.11b/g, two 802.11a) for
high data and voice throughput – an essential requirement for high user-density envi­ronments with several simultaneous users. Classrooms and convention halls are
typical deployment applications of the Radio Switch. Deploying the Radio Switch is

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 1

easy— as with wireless access points, the Radio Switch can be installed wherever
wireless coverage is needed. For large buildings with multiple rooms and floors, more
than one Radio Switch can be installed to cover the desired area. Wireless users can
seamlessly roam from one Radio Switch to another, getting high-capacity WLAN
access throughout the wireless enterprise enabled with multiple Radio Switches. The
RS4000 also balances radio traffic across its RF channels and resolves contention
within each RF channel such that users receive a switched wireless experience with
dedicated bandwidth to execute a variety of applications ranging from web browsing
and VoIP mobility to multimedia streaming.

The RS4000 ships with either a high-gain omni-directional indoor antenna or a 180­degree directional indoor antenna that aggregates and layers radio transmissions
from each of the built-in radios. The antenna can broadcast every channel available
to blanket the area around the Radio Switch, yet avoid interference and contention.
This simplifies deployment efforts by eliminating the need for additional antennas
for each radio. More importantly, RF channel planning efforts are greatly simplified.

Using the RS4000, wireless users experience the benefits of switching technology on
Wi-Fi—dedicated bandwidth, traffic separation, and multi-service network support.

The RS4000 can be deployed with up to two 802.11b/g and two 802.11a channels
active on the radio interfaces. The 802.11b/g channels must be separated by a
minimum of 8 channels (for example, channels 1 and 9), so the recommended set is
channels 1 and 11, typically. The 802.11a channels must be separated by a minimum
of 80MHz/16 channels for best performance (for example, channels 36 and 52).

POWER
RADIO I
RADIO II

ETHERNET

00178

Figure 1: Radio Switch RS4000

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 2

RS4000 Hardware Features and Specifications

The RS4000 has four 802.11 radios (two 802.11a and two 802.11bg) that transmit and
receive simultaneously on four different channels to increase the total available
wireless bandwidth at a given area. The RS4000 connects to the LAN using one 10/100
Mbps Ethernet connection for each radio pair. The RS4000 is powered using two IEEE

802.3af POE connections, each with 15W power.

.

PoE must be provided on the first Ethernet connector (ETH1); the antenna

Note:

The RS4000 works in conjunction with a wideband RF combination omni directional
(WRC/OD) indoor antenna or a 180-degree directional indoor antenna. Only one
antenna is needed for simultaneous operation of all radios of an RS4000 in both the

2.4GHz and 5GHz bands. The antenna must be connected to the Radio Switch using
any one of the low-loss antenna cables provided in the antenna packaging.

The following table lists the key hardware features of the RS4000.

Table 1: RS4000 Hardware Features

cannot operate correctly without that power source. Power to the second
Ethernet connector (ETH2 ) is optional; if not connected, two of the
radios will not operate.

Feature Description

802.11 Connectivity

Ethernet Connectivity

Two 802.11b/g radios (2.4GHz)
Two 802.11a radios (5 GHz)

Two auto-sensing 10/100 Mbps ports, one
for each radio pair

Provided by two 802.3af POE connec-

Power

tions, one for each radio pair (15W per
connector)

LEDs

Power, Radio Activity, and Ethernet
Activity LEDs per radio

Dimensions 9.5" x 8.5" x 3.875"

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 3

Table 1: RS4000 Hardware Features

Feature Description

RS4000 has mounting brackets available
for:

z Ceiling Mount

Mounting Options

z Wall Mount
z Inside NEMA Enclosures (Hoffman,

etc.)

The RS4000 ships with either of these
antennas:

Antenna

Antenna Cables

z Wideband RF Combination/Omni-

Directional (WRC/OD) Antenna. 5dBi
gain. Indoor use.

z 180-degree directional indoor antenna

3’ low-loss cables (default option)
6’ and plenum-rated cables (available

option)

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 4

Meru Access Point Features

Meru Access Points provide the following features:

z Wi-Fi Certified Tri-mode Access Point Delivers Exceptional Performance

A key component of the Meru Wireless LAN System, Meru Access Points deliver
unsurpassed Wi-Fi performance in conjunction with Meru Controllers.
Representing a shift to the fourth generation WLAN architecture using
coordinated intelligent APs at the edge, the Meru Wireless LAN System delivers
toll quality voice over Wi-Fi, a ten-fold increase in client density, intelligent load
balancing, and lowest total cost of ownership.

z The Only Solution to Deliver a Large Scale Voice and Data Wireless Access

Embedded Wi-Fi in laptops are almost ubiquitous and other mobile devices aren't
far behind. In addition, with emerging dual mode Wi-Fi/cellular phones the
number of clients in your enterprise is going to increase exponentially in only a
few short years. Deploy a system that is designed to deal with high densities of
voice and data clients, without sacrificing performance and that works with any
standard Wi-Fi certified client.

z Tri-mode Access Point Provides Investment Protection

Enterprise applications and user density continue to increase. Tri-mode

802.11a/b/g clients are now commonplace in laptops. Ensure your network
supports the full breadth of wireless LAN clients with Meru Access Points.

— Dual 802.11b/g and 802.11a software programmable radios
— Simultaneously support 802.11b, 802.11g and 802.11a clients

Introducing the Meru Access Point AP200 Series

The Meru Access Point AP200 series provides two models that conform to the speci­fications provided by the IEEE 802.11a and 802.11g protocols and provide backward
compatibility for the 802.11b protocol. An AP200 works with most standard Wi-Fi
clients.

z The AP201 houses a single 802.11a/b/g radio device
z The AP208 supports a maximum of two radio devices that can simultaneously run

two protocols (802.11b, g or b/g on interface 1 and 802.11a on interface 2).
Alternately the second radio can be configured to run as an RF monitor to the Meru
Controller, providing real-time status of RF activity to optimize the wireless
network.

The Meru Access Point AP200 series (referred hereafter as the AP200, unless specif­ically referring to the AP201 or AP208) is housed in a metal case with a plastic remov­able cover. As such, it can be used for plenum installations when the plastic cover is
removed.

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 5

AP200

00109

Figure 2: Access Point AP200

Introducing the Meru Access Point AP150 Series

Meru Access Point AP150 models may have different revisions, but function-

Note:

The AP150 has two 802.11 radios for simultaneous 802.11a and 802.11b/g WLAN
access. It is an ideal option for enterprise-wide data-only WLAN implementations and
small-sized converged data and voice WLAN implementations. The AP150 works in
conjunction with Meru Controller products and can be easily integrated into existing
Layer 2 and Layer 3 wired network environments to provide enterprise-grade Wi-Fi
access with multi-layered security options, basic VoWLAN support, centralized
configuration, troubleshooting tools, remote management and RF visualization capa­bilities.

ally they are the same, and all are referred to as the AP150 series. Hereafter
in this document, all AP150 series models are referred to as the AP150.

The Meru Access Point AP150 supplies the following features:

z Dual 802.11b/g and 802.11a radios
z Simultaneously support for 802.11b, 802.11g, and 802.11a clients
z Contention Management for high density of data clients
z Basic VoWLAN QoS support for small density of voice clients
z Multiple ESSIDs with individual security policies to ensure separation of different

user groups or dynamic VLAN assignment per user based on RADIUS credentials

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 6

z Zero configuration required at the access point; the installation procedure is a

simple plug-n-play

z Automatic AP discovery, configuration
z Intelligent load balancing of clients
z Layer 2 or 3 connectivity for flexible deployment options
z Locking mechanism secures access point when mounted in public areas

Figure 3: Access Point AP150

PWR

RADIO1

RADIO2

LAN

00175

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 7

© 2007 Meru Networks, Inc. Meru Access Points and Radio Switch 8

This chapter describes how to physically install the Meru Radio Switch RS4000. It
contains the following sections:

z Safety Precautions

z Unpacking the RS4000

z Installation Requirements

z Installing the RS4000

z Where to Go From Here

z Checking LED Activity

Safety Precautions

Chapter 2

Installing the RS4000

IMPORTANT—Read and follow the instructions in Appendix B, “Regulatory Informa-

tion” on page 63 before installing and operating this product.

Unpacking the RS4000

Confirm that the RS4000 shipping package contains the following items:

z RS4000
z 180-degree directional antenna or omni-directional antenna
z Two 3-foot antenna cables
z One 3-inch mounting arm (includes wall mount base and ceiling rail base)
z Mounting bracket
z Additional options can be purchased, such as a NEMA box mounting bracket and

6-foot antenna cables

© 2007 Meru Networks, Inc. Installing the RS4000 9

Installation Requirements

ER

POW

RADIO I

RADIO II

ETHERNET

RS4000Antenna

Wall mounting bracket 3-inch mounting arm with

Figure 4: RS4000 Package Contents

Installation Requirements

The following prerequisites and system requirements must be met:

z 2 IEEE 802.3 PoE connections— one to each Ethernet port, yielding a maximum

power specification of 11W per port, 22W total for the RS4000

z Network switch for connecting all networking components

The RS4000 requires a location that meets the following:

wall mounting base

Ceiling rail
mounting
base

00193

z A location to mount the antenna within 6’ of the RS4000 and with relatively

unobstructed access to the client stations

z Power over Ethernet (PoE) connection to the network switch servicing the RS4000

10 Meru Access Point and Radio Switch Installation Guide © 2007 Meru Networks, Inc.

Installation Requirements

The RS4000 obtains power from 802.3af standard Power over Ethernet (PoE)-compat­ible network switch or PoE power injector installed between the switch and the
RS4000. At least one PoE connection must be connected.

Select a location with minimal physical obstructions between the RS4000 antenna
and the wireless stations. In many cases, mounting the RS4000 antenna on the wall
near the ceiling provides the least obstructed communications path.

Most installations receive the best coverage using the following guidelines:

z Do not install the antenna near metal objects, such as heating ducts, metal doors,

or electric service panels.

z Relative to the ground, orient the antenna up or down, not sideways.

Note:

The previous guidelines are general guidelines. Each site has its own unique

environment. Place antenna accordingly.

The RS4000 is only intended for installation in Environment A as defined in IEEE

802.3af. All interconnected equipment must be contained within the same building,
including the interconnected equipment's associated LAN connection.

© 2007 Meru Networks, Inc. Installing the RS4000 11

Installation Requirements

You need the tools listed in Tabl e 2 .

Table 2: RS4000 Installation Tools

Installation Type Tools Required

Vertical mounting over a wall
stud

Vertical mounting on sheetrock

Horizontal mounting below a
hanging ceiling

z Drill
z 1/8"drill bit
z Screwdriver
z (Optional) Pliers

z Drill
z 3/16" drill bit
z Screwdriver
z (Optional) Pliers

z Two caddy fasteners
z Two plastic spacers
z Two keps nuts (with attached lock washer)
z Mounting bracket

z Two T- ra il cl ip s
z One T-box hanger

Mounting above a ceiling tile

z One bracket mounting clip
z Mounting bracket

About an Hoffman/NEMA Enclosure Installation

The recommended RS4000 installation is a wall mount, but if necessary the RS4000
can be housed inside a protective NEMA or Hoffman box that is manufactured with
external corner tabs for standard wall mounting, above or below a ceiling. When
installing in the Hoffman/NEMA box, the RS4000 attaches to an optional
Hoffman/NEMA box mounting plate, which replaces the standard wall mount bracket.

Caution!

Laboratories.

Meru leaves the placement and orientation of the Hoffman/NEMA enclosure to the
customer. It will be necessary to drill holes through the plastic NEMA enclosure with
a Meru-provided template to enable the antenna and Ethernet cabling to exit the
enclosure. Instructions for performing this task are provided in the section “Creating

This method of mounting has not been evaluated by Underwriters

12 Meru Access Point and Radio Switch Installation Guide © 2007 Meru Networks, Inc.

Installation Requirements

NEMA box

s

Cable Pass-through Holes in the NEMA Enclosure” on page 25. To install in the
Hoffman/NEMA Enclosure, see the section “Hoffman/NEMA Enclosure RS4000 Instal­lation” on page 25.

Attach to wall with 4 screw

00187

Figure 5: Open NEMA Box Showing Mounting Holes

Optimum Antenna Positioning and Placement

Warning!

cm. (~ 8 in.) from all users and bystanders. For the protection of personnel working
in the vicinity of inside (downlink) antennas, the following guidelines for minimum
distances between the human body and the antenna must be observed.

The installation of the indoor antenna must be such that, under normal conditions,
all personnel cannot come within 20 cm. (~ 8.0 in.) from any inside antenna.
Exceeding this minimum separation will ensure that the employee or bystander does
not receive RF-exposure beyond the Maximum Permissible Exposure according to FCC
CFR 47, section 1.1310 i.e. limits for General Population/Uncontrolled Exposure.

Inside antennas must be positioned to observe minimum separation of 20

© 2007 Meru Networks, Inc. Installing the RS4000 13

Installing the RS4000

Installing the RS4000

Mounting the RS4000

You can mount the RS400 in the following ways:

z Wall Mounting the RS4000

z Mounting Below a Suspended Ceiling

z Mounting Above a Suspended Ceiling

z Placing and Positioning the Antenna

z Hoffman/NEMA Enclosure RS4000 Installation

Wall Mounting the RS4000

The RS4000 can be mounted to any type of solid wall (including ceiling walls) using
the supplied wall mount bracket. The bracket also allows for junction box mounting.

Note:

standard security cable (for example, Kensington cable locks), such as are used to
secure laptop computers.

To wall mount an RS4000:

1. Remove the bracket from back side the RS4000, if it is attached, by unscrewing

The RS4000 has a security cable slot so you can secure the RS4000 with a

each of the 4 knurled thumbscrews (see Figure 6).

14 Meru Access Point and Radio Switch Installation Guide © 2007 Meru Networks, Inc.

Installing the RS4000

Figure 6: Bracket Attached to RS4000

2. Choose the location on the wall where the RS4000 will be mounted. The RS4000
can be oriented in any direction, but it is probably more convenient if the SMA
antenna mounts are at the top. This orientation is more convenient for reading
LED status.

3. Using the bracket holes as a template, mark the location on the wall for the two
RS4000 bracket mounting screws. They are placed 5 25/32" (147mm) apart,
center-to-center, one above the other. If you are not using plastic wall anchors,
you must center the mounting screws on a wall stud.

Note:

The RS4000 mounting bracket provides holes to accommodate many types of
common installations such as over a junction box, etc. This procedure describes only
the standard wall mount.

4. Drill holes at the locations you marked:

— 3/16-inch holes if you are using plastic anchors
— 1/8-inch holes if you are using only the screws

5. If you are using plastic anchors, install them in the holes.

© 2007 Meru Networks, Inc. Installing the RS4000 15

Installing the RS4000

Wall mounting bracket

6. Screw in the screws most of the way, so that the screw head is about 1/16 of an
inch from the wall.

7. Mount the bracket on the screws, placing the circular portion of the keyhole
mounts over the screw heads and sliding the bracket down.

(attached to wall)

Captive screws (4)

RS4000

POWER
RADIO I
RADIO II

ETHERNET

00186

Figure 7: RS4000 Bracket Mounting

8. Tighten the bracket captive screws to secure the RS4000 to the bracket.

9. On the RS4000, attach the two antenna cables to the SMA antenna connectors

16 Meru Access Point and Radio Switch Installation Guide © 2007 Meru Networks, Inc.

the cable ends clockwise until tight.

labeled

ANT1 and ANT2 on the top panel of the RS4000 (see Figure 8) by turning

(Meru logo is upside down)

Installing the RS4000

ANT1 ANT2

ETH1

ETH2

00182

ANT1

ANT2

K

Figure 8: RS4000 with Antenna Attached

10. Attach at least one Ethernet cable to the Ethernet port labeled
optionally to

ETH2 on the top panel of the RS4000. If just ETH1 is connected, only

ETH1 and

two of the four radios will be active.

11. Align the RS4000 to the bracket (against the wall) and tighten the four knurled
thumbscrews until secure. If necessary, apply extra tightening with pliers.

12. Attach the antenna cables to the antenna, as described in “Placing and
Positioning the Antenna.”

13. Connect the two Ethernet cables to the PoE device.

14. Apply power to the PoE component and network switch to power up the RS4000.

15. Verify correct operating using the LEDs, as shown in “Checking LED Activity.”

© 2007 Meru Networks, Inc. Installing the RS4000 17