Meraki MR24 Hardware Installation Manual

Meraki MR24

Hardware Installation Guide

Trademarks

Meraki, Meraki MR24, Meraki Cloud Controller, and Meraki Mesh are trademarks of Meraki, Inc.

Other brand and product names are registered trademarks or trademarks of their respective holders.

Statement of Conditions

In the interest of improving internal design, operational function, and/or reliability, Meraki reserves the right to make

changes to the products described in this document without notice. Meraki does not assume any liability that may

occur due to the use or application of the product(s) or circult layout(s) described herein.

Warranty

Meraki, Inc. provides a lifetime warranty on this product. Warranty details may be found at www.meraki.com/legal.

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Table of Contents

1 Scope of Document and Related Publications 4

2 MR24 Overview 5

2.1 Package Contents 5

2.2 Understanding the MR24 5

2.3 Security Features 7

2.4 Ethernet Ports 7

2.5 Power Source Options 7

2.6 Factory Reset Button 7

2.7 LED Indicators and Run Dark Mode 7

2.8 UL 2043 Plenum rating 8

3 Pre-Install Preparation 8

3.1 Conﬁ gure Your Network in Dashboard 8

3.2 Check and Upgrade Firmware 8

3.3 Check and Conﬁ gure Firewall Settings 8

3.4 Assigning IP Addresses to MR24s 9

3.4.1 Dynamic Assignment 9

3.4.2 Static Assignment 9

3.4.3 Static IP Assignment via DHCP Reservations 9

3.5 Collect Tools 10

3.6 Collect Additional Hardware for Installation 10

4 Installation Instructions 11

4.1 Choose Your Mounting Location 11

4.2 Install the MR24 11

4.2.1 Attach the Mount Plate 11

4.2.1.1 Wall or Solid Ceiling Mount Using Mount Plate 13

4.2.1.2 Drop Ceiling Mount Using Mount Plate 14

4.2.1.3 Electrical Junction Box Mount Using Mount Plate 18

4.2.1.4 Plenum Mount (Above Drop Ceiling) 19

4.2.2 Power the MR24 20

4.2.2.1 Powering the MR24 with Meraki AC Adapter 21

4.2.2.2 Powering the MR24 with Meraki 802.3af Power over Ethernet Injector 21

4.2.2.3 Powering the MR24 with an 802.3af Power over Ethernet Switch 22

4.2.3 Mount the MR24 22

4.2.3.1 Assemble Security Hasp to the MR24 22

4.2.3.2 Assemble MR24 to the Mount Plate 23

4.2.3.3 Desk or Shelf Mount 25

4.2.3.4 Wall or Solid Ceiling Mount without Mount Plate 25

4.3 Secure the MR24 26

4.3.1 Security Screw 26

4.3.2 Pad Lock 26

4.3.2 Kensington Lock 26

4.4 Verify Device Functionality and Test Network Coverage 27

5 Troubleshooting 27

6 Regulatory Information for MR24 28

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1 Scope of Document and Related Publications

The MR24 Hardware Installation Guide describes the installation procedure for the MR24 access point.

Additional reference documents are available online at www.meraki.com/library/product.

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MR24 access point Drop ceiling mounting kit

2 MR24 Overview

The Meraki MR24 is an enterprise-class, dual-concurrent 3x3 MIMO 802.11n access point designed for high-

density deployments in ofﬁ ces, schools, hospitals and hotels. When connected to the Meraki Cloud Controller,

the MR24 enables the creation of ultra-high speed, reliable indoor wireless networks quickly, easily and cost-

effectively.

2.1 Package Contents

The MR24 package contains the following:

2.2 Understanding the MR24

Your Meraki MR24 has the following features:

Kensington lock

hard point

Spare hardware kitSecurity hasp kitSecurity screws

Wall screws

& anchors

LED indicators

Mounting Template

Mounting plate

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Cable slot

Security tab

Your MR24 mount plate has the following features:

MR24 cable access bay

Mount plate attachment

slots (2x)

Access point

mounting posts (2x)

Desk mount feet (4x)

Cable routing slot

Cable access bay

AC Adapter plug

Ethernet 0 port (10/100/1000)

Factory Reset Button

Various mounting holes

(see p. 13-14 for details)

AP alignment features

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2.3 Security Features

The MR24 features multiple options for physically securing the access point after installation:

1. Security screw – The accessory kit includes screws that can be used to secure the access point to

the mount plate. Engaging the security screw prevents accidental dislodging and theft.

2. Kensington lock – The access point contains a hard point that allows it to be secured to any nearby

permanent structure using a standard Kensington lock.

2.4 Ethernet Ports

The MR24 features a Gigabit Ethernet RJ45 port that accepts 802.3af power (labeled “Eth0, PoE”). This port

should be used for uplink to your WAN connection.

2.5 Power Source Options

The MR24 access point can be powered using either the Meraki AC Adapter or 802.3af PoE Injector (both sold

separately) or a third-party 802.3af PoE switch.

2.6 Factory Reset Button

If the button is pressed and held for at least ﬁ ve seconds and then released, the MR24 will reboot and be

restored to its original factory settings by deleting all conﬁ guration information stored on the unit.

2.7 LED Indicators and Run Dark Mode

Your MR24 is equipped with a series of LED lights on the front of the unit to convey information about

system functionality and performance.

The MR24 may be operated in “Run Dark” mode for additional security and to reduce the visibility of the access

point. In this mode, the LEDs will not be illuminated. This mode may be enabled through Meraki Dashboard.

Signal Strength

One Light: Fair

Four Lights: Strongest

Moving Lights: Searching for signal

Flashing Lights: Error state. May indicate bad gateway or other routing fault

Radio Power

Off: MR24 is off

Solid Orange: MR24 is booting or trying to ﬁ nd a path to the internet

Solid Green: MR24 is fully operational and connected to the network

Flashing Orange: Firmware is upgrading

Flashing Green: Error state. May indicate bad gateway or other routing fault

Ethernet

Off: No active network connection at the Ethernet port

On: Active network connection at the Ethernet port

Flashing: Error state. May indicate bad gateway or other routing fault

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2.8 UL 2043 Plenum rating

The MR24 meets the UL 2043 plenum-rating standard. This certiﬁ es that the MR24 has adequate ﬁ re resistance

and low smoke-emission characteristics to be mounted and operated in a building’s environmental air spaces,

such as above suspended ceilings in an ofﬁ ce environment.

3 Pre-Install Preparation

You should complete the following steps before going on-site to perform an installation.

3.1 Conﬁ gure Your Network in Dashboard

The following is a brief overview only of the steps required to add an MR24 to your network. For detailed

instructions about creating, conﬁ guring and managing Meraki wireless networks, refer to the Meraki Cloud

Controller Manual (meraki.com/library/product).

1. Login to http://dashboard.meraki.com. If this is your ﬁ rst time, create a new account.

2. Find the network to which you plan to add your APs or create a new network.

3. Add your APs to your network. You will need your Meraki order number (found on your invoice if you

ordered directly from Meraki) or the serial number of each AP, which looks like Qxxx-xxxx-xxxx, and is

found on the bottom of the unit. You will also need your Enterprise Cloud Controller license key, which you

should have received via email from [email protected].

4. Go to the map / ﬂ oor plan view and place each AP on the map by clicking and dragging it to the location

where you plan to mount it.

3.2 Check and Upgrade Firmware

To ensure your MR24 performs optimally immediately following installation, Meraki recommends that you

facilitate a ﬁ rmware upgrade prior to mounting your MR24.

1. Attach your MR24 to power and a wired Internet connection. See p. 19 of this Hardware Installation

Guide for details.

2. The MR24 will turn on and the Power LED will glow solid orange. If the unit does not require a ﬁ rmware

upgrade, the Power LED will turn green within thirty seconds.

* If the unit requires an upgrade, the Power LED will begin blinking orange until the upgrade is complete,

at which point the Power LED will turn solid green. You should allow about an hour for the ﬁ rmware

upgrade to complete, depending on the speed of your internet connection.

3.3 Check and Conﬁ gure Firewall Settings

If a ﬁ rewall is in place, it must allow outgoing connections on particular ports to particular IP addresses.

The most current list of outbound ports and IP addresses can be found here:

http://tinyurl.com/y79une3

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3.4 Assigning IP Addresses to MR24s

All gateway MR24s (MR24s with Ethernet connections to the LAN) must be assigned routable IP addresses.

These IP addresses can be dynamically assigned via DHCP or statically assigned.

3.4.1 Dynamic Assignment

When using DHCP, the DHCP server should be conﬁ gured to assign a static IP address for each MAC address

belonging to a Meraki AP. Other features of the wireless network such as 802.1x authentication, may rely on the

property that the APs have static IP addresses.

3.4.2 Static Assignment

Static IPs are assigned using the local web server on each AP. The following procedure describes how to set

the static IP:

1. Using a client machine (e.g. a laptop), connect to the AP either wirelessly (by associating to any SSID

broadcast by the AP) or over a wired connection.

If using a wired connection, connect the client machine to the MR24 either through a PoE switch or a Meraki

PoE Injector. If using a PoE switch, plug an Ethernet cable into the MR24’s Ethernet jack, and the other end

into a PoE switch. Then connect the client machine over Ethernet cable to the PoE switch. If using a Meraki

PoE Injector, connect the MR24 to the “PoE” port of the Injector, and the client machine to the “LAN” port.

2. Using a web browser on the client machine, access the AP’s built-in web server by browsing to

http://my.meraki.com. Alternatively, browse to http://10.128.128.128.

3. Click on the “Static IP Conﬁ guration” tab. Log in. The default user name is “admin”. The default password is

the AP’s serial number, with hyphens included (e.g. Q2DD-551C-ZYW3).

4. Conﬁ gure the static IP address, net mask, gateway IP address and DNS servers that this AP will use on its

wired connection.

5. If necessary, reconnect the AP to the LAN.

3.4.3 Static IP via DHCP Reservations

Instead of associating to each Meraki AP individually to conﬁ gure static IP addresses, an administrator can assign

static IP addresses on the upstream DHCP server. Through “DHCP reservations”, IP addresses are “reserved” for the

MAC addresses of the Meraki APs. Please consult the documentation for the DHCP server to conﬁ gure DHCP

reservations.

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T8 Torx

screwdriver

Phillips

screwdriver

Hammer Drill with 1/4”

(6.3mm) bits

3.6 Collect Additional Hardware for Installation

802.3af PoE power source (either PoE

switch or Meraki 802.3af PoE Injector)

Network cables with RJ45 connectors long

enough for your particular mounting location

3.5 Collect Tools

You will need the following tools to perform an installation:

AC Adapter

or

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4 Installation Instructions

4.1 Choose Your Mounting Location

A good mounting location is important to getting the best performance out of your MR24 access point.

Keep the following in mind:

1. The device should have unobstructed line of sight to most coverage areas. For example, if installing

in an ofﬁ ce ﬁ lled with workspaces divided by mid-height cubicle walls, installing on the ceiling or high

on a wall would be ideal.

2. Power over Ethernet supports a maximum cable length of 300 ft (100 m).

3. If being used in a mesh deployment, the MR24 should have line of sight to at least two other Meraki

devices. For more detailed instructions regarding access point location selection, reference the Meraki

Network Design Guide (meraki.com/library/product).

4.2 Install the MR24

For most mounting scenarios, the MR24 mount plate provides a quick, simple, and ﬂ exible means of mounting

your device. The installation should be done in two steps. First, install the mount plate to your selected location.

Then, attach the MR24 to the mount plate.

4.2.1 Attach the Mount Plate

The MR24 mount plate can be used to install your access point in a wide range of scenarios: wall or solid

ceiling, below a drop ceiling, on various electrical junction boxes, or above a drop ceiling (in the plenum).

The mount plate contains a variety of hole patterns that are customized for each installation scenario. The

mounting template (included inbox with mount plate) should be used to drill holes for wall mounts and also to

identify the correct hole patterns in the mount plate that should be used for each type of mount.

The following images also show the hole patterns that should be used for each type of mount:

Wall Mount (if replacing MR14)

(Go to p.13)

Drop Ceiling (T-Rail) Mount

(Go to p.14)

Wall Mount (if replacing MR16)

(Go to p.13)

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3.5” Round Cable Junction Box

Mount (US style)

(Go to p.18)

Single-Gang Outlet Box

Mount (US style)

(Go to p.18)

Above Drop Ceiling Mount

(Box Hanger)

(Go to p.19)

4” Round Cable Junction Box

Mount (US style)

(Go to p.18)

4”Square Cable Junction Box

Mount (US style)

(Go to p.18)

European Outlet Box Mount

(Go to p.18)

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4.2.1.1 Wall or Solid Ceiling Mount Using Mount Plate

Using included wall anchors and screws, attach the mount plate to your mounting wall or ceiling.

It is recommended that the MR24 be mounted to a wall or solid ceiling using the mount plate for physical

security reasons.

If mounting your MR24 to a wall, skip to “Power the MR24“ on P. 20

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1. Attach the T-rail clips to the T-rail by rotating them and snapping them into place as shown.

The black foam pads should be compressed slightly after installation.

4.2.1.2 Drop Ceiling Mount Using Mount Plate

To mount your MR24 on a drop ceiling T-rail, use the included drop ceiling mounting accessory kit.

The accessory kit can be used to mount to most 9/16”, 15/16” or 1 ½” T-rails.

Dropped ceiling

mounting clips

with set screws

6-32x4 mm screws 6-32x7 mm screws

Only used for

recessed rail mount

(uncommon)

2 rubber spacers

Only used for

recessed rail mount

(uncommon)

The kit contains:

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3. Tighten the set screws on the T-rail clips to secure the clips using a 5/64”(2 mm) hex key.

2. Using the dashed lines on the mount plate template as a guide, set the proper spacing of the

T-rail clips on the T-rail

Set screws (x4)

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4. Attach the mount plate to the T-rail clips using the mount plate holes (marked with a “T“).

To select the correct set of mounting hardware to use, first determine whether you are

mounting to a “flush” or “recessed“ rail. (See below images for clarification)

Flush T-rail Recessed T-rail

T-rail ﬂ ush with tiles T-rail recessed from tiles

Ceiling tiles

T-rail

6-32-4” screws

Flush T-rail

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Rubber spacers

6-32-7” screws

Tip: Pre-assemble rubber spacers and screws to the mount plate. The mount plate can then

be held with one hand while the other hand holds a screwdriver.

If mounting your MR24 to a dropped ceiling, skip to “Power the MR24“ on p. 20

Recessed T-rail

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4.2.1.3 Electrical Junction Box Mount Using Mount Plate

The MR24 can be mounted to a 4” square cable junction box, a 3.5 or 4” round cable junction box, or

various U.S. and European outlet boxes (mounting screws are not included).

Using appropriate mounting hardware for your specific type of junction box, attach the mount plate to

the junction box.

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4.2.1.4 Plenum Mount (Above Drop Ceiling)

The MR24 can be mounted to the T-bar grid above the tiles of a drop ceiling using a 3rd party T-bar box hanger

(not included). The Erico Caddy 512A is recommended and is used in installation instruction illustrations.

Note: a UL2043-rated Ethernet cable should be used for a plenum installation.

1. Adjust the height of the T-bar box hanger crossbar to make sure there is adequate clearance between

the access point and the top of the ceiling tiles. Tighten the height adjusting screws.

2. Attach the bracket mounting clip (included with T-bar box hanger) to the center of the T-bar box hanger crossbar.

3. Attach the MR24 mount plate to the access point mounting bracket using a 6-32 screw, washer, and nut

(not included with T-bar box hanger) and the Above Drop Ceiling (Box Hanger) hole in the mount plate

(reference Mounting Template).

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1

3

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4.2.2 Power the MR24

If mounting to an electrical junction box, feed the Ethernet cable through the cable access hole in the Mount Plate:

If mounting to a wall or ceiling, the Ethernet cable will feed through the cable slot on bottom of the MR24.

Cable access hole

4. Securely attach the clips on either side of the T-bar box hanger to the suspended ceiling grid T-rails.

5. Connect a grounding wire (not included with T-bar box hanger) to the grounding hole in the bracket mounting clip

and to metal building structure. A grounding wire is required to comply with the U.S. National Electric Safety Code.

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Meraki MR24 Hardware Installation Manual

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