Cisco Meraki MR42 Manual de instalação

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MR42 Installation Guide

The Cisco Meraki MR42 is a dual-band enterprise class 802.11ac cloud-managed access point. Designed for high capacity and high density, the

MR42 meets the needs of the most demanding environments, and also includes the first ever cloud-managed third radio dedicated to

optimizing the RF environment and securing the airwaves.

About this Guide

This guide provides instruction on how to install and configure your MR42 access points. This guide also provides mounting instructions and

limited troubleshooting procedures. For more wireless installation guides, refer to the

website.

Product Overview

Physical Specifications

Interfaces

1x 10/100/1000 BASE-T Ethernet (RJ45)

1x DC power connector (5.5 mm x 2.5 mm, center positive)

Power

Power over Ethernet: 37 - 57 V (802.3at required with functionality-restricted

802.3af mode supported)

Alternative: 12 V DC input

Power consumption: 20W max (802.3at)

Power over Ethernet injector and DC adapter sold separately

Environment

Operating temperature: 32 °F to 104 °F (0 °C to 40 °C)

Storage and Transportation Temperature: -4 °F to 158 °F (-20 °C to 70 °C)

Humidity: 5 to 95% non-condensing

Physical Security

Two security screw options (included) (10 mm long and 2.5 mm diameter and

4.7 mm head)

Kensington lock hard point

Concealed mount plate with anti-tamper cable bay

Product View and Physical Features

Your Meraki MR42 has the following features:

The mount cradle has the following features:

Security Features

The MR42 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 cradle. 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.

Ethernet Ports

The MR42 features a Gigabit Ethernet RJ45 port that accepts 802.3at and 802.3af power (labeled "Eth0, PoE"). This port should be used for

uplink to your WAN connection.

The port labeled "PoE" accepts 802.3at and 802.3af power and should be used as the primary uplink to your LAN/WAN.

Power Source Options

The MR42 access point can be powered using either the Meraki AC Adapter, PoE Injector (both sold separately), or a third-party PoE switch.

The MR42 will function in low power mode when powered by a 802.3af power source. While in low power mode, the MR42 will disable

its Air Marshal radio as well as two out of three transmit streams on the 2.4 Ghz band. Despite being in low power mode, the device can

still supply full 802.11ac capabilities.

Factory Reset Button

If the button is pressed and held for at least ﬁve seconds and then released, the MR42 will reboot and be restored to its original factory

settings by deleting all conﬁguration information stored on the unit.

LED Indicators and Run Dark Mode

Your MR42 is equipped with a multi-color LED light on the front of the unit to convey information about system functionality and performance:

Orange - AP is booting (permanent Orange suggests hardware issue)

Rainbow - AP is initializing/scanning

Blinking Blue - AP is upgrading

Green - AP in Gateway mode with no clients

Blue - AP in Gateway mode with clients

Blinking Orange - AP can't find uplink

NOTE: Blinking Green LED indicates that the device is in site survey mode. Please see the Conducting Site Surveys with MR Access

Points for more details.

The MR42 may be operated in "Run Dark" mode for additional security and to reduce the visibility of the access point. In this mode, the LED will

not be illuminated. This mode may be enabled through Meraki dashboard.

Package Contents

The MR42 package contains the following:

MR42 Cloud-Managed Access Point

Mount cradle including built-in level tool

Drop ceiling mount kit

Wall screws, wall screw anchors, and security screws

Spare hardware

Safety and Warnings

These operations are to be taken with respect to all local laws. Please take the following into consideration for safe operation:

Power off the unit before you begin. Read the installation instructions before connecting the system to the power source.

Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for

preventing accidents.

Read the wall-mounting instructions carefully before beginning installation. Failure to use the correct hardware or to follow the correct

procedures could result in a hazardous situation to people and damage to the system.

This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not

greater than: 15 A, 125 Vac, or 10A, 240 Vac.

Please only power the device with the provided power cables or standard PoE to ensure regulatory compliance.

Pre-Install Preparation

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

Conﬁgure Your Network in Dashboard

The following is a brief overview only of the steps required to add an MR42 to your network. For detailed instructions about creating,

conﬁguring and managing Meraki wireless networks, refer to the online documentation (documentation.meraki.com).

1. Login to http://dashboard.meraki.com. If this is your ﬁrst 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) 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 license key, which you should have

received via email.

4. Go to the map / ﬂoor plan view and place each AP on the map by clicking and dragging it to the location where you plan to mount it.

Check and Upgrade Firmware

To ensure your MR42 performs optimally immediately following installation, it is recommended that you facilitate a ﬁrmware upgrade prior to

mounting your MR42.

1. Attach your MR42 to power and a wired Internet connection. See the "Power the MR42" section for details.

2. The MR42 will turn on and the LED will glow solid orange. If the unit does not require a ﬁrmware upgrade, the LED will turn either green

(no clients associated) or blue (clients associated) within thirty seconds.

* If the unit requires an upgrade, the LED will begin blinking orange until the upgrade is complete, at which point the LED will turn solid green

or blue. You should allow at least a few minutes for the ﬁrmware upgrade to complete, depending on the speed of your internet connection.

Check and Conﬁgure Firewall Settings

If a ﬁrewall 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 for your particular organization can be found here.

Assigning IP Addresses to MR42s

All gateway MR42s (MR42s with Ethernet connections to the LAN) must be assigned routable IP addresses. These IP addresses can be

dynamically assigned via DHCP or statically assigned.

Dynamic Assignment

When using DHCP, the DHCP server should be conﬁgured 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.

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 wirelessly (by associating to any SSID broadcast by the AP).

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 "Uplink Conﬁguration" tab. Log in. The default login is the serial number (e.g. Qxxx-xxxx-xxxx), with no

password (e.g., Q2DD-551C-ZYW3).

4. Conﬁgure 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.

Static IP via DHCP Reservations

Instead of associating to each Meraki AP individually to conﬁgure 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 conﬁgure DHCP reservations.

Collect Tools

You will need the following tools to perform an installation:

Collect Additional Hardware for Installation

You will need the following hardware to perform an installation:

Installation Instructions

Choose Your Mounting Location

A good mounting location is important to getting the best performance out of your MR42 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 ofﬁce ﬁlled 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 MR42 should have line of sight to at least two other Meraki devices. A Cisco Partner can help

ensure that your AP placement is ideal.

Install the MR42

For most mounting scenarios, the MR42 mount cradle provides a quick, simple, and ﬂexible means of mounting your device. The installation

should be done in two steps. First, install the mount cradle to your selected location. Then, attach the MR42 to the mount cradle.

Attach the mount cradle

The MR42 mount cradle 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.

The mount cradle contains a variety of hole patterns that are customized for each installation scenario. The mounting template (included inbox

with mount cradle) should be used to drill holes for wall mounts and also to identify the correct hole patterns in the mount cradle that should be

used for each type of mount. The included mount cradle template shows the hole patterns that should be used for each type of mount.

Wall or Solid Ceiling Mount Using mount cradle

Using included wall anchors and screws, attach the mount cradle to your mounting wall or ceiling. It is recommended that the MR42 be

mounted to a wall or solid ceiling using the mount cradle for physical security reasons.

Drop ceiling mount using mount cradle

To mount your MR42 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. The kit contains:

Drop ceiling mounting clips with set screws

6-32x4 mm screws

6-32x7 mm screws only used for recessed rail mount (uncommon)

2 rubber spacers

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.

2. Using the dashed lines on the mount cradle template as a guide, set the proper spacing of the T-rail clips on the T-rail.

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

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

Tip: Pre-assemble rubber spacers and screws to the mount cradle. The mount cradle can then be held with one hand while the other

hand holds a screwdriver. If mounting your MR42 to a dropped ceiling, skip to the "Power the MR42" section.

Electrical Junction Box Mount Using mount cradle

The MR42 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 cradle to the junction box.

Power the MR42

If mounting to an electrical junction box, feed the Ethernet cable through the cable access hole in the mount cradle. If mounting to a wall or

ceiling, the Ethernet cable will feed from behind the MR42. The

options and their unique characteristics.

Mount the MR42

Attach the MR42 to the Mount Cradle

(This section applies to wall and/or solid ceiling, drop ceiling or electrical junction box mount

where you have already installed the mount cradle.)

The MR42 attaches to the mount cradle with two tabs on the cradle that insert into the MR42, and is secured to the cradle using one screw.

To attach the MR42 to the mount cradle properly, line up the top edge of the AP with the top tab of the mount cradle. Since the cradle is

already mounted to the wall, guide the MR42 towards the top tab and insert the top tab into the MR42's slot.

Then adjust the MR42 to guide the MR42's bottom slot into the cradle's bottom tab until it clicks into place. Once in place, the MR42 should be

secured to the cradle by using one of the included screws in the cradle's bottom tab.

To release the MR42 from the mount cradle, first remove the security screw that secures the MR42 to the cradle's bottom tab. While holding the

MR42 with one hand, press the cradle's bottom tab upwards, releasing the MR42 from the bottom of the cradle. Then remove the MR42 from

the cradle's top tab.

Desk or Shelf Mount

The MR42 can be placed on a desk or shelf resting on the non-scratch rubber feet. The mount cradle is not necessary for a desk or shelf

installation.

Secure the MR42

Depending on your mounting environment, you may want to secure the MR42 to its mount location. Your MR42 can be secured in several

ways. If the MR42 has been installed using the mount cradle, it should be secured via security screw (Torx security screws are included) and/or

Kensington lock. If the mount cradle was not used, the MR42 can still be secured using a Kensington lock.

Security Screw

Install the security screw in the lower mount cradle tab.

Kensington Lock

Attach a Kensington lock cable to the access point at the hard point on the side of the device.

Attach the other end of the cable to a secure location, such as a pipe or building ﬁxture.

Verify Device Functionality and Test Network Coverage

1. Check LEDs

a. The Power LED should be solid green (or blue, if clients are connected). If it is ﬂashing blue, the ﬁrmware is automatically upgrading

and the LED should turn green when the upgrade is completed (normally within a few minutes). See the

more details. .

b. Note: Your MR42 must have an active route to the Internet to check and upgrade its ﬁrmware.

2. Verify access point connectivity

a. Use any 802.11 client device to connect to the MR42 and verify proper connectivity using the client's web browser.

3. Check network coverage

4. Conﬁrm that you have good signal strength throughout your coverage area. You can use the signal strength meter on a laptop, smart

phone, or other wireless device.

Basic Troubleshooting

The following steps can be used for troubleshooting basic connectivity issues with your access point.

Reset the access point

Factory reset the access point by holding the factory reset button for 5 seconds

Try switching cables, or testing your cable on another device

If your access point still does not connect, the following instructions may be useful, depending on your issue.

Check Radio Functionality by Making the AP a Repeater

1. If your AP is acting as a gateway, disconnect the Ethernet cable from the LAN (while keeping the AP powered on). This will switch your AP

into repeater mode. If no other gateways are within range, the AP will begin broadcasting an SSID appended with "-scanning". If you are

able to connect to this SSID and go to my.meraki.com from your web browser, then your radio is working.

2. Physically place the repeater AP (AP with disconnected LAN) next to a working gateway AP.

3. Connect the power adapter or PoE. The radio and signal strength LEDs on the AP will turn solid green or blue once the access point boots

up and detects the gateway.

4. The access point is now a repeater and will check into Dashboard.

5. On dashboard under monitor and access points you will see the connectivity bar for the specific Repeater AP reflecting a light green color,

which means the AP is a repeater. Gateway APs will reflect a dark green color in the connectivity bar and also will have the letter G

(Gateway) on top of the AP symbol.

Check Ethernet Port Functionality by Connecting to the AP

1. Disable the Wireless adapter on your computer.

2. Make sure the Ethernet adapter on your device is set to obtain an IP address automatically via DHCP.

3. Connect your computer to the Ethernet port on the AP with an Ethernet cable.

4. The Ethernet LED on the AP should turn solid green or blue.

5. If the Ethernet LED does not turn solid green or blue, try swapping the cable. If the Ethernet port still does not turn green or blue, try the

second Ethernet port, if the AP has one.

6. If the Ethernet LED does not turn solid green or blue, you may have a bad port on the AP. If this is the case, the AP signal LEDs will

continue to scan.

7. Once the Ethernet LED turns solid green or blue, your computer should obtain an IP address from the AP via DHCP.

Check Static IP Address Configuration

1. If the AP has a static IP address, the green signal LEDs will begin to flash on and off and you will not receive an IP address via DHCP.

2. Disconnect the Ethernet cable from the AP.

3. Associate to the SSID being broadcasted by the AP. If there are no other APs in the network within range the SSID may be appended with

"-scanning".

4. Go to my.meraki.com in your web browser.

5. The MAC address on the back of the access point should match the physical address value on the my.meraki.com Overview page.

6. Once you have verified that the MAC address is correct on the overview tab, click the tab Static IP configuration.

7. Enter the username (serial number on the back of the AP) which is case sensitive and must include the dashes. (There is no password).

8. Make sure your AP is set to obtain a correct DHCP or static IP address configuration from your network.

Reference

https://documentation.meraki.com/MR

If you are still experiencing hardware issues, please contact Cisco Meraki support by logging in to dashboard and using the Help option near

the top of the page, then opening and email case or calling using the contact information on that page.

Warranty

MR Warranty coverage periods are as follows:

Indoor MR 42 AP Lifetime Applies to MR device and ethernet cables in box

Note: The above table is a general guideline for warranty terms and is not final. Warranty terms are subject to printed warranty information on

the relevant online Meraki data sheets.

If your Cisco Meraki device fails and the problem cannot be resolved by troubleshooting, contact support to address the issue. Once support

determines that the device is in a failed state, they can process an RMA and send out a replacement device free of charge. In most

circumstances, the RMA will include a pre-paid shipping label so the faulty equipment can be returned.

In order to initiate a hardware replacement for non-functioning hardware that is under warranty, you must have access to the original

packaging the hardware was shipped in. The original hardware packaging includes device serial number and order information, and

may be required for return shipping.

Meraki MR42 devices have been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC

rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This

equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,

may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular

installation.

Additional warranty information can be found on:

Support and Additional Information

If issues are encountered with device installation or additional help is required, contact Meraki Support by logging in

to dashboard.meraki.com and opening a case by visiting the Get Help section.

The equipment is intended for industrial or other commercial activities.

The equipment is used in areas without exposure to harmful and dangerous production factors, unless otherwise specified in the

operational documentation and/or on the equipment labeling.

The equipment is not for domestic use. The equipment is intended for operation without the constant presence of maintenance personnel.

The equipment is subject to installation and maintenance by specialists with the appropriate qualifications, sufficient specialized

knowledge, and skills.

Rules and conditions for the sale of equipment are determined by the terms of contracts concluded by Cisco or authorized Cisco partners

with equipment buyers.

Disposal of a technical device at the end of its service life should be carried out in accordance with the requirements of all state

regulations and laws.

Do not throw in the device with household waste. The technical equipment is subject to storage and disposal in accordance with the

organization's disposal procedure.

The equipment should be stored in its original packaging in a room protected from atmospheric precipitation. The permissible temperature

and humidity ranges during storage are specified in the Operation (Installation) Manual.

Transportation of equipment should be carried out in the original packaging in covered vehicles by any means of transport. The

temperature and humidity during transportation must comply with the permissible established ranges of temperature and humidity during

storage (in the off state) specified in the Operation Manual (Installation)

For additional information on Meraki hardware and for other installation guides, please refer to documentation.meraki.com.

MR42

"Power Source

for additional information and troubleshooting tips.

https://meraki.cisco.com/support#process:warranty

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