Cisco Meraki MR42E Bedienungsanleitung

MR42E Installation Guide

The Cisco Meraki MR42E is a dual-band enterprise class 802.11ac cloud-managed access point with support for

external antennas. Designed for high capacity and high density, the MR42E meets the needs of the most demanding

environments. The access point also includes a third radio dedicated to optimizing the RF environment and securing the

airwaves along with a BLE radio for supporting IoT applications.

Package Contents

The MR42E package contains the following:

• MR42E 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

Understanding the MR42E

Your Meraki MR42E has the following features:

The mount cradle has the following features:

Security Features

The MR42E 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. ensington lock – The access point contains a hard point that allows it to be secured to any nearby permanent

structure using a standard ensington lock.

External Antenna Ports

The MR42E has 5 external antenna ports:

The ports labeled 2.4/5 is meant for client serving radios

The port labeled Scan is meant for scanning wireless channels

The port labeled IoT is meant for BLE applications

Ethernet Ports

The MR42E 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.

Power Source Options

The MR42E access point can be powered using either the Meraki AC Adapter, PoE Injector (both sold separately), or a

third-party PoE switch.

The MR42E will function in low power mode when powered by a 802.3af power source. While in low power mode, the

MR42E 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 MR42E 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 MR42E 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

The MR42E 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.

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 MR42E 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 MR42E performs optimally immediately following installation, it is recommended that you facilitate a

ﬁrmware upgrade prior to mounting your MR42E.

1. Attach your MR42E to power and a wired Internet connection. See the "Power the MR42E" section for details.

2. The MR42E 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 MR42Es

All gateway MR42Es (MR42Es 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) or over a wired connection.

2. If using a wired connection, connect the client machine to the MR42E either through a PoE switch or a

PoE Injector. If using a PoE switch, plug an Ethernet cable into the MR42E’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 PoE Injector, connect the MR42E to the “PoE” port of the Injector, and the client machine to the

“LAN” port.

3. 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.

4. 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).

5. Conﬁgure the static IP address, net mask, gateway IP address and DNS servers that this AP will use on

its wired connection.

6. 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 MR42E access point. eep the

following in mind:

1. The antenna attached to the access point 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 MR42E 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 MR42E

For most mounting scenarios, the MR42E 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 MR42E to the mount cradle.

Attach the mount cradle

The MR42E 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 MR42E 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 MR42E 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.

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