Cisco MERAKI MR42 User Manual

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 wireless
installation guides section on our documentation website.
Product Overview
Physical Specifications
MR42
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
1

Cisco MERAKI MR42 Specifications

General

Model	MR42
Category	Wireless Access Point
Manufacturer	Cisco Meraki
MIMO	3x3
Radio Frequency	2.4 GHz, 5 GHz
Radio Chains	3
MU-MIMO	Yes
Antennas	Internal
Mounting	Wall, Ceiling
Operating Temperature	0°C to 40°C
Wi-Fi Standards	802.11 a/b/g/n/ac
Power over Ethernet (PoE)	802.3af/at
Security	WPA2-Enterprise, WPA2-PSK, 802.1X

Summary

About This Guide

Product Overview and Specifications

Physical Specifications

Details interfaces, power options including PoE, and environmental operating conditions for the MR42.

Product View and Features

Highlights physical features, security points like Kensington lock, and LED indicators for system status.

Package Contents

Safety and Installation Preparation

Safety and Warnings

Provides essential safety precautions and warnings for handling and installing the MR42 access point.

Pre-Install Preparation

Outlines necessary steps and tools required before commencing the MR42 installation on-site.

Network Configuration and Firmware

Configure Network in Dashboard

Guides on adding the MR42 to a network, updating firmware, and configuring firewall settings.

IP Address Assignment

Explains dynamic (DHCP) and static IP address assignment methods for the MR42 access points.

Installation Procedures

Mounting Location and Cradle Installation

Instructions on choosing a mounting location and attaching the MR42 mount cradle to various surfaces.

Mounting Methods

Details for drop ceiling, wall, solid ceiling, and electrical junction box mounting using the cradle.

Attaching MR42 to Cradle

Steps for securely attaching the MR42 access point to its installed mount cradle.

Desk or Shelf Mounting

Verification and Troubleshooting

Device Verification

Procedures to check LED status, verify network connectivity, and test coverage.

Basic Troubleshooting Steps

Common troubleshooting methods including resets, cable checks, and IP configuration verification.

Warranty Information

Support and Additional Information