Cisco Meraki MR26

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abgn (AN900)
802.11n Dual-Radio Dual-Band Wireless Indoor Access Point
Wikipedia Cisco Systems
WikiDevi.wi-cat.ru Cisco Meraki MR26
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Status Unknown
Gargoyle Status Unknown
Platform
BrandModelRev Cisco Meraki MR26-HW
FCC ID (fcc.io) UDX-60027010
FCC ID (fcc.report) UDX-60027010
IC ID 6961A-60027010
Type managed access point
CPU1 checkY Broadcom BCM53015
CPU1 Type ARM Cortex-A9
CPU1 Speed 800 MHz ( 2 cores )
Flash1 Chip Spansion S34ML01G100TF100
Flash1 Size 128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (SLC NAND)
RAM1 Size 128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (DDR3 SDRAM)
RAM1 Chip SK hynix H5TQ1G63EFR-H9C
ETH chip1 Broadcom BCM53015
Ethernet Port Count 1-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: 00:18:0A (9 E, 7 W)
Ethernet OUI: 00:18:0A (9 E, 7 W)

Stock bootloader U-Boot 2012.10 00063-g83f9fe4
Stock FW OS Linux 3.4-r23
Expansion IF types none specified
PoE 802.3at, 802.3af, standard
Power 12 VDC, 1.5 A
Connector type barrel
5.5 mm (OD)
2.5 mm (ID)
9.5 mm (LEN)
Serial Port (UART) yes, 4-pin header, populated, 3.3V TTL, (115200 8N1), J3
JTAG Port yes, 20-pin header, unpopulated, J5

Additional chips
2.4GHz High Power Wireless LAN Power Amplifier;Skyworks;SE2604:;;3;
2.4GHz Low-Noise Amplifier;Skyworks;SKY65405-21;;3;
5GHz 23dbM Power Amplifier w/ Power Detector;Skyworks;SE5003L;;3;
0.5-6.0 GHz SPDT Switch;Skyworks;SKY13370-374LF;;3;
0.5-6.0 GHz SPDT Switch;Skyworks;SKY13377-324LF;;3;
802.3at PoE Interface and DC/DC Controller;TI;TPS23754;;1;
64-Kbit Serial I2C bus EEPROM;STMicro;24C64WP;;1;
3 Channel 16bit PWM Constant Current Driver;Numen Tech;NU801;;1;
2Kbit I2C Serial EEPROM w/ Security Register;Microchip;AT24CSW027;;1;
Zero Drift Bidirectional Current/Power Monitor w/ I2C IF;TI;INA219;;1;
N+1 and ORing Power Rail Controller;TI;TPS2412;;1;
30V 17A N-Channel MOSFET;SinoPower;SM4388;;1;
30V 23A N-Channel MOSFET;Alpha & Omega;AO4302;;1;
20V Dual P+N-Channel MOSFET;Alpha & Omega;AO4622;;2;
80V N-Channel/P-Channel Power MOSFET;Rohm;SH8M41;;4;
6V 3A Synchronous Step Down Converter;TI;TPS5432;;1;
17V 8A Synchronous Step Down Converter w/ Hiccup;TI;TPS54821;;1;
High Isolation Voltage Photocoupler;Renesas;PS2801-1;;2;
1-Channel Photocoupler;LiteOn;LTV-817;;1;

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Retail
Availability End of Life
End of Life date 09 May 2023
FCC approval date 29 January 2014
(Est.) release date March 2014
ASIN B00ISCJ382
Country of manuf Taiwan
Radio 1
Chip1 Broadcom BCM43431
Wireless interface OUI 00:18:0A
Antenna Connector Type U.FL
MIMO status 3x3:3
Wireless Standard IEEE 802.11b/g/n
802.11n up to 450 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 Broadcom BCM43431
Wireless interface OUI 00:18:0A
Antenna Connector Type U.FL
MIMO status 3x3:3
Wireless Standard IEEE 802.11a/n
802.11n up to 450 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
Radio 3
Chip1 Broadcom BCM43428
Wireless interface OUI 00:18:0A
Antenna Connector Type U.FL
MIMO status 1x1:1
Wireless Standard IEEE 802.11a/b/g/n
WiFi Operating Frequency 2.4 or 5 GHz

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

For a list of all currently documented Cisco devices with specifications, see Cisco.

450 Mbps - 3SS 5GHz 802.11n (40MHz chan.),
450 Mbps - 3SS 2.4GHz 802.11n (40MHz chan.) = AN900 class

Overview

Two dual-band 3x3 MIMO 802.11n radios and 1x1 dual-band WIFI dedicated to scanning

Hardware specification

  • CPU: Broadcom BCM53015A1 Dual-Core ARM (Cortex-A9) @800MHz
  • Memory: 128MB (DDR3) SDRAM
  • Storage: 128MB (SLC NAND) Flash
  • WiFi: 2x Broadcom BCM43431 802.11abgn (3x3:3)
Broadcom BCM43428 802.11abgn (1x1:1)
  • Network: 1x Gigabit Ethernet ports
  • Power: 12V, 1.5A via barrel or 802.3at PoE

Flashing

Flashing OpenWrt

Target: bcm53xx
Subtarget: generic
Package architecture: arm_cortex-a9
Supported Since Commit
Support started version: 23.05.0
Current supported version: 24.10.4
WLAN Hardware: Broadcom BCM43431KMLG, Broadcom BCM43428
Installation method(s):
see git-commit

This flashing procedure for the MR26 was tested with firmware:

   "22-143410M-gf25cbf5a-asa".
   U-Boot 2012.10-00063-g83f9fe4 (Jun 04 2014 - 21:22:39)

A guide how to open up the device is available on the wiki:

<https://openwrt.org/toh/meraki/mr26>

Notes:

- The WIFI do work to a degree. Limited to 802.11bg in the 2.4GHz band.
- the WIFI macs are made up.

0. Create a separate Ethernet LAN which can't have access to the internet.

  Ideally use 192.168.1.2 for your PC. The new OpenWrt firmware will setup
  the network via DHCP Discovery, so make sure your PC is running
  a DHCP-Server (i.e.: dnsmasq)
  '# dnsmasq -i eth# -F 192.168.1.5,192.168.1.50
  Download the openwrt-meraki-mr26 initramfs file from openwrt.org and
  rename it to something simple like mr26.bin. Then put it into the tftp's
  server directory.

1. Disassemble the MR26 device by removing all screws (4 screws are located

  under the 4 rubber feets!) and prying open the plastic covers without
  breaking the plastic retention clips. Once inside, remove the plastic
  back casing. Be careful, there some "hidden" retention clips on both
  sides of the LAN port, you need a light to see those. Next, you want to
  remove all the screws on the outer metal shielding to get to the PCB.
  It's not necessary to remove the antennas!

2. Connect the serial cable to the serial header and Ethernet patch cable

  to the device.

4. Before connecting the power, get ready flood the serial console program

  with the magic:   xyzzy  . This is necessary in order to get into the
  u-boot prompt. Once Ready: connect power cable.

5. If you don't get the "u-boot>" prompt within the first few seconds,

  you have to disconnect and reconnect the power cable and try again.

6. In the u-boot prompt enter:

  setenv ipaddr 192.168.1.4
  setenv serverip 192.168.1.2
  tftpboot ${meraki_loadaddr} mr26.bin; bootm
  this will boot a in-ram-only OpenWrt image.

7. Once it booted use sysupgrade to permanently install OpenWrt.

  To do this: Download the latest sysupgrade.bin file and move
  it to the device. Then use sysupgrade *sysupgrade.bin to install it.
   WARNING: DO NOT DELETE the "storage" ubi volume!

Pictures

User Images

See also