4G Systems MTX-1 MeshCube / AccessCube

The “MeshCube” (MTX-1) was one of the first extensible Wireless hardware built with “mesh routing” and community support in mind. “AccessCube” was the commercial marketing term for exactly the same hardware. Later a “singleboard” variant was sold by T-Systems as “Internet Box”. Allthough the HW is not produced any more, a few “cubes” keep running in community networks, especially Berlin. Supported since OpenWrt Kamikaze under the OpenWrt target au1000 https://dev.openwrt.org/wiki/au1000

One of the outstanding features of the MeshCube is the support of up to eight (8) MiniPCI (WLAN) cards. By default it comes with two MiniPCI slots.

See generic.flashing.tftp.

We need a TFTP Server on a PC. On the MeshCube you connect the Serial port, and enter YAMON bootloader. First we need to erase the flash:

YAMON> setenv ipaddr FREE_IP.IN.YOUR.NET
YAMON> setenv bootserver IP.OF.YOUR.TFTP_SERVER
YAMON> erase 0xbfd00000 0xf0000
YAMON> erase -s

Then we can load the kernel and filesystem:

load /openwrt-au1000-au1500-vmlinux-flash.srec
load /openwrt-au1000-au1500-jffs2-128k.srec

The MeshCube has a Serial and JTAG connector at the front, just above the power plug. See → port.serial and → port.jtag for general information about the JTAG/serial port, cables, etc.

The following serial port settings are used:

The Serial/JTAG Port has the following pin-out, as seen from the front:

The pins are assigned like this:

The “T-Mobile Internet Box” has a 24 pin connector between the Ethernet port and the MiniPCI card and above the 4G Logo with the following pinout, as seen with the 4G logo readable:

• http://www.linux-mips.org/wiki/Mtx-1
• http://download.berlin.freifunk.net/meshcube.org/meshwiki/