Wireless Devices:FritzBox3070

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FritzBox3070 1.JPG


Hardware Interfaces

  • Back
    • RJ-11 socket DSL
    • USB-B socket
    • 4 RJ-54 sockets (Ethernet 10/100 Base-T)
    • USB-A socket
    • Power button
    • Power socket
    • WLAN button
  • Front
    • 5 diodes: "Power", "LAN", "WLAN", "DSL", "INFO"

Serial Port

Pin layout:

  • VCC (3.3V)
  • RX
  • TX
  • GND

The 3.3 Volt pin is the one next to the Atheros miniPCI card. Speed is 38400 bits per second.

Chips

The enclosure can be opened by pressing the brackets with a slotted screwdriver towards the device.

Broadband Chip: TNETD7300A7DW (aka AR7)

Switch Controller: Infineon ADM6996L

Ethernet Pulse Transformer: UE40ST1041AX-U LF

VLYNQ to USB Bridge: TNETV115PAP

Flash Memory: MX29LV320C (4 MByte)

SDRAM Memory: Qimonda/Infineon HYB39SC256160FE-7 (32 MByte)

WiFi Card: Texas Instruments TNETW1130 (aka ACX111) in MiniPCI-like slot

Changing the Firmware

The development branch of OpenWRT experimentally supports AR7 devices. OpenWRT has been successfully installed on a Fritz!Box SL. The 3070 might require a different flash memory layout.

Changing the memory layout

Original memory layout:

mtd0 0x90000000 0x90000000
mtd1 0x90010000 0x903c0000
mtd2 0x90000000 0x90010000
mtd3 0x903c0000 0x903e0000
mtd4 0x903e0000 0x90400000

Links

Fritz!Box Wiki
OpenWRT auf Fritz!Box SL
AR7-Port von OpenWRT
OpenWRT auf Fritz!Box Fon
Speicherlayout Fritz!Box