View source for ADSL2MUE

Linksys ADSL2MUE is an ADSL2/2+ capable router/modem based on the Texas Instruments [[AR7]] architecture. Marketed in the United Kingdom, France, Australia, Germany and a few other countries not including the United States of America.

'''If you are looking for a modem this might not be what you are looking for. Although advertised as a modem, it is actually a router with some sort of bridging capabilities.'''

== Hardware resources ==
Based on Texas Instruments [[AR7]] architecture it includes a few other chips on board, such as ethernet and ADSL transformers. TI does not provide with much information about the architecture and answers with a "this is for OEM eyes only" when asked for more information.

This device provides ADSL, ethernet and USB conectivity only.

* Ethernet: One on-chip fast ethernet 10/100 port attached to a transformer from Delta Electronics labeled [http://www.delta.com.tw/product/cp/telecom/telecom_product3.asp?pcid=2&psid=1&ptid=2&ssid=1 LF8505 DELTA 0448W]).
* USB: One USB 1.1 port.
* ADSL: One on-chip adsl port attached to an ADSL2 transformer from Linkcomm Manufacturing labeled [http://www.linkcom-co.com/english/products/prd_list.asp?cateid=97 LAL0671 LINKCOM 0450]. Advertised explicitly as AR7 compatible.
* On-board RAM memory: One chip of synchronous SDRAM formatted as 1Mx32x4bank module makeing up 128Mbit (16Mbytes) of RAM space. Manufactured by Glink and labeled as [http://www.glink.com.tw/glinkeng/pdf/GLT51280L16-R0.4.pdf GLT51280L16-6TC 412 9P3030902].
* On-board Flash memory: Four MBytes of memory on a single chip from Macronix Incorporated. Its part numbers is MX29LV320ABTC-90G and the chip is labeled as MX E042469 29LV320ABTC-90G 2K085800A1 TAIWAN.
* Microcontroller: Texas Instruments AR7RD labeled TNETD7300AGDW 49ZND69 with uilt-in ADSL and Ethernet interfaces.
* Serial ports: Two serial ports. One of them used as system console at 38400,8,N,1. Another unused.

=== Further info from software commands ===
 cli> product-info 
 GLOBAL: Product Info command
 
 Product Information:
 ----------------------
 Model Number:                             AR7RD
 HW Revision:                            Unknown
 Serial Number:                             none
 USB PID:                                 0x000f
 USB VID:                                 0x13b1
 Ethernet MAC:                               N/A
 DSL MAC:                                    N/A
 USB MAC:                                    N/A
 USB Host MAC:                               N/A
 Software Versions:
 ------------------
 Gateway:                                  3.5.0
 ATM Driver:                         4.02.11.00 
 
 DSL HAL:                            3.01.02.00
 
 DSL Datapump:                3.01.02.00 Annex A
 SAR HAL:                              01.07.02
 
 PDSP Firmware:                            0.49 
 
 Boot loader:                            1.2.0.4
 cli> shell
 Starting /bin/sh
 Type exit to return to the CLI
 
 
 BusyBox v0.61.pre (2004.10.19-18:15+0000) Built-in shell (ash)
 Enter 'help' for a list of built-in commands.
 
 # cat proc/tty/driver/serial 
 serinfo:1.0 driver:5.05c revision:2001-07-08
 0: uart:16550A port:A8610E00 irq:15 baud:2258 tx:15520 rx:323 RTS|DTR
 1: uart:16550A port:A8610F00 irq:16 tx:0 rx:0 RTS|DTR
 # cat proc/ticfg/env 
 bootloaderVersion       1.2.0.4
 ProductID       AR7RD
 HWRevision      Unknown
 SerialNumber    none
 MEMSZ   0x01000000
 FLASHSZ 0x00400000
 CPUFREQ 150000000
 SYSFREQ 125000000
 IPA     192.168.1.1
 MODETTY0        38400,n,8,1,hw
 MODETTY1        38400,n,8,1,hw
 MAC_PORT        0
 mtd0    0x900a0000,0x90400000
 mtd1    0x90020000,0x900a0000
 mtd2    0x90000000,0x90010000
 mtd3    0x90010000,0x90020000
 autoload        1
 BOOTCFG m:f:"mtd1"
 USB_VID 0x0451
 USB_PID 0x6060
 HWA_RNDIS       00:E0:A6:66:41:EB
 HWA_HRNDIS      00:E0:A6:66:41:E1
 usb_vid 0x13b1
 usb_pid 0x000f
 usb_prod        Linksys RNDIS Network Adapter
 connection0     0
 HWA_0   00:12:17:79:8C:D8
 PROMPT  (psbl)
 #

=== Console port ===
 __________________________________________ 
 |                                         |
 |                    Pin 4: GND   ----> @ |
 |                    Pin 3: TX    ----> @ |
 |                    Pin 2: RX    ----> @ |
 |           Pin 1: Not connected  ----> @ |
 |                                         |              Front of ADSL2MUE
 |                                         |
 |                                         led
 |                                         led
 |                                         led
 |                                         led
 |                                         led
 |_________________________________________|

The console is located on the same edge that the leds are, that is, front-right side of the board. It is labeled J1 and an arrow points to pin 1 on the left, that is, the closest pin to the leds. Voltage reference is 3.3 volts and it is set by default at 38400,8,N,1. Mine already had a connector soldered just like to ones we usually see on computer boards as CPU/NB fan connector.

== Software resources ==
This firmware is based on the [[Distributions#MontaVista|MontaVista]] Linux.

 Linux version 2.4.17_mvl21-malta-mips_fp_le (root@mandrake.nctu.edu.tw)
 (gcc version 2.95.3 20010315 (release/MontaVista)) #49 Thu Sep 9 18:13:08 EDT 2004

''' CPU + Memory '''

 # cat /proc/cpuinfo
 processor               : 0
 cpu model               : MIPS 4KEc V4.8
 BogoMIPS                : 149.91
 wait instruction        : no
 microsecond timers      : yes
 extra interrupt vector  : yes
 hardware watchpoint     : yes
 VCED exceptions         : not available
 VCEI exceptions         : not available

Partially GPL'd software can be downloaded from the UK office of Linkys at the GPL link show at the [http://www.linksys.com/servlet/Satellite?childpagename=US%2FLayout&packedargs=c%3DL_Content_C1%26cid%3D1115416836002&pagename=Linksys%2FCommon%2FVisitorWrapper Linksys GPL code center].

As many AR7 based devices do, Linksys ADSL2MUE violates GPL license because only partial sources are released. Visit [http://gpl-violations.org GPL Violations web site] for more information on this.

== Software features ==
With the default oficial firmware this device has four modes of operation:
# Router with PPPoA over the WAN
# Router with PPPoE over the WAN
# Router with RFC1483 bridged over the WAN
# Bridge with RFC1483 bridged over the WAN

All three router modes NAT support is fair enough for outgoing purposes but will not let you do any port forwarding to the inside.

The only modem capabilities the device shows is called brige mode. This mode interconnects a native ethernet network or an ethernet over USB network with a RFC1484 bridge mode network (ethernet switched over ATM/ADSL).