ASUS DSL-N55U

Overview
See also: ASUS DSL-N55U C1 • Product page (Ver. C1)



This device has two versions (same hardware components):
 * Annex A (A1 revision), Annex B (B1 revision)

The device has:
 * - Two processors, one for router part and the other for ADSL modem part;
 * - 8 MB flash for router part and 1 MB flash for modem part;
 * - 128 MB ram for router part and 2 MB ram for modem part;
 * - RP-SMA connectors.
 * - Two USB 2.0 ports, 1 Ampere max output per port.
 * - Capability to use a LAN port as WAN port.

Reviews

 * Review on ThinkBroadband
 * "RT4070AW-D61(RoHS)", "REV:3.0", and "Annex A"
 * is silkscreened on the board.
 * Flash: Macronix MX29LV640EB (8MB)
 * RAM: Winbond W9816G6IH-6 (2MB)

Spec. pages

 * On SpeedGuide.net
 * On direct.it (now a dead link...) Notes specs as
 * Ralink RT3662 (WiSoC 5GHz 2x3:2)
 * Ralink RT3092 (RFIC PCIe 2.4GHz 2x2:2)
 * TrendChip TC3162LEM (SoC ADSL)
 * Realtek RTL8367R (Gigabit Switch)

Forum threads

 * ASUS DSL-N55U First impressions on the NotebookReview forums
 * Asus dsl-n55u any good? on the whirlpool.net.au forums
 * Large post on the hwupgrade.it forums

Pictures
Asus Images 

Firmware
The stock firmware is AsusWRT, based on Linux 2.6.22.19.
 * The source code is available on the device's support page:
 * Annex A, Annex B

Thanks to Hardware Upgrade (italian forum thread)

Web UI hidden pages
- LAN Switch control: http://192.168.1.1/Advanced_SwitchCtrl_Content.asp

- Wireless Bridge: http://192.168.1.1/Advanced_WMode_Content.asp
 * Since firmware 3.0.0.4.374_1397 it is added in "Wireless" section, under "WDS" tab.

- Operation Mode: http://192.168.1.1/Advanced_OperationMode_Content.asp

- Command Console: http://192.168.1.1/Main_AdmStatus_Content.asp
 * Since firmware 3.0.0.4.374_4422 it does not work anymore.

Hidden telnet commands
- Downstream output power value, relative capacity occupation and carrier load:

- SNR table:

For more informations about this features visit ASUS DSL Settings FAQ

Custom firmware
There is a project of a custom firmware (AsusWRT-Bender) based on Merlin AsusWRT custom firmware:
 * https://github.com/matteocrippa/dsl-n55u-bender - Original development by Matteo Crippa, now discontinued;
 * https://github.com/IceMans/dsl-n55u-bender - Current development by IceMans.