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Billion 7800N

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Revision as of 17:23, 1 November 2011 by Roseway (talk | contribs)
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Billion BiPac 7800N

This ADSL router has 4 normal gigabit ethernet ports and an EWAN port which enables it to be used as a cable router. It has a wireless-N interface and a robust SPI firewall.

It uses a Broadcom BCM6358 ADSL chip, and the firmware supports some features which are not available in lesser routers:-

- PhyR impulse noise protection


- IPv6 support

- The target noise margin can be adjusted in the web interface, using a hidden page

- Comprehensive information and control via the telnet interface

PhyR impulse noise protection

PhyR (pronounced 'fire') is a unique Broadcom technology which improves the router's ability to hold a connection under conditions of high impulse noise. Unfortunately it depends on the DSLAM/MSAN in the exchange also being a Broadcom model, so is not generally useful to every user.


(Description to be added)

IPv6 support

Full support for the IPv6 protocol is provided in firmware version 1.06d and later. At the time of writing (Nov 2011) the latest version is 1.06e:

Tweaking the target noise margin

From the web interface, go to the hidden page . Enter the required value in the box and click Save. The router will drop the connection and reconnect with the new noise margin. The values which you enter increase or decrease the current target noise margin (set in the exchange) by the following approximate amounts:

  • 200 = +6dB
  • 150 = +3dB
  • 100 = +0dB
  • 50 = -3dB
  • 25 = -4.5db
  • 1 = -5.5dB