[AusNOG] dial-up modem with 48v DC power option?

[Daniel O'Connor]

On Sat, 6 Sep 2008, Matthew Moyle-Croft wrote:
> Charles Wyble wrote:
> > So I'm not quite sure what good a modem would do.
>
> A PSTN line is most likely to work in even trying circumstances - in
> a lot of locations you need PSTN to get DSL anyway.   If you're at a
> point where you've lost all normal connectivity to a POP then you
> don't want to have to worry about the state of a DSL line - you want
> to be able to dial in, work out if it's hardware or a provider issue,
> maybe use your power systems to reboot equipment etc.  Given that all
> our gear is manageable over 9600bps serial connections - why add the
> complexity of DSL?

The other option would be a GSM/3G modem.

You can definitely get industrial GSM modems, although I've never used 
one. eg http://www.paqworks.com.au/index.php?id=11&product_id=112

There is more to  go wrong with GSM/3G but there is redundancy (if 
you're in town anyway).

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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