[c-nsp] Laptop USB-to-serial adapters - Break sequence?

[David Barak]

--- Jay Hennigan <jay at west.net> wrote:

> It seems that my trusty 1999-vintage laptop is on
> its last legs, and
> the phrase "RS-232 port" draws even blanker stares
> than normal from
> the salespeople at most computer stores.  Serial
> ports on laptops are
> becoming rather scarce.
> 
> One of the main things for which I use a laptop is
> field service of
> Cisco gear, which usually involves console access
> and occasionally
> the need for sending a break sequence.
> 
> Apparently the preferred method of dealing with this
> problem is the
> use ofa dongle that plugs into the laptop's USB port
> and provides a
> 9-pin serial plug.  There seem to be a plethora of
> these available
> at various prices.

The trick to send a break is to open a session at 1200
baud and hit the space bar a few times.  Close the
session, and then open a new one at 9600, and voila!
it's broken :)

That should work with any of the adapters as well.

-David


		
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