RE: Automating PC via X10

["Steve Morgan" <steve@xxxxxxx>]

As a follow-up suggestion, you could make up an adaptor that would fit
between the serial port and a connected serial device that worked in this
way, so you needn't lose a port, as long as that device doesn't use the RI
pin itself.

i.e. wire up a straight-through extension cable with pins 1-8 connected
directly. Now, connect your 12v PSU between pins 5 and 9 at the PC end.

Steve
P.S. There's a potential flaw with this Wake-on-Modem scheme that I've
outlined. The CM12U uses the RI pin to signal a received X-10 signal. If
this is connected to a port that has Wake-on-Modem enabled, the PC will
wake
up for _any_ X-10 activity on the power line! Probably not what's intended.

-----Original Message-----
From: Steve Morgan [mailto:steve@xxxxxxx]
Sent: 09 July 2001 11:53
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Automating PC via X10


If your PC supports Wake-up-on-Modem, you should be able to rig up a
connection to a serial port that toggles the RI (Ring In) pin. IIRC, RI is
active-high, so you want to switch a 12v DC signal across pin 5 (Gnd) and
pin 9 (RI). If you use a regulated wall-wart, you should be able to use a
standard appliance module.

Hope that helps.

Steve



-----Original Message-----
From: Jeff [mailto:ukha@xxxxxxx]
Sent: 09 July 2001 09:04
To: ukha_d
Subject: [ukha_d] Automating PC via X10



I've a PC i'd like to automate with X10 but the catch is it has an ATX
motherboard and a bios that won't override the powerswitch.

I had though of locking the powerswitch on but that just powers the machine
on and 5 seconds later off again.

Any suggestions ?

Jeff




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Automated Home UK
http://www.automatedhome.co.uk
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Your use of Yahoo! Groups is subject t  http://docs.yahoo.com/info/terms/