[mythtv-users] How can I change channels on a Cisco HD271 DTA (with TWC)?

[Hika van den Hoven]

Hoi Gary,

Thursday, June 11, 2015, 8:40:50 PM, you wrote:

> On Thu, Jun 11, 2015 at 4:47 PM, Ed Clark <eaclark at ameritech.net> wrote:
> ....
>> Being a bit of a noob, I'm looking for suggestions as to how
>> to determine what IR signals this remote is sending.

> Never seen one of the 271's, but most of these DTAs
> use the XMP protocol.  I suspect that one of the recent
> Cisco XMP definitions in lirc will likely work, or try the
> MotorolaDTA100-PaceDC50X one which worked on
> previous gen DTAs (and shares most of the same
> codes).

>> Furthermore, what I'd ideally like to do is run a audio patch cable
>> from the line out of the backend to the backend to the IR IN of
>> the DTA.  Then, hopefully, I'd just play the appropriate WAV file to
>> get the equivalent button press.  Thus skip using an IR blaster.
>> But, that may be a pipe dream...

> Likely a pipe dream.  IR bitrates are above the typical
> audio reproduction levels (30-70 kps) (and then the sampling
> multiplier for a wav file).
> .
> The typical solution is an ir blaster, and for the fancy,
> an appropriate cable between your blaster and the ir
> input on the DTA (for the paranoid, such as myself,
> with an optical isolation ic in the middle).  I seem to
> recall some being sold online, typically for TiVos, and
> for the build it yourself crowd, various examples are
> around.
> _______________________________________________

I have no experience with this, but my logical thinking would suggest
that you could leave out the ir part between the blaster and the DTA,
sending the electrical signal straight from your com port to the
IR-IN-jack. You off cause have to know the wiring and the protocol. You
then can load lirc-serial pretending there is a blaster connected.
Then if you give a send command to lirc the DTA wouldn't know the
difference.

Has anybody tried this?


Tot mails,
  Hika                            mailto:hikavdh at gmail.com

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Zonder leven is er geen hoop
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Zeker als je hoop moet vernietigen om te kunnen overleven!"

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