[Coco] An X-10 usage for the Direct Connect Modem Pak

[George Ramsower]

  I'm thinking that maybe the 6551 may be the origin of the data sent on 
the phone line. The modem chip, IIRC, only takes the inputs and sends 
the modulated data. If it's online and not connected to another 
computer, perhaps the 6551 only sends the CTS/RTS data via those two 
lines and the modem sends that data? The only way that modem is on or 
off line is through the switch that connects it to the phone line. This 
implies that the modem chip is ALWAYS generating and expecting to 
receive a tone.
  I'll have to look for my org manual and look at the schematic. I 
haven't looked at that thing for many years and therefore, I'm only 
going on faded memory.
  However, I'm thinking you may be correct. I just had no idea about 
this part. But, if you are correct, this could be one possibility for 
many apps that can use a phone line to close a relay at a remote location.
George R.

On 8/17/2015 8:38 PM, K. Pruitt wrote:
> Unless I am inadvertently sending the signal out via another device 
> which I can't really see happening. But now I'm wondering.
>
> Let me do further testing here. Eliminate some hardware from the mix.
>
> ----- Original Message ----- From: "George Ramsower" <georgera at gvtc.com>
> To: <coco at maltedmedia.com>
> Sent: Monday, August 17, 2015 5:59 PM
> Subject: Re: [Coco] An X-10 usage for the Direct Connect Modem Pak
>
>
>>  I'll be dipped. I knew the DC Modem Pak was dumb but I had no idea 
>> it was that stupid ;-)
>>  Now I need to look around for a DC Modem pak I have somewhere to see 
>> what I can do with it.
>> George R.
>>
>> On 8/17/2015 7:11 PM, K. Pruitt wrote:
>>> I used the cable from a CM11A controller. It has a phone line style 
>>> connector on one end and a female DB-9 connector on the other end.
>>> I have it set to answer mode (though I don't think it makes a 
>>> difference) and I have the connect button turned on.
>>>
>>> The CM17A module which it is plugged in to also has a female DB-9 
>>> connector, so I stuck a male-to-male adapter in between the two 
>>> female connectors.
>>>
>>> Seems to work fine.
>>>