[App_rpt-users] Allstar parallel port (was source of USB CM108 FOBs - CHEAP)

[K&R Yoksh]

Geez, sorry to waste your time with a reply, Jim. Do you already know how to 
use Google?http://ohnosec.org/drupal/node/17773,KyleK0KN--- Original 
Message --- I already know how to build a simple transistor switch....

How do you set up Asterisk to use the parallel port? What commands where?


73
Jim W7RY

On 2/8/2014 1:34 PM, K&R Yoksh wrote:
> Hello Andrew,
>
> In case George doesn't have anything written up for parallel port
> operation:
> http://www.qsl.net/k0kn/plri.html
>
> There are several circuits detailed here, from the simplest discrete
> transistor type, to a transistor IC type that can support multiple
> radios.
>
> You can also use an off-the-shelf IRLP board, should you have one
> laying around. The DTMF decoder is not supported by Asterisk (Asterisk
> uses DSP techniques to decode DTMF), so I dropped the MT8870 from my
> schematics.
>
> At it's simplest, all you'd really need is one NPN transistor for PTT
> (active high from parallel port, active low to activate PTT), and one
> PNP transistor for COS (if active high from radio). If your radio uses
> active low COS, I'd buffer with two transistors (PNP to NPN), rather
> than directly connecting the radio to the PC.
>
> I'd suggest using active low at the parallel port inputs.
>
> 73 and good luck.
>
> Kyle
> K0KN
> Allstar 2210-2219
>
>
> --- Original Message ---
>
> Hello George,
>
> Do you have it documented anywhere how you configure the parallel port
> for
> COR and PTT? I'd love to see how you have it configured?
>
> Thanks!
>
> On Saturday, February 8, 2014, George Csahanin <george at dyb.com> wrote:
>
>>   I bought some CM108 fobs on EBAY for $0.99 each. He has a s***load of
>> them. Not knowing if they'd be real CM108 I waited till I got them to
>> send
>> this note. The USB ID is 08dc:000c the real thing.
>>
>> The last four nodes I built up use D945 motherboards which have parallel
>> ports, which I use for COS/PTT and the USB fob only does audio. No
>> need to
>> modify them for PTT and COS, etc.
>>
>> Anyhow, the EBAY auction is 300503465055 OR click this
>> link<http://www.ebay.com/itm/300503465055?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649>
>>
>> Seller's store is circle607. They're in Hong Kong. But the postage was
>> under $1.20 for all ten.
>>
>> I stocked up simply because they work so well, cost so little, and not
>> sure when they will stop being available. (hoarding 101)
>>
>> GeorgeC
>> W2DB
>> Allstar 2360
>
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