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Re: 4/2 4/1 Timing Protocol Spefications wanted (Alarm protocols)



On 12/28/2021 4:00 PM, Bob La Londe wrote:
> On 12/28/2021 2:25 PM, Bager2700 wrote:
>> Hey I know 4/2 protocol is older than the days, however I am looking
>> for the specs for the timing of the protocol.
>>
>> AKA  from Dialer going on line to waiting for station receiver online
>> panel data tone bursts --- ACK -- kissoff etc.
>>
>> Although the timing is fairly flexible  i would like to know the
>> actual specs for the sequence and timing.
>>
>> I have the SIA, Contact ID, FSK, etc but 4/2 formats i have not found
>> information.
>> Does anyone have the info?
>> Thanks inadvance
>>
>>
>
>
> Best guess?  Whatever the acceptable timing is between digits for pulse
> telephone dialing.  Really.  That's where it comes from.  Its also why
> pulse format is so slow compared it CID or other single tone/digit formats.
>



(See now if I am wrong somebody will jump on to correct me.  You are
welcome.)

Best way to get answers on the Internet/Usenet.  Post the wrong answer.
  LOL.

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