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



On Tuesday, December 28, 2021 at 7:55:36 PM UTC-8, ABLE1 wrote:
> On 12/28/2021 9:52 PM, Bager2700 wrote:=20
> > On Tuesday, December 28, 2021 at 6:30:04 PM UTC-8, ABLE1 wrote:=20
> >> On 12/28/2021 6:00 PM, Bob La Londe wrote:=20
> >>> On 12/28/2021 2:25 PM, Bager2700 wrote:=20
> >>>> Hey I know 4/2 protocol is older than the days, however I am looking=
=20
> >>>> for the specs for the timing of the protocol.=20
> >>>>=20
> >>>> AKA from Dialer going on line to waiting for station receiver online=
=20
> >>>> panel data tone bursts --- ACK -- kissoff etc.=20
> >>>>=20
> >>>> Although the timing is fairly flexible i would like to know the=20
> >>>> actual specs for the sequence and timing.=20
> >>>>=20
> >>>> I have the SIA, Contact ID, FSK, etc but 4/2 formats i have not foun=
d=20
> >>>> information.=20
> >>>> Does anyone have the info?=20
> >>>> Thanks inadvance=20
> >>>>=20
> >>>>=20
> >>>=20
> >>>=20
> >>> Best guess? Whatever the acceptable timing is between digits for puls=
e=20
> >>> telephone dialing. Really. That's where it comes from. Its also why=
=20
> >>> pulse format is so slow compared it CID or other single tone/digit fo=
rmats.=20
> >>>=20
> >> Hi Bob, Not even gonna hint you are wrong!! No way!!!!=20
> >> But, what I will say is that if Bager2700 hasn't already Googled Pulse=
=20
> >> Dialing AKA "Rotary Dial" the answer is as follows.=20
> >>=20
> >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=20
> >> Within the Bell System the dial pulse period is nominally one-tenth of=
 a=20
> >> second long, permitting a rate of 10 pulses per second. Modern=20
> >> telephones are now wired for push-button dialing (see below), but even=
=20
> >> they can usually generate pulse signals when the push-button pad is=20
> >> operated in conjunction with electronic timing circuits.=20
> >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=20
> >>=20
> >> Have a good rest of the week!!!!=20
> >>=20
> >> Les=20
> > Hey guys it not, the pulse dialing (make/break ratio) specs that I am l=
ooking for but the 4/2 protocol ... so communicator goes on line and comple=
tes it dialing via DTMF or Pulse. Then waits for the Central station RX to =
come online with its format tones. How long will the 4/2 wait for this, how=
 many milliseconds are the data bursts and timing of the data.=20
> >=20
> > so ONLINE-<wait how long?> <CS, tones approx 750ms><communicator data b=
ursts time?>< no pulse time?><next data> then finally <kissoff approx 750ms=
> <communications completed.>=20
> > The mystery is what the actual specification are for the 4/2 data forma=
t?=20
> >=20
> > Hope that all make sense?
> Dear Bager2700,=20
>=20
> Please understand that we here are/were Alarm Dealer/Installers. We=20
> just have to properly connect the phone line thru a RJ-31X block,=20
> program the panel with the proper phone number for the Central Station=20
> Receiver, Enter the proper Account Number for the Customer in the proper=
=20
> fields and save it. Then trip a zone and check the Test History for the=
=20
> Receiver and all is good. I never cared about what you are asking.=20
> That being said, I did a little Google and found the following.=20
>=20
> https://www.patriotsystems.com/p65library/4X2Format.html=20
>=20
> That may get you a little closer. Beyond that I am at a loss.=20
>=20
> Good Luck!!=20
>=20
> Les
Thanks Les ,  finding info on the new formats SIA, FSK, IP, Contact ID, is =
so easy but when we are talking before internet, and fax machines, kinda th=
e old voice dialer days  with the circular recorder tape (that is a whole o=
ther subject) The 4/2 - 3/1 was a massive upgrade, we are going old school =
and the info, while just seems to be missing.


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