> From: [email protected]
> Received: from bos1g.delphi.com by world.std.com (5.65c/Spike-2.0)
> Subject: Re: Poland Standards
> [In response to the request from Tom Steele, Penril]
>
> Tom,
>
> I'm not sure which country variant is the basis of your
> Polish modem but, there are a number of additional
> considerations you should not over look. As some of the
> answers have already been provided I will just confirm the
> parameters that I know to be correct and that I've got
> product approved to.
>
> 1. Loop Current : 17 - 55 mAdc (<600 ohm)
>
> 2. Ring Cadence: 1s ON - 1s OFF
>
> 3. Dial Tone
> Valid DT Frequencies : 325 to 660 Hz
> Min. Dial Level : -50 dBm
> Min. Valid Tone : 550 ms
> Max. DT Drop Out: 1 ms
>
> 4. Dialing Parameters
> Mode : Pulse or Pulse & DTMF
>
> Loop Dis. (Pulse) :-
> Frequency : 10 Hz +/- 5%
> Break/Make: 2:1 (66:33)
> Current : <0.4 mA (60V/1000ohm Supply)
> Voltage : <10 V (I=17mA)
> Interdigit
> Pause : 800 to 1000 ms
>
> DTMF :-
> Frequency : As per CCITT Q.23
> Tolerance : +/- 1.5 %
> Power(Low): -8 dBm +/- 1.5 dB
> (Hign Grp): -6 dBm +/- 1.5 dB
> Cadence : >70ms ON & >70ms OFF
>
> Compliance with CCITT K.21 is also a must, where the
> overvoltage limits are 2kV using the 10/700 (micro sec.)
> pulse shape. Another overload test is also applied which is
> 60Vdc superimposed by 100V/50Hz.
>
> Should you require professional assistance in meeting the
> type approval requirements throughout Eastern Europe and
> the CIS (Former Soviet Union), then please feel free to
> contact me directly.
>
> Best regards,
>
> Edward Fitzgerald
>
> GSM : +44-4685-33-100
> Internet : [email protected]
> X.400 : G=Edward; S=Fitzgerald; A=400net; P=itu; C=ch
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