Telefon vonali szabvanyok

[VFX]

Hali!

> Regisztraltattam magam, a keresovel rakerestem a switching, signaling, ringing,
> powersupply kulcsszavakra, es sikerult nehany olyan leirast talalni, amiben
> reszben benne voltak az altalam keresett adatok pontos ertekei.
> Egyedul a csengetesi jel amplitudojara nem talaltam eloirast.
> 

Amit en toltottem le abban csak ez volt (Hungary nincs benne, vajon
miert :)


1.7.9 Ringing signal
The following frequencies and levels are presented at the PSTN CP for
ringing signal:
f 1 - minimum frequency;
f 2 - maximum frequency;
V 1 - minimum voltage;
V 2 - maximum voltage;
Cadence - on/off.

Table 1.7.9: Frequencies and voltages for ringing signal
VALUES
COUNTRY f 1 f 2 V 1 V 2 cadence Remarks
(Hz) (Hz) (V) (V) (s)
Austria 40 60 under study 66 1/5 ± 20% yes
Belgium 23 27 75 90 1/3 yes
Cyprus 23,5 26,5 25 85 1,5/3 yes
Denmark 22,5 27,5 40 120 0,75/7,5 ± 20% yes
Finland 22 28 35 82,5 1/4 yes
France 48 52 25 V/2 kW 90 1,5/3,5 ± 10%
Germany 23 54 45 75 1/4 or 5 ± 10% yes
Greece 16 50 25 90 1/4
Iceland 22 28 30 90 1,2/4,7
Ireland 17 or 25 40 75 0,4/0,2/0,4/2 yes
Italy 20 50 26 80 1/4 ± 10%
Luxembourg 25 55 75 1/4 or 5 ± 10%
Malta
Netherlands 23 27 35 90 0,75 - 1,25/3,5 - 4,5 yes
Norway 22 28 28 90 1/4 yes
Portugal 15 30 30 120 1 ± 20%/5 ± 20%
Spain 20 30 65 90 1,5/3 yes
Sweden 25 ± 3 50 ± 1 64 100 1/5 yes
Switzerland 25 ± 3 50 ± 5 25 90 1 ± 0,2/4 +2
-0,5
yes
U. Kingdom 16 2 / 3 + 5% 25 + 5% 63 100 0,4/0,2, 0,4/2,0
-13% -13%
yes
1.7.9 (A) 1 During the ringing condition (ringing + pause) the
dc-voltage superimposed to
the ac is between 20...64 V.
1.7.9 (B) 1 The values given in the table are related to the generator
in the public exchange
office.
1.7.9 (CY) 1 The nominal frequency is 25 Hz.

Ez bizony eleg valtozatos.

UDV. VFX.