Universal Remote DMS-100 Especificaciones descargar pdf (Pagina 25)

DMS-100 ringing overview 1-9

DMS-100 Family DMS-100 Ringing System BASE15 and up

Note: Available frequencies are 20 Hz, 30 Hz, 40 Hz, 50 Hz, and 60 Hz.

Any four of these, in any order, can be assigned to frequencies A through D.

Superimposed ringing

Superimposed ringing is a form of selective ringing which uses a positive or

negative biased 20 Hz ringing signal and polarizing devices, such as gas tubes,

at the receiving end for full or semi-ringer selection. In the fully selective

conﬁguration, a maximum of four parties can be connected to one line, with

two on the tip side and two on the ring side.

The ringer connections of the fully selective ringing scheme is illustrated in the

following ﬁgure.

Figure 1-7 Fully selective ringer conﬁguration - superimposed ringing

On both the tip and ring side, the ringer of one party is polarized for a

positive-biased ringing signal, while the ringer of the other party is polarized

for a negative-biased signal. A positive-biased ringing signal applied to the tip

side, for example, rings only the party on the tip side with the positive-biased

ringer.

In the semi-selective conﬁguration, a maximum of eight parties can be

connected to one line, with four on the tip side and four on the ring side. On

each side, two ringers are polarized for a positive-biased ringing signal, while

the other two are polarized for a negative-biased ringing signal. A

positive-biased ringing signal applied to the tip side, for example, in the

semi-selective conﬁguration, rings only the two parties with ringers polarized

for a positive ringing signal. Because two parties ring simultaneously, a single

ring (code 1) and a 2-ring (code 2) ringing scheme is used to distinguish

between the two parties.

Negative-biasedringersPositive-biasedringers

Tip

Ring

Ringer 2 Ringer 4Ringer 1 Ringer 3

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 133 134

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Universal Remote DMS-100 Especificaciones Pagina 25