Universal Remote DMS-100 Especificaciones descargar pdf (Pagina 21)

DMS-100 ringing overview 1-5

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

For example, in the following ﬁgure, ringing is enabled on the LCE, the ﬁrst

ringing burst applies at the beginning of time slot 1 and continues to the end of

time slot 4. The initial ringing burst is 2 s.

ANI and coin functions

The DMS-100 ringing bus also provides voltages for ANI and coin functions.

The ANI and coin voltages include:

• +48 V

• -48 V

• +130 V

• -130 V

Types of ringing

The DMS-100 switch supports the following types of ringing:

• frequency selective ringing

• superimposed ringing

• coded ringing

• distinctive ringing

• teen ringing

• Japan ringing

Each ringing type is described in the paragraphs that follow.

Frequency selective ringing

Frequency selective ringing is used for service to single party, 2-party, and

multiparty up to eight parties. In the frequency selective scheme, each ringer

on the line is tuned to a speciﬁc ringing signal frequency. When a subscriber is

called, the DMS-100 switch applies to the line the ringing signal where the

called subscriber's ringer is tuned. The called subscriber's ringer, which is

tuned to the applied ringing signal, rings. The remaining ringers on the line,

which are not tuned to the applied ringing signal, reject the ringing signal and

remain silent.

Note: Revertive ringing is not supported for FSR lines.

Revertive calls from FSR lines are permitted. The originator of the revertive

call receives a treatment, either a tone or an announcement, indicating the call

is placed to another party on the same line. The terminating party also receives

a treatment. When both parties are off-hook, the talk path is established.

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Universal Remote DMS-100 Especificaciones Pagina 21