Universal Remote DMS-100 Especificaciones descargar pdf (Pagina 93)

Ringing in Series II peripherals 3-25

DMS-100 Ringing System

Figure 3-8 LCM ringing sequence diagram

DDMMSS--110000CCCCLLCCMM

Sends ringing request

message indicating line

to be rung

1 2

Ringing schedule task verifies request is directed to

valid line and channel is associated with line

Ringing schedule task sends request accepted

message (if required by DMS-100 CC)

Ringing schedule task copies ringing request

message into call data block associated with call

Ringing schedule task instructs supervisory tasks to

scan terminating line for answer

Timer notifies ringing schedule task of upcoming

time slot transition

Ringing schedule task determines length of next

time slot and starts timer for this length

Ringing schedule task examines ringing request

queue, determines which ringing requests require

state transition in next time slot, and initiates ringing

state machine for those requests

Ringing schedule task operates and releases ringing

relay on terminating line card through ringing

synchronization task

Ringing schedule task continues driving ringing

state machine

When called party answers, supervisory task notifies

ringing schedule task that called party has gone

off-hook

Ringing schedule task removes ringing request for

called party from ringing request queue

If line is ringing when off-hook is detected, ringing

schedule task instructs ringing synchronization task

to release ringing relay on line card of called party

LCM sends answer message to DMS-100 CC

DDMMSS--110000CCCC

Call enters talking state

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 133 134

Sin comentarios

Universal Remote DMS-100 Especificaciones Pagina 93