ARMTEL ARMT.665200.003UM, User Manual

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DCN-2 CENTRAL EXCHANGE
User Manual
page
6/44 armtel.com
© Armtel info@armtel.com
ENG
expanded frequency bandwidth from 0,3 to 7 kHz is used in operation with the subscriber
devices manufactured by Armtel LLC.
DCN-2 provides the following functions incorporated into DCN digital intercom
system:

switching of digital communication channels between E1 streams used for
access to subscriber devices and other exchanges of ISDN network;

establishing two-way voice communication between subscriber devices;
 capability of individual call to any subscriber;

capability of subscribers group call;

individual announcements to subscribers by PA;
 free numbering of subscribers;

prioritized order of subscribers calling with the possibility of arbitrary
assignment of connection priorities;

playback of pre-recorded sound fragments from speech memory to both a
single subscriber and a group of subscribers;

playback of pre-recorded sound fragments: manual, scheduled, automatic when
the "dry contact" is closed or by MODBUS command;

interaction with the backup module of the DCN-2 Central Exchange to ensure
the automatic connection of the DCN-2 backup central exchange instead of the
faulty one in case of an accident in the DCN-2 Central Exchange;
 connection of two or more DCN central exchanges into the unified
communication system;

connection of external ATSs to DCN communication system via ISDN PRI lines;

local and remote monitoring (via IP network), diagnostics, and configuration of
the central exchange unit and subscriber devices connected to it.
A detailed description of DCN-2 functional area and device programming practice are
given in document RMLT.465275.002 «DCN Communication System. User Manual. Part 2.
Administrator Manual».