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DCN-2 Central exchange is a compact central exchange unit of the Armtel digital Intercom and PA/GA communication systems DCN. The DCN-2 central exchange is equipped with 1 to 4 of 4E1 interface boards, each provides the four E1 line interfaces. For each E1 line of the DCN-2 exchange, connection of subscribers unit for 15 digital or analogue interfaces, another DCN exchange, or use it as an ISDN PRI line to communicate with an external PBX. Thus, the maximum capacity of the DCN-2 exchange is determined by the number of 4E1 modules installed and can be up to 240 subscribers.
DCN-2 is a compact central exchange unit of the Armtel digital Intercom and PA/GA communication systems DCN. DCN-2 central exchange unit is equipped with 1 to 4 of 4E1 interface boards, each provides the four E1 line interfaces. For each E1 line of the DCN-2 Central exchange, connection of subscribers unit for 15 digital or analogue interfaces, another DCN exchange, or use it as an ISDN PRI line to communicate with an external PBX. Thus, the maximum capacity of the DCN-2 Central exchange is determined by the number of 4E1 modules installed and can be up to 240 subscribers.
