Modular communication system having self-identifying modules

Details Modular communication system having self-identifying modules Modular communication system having self-identifying modules

H - Electricity

04

M

354/227

H04M 1/24 (2006.01)

Patent

CA 1078522

Abstract of the Disclosure Trunk and line circuits packaged as modules are provided with circuitry for generating self-identifying type-code information which is retrievable on request by the central control unit of the system. The received information is compared with the type-code information contained in the data memory of the central control unit. Upon non-correlation between the received and the stored type-code information, an alarm signal is generated. In the described embodiment, the type-code information generating circuitry on each board comprises a voltage level source individual of the type of board and an analog to digital converter circuit associated with the board. - i -

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