FSKA MOUNTED IN ASCIR OF FULL ELECTRONIC EXCHANGE

摘要

PURPOSE: An FSKA(Frequency Shift Keying board Assembly) mounted in an ASCIR(Analog Subscriber Interface Control Rack) of a full electronic exchange is provided to be mounted on an LSI(Local Service Interface) block of the ASCIR, transmitting various tones, and providing a caller ID formed as an FSK(Frequency Shift Keying) signal capable of being recognized in a called side caller ID terminal. CONSTITUTION: The first main control unit(1) controls the transmission of various tones. The second main control unit(5) controls the transmission of an FSK signal according to a caller ID. The first tone transmitting unit(3) transmits various tones under the control of the first main control unit(1). The first tone detecting unit(4) detects various tones transmitted from a calling side and a response signal transmitted from a called side caller ID terminal, and reports the detected various tones and response signal to the first main control unit(1). An FSK tone transmitting/detecting unit(7) transmits a preliminary signal to the called side caller ID terminal under the second main control unit(5), generates the FSK signal to the caller ID, and transmits the generated FSK signal to the called caller ID terminal. The FSK tone transmitting/detecting unit(7) compares the FSK signal transmitted to the called side caller ID terminal with a loop-back FSK signal to judge whether a normal operation is executed and reports the judged result to the second main control unit(5). A TD-bus matching unit(9) matches the first main control unit(1) and the second main control unit(5) with a TLSP(Time Switch and Link Processor). A sub-highway matching unit(11) matches various tones outputted from the first tone transmitting unit(3) and the FSK signal outputted from the FSK tone transmitting/detecting unit(7) with the TLSP.