4 Penghubung Saluran FXO Modul Rt03405

RT03405 PSTN INTERFACE MODULES
Description:
RT03405 is A highly featured PSTN Interface (COIC, FXO, DAA, Trunk Interface) , Transformer isolation providing high common-mode rejection (CMRR) for use inun-grounded systems. use of anti-bell impingement circuit , you can make the system safe and reliable docking with various types of PBX.
RT03405 loop trunk interface circuit using a high impedance signal path, in the on-hook state, the circuit will automatically switch to the channel, to achieve the transmission of the audio signal in the on-hook state. The channel has minimal distortion, reliable detection of DTMF signals can hook state and FSK signal.
Features:
·4 channel Trunk Module
·Transformer isolation providing high common-mode rejection (CMRR) for use inun-grounded systems.
·Highly integrated with on-board loop switchand diode bridge.
·Loop start circuit, ringing detect and loopcurrent detection.
·+5V supply.
·Tip-ring polarity detect (for Caller Line IDand remote metering) and
·on-hook reception FSK DTMF for Caller Line I.D. or for telemetry purposes.
·High performance with low price
·Constant current load
Applications:
·PABX,
·Internet Telephony (VoIP) applications.
·GSM gateway
·Call center, voice cards


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