SUBSCRIBER LINE INTERFACE KIT
Description
L3000S L3030
SUBSCRIBER LINE INTERFACE KIT
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PRELIMINARY DAT A
PROGRAMMABLE DC FEEDING RESIS-TANCE AND LIMITINGCURRENT (fourvalues available) THREE OPERATING MODES : STAND-BY, CONVERSATION, RINGING NORMAL/BOOSTBATTERY, DIRECT/REVERSE POLARITY SIGNALLING FUNCTION (off-hook/GND-key) FILTERED OFF-HOOK DETECTION IN STAND-BY (10ms) QUICK OFF-HOOK DETECTION IN CONVERSATION (< 1ms) FOR LOW DIAL PULSE DETECTION DISTORTION HYBRID FUNCTION RINGING GENERATION WITH QUASI ZERO OUTPUT IMPEDANCE, ZERO CROSSING INJECTION (no ext.
relay needed) AND RING TRIP DETECTION AUTOMATIC RINGING STOP WHEN OFFHOOK IS DETECTED PARALLEL AND SERIAL DIGITAL INTERFACES TELETAXE SIGNALINJECTION (2VRMS/5VRMS) LOW NUMBER OF EXTERNAL COMPONENTS GOOD REJECTION OF THE NOISE ON BATTERY VOLTAGE (20dB at 10Hz and 35dB at 1kHz) POSSIBILITY TO WORK ALSO WITH HIGH COMMON MODE CURRENTS INTEGRATED THERMAL PROTECTION WITH THERMAL OVERLOAD INDICATION SURFACE MOUNT PACKAGE (PLCC44 + PowerSO-20)
PLCC44
FLEXIWATT15
PowerSO20 slug-up slug-down
ORDERING NUMBERS : L3030 (PLCC44) L3000SX-VM (FLEXIWATT15) L3000SX (PowerSO20 slug-up) L3000SX-77 (PowerSO20 slug-down)
DESCRIPTION The ST SLIC KIT (L3000S/L3030) is a set of solid state devices designed to integratemain of the functions needed to interface a telephone line.
It consists of 2 integrated devices : the L3000S line interface circuit and the L3030 control unit.
This kit performs the main features of the BORSHT functions : feed - Battery - Ringing - Signalling - Hybrid
June 1997
Additional functions, such as battery reversal, extra batteryuse, line overvoltagesensing and meteringpulse injection are also featured ; most external characteristics,as AC and DC impedances,are programmable with external components.
The SLIC injects ringing in balanced mode and for that, as well as for the operation in battery boosted, a positive battery voltage shall be available on the subscriber card.
As the right ringing signal amplification both in ...
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