AT-2500 AUTOMATIC TELEPHONE ANALYZER
|Tone & Pulse Dial AUTO TEST|
|DTMF Frequency and Level with Multi Impedance|
|Make-Break ratio and Dial speed|
|Bell test with Programmable Frequency and Level|
|Receiving and Transmission test with Artificial Line|
|Hook Switch Flash Time Test|
|Pay Phone Auto Test|
|Line Voltage, Current and Signal Level meter|
|Digital and Analog Display, R x & T x Monitor Ports|
|Automatic Go / Nogo test without manual operation|
|Very Low EMI/TEL Line Noise|
|Optional Automatic Answering Phone Test & Printer Port|
The At2500 Automatic Telephone Analyzer is designed for not only production line but also development of telephone,
dialer & answering phone, Pay phone test is available.
It can detect DTMF tone or Dial pulse signal and switch to appropriate test automatically without manual switch.
Bell test with preprogrammed ring frequency, level and on/off time for bell sensitivity and response test.
With menu driven programming and Auto-programming easy to preset QC limits of Go/Nogo test and programmable automatic
test procedure enable telephone test without manual operation.
On abnormal operation, error signal is indicated.
With Non-volatile memory, programmed value and test procedure is saved during power fail.
With analog meter, it can be easy and quickly measure variable value of ring voltage, line voltage, loop current, signal level.
Line polarity is reversible, capable of testing pay phone operation.
From 0 to 7 Km line simulation can test the telephone set in different condition.
|Pulse dial test|
|Dial number test:||
1,2,3,4,5,6,7,8,9,0 numbers test and display. Displays Error in case of over 10 pulse.
|Dial speed test:||6.5 pps - 25.0 pps|
|M/B range:||20 - 80%|
|Accuracy:||1 digit Max|
|Inerdigit Time:||150ms Min|
|DTMF Frequency measurment|
|Accept Range:||Standard frequency ¡Ó2.5%|
|Range:||0 dBm to - 25.5 dBm|
|Two tone level test:||test the level difference between LOW and HIGH group.|
|Flash time test:||50 - 3000 msec|
|Line impedance:||600/ 900/Option|
|Feed voltage:||16 - 96 Vrms|
|Feed resistance:||2 x 200 ohms|
|Supplying signal:||400Hz sine wave (Programmable)|
Dial tone continuously output for delay time (Programmable) late then switch to Busy tone
(Normal, Continuous, Change)
|Level:||- 6dBm (Programmable)|
|Transmission test:||Meter indication signal level of line 0.1 dBm accuracy.|
|Bell ringer test|
|Test mode:||Toggle, Auto sweep, Continuous|
|Frequency:||10Hz to 95Hz with 1Hz step programmable|
|Level:||From 0 to 150 Vrms with 1 Vrms step programmable|
0 to 20 second with 1sec. step programmable It will step the
Bell ring output automatically while the hook is off. The time delay of cut off is 50 ms.
|Loop indication:||LED lamp DTMF dial signaling for TAD testing|
|0 to 7Km 1Km step programmable.|
|QC limits and parameters presetting procedure|
|Mode:||menu driven programming and auto-programming with known-good telephone set.|
|Pass and sounding system:||
It will announce short sound during individual test mode and pass indication on
LCD display after pass all test.
|Back lighted 16 x 2digits LCD display and Moving coil meter with ring voltage, loop current, line voltage and signal level scale.|
the meter and instrument is fully protected.
|Mains:||240V or 120V selectable.|
|Fuse:||Rear panel 1A|
|Size:||340W x 130H x 380D (mm)|
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