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ST-2040 PCM Analyzer
I. Features Portable design; Built-in test template, and pattern display; Built-in direct current loop feed circuit and direct current loop hold circuit; Human engineering design, intelligent English operation interface; Large-screen LCD display, 320240 latt

 Specifications

ST-2040 PCM Channel Analyzer

I. Features

    Portable design;

    Built-in test template, and pattern display;

    Built-in direct current loop feed circuit and direct current loop hold circuit;

    Human engineering design, intelligent English operation interface;

    Large-screen LCD display, 320240 lattice, EL backlight;

    With high-speed miniprinter and external printer interface.

II. Functions

    English menu, large screen display and simple operation;

    Multi-task operation (test and browse former records simultaneously)

    Test level, Variation of gain with frequency, Variation of gain with input level, quantizing distortion, Idle channel noise, crosstalk, Return loss and balance to ground;

    End to end and loop-back test;

    Single-channel or 30 channels automatic test, and print it as report form.

    Full-automatic mode, manual mode, full-automatic mode could select one item, several items or all of measurement indexes, and the test step length could be programmable;

    It could store over 60 groups of measurement results; the test setup memory could be up to 9; it could also operate non-volatile memory;

    Built-in generator and receiver, the output interface and input interface are respectively with direct current loop feed circuit and direct current loop hole circuit, not only it could measure E&M 2/4 line interface, but also it could measure LGEFXOLGSFXS interface;

    Test result pattern display, compare with built-in ITU-T rec;

    Measurement result could upload to PC, and take it for analysis, filing and printing;

    Online updating for embedded software.


III. Technical parameters

3.1 Generator

Signal frequency 200Hz3600Hzstep: 10Hz
Output level +6-61dBm0step: 1dB
Relative level +1-17dBstep: 0.1dB
Distortion degree 1020Hz/0dBm0<-55dB
Frequency response 0.1dB
Output impedance and return loss 600 within 2003600HZ, return loss30dB
Output balance degree of balance 60dB within 2003600Hz


3.2 Receiver

Level Frequency 200Hz3600Hz
Level range +13dB-78dBin which dBm0:+6-61dB,
dBr: +7-17dB
Measurement error 0dBm0 is 0.2dBothers are 0.3dB
Signal 1020Hz/0dBm0
Frequency response Signal 1020Hz/-10dBm0
Frequency range 200Hz3600Hz
Measurement range -20dB+20dB
Measurement error 0.2dB
Variation of gain with input level Signal 1020Hz/-10dBm0
Level range +6dBm0-61dBm0
Measurement range --20dB+20dB
Measurement error 0.2dB
Idle channel noise Assistant signal 420Hz/- 45dBm0
Measurement range -92dBm0-22dBm0, ITU-T weighted
Measurement error 0.5dB
Crosstalk Main cross signal 1020Hz/0dBm0
Measurement range -92dBm0-22dBm0
Error range 1 dBm0
Quantizing distortion Reference frequency 820Hz
Level range +6dBm0-61dBm0
Measurement range 0-40dBITU-T weighted
Measurement error 0.8dB
Return loss Signal frequency range 200Hz~3600Hzlevel: 0dBm0
Measurement range 0dB~62dB
Measurement error 1dB
Degree of balance to ground Signal frequency range 200Hz~3600Hzlevel: 0dBm0
Measurement range 0dB~82dB
Measurement error 1dB
Input impedance and return loss input impedance is 600 within 2003600HZ, and return loss 30dB
Input balance degree of balance 60 dB within 2003600Hz
Interface balance 600200+560//0.1UF ; 200+680//0.1UF
Relative level -17+7dBstep: 0.1dB
Direct current loop IGT dynamic impedance >100K, maximum loop current is 60mA, and loop voltage drop is -15V;
OGT dynamic impedance >100K, and constant current of feed circuit is 25mA
Power supply (1)With special power adapter
INPUT:AC220V 50Hz
OUTPUT:DC 9V 1A
(2) Internal rechargeable battery
4000mAh 6V Ni-MH rechargeable battery
Working time: 6 hours
Charge: 6 hours at turn-off; 10 hours at turn-on;
Printer P40-TS(CH) Standard serial Chinese/English mini-printerOptional
Dimensions LWH=20016042mm
Weight about 1kg
Operation temperature 040
Storage temperature -20+70
Humidity 5%90% non-condensing

4. Packing List

No.
Item
QTY
1
ST-2040 PCM Channel Analyzer
1 PC
Documents
2 Users manual 1 PC
3 Software disc 1 PC
4 Certificate/Warranty 1 PC
5 Packing list 1 PC
Attached accessories
6 Connecting line with three pole 2 PCS
7 RS232 serial communication line 1 PC
8 Adapter 1 PC
9 Handy-case 1 PC
10 Mini printer (optional) 1 PC
11 External printer interface (optional) 1 PC

 
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