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Portable PCM Channel Analyzer
Portable PCM Channel Analyzer

GAO Tek Portable PCM Channel Analyzer with BER Tester

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Product Description

Overview

GAOTek PCM Channel Analyzer with BER Tester is a portable, multi task operating device used to measure PCM devices, digital switches, carrier wave communication devices, VoIP devices, etc. It is especially useful in the measurement and test during the process of R & D, production, engineering installation, commissioning, verification and maintenance. It is a single unit which can test the return loss, longitudinal conversion loss. This advanced portable PCM channel analyzer integrates an analog signal generator/receiver, a selective level meter, a BERT, a signaling generator/receiver, a ring generator/identifier, a Dialer, a DC loop circuit (ICT, OGT), a balanced bridge and a reflecting bridge and other functions into a single instrument. The analyzer also compares the measured results with built-in standard ITU-T tolerance masks to evaluate whether the results indicate a pass or fail.

Key Features

  • Integrates a tone oscillator, selective frequency meter, BER tester and Call Generation 5.7 inches 640 x 480 high-resolution color LCD screen
  • Flexible control modes
  • Built-in call set-up circuit can set up testing channel directly by dialing on the tester without the help of other telephone
  • Built-in generator and receiver, analog input and output interfaces are separately with ICT and OGT. Interfaces can be directly tested, including 2/4W E&M, MDR, LGE, FXO, LGS and FXS
  • Built-in balanced bridge and reflecting bridge, return loss, longitudinal conversion loss and longitudinal conversion transfer loss can be measured
  • Remote control signaling group is available
  • Embedded software can be upgraded online
  • Options: A-D, D-D, D-A, E1 BERT

Technical Specifications

Generator/Receiver Frequency: 200 Hz ~ 3600 Hz

Level: +5 dBm ~ 60 dBm

Interface Impedance 600 W, 200 W + 560 W/0.1 µF, 200 W + 680 W/0.1 µF, 0Ω (output) and high impedance (input)
Relative Level Tx: +1 dBr ~ -16 dBr, step: 0.1 dBm

Rx: +7 dBr ~ -10 dBr, step: 0.1 dBm

DC Loop
ICT  Dynamic impedance > 100 k Ω
Loop Current Max.60 mA
Loop Voltage 18V
OGT Dynamic impedance > 100 k Ω
Loop Constant Current 25 mA
E1 Testing
Impedance 75Ω (Unbalanced), 120Ω (Balanced)
Line Code HDB3,AMI
Frame Type PCM30/30CRC, PCM31/31CRC, Unframed
Humidity 5 % to 95 % non-condensing
Weight 3.87 lbs. (1.8 kg) approximately
Dimension 11.54 in x 7.68 in x 2.20 in (293 mm x 195 mm x 56 mm)
Storage Temperature -22 ˚F to +158 ˚F (-30˚C to +70˚C)
Operating Temperature 32 ˚F to +122 ˚F (0 ˚C  to +50˚C)

Ordering information:

This package includes

Item Quantity
GAOTek Portable PCM Channel Analyzer 1Pcs
3-Pin audio Test Cable 1Pcs
Grounding Cable 1Pcs
Master-Slave USB Cable 1Pcs
AC Power Cord 1Pcs
Software Setup CD 1Pcs
Waterproof Package 1Pcs
User Guide 1Pcs

Appearance of the Instrument:

  • Face panel: LCD display, Operational keys and LED alarm and status indicators.
  • Back panel: Four holders, and serial number label
  • Front panel: E1 unbalanced signal input/output port (L9 coaxial), E1 balanced signal input/output port, analog balanced receive/transmit port, analog unbalanced receive/transmit port, 220V AC input jack, fan, and grounding pole
  • Rear panel: power switch, network port, master-slave USB port, and stylus jack

GAOTek Portable PCM Channel Analyzer provides following functions

  • A-A test, A-D test (Option), D-A test (Option), D-D test (Option), and E1 BER test (Option).
  • A-A measurement indexes: “Level”, “Gain Frequency Dependent”, “Gain Level Dependent”, “Total Distortion”, “Idle Noise”, “Crosstalk”, “Return Loss”, “Longitudinal Conversion Loss” and “Longitudinal Conversion Transfer Loss”.
  • A-D, D-A and D-D measurement indexes(Option): “Level”, “Gain Frequency Dependent”, “Gain Level Dependent”, “Total Distortion”, “Idle Noise” and “Crosstalk”.
  • E1 BER test(Option):
    1. Alarm detection, signal analysis, unframed and framed BER measurements
    2. Tx clock: Internal or Interface
    3. BERT patterns: 220-1, 215-1, 211-1, 29-1, 27-1, 1111, 0000, 1010 and 32-BIT User’s programmable code
    4. Error insertion: OFF, SINGLE and RATE (10E-2, 10E-3, 10E-4, 10E-5, 10E-6 and 10E-7) 9 BER analysis in accordance with ITU-T G.821

 Touch screen:

The touch screen is a man-machine interactive interface device that works together with the electronic display. It can be operated easily and visually. The operator can directly click the touch screen to send a command and set a function at will. In comparison with the traditional keyboard and mouse input mode, input via the touch screen is more visual.

LED Indicators:

GAOTek Portable PCM Channel Analyzer has 16 indicators, of which 12 are status indicators and 4 are alarm ones. They indicate the current operating status of the instrument and if any alarm is detected during the test process.

Calibration and Use of the Touch Screen:

This instrument supports the touch screen input mode. When the location that responds in the operation of the touch screen is incorrect, the touch screen calibrate the location. Go to “MISCELLANEOUS” in the “Others” menu, and click “Enter” on the right of touch screen calibration to go to the touch screen calibration window.

Analog Signal Generator:

Sine-wave signal
Frequency range 200 Hz ~ 3600 Hz
Frequency resolution 1 Hz
Frequency accuracy ± 50 x 10-6
Harmonic distortion > 56 dB at 0 dBm
Level range: – 60dBm  to + 5dBm
Level resolution: 0.1 dB

Performing Measurement:

A-A Test:

Performing 2-wire Voice Channel Test

Setting up the Condition of Test

  • Hardware: 1 exchanger (or 2 PCM multiplexers), 1 PC, and 1 GAOTek Portable PCM Channel Analyzer
  • Software: 1 set of exchanger (or PCM multiplexer) management software

  Test Description

GAOTek Portable PCM Channel Analyzer is designed with the built-in bridge circuit ,take test of “Level”, “Gain Frequency Dependent”, “Gain Level Dependent”, “Total Distortion”, “Idle Noise”, “Return Loss”, “Longitudinal Conversion Loss” and “Longitudinal Conversion Transfer Loss” with only one set of PCM Channel Analyzer, i.e., no other auxiliary device is needed.

Performing 4-wire PCM Channel Test

Setting up the Condition of Test

  • Hardware: 1 exchanger (or 2 PCM multiplexers), 1 PC, and 1GAOTek Portable PCM Channel Analyzer
  • Software: 1 set of exchanger (or PCM multiplexer) management software
  • Accessories: Capacitance and matching impedance

 Test Description

GAOTek Portable PCM Channel Analyzer can directly measure the “Level”, “Gain Frequency Dependent”, “Gain Level Dependent”, “Total Distortion”, “Idle Noise”, “Return Loss”, “Longitudinal Conversion Loss” and “Longitudinal Conversion Transfer Loss” PCM channel indexes.

A-D Test:

To perform A-D test, select “PCM multiplexer” or “Exchanger (E1)”. In addition we can measure only “Level”, “Gain Frequency Dependent”, “Gain Level Dependent”, “Total Distortion”, “Idle Noise” and “Crosstalk“. Figure shows the connection for the instrument.

Connection of A-D Test

To perform the test:

  • Select “PCM Multiplexer” or “Exchanger (E1)” and one channel, and select “A-D Test”. Test can be done either manual or auto. Select “Manual” or “Auto”.
  • Complete “Settings”. Make sure that the set parameters are matched with requirements of the channel under test.
  • Select the Rx timeslot, and confirm that the Rx timeslot can receive the data sent from your Tx end.
  • Select the test index. In the case of “Manual” test, measure only one index each time. In the case of “Auto” test, measure six indexes at one time.
  • After settings, click “Start Test”. The instrument automatically switches to the result menu to display the test result.

D-A Test:

To perform D-A test, select “PCM multiplexer” or “Exchanger (E1)”. In addition we can measure only “Level”, “Gain Frequency Dependent”, “Gain Level Dependent”, “Total Distortion”, “Idle Noise” and “Crosstalk“. Figure shows the connection for the instrument.

Connection of D-A Test

To perform the test:

  • Select “PCM Multiplexer” or “Exchanger (E1)” and one channel, and select “D-A Test”. Test can be done either manual or auto. Select “Manual” or “Auto”.
  • Complete “Settings”. Make sure that the set parameters are matched with requirements of the channel under test.
  • Select the Rx timeslot, and confirm that the Rx timeslot can receive the data sent from your Tx end.
  • Select the test index. In the case of “Manual” test, measure only one index each time. In the case of “Auto” test, measure six indexes at one time.
  • After settings, click “Start Test”. The instrument automatically switches to the result menu to display the test result.

D-D Test:

To perform D-D test, select “PCM multiplexer” or “Exchanger (E1)”. In addition we can measure only “Level”, “Gain Frequency Dependent”, “Gain Level Dependent”, “Total Distortion”, “Idle Noise” and “Crosstalk“. Figure shows the connection for the instrument.

To perform the test:

  • Select “PCM Multiplexer” or “Exchanger (E1)” and one channel, and select “D-D Test”. Test can be done either manual or auto. Select “Manual” or “Auto”.
  • Complete “Settings”. Make sure that the set parameters are matched with requirements of the channel under test.
  • Select the Rx timeslot, and confirm that the Rx timeslot can receive the data sent from your Tx end.
  • Select the test index. In the case of “Manual” test, measure only one index each time. In the case of “Auto” test, measure six indexes at one time.
  • After settings, click “Start Test”. The instrument automatically switches to the result menu to display the test result.

E1 BER Test

GAOTek Portable PCM Channel Analyzer is integrated with the E1 BER test module, and can send the pseudorandom code, detect BER, and complete the signal analysis and alarm analysis. It is the effective tool for E1 line or system maintenance and overhauling. Depending on the test connection mode, the test can be classified into far-end loop back test and mutual test.

Loop Back Test of BER

Mutual test of BER

To perform the test:

  • Select the “E1 BER Test” function.
  • Go to the “Settings” menu to perform relevant settings, including “Interface Impedance”, “Line Code Type”, “Framing”, “Tx/Rx Timeslots”, “Tx Clock” and “Code Type” and “BERT Pattern”. Set the first four items according to the actual status of the tested system, so as to ensure correct settings.
  • Select one of the above two test modes as actually needed.
  • After the settings and line connection are completed, click “Start Test” to go to the result menu. The instrument will complete the test and display the test result.

Working with TestManagerPro:

Software Functions:

TestManagerPro communicates with series instruments via USB port or Ethernet port in PC. It can support uploading the stored data from the instrument, viewing and printing the stored results

Basic functions of TestManagerPro:

  • Select the type of the instrument.
  • Connect the instrument.
  • Upload the test results stored in the instrument.
  • View the stored results.
  • Analyze the stored results.
  • Clean up the uploaded records.
  • Print the test results with report format.
  • Configuration file management
  • Configuration file Synchronization
  • Upgrade the embedded software.
  • Help.

System Configuration and Running Environment:

  • Firmware Basic Configuration Required

PC :586/133MHz or better

Memory :16MB or above

Hard disk:500MB or above

Standard mouse and keyboard

Windows-compatible printer or plotter

CD-ROM drive for installation

USB port

Network card and cable

  • Software Configuration Required

Operating system:Windows/NT/2003/VISTA/WIN7

  • System Configuration Recommendation

System display mode: 800×600 Pixels

Install the printer or plotter before setup

How to Use TestManagerPro:

  • Connect the Instrument

Connect the instrument and the PC with network cable or USB cable. Choose the corresponding communication port in PC communication menu, and select GAOTek Handheld Gigabit Ethernet Tester as the type of instrument in the TestManagerPro software, then click Connect. If the Ethernet port is selected as communication port, the IP address in the instrument should be select accordingly.

  • TestManagerPro Software Operation

Graphic windows help you operate TestManagerPro software simply and easily.

Manage Configuration Files:

The function of configuration file management is used to set some specific test points or scopes to make certain restrictions, and configure these settings in the instrument as the judgment criteria via the data transmission cable.

Synchronize Configuration Files:

The configuration file synchronization function is used to configure the setting information, which is in configuration file management, into the instrument via the network cable or USB cable, so as to implement multiple standard masks and customized masks, manually modify the test mask, and keep synchronization.

Upload Test Records:

After successful connection between the instrument and PC, click Upload Record button in the tool bar and it will pop up a dialog box, and then click Upload button to upload the records. When there are many test records to be uploaded, it is recommended to use Ethernet port which makes it faster than USB port.

Standards:

Standards Related to Voice Channel Measurement

All the performance indexes of GAOTek Portable PCM Channel Analyzer comply with the specific requirements in the national industry standard YD/T 617-93 Technical Conditions of PCM Voice Channel Tester, and are recognized as the technical indexes for “superior product” defined in YD/T 651-94 Quality Grading Standard for PCM Voice Channel Tester.

Standards Related to E1 BER Test

Comply with G.703, G.706 and G.732.

Additional Information

Weight 3.96 lbs

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