Test Access Switch Matrix

Test Access Switch Matrix (TASM) and Test Access Modules (TAM) come in a variety of sizes, shapes and installation types. Some are designed to fit 'in-line' with cabling, others to fit directly onto a DSLAM port. Sizes also vary from 24 lines module to a 200 line rack mounted device.  
Switch Module Switch Module Switch Module

 

Copper Test Heads

There are a wide range of Copper Test heads available on the market.

We believe some of the best are produced by UTEL and recommend these for copper line and DSL testing.

The U-Test 300 range is specifically designed to provide world class test performance in Central Office environments. Along with all the usual line fault detection it offers time-domain reflectometer (TDR) and prequalification options.

 

Summary of Technical Specification

  • Built on a powerful linux platform
  • Published API for direct connection
  • TL1 switching protocol
  • XML web services interface
  • Custom interface available
  • Automatic discovery

DC voltage tests

  • Range: -440 to +440 volts
  • Accuracy: ± 2%
  • Resolution: 1 volt
  • Tests performed:
    B-leg/Earth
    A-leg/Earth
    B-leg/A-leg

AC voltage tests

  • Range: 0 to 300 volts RMS
  • Frequency: 20Hz to 1kHz
  • Accuracy: ± 2%
  • Resolution: 1 volt
  • Tests performed:
    B-leg/Earth
    A-leg/Earth
    B-leg/A-leg
    Dangerous Voltage Threshold - User defined

Resistance tests

  • Range: 0 Ω to 100 Ω
  • Accuracy: ± 3 Ω
  • Range: 100 Ω to 10M Ω
  • Accuracy: ± 3%
  • Resolution: 1 Ω
  • Tests performed:
    A-leg/Earth
    B-leg/Earth
    B-leg/A-leg
    A-leg/B-leg (Reversed Loop)
    A-Battery
    B-Battery

Capacitance tests

  • Range: 0nF to 100n μ F
  • Accuracy: ± 3nf
  • Range: 100nF to 10 μ F
  • Accuracy: ± 3%
  • Resolution: 1nF
  • Tests performed:
    B-leg/Earth
    A-leg/Earth
    B-leg/A-leg

Exchange or Central Office tests

  • Line Circuit conditions
  • Draw Dial Tone
  • MF4 Dialling

Noise Tests

  • Range: 10KHz to 2.2 MHz
  • Accuracy: ± 50Hz
  • Level: 0dB to -40dB (10Khz to 2.2MHz)
  • Accuracy: ± 1.0dB
  • Phsometric Weighted Filter Display
  • Filter: C/E/F/G or No Filter

Longitudinal balance

  • Range: 10KHz to 2.2 MHz
  • Accuracy: ± 3db

Frequency Level Tests

  • Range: 300Hz to 80kHz
  • Accuracy: ± 10Hz
  • Level: –40dB to +10dB (0 to 80kHz)
  • Accuracy: ± 1.0dB

TDR

  • Distance: 4Km (Dependent on Cable Characteristics)
  • Pulse Width 30ns to 20us

Tones Generated

  • Transmission test tone: 300Hz to 80kHz
  • Level: -40dB to 0 dB
  • Pair identification tone: 300Hz to 3.4kHz
  • Howler: Consecutive application of 2.5kHz, 1.616kHz, 1.982kHz and 1.25kHz
  • Intrusion tone: 2kHz

Termination Test and Identification

  • Customer premises line termination
  • Off-hook telephone
  • Telephone Connected
  • NTE only no Telephone connected
  • BB Modem

Communications Interface

  • Ethernet

Dimensions

  • Size (HxWxD): 25x425x150 millimetres

Supply voltage

  • DC supply: 36 to 72 volts

Power consumption

  • Idle power: 10W
  • Maximum Power: 35W
  • Includes power for UTEL TAM and Vonaq VDSL Options

Operating environment

  • Temperature range: -30 C to 65 C
  • Humidity range: 0% to 95% non-condensing

Reliability

  • MTBF: Greater the 35 years

Product approvals and standards

  • CE approved: Electromagnetic emissions
  • Safety standards: IEC 1010-1, EN41

Test Heads