Trouble Shooting with ELQ 30A+ Typical Cable Problems CROSSTALK BRIDGED TAPS INTERRUPTION UNBALANCE NEXT Measurement FEXT Measurement Location of XTALK Point Recognition of Bridged Taps Location of Bridged Taps Micro Interruption Detection Location of Loose Contacts LCL Balance Measurement To learn more click on the selected topic! ELEKTR NIKA

Near End Crosstalk Measurement ELQ 30A+ MASTER SLAVE ELQ 30A+ MASTER SLAVE FAIL ► ◄ PASS The location of cross talk point can be found by the TDR of ELQ 30A+ To visit the TDR page click on the key ELEKTR NIKA

Far End Crosstalk Measurement ELQ 30A+ MASTER SLAVE ELQ 30A+ MASTER SLAVE FAIL ► ◄ PASS The location of cross talk point can be found by the TDR of ELQ 30A+ To visit the TDR page click on the key ELEKTR NIKA

Crosstalk Point Location with TDR When the XTALK is out of limit it is very likely that the reason is split. The best tool to locate the XTALK points is ELQ 30A+ in TDRXTALK mode. ELQ 30A+ Split Resplit Typical Waveform ELEKTR NIKA

Recognition of Bridged Taps Impedance measurement is the best tool to recognize bridged taps because they cause strongly waving line impedance Typical impedance measurement result FAIL ► ◄ IRREGULAR The location of bridged tap can be found by the TDR of ELQ 30A+ To visit the TDR page click on the key ELEKTR NIKA

Bridged Tap Location with TDR When the line impedance is strongly waving it is very likely that the reason is bridged tap. The best tool to locate it the TDR of ELQ 30A+ Typical Waveform Distance to tap Length of tap ELEKTR NIKA

Micro Interruption Detection Micro interruption is a temporary line interruption due to loose contacts. ELQ 30A+ detects the micro interruptions using 1020 Hz test tone The location of loose contact can be found by long time TDR measurement To visit the TDR page click on the key ELEKTR NIKA

Loose Contact Location ELQ 30A+ in long time TDR mode performs a sequence of repeated measurements The obtained waveforms are different if the features of tested pair change during the test Typical Waveform ELEKTR NIKA

Balance (LCL ) Measurement ELQ 30A+ in Master-Slave mode provides a useful tool to find unbalance causing impairment of xDSL connections. ELQ 30A+ MASTER SLAVE ELQ 30A+ MASTER SLAVE PASS ► ◄ FAIL ELEKTR NIKA

THANK YOU FOR YOUR ATTENTION!