KE-LQ20

Line Qualifier for ADSL, SHDSL and ISDN services. TDR measurements up to 6 km cable length.

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SKU: KE-LQ20 Categories: ,

Overview

Large graphic display. Built-in rechargeable battery. Incl. test leads, power supply, PC software and bag. Two devices are required for fully automated end-to-end measurement including calculation of the expected transmission bandwidth.
Optionally available: AC/DC bridge and various software options (price on request).

KE-LQ20
MeasurementsAutomatic Measurements with two instruments
Loss
Frequency response
Weighted noise
Spectrum
Signal-to-noise-ratio
Achievable bit rate calculationh
Longitudinal balance
Return loss
Impendance
Near-end cross talk
Far-end cross talk
Manual modes
Transmitting
Recieving
Insertion loss
Frequency response
Near-end cross talk
Longitudinal balance
Impedance
Return loss
Weighted noise
Spectrum
Impulse noise
Load coil detection
Micro interruption (optional)
Fault location with TDR
Single pair test
Pair comparison
XTALK comparison
Before and after comparison with memory
Measurement with BRIDGE option
Basic cable tests
AC/DC voltage
Loop resistance
Resistance difference
Insulation resistance
Load coil detection
Cable temperature
Leakage location with DC bridge
Murray loop method
Three point method
Improved Küpfmüller method
Break location with AC bridge
Break
Break and leakage
Basic cable tests with DMM option
DC voltage
DC current
Loop resistance
Insulation resistance
Preprogrammed parameter setsADSL2+ (ITU–T G.992.5 Annex A, B, I, J, M) (optional)
EC: 8 Mbps, 16 Mbps, 24 Mbps
FDD: 8 Mbps, 16 Mbps, 24 Mbps
ADSL2 (ITU–T G.992.3 Annex A, B, I, J, M)
EC: 4 Mbps, 6 Mbps, 8 Mbps
FDD: 4 Mbps, 6 Mbps, 8 Mbps
ADSL (ITU–T G.992.1 Annex A, B)
EC: 2 Mbps, 4 Mbps, 6 Mbps
FDD: 2 Mbps, 4 Mbps, 6 Mbps
ADSL (ETSI TS 101 388 v 1.3.1)
EC: 2 Mbps, 4 Mbps, 6 Mbps
FDD: 2 Mbps, 4 Mbps, 6 Mbps
READSL2 (ITU–T G.992.3 Annex L)
EC: 768 kbps, 1 Mbps, 1.5 Mbps
FDD: 768 kbps, 1 Mbps, 1.5 Mbps
ADSL G.LITE (ITU–T G.992.4 Annex A)
EC: 768 kbps, 1 Mbps, 1.5 Mbps
FDD: 768 kbps, 1 Mbps, 1.5 Mbps
ADSL G.LITE2 (ITU–T G.992.4 Annex I)
EC: 768 kbps, 1 Mbps, 1.5 Mbps
FDD: 768 kbps, 1 Mbps, 1.5 Mbps
HDSL (ITU–T G.991.1)
1 PAIR 2B1Q/CAP, 2 PAAR 2B1Q/CAP
SHDSL (ITU–T G.991.2 Annex B)
1 PAIR 16 TC PAM 256, 512, 768, 1024, 1280, 1536, 2048, 2304 kbps
2 PAIR 16 TC PAM 512, 1024, 1536, 2048, 2560, 3072, 4096, 4608 kbps
SHDSL (ETSI TS 101 524 v 1.3.1 Annex E)
1 PAIR 16 UC PAM 512, 1024, 2048, 3848 kbps
2 PAIR 16 UC PAM 1024, 2048, 4096, 7696 kbps
1 PAIR 32 UC PAM 768, 1536, 3840, 5696 kbps
2 PAIR 32 UC PAM 1536, 3072, 7680, 11392 kbps
ITU-T VOICE FREQUENCY MODEMS
2.4 kbps (V26), 56 kbps (V92), Fax14.4 kbps (V17)
ISDN
ITU–T G.962 Basic Rate, ETSI ETR 080 Primary Rate
Power supplyInternal rechargeable NIMH battery pack
Operation time approx. 8 hours (w/o backlights)
ChargingFrom 230 V mains with mains adapter
From 12 V car battery with car adapter
Fast charging time less than 3 hours
Display320 x 240 LCD with backlight
ConnectionsSerial interface: RS232C
Line connectors: 2 pieces of 3 pol CF sockets
Dimensions224 mm x 160 mm x 44 mm
WeightApprox. 1.5 kg
Environmental conditionsOperating range – 10 to +50° C
Storage and transport – 20 to +70° C
TransmitterImpedances
10 kHz to 2.2 MHz: 100, 120, 135, 150 Ohm
200 Hz to 10 kHz: 600 Ohm
Output level range +5 to -19 dBm
Resolution 0.1 dB
Accuracy at 0 dBm -0.3 dB
ReceiverImpedance
10 kHz to 2.2 MHz: 100,120,135, 150 Ohm
200 Hz to 10 kHz: 600 Ohm
200 Hz to 2 MHz: >20 kOhm 50 pF
Input level range
Z line = 100, 120, 135, 150 Ohm: -90 to +5 dBm
Z line = 600 Ohm: -90 to 0 dBm
Resolution 0.1 dB
Accuracy at 0 dBm ± 0.2 dB
Loss, NEXT and FEXT measurementsImpedance
10 kHz to 2.2 MHz: 100, 120, 135, 150 Ohm
200 Hz to 10 kHz: 600 Ohm
Measuring range
Loss, NEXT measurements: 0 to 80 dB
Accuracy within frequency range of 200 Hz to 1 MHz
Loss, FEXT, NEXT <50 dB: ±0.5 dB
Loss, FEXT, NEXT <70 dB: ±1d B
Loss, FEXT, NEXT >70 dB: ±1.5 dB
Accuracy within frequency range of 1 MHz to 2.2 MHz
Loss, FEXT, NEXT: –2 dB
LCL balance measurementImpedance
10 kHz to 2.2 MHz: 100, 120, 135, 150 Ohm
200 Hz to 10 kHz: 600 Ohm
Measuring range: 0 to 40 dB
Accuracy:
10 kHz to 2.2 MHz: ±2 dB
Impedance measurementFrequency range
10 kHz to 2.2 MHz: up to 400 Ohm
200 Hz to 10 kHz: from 300 up to 1600 Ohm
Accuracy:
10 kHz to 1 MHz: ±5% ± 5 Ohm
200 Hz to 2.2 MHz: ±10% ± 5 Ohm
Return loss measurementImpedance
10 kHz to 2.2 MHz: 100, 120, 135, 150 Ohm
200 Hz to 10 kHz: 600 Ohm
Measuring range
Return loss measurement: up to 40 dB
Impendance range: Z/2 to 2Z
Accuracy at 20 dB
10 kHz to 1 MHz: ±1 dB
200 Hz to 2.2 MHz: ±2.5 dB
Spectrum analyzerFrequency ranges / Bandwith
10 to 2200 kHz: 5/10 kHz
2.5 to 500 kHz: 1.25/2.5 kHz
1 to 200 kHz: 0.5/1 kHz
0.2 to 20 kHz: 50/100 Hz
0.2 to 4 kHz (10 Hz resolution optional): 10/20 Hz
Measurement types: Normal, Peak, Average
Wideband noise measurementWeighting filters
for POTS: P Filter
mit 10 Hz resolution option: 1010 Hz Notch Filter
for ISDN BRA: E Filter
for ISDN PRA HDB3: G2-E Filter
for HDSL, 2 PAIR, 2B1Q: F-E Filter
for HDSL, 1 PAIR, 2B1Q: F1-E Filter
for ADSL, DMT: G Filter
for auto mode.: 3 dB at fmin and fmax
Measuring range:
With P and E filters: 0 to -80 dBm
With F and G filters: 0 to -70 dBm
Without filter: 0 to -65 dBm
Measurement times: 1, 5, 10, 15, 30 s, 1, 5, 10, 15, 30 min
Impulse noise measurementPulse width > 500 ns
Interval size 10 ms
Treshold range 0 to -60 dBm
Maximum count 65000
Measurement times 1, 5, 10, 15, 30 s, 1, 5, 10, 15, 30 min
Fault location with TDRMeasuring modes: Single pair, Single pair long time, Pair comparison, Comparison to memory, XTALK point location
Measuring ranges
Depending on cable quality: up to 20 km
Resolution: 0.1% of range
Accuracy: 0.4% of range
Propagation velocity
PVF: 0.3 to 0.999
V: 90 to 299 m/ms
V/2: 45 to 150 m/ms
Gain range: 0 to 72 dB
Measuring pulse width: 10 to 5000 ns
Amplitude at 120 Ohm
25 to 5000 ns pulse: ~5 V
10 ns pulse: ~4 V

KE-LQ20

KE-LQ20 Data Sheet 112.49 KB
KE-LQ20 Manual 476.62 KB

Product Catalogue

Kurth Electronic Program 2019 16.62 MB