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Fluke Networks 990DSL Loop Tester (Base Unit)

Fluke Networks 990DSL
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  • 990DSL Loop Tester (Base Unit)
  • Scalable Design
  • Versatility
  • Powerful Software
  • Ease of Use

At a Glance:

  • Replaces up to sixteen traditional test sets
  • Troubleshoots and qualifies lines for POTS, ADSL and other special services
  • Time Domain Reflectometer (TDR) feature allows precision fault location
  • Fast, accurate and easy to use
  • Compact, rugged and weather resistant
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Product Information

10061000 D914S Impact Tool.


Scalable Design


Powerful Software

Ease of Use

Fast, accurate and easy to use

Replaces up to sixteen traditional test sets


Fluke Networks 10061000 D914S Impact Tool


A next generation field test set for subscriber loop fault identification and location and voice and data line qualification.

In its basic configuration, CopperPro offers a broad range of Plain Old Telephone Services (POTS) troubleshooting, fault location and line qualification capabilities. Its Wideband/TDR option adds high frequency transmission testing and qualification functions for services like ADSL, HDSL, HDSL2, HDSL4, ISDN, T1, E1 and DDS. And the TDR feature of the option adds precise fault location and analysis. The Wideband/TDR option can be added at time of purchase or later at an authorized service center.

Scalable technology that protects your investment

CopperPro's basic configuration is designed for POTS applications including voltage, opens, shorts, balance, RFL, VF noise and loss, terminated and dial-up tests, as well as load coil detection and line monitoring.

The Wideband/TDR option delivers accurate fault location capability in a handheld test set. With it, you can test and compare pairs, store measurements and test for crosstalk between pairs.

The Wideband/TDR option also includes everything you need to qualify and troubleshoot lines for all standard digital services, including HDSL, HDSL2, T1, E1, ISDN BRI, ISDN PRI and DDS. Within seconds, the unique ADSL AutoTest determines whether a pair can provide ADSL service - even predicts upstream and downstream rates and bits per frame.

Versatility with standalone or automation operation

You can identify, locate and repair line faults and qualify loop performance - all at the push of a button. And CopperPro can capture the test results for complete documentation.

CopperPro combines a toolbox approach with programmable Auto-Tests that make testing fast and easy. Results are displayed graphically on its large, bitmapped display that's easy for users to view in all light conditions. In addition, integrated tests combine functions to help the user understand what' causing the problem as well as pinpoint the location.

The result? Better and faster service. Higher productivity - and profitability.

As a standalone tool, CopperPro's handheld design makes it easy to carry and operate wherever testing takes you. CopperPro is easily automated for even greater testing speed and consistency - with documented test results.

Powerful Software enables sixteen test sets in one

You can identify and locate common physical cable faults like shorts, crosses, opens, splits, pair imbalances caused by bad splices and corroded metallic faults on unused pairs.

CopperPro also makes it easy to find the root causes of transmission problems, like excessive noise or signal loss, and helps locate and identify loop treatment devices like range extenders, network interface devices and maintenance termination units.

And, CopperPro makes fast work of qualification for both POTS like Caller ID, ANI and dial up modems, as well as digital broadband services like ADSL (DMT and CAP), T1, E1, DDS, ISDN, HDSL and HDSL2. That includes noise, loss and crosstalk measurements, predicted data rates, and location of impairments like load coils or bridge taps.

CopperPro offers the following sixteen test set capabilities:

  • Digital Multimeter (AC/DC Voltage, Resistance)
  • Opens Meter
  • RFL Meter
  • Noise Meter (VF and WB, Gaussian and Impulse)
  • Time Domain Reflectometer
  • Dial Set
  • Leakage Tester
  • Ammeter (DC)
  • Loss Meter (VF and WB)
  • VF and WB Precision Signal Generator
  • Tracing Tone Generator
  • ANI and CID Tester
  • ADSL Connectivity Tester
  • ADSL and Special Services Pair Qualification Set
  • VF and WB Longitudinal Balance Meter
  • Power Harmonics Analyzer

Ease of Use - do more faster and with less training

Results are displayed graphically on its large, bitmapped display that's easy for you to view in all light conditions. In addition, integrated tests combine functions to help you understand what's causing the problem as well as pinpoint the location.


General Specifications
Size 9.8"H x 5.3"W x 3.2"D (24.9cm x 13.5cm x 8.1cm) Weight: 4 lbs (1.81 kg)
Display 320 x 240 pixel graphic LCD with backlight and adjustable contrast
LED Indicator Charging status indicator (side connector panel)
Communication Port RS-232 PC/Printer port (DB-9)
AC Operation External AC adapter/charger
Battery Type (installed) Internal removable NiMH rechargeable battery pack
Battery Life A fully charged battery provides approximately 16 hours of normal use
Battery Recharge Time (in tester) 2 to 3 hours for a fully discharged battery pack
Operating Temperature -4° to 140° F (-20° to 60° C)
Storage Temperature -40° to 158° F (-40° to 70° C)
Humidity Tolerance (operation without condensation) 95%
Rain Resistance IEC60529 IP02, International protection water dripping
Vibration Random, 2 g, 5 Hz to 500 Hz
Shock 1 Meter Drop Test
Altitude 4500 m (15,000 ft)
Regulator Compliance
Safety CSA C22.2 No.1010.1
CE EN 61326 Emissions and Immunity CLASS A; EN 61010-1 2nd ammendment
Basic CopperPro
AC Voltage 0 to 250V (1% ± 0.5V accuracy)
DC Voltage (RIN=100 kohms or 10 Mohms) Range: 0 to 150V (1% ± 0.5V accuracy); 150 to 300V (2% accuracy)
DC Loop Current (430 ohms) 0 to 100 mA (2% ± 0.3 mA accuracy)
Resistance (shorts & grounds) 0 to 100 ohms (0.1% ± 0.10 ohm accuracy)
100 ohms to 1000 kohms (0.2% ± 0.10 ohm accuracy)
4 kohms to 999 Mohms (3% accuracy)
Leakage Stress 2 kohms to 999 Mohms (3% accuracy)
Opens 0 to 3000 ft (1% ± 5 ft accuracy)
3 to 50 kft (3% accuracy)
50 to 80 kft (5% accuracy)
Splits Range: 0 to 50 kft (Accuracy: 10% of Cable Length)
RFL (RTS = Res. to Strap)
Fault Resistance (Rf) 0 to 30 Mohms
Loop Resistance 0 to 4000 ohms
Resistance to Fault (@ Rf = 100 kohms) 0 to 100 ohms (0.1% RTS ± 0.10 ohm); 100 ohms to 4 kohm (0.3% RTS ± 0.10 ohm)
Load Coils 0 to 6 (± 1 accuracy)
Tracing Tone Frequency: 577.5 Hz (0.1% accuracy)
Range: > 15Vp-p (10% accuracy)
VF Noise
Impedance 600 ohms, Bridged (1% accuracy)
Filters C, CN, 3k, 15k, Psophometric
Metallic Noise 0 to 10 dBrn (± 2 dB accuracy); 10 to 100 dBrn (± 1 dB accuracy)
Power Influence 40 to 120 dBrn (± 2 dB accuracy)
VF Loss
Signal Level -40 to 10 dBm (± 0.5 dBm accuracy)
Frequency 100 Hz to 20 kHz (0.1% ± 2 Hz accuracy)
VF Longitudinal Balance (0 to 70 dB ± 2 dB)
Disturbing Frequency 200 to 2500 Hz (0.1% accuracy)
Impedance 600 ohms (1% accuracy)
Filters C, Psophometric
Send VF Tone
Frequency 100 Hz to 20 kHz (0.1% accuracy)
Amplitude (settable) Range -20 to 3 dBm
Amplitude Accuracy ± 0.5 dB (1 dB increments)
Impedance 600 ohms, 900 ohms (1% accuracy)
CopperPro Wideband Option
WB Noise/Level
Impedance Range 100 ohms, 135 ohms, Bridged (1% accuracy)
Filters E, F, G, None
Frequency 10 kHz to 1200 kHz (0.1% ± 508 Hz accuracy)
Amplitude -50 to 3 dBm (± 1 dB @ 135 ohms); -90 to -50 dBm (± 3 dB @ 135 ohms)
WB Loss
Impedance 135 ohms (1% accuracy)
Frequency 10 kHz to 1200 kHz (0.1% ± 508 Hz accuracy)
Magnitude 0 to 50 dB (± 1 dB accuracy); 50 to 70 dB (± 2 dB accuracy)
WB Longitudinal Balance (0 to 70 dB; ± 2 dB)
Disturbing Frequency 10 to 1200 kHz (0.1% accuracy)
Impedance 100 ohms, 135 ohms (1% accuracy)
Filters E, F, G, None
Send WB Tone
Frequency 10 kHz to 1200 kHz (0.1% ± 508 Hz accuracy)
Amplitude (fixed) 0.0 dBm (± 0.5 dB accuracy)
Impedance 100 ohms, 135 ohms (1% accuracy)
WB Impulse Noise
Impedance Range 100 ohms, 135 ohms, Bridged (1% accuracy)
Filters E, F, G, None
Test Time 1 to 1440 Minutes (1% accuracy)
Impulse Counter 0 to 9999
Counter Threshold -50 to 0 dBm (± 1 dB accuracy)
ADSL Auto-Test
Impedance 100 ohms Noise Filters: E, F, G, None
ADSL Standard ANSI, Full, G, Lite
Data Rate Prediction
Resolution 32 kb/s Downstream Rate
Range 0 to 8192 kb/s
Downstream Rate Accuracy ± 96 kb/s (3 units of resolution)
Upstream Rate Range 0 to 1024 kb/s
Upstream Rate Accuracy ± 64 kb/s (2 units of resolution)
CopperPro TDR Option
Impedance 135 ohms (1% accuracy)
Pulse-width 20, 100, 500, 1000, 2500, 5000 ns (10% ± 5 ns accuracy)
Vop Selection 0.300 to 0.999
Range (Vop=0.64) 30,000 ft (9144m)
Range Selection (Auto.) 10 ft to 48 kft (3 to 14630m)
Horizontal Resolution 0.5 to 156 ft (0.1524 to 47.5m)
Distance to Reflect.
Range 0 to 30,000 ft (0 to 9144m)
Accuracy 1% ± Vop Uncertainty
Vertical Gain
Range 80 dB
Accuracy 2 dB
Power Filter 5 kHz Highpass
Averaging Filter 4x Waveform Avg.
Input Protection ± 400 V pk


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