Intec ARGUS 300 Manual
  1. Manuals
  2. Brands
  3. Intec Manuals
  4. Test Equipment
  5. ARGUS 300
  6. Manual

Intec ARGUS 300 Manual

Copper test
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
ARGUS
ARGUS
Copper Test Manual
Version: 1.90 / EN
for ARGUS 300 and ARGUS 260
Important note:
Depending on the range of functions supplied, various menu options or functions may be
hidden.
1
ARGUS Copper Test Manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ARGUS 300 and is the answer not in the manual?

Questions and answers

Related Manuals for Intec ARGUS 300

Summary of Contents for Intec ARGUS 300

  • Page 1 ARGUS ARGUS Copper Test Manual Version: 1.90 / EN for ARGUS 300 and ARGUS 260 Important note: Depending on the range of functions supplied, various menu options or functions may be hidden. ARGUS Copper Test Manual...
  • Page 2 (print, photocopy, microfilm or any other method) without written consent. All rights are reserved. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without intec´s permission. ARGUS Copper Test Manual...

  • Page 3: Table Of Contents

    ARGUS Introduction ..................4 Safety information copper tests ............6 Copper tests ..................11 Copper tests multimeter ..............11 3.1.1 Auto test ..................11 3.1.2 Voltage measurement (U= and U~) ...........13 3.1.3 Capacitive symmetry measurement (CSym) ......15 3.1.4 Capacitance measurement (C) ..........18 3.1.5 Isolation resistance measurement (Iso.) ........22 3.1.6 Resistance symmetry (RSym) ..........24 3.1.7 Resistive fault location (RFL) .............30 3.1.8 Loop resistance measurement (R) ..........32...

  • Page 4: Introduction

    1 Introduction ARGUS Copper tests The copper tests for ARGUS 300 and ARGUS 260 enable you to detect dangerous voltages and currents early on and reliably assess the physical quality of the line – particularly when DSL synchronisation is not possible or the data rate is low due to asymmetry, interference sources or other mechanical line problems.
  • Page 5 1 Introduction Note: You can download the latest manuals at http://www.argus.info/service/downloads or simply contact one of our service representatives: intec Gesellschaft für Informationstechnik mbH Rahmedestr. 90 D-58507 Lüdenscheid Tel.: +49 (0) 2351 / 9070-0 Fax: +49 (0) 2351 / 9070-70 www.argus.info/en...

  • Page 6: Safety Information Copper Tests

    2 Safety information copper tests 2 Safety information copper tests There are the following safety specifications: 0 V to 200 V 0 V to 200 V 0 mA to 150 mA 105 VDC, max. 2 mA 13 VDC, max. 15 mA The following special instructions must be observed for the individual measurements: Voltage Be sure to observe the permissible measuring range specified above when measuring...
  • Page 7 2 Safety information copper tests Longitudinal conversion loss (LCL)/NEXT Before measuring, make sure that the voltage thresholds given in the table below are not exceeded during the measurement. When measuring LCL or NEXT using the ARGUS, any type of additional measurement lead can falsify the measurement. Both the length and the position of the measurement leads with respect to each other can influence the measurement result significantly.
  • Page 8 2 Safety information copper tests Measuring accuracies copper tests: Voltage: DC voltage measurement (U=): Measuring range: Resolution: Accuracy: 0 V - 9.99 V 0.01 V ±(0.5 % + 2 digits) 10 V - 200 V 0.1 V ±(0.5 % + 2 digits) AC voltage measurement (sine, 50 Hz) (U~): Measuring range: Resolution:...
  • Page 9 2 Safety information copper tests Isolation resistance measurement with 105 V, max. 2 mA (Iso.): Measuring range: Resolution: Accuracy: 0.1 kΩ - 99.9 Ω 0.1 kΩ ±(2 % + 1 digit) 100 kΩ - 999 kΩ 1 kΩ ±(2 % + 1 digit) 1 MΩ...
  • Page 10 2 Safety information copper tests Loop resistance measurement with 13 V, max. 15 mA (Iso.): Measuring range: Resolution: Accuracy: 1 Ω - 999.9 Ω 0.1 Ω ±(1 % + 3 digits) 1 Ω 1 kΩ - 9.999 kΩ ±(1 % + 1 digit) 10 Ω...

  • Page 11: Copper Tests

    3 Copper tests 3 Copper tests The ARGUS displays the menu options "Copper tests multimeter" and "Copper tests oscil- loscope" in the access menu. These tests can be used to detect dangerous voltages and currents at an early stage and to reliably assess the physical condition of the cable. In the following, the operation of the various functions is briefly presented.
  • Page 12 3 Copper tests See the respective chapters for details on the individual measurements. Select the profile to be editied and open it with <Edit>. The auto test it configured under Auto test configuration. You can obtain further information on the auto test settings in the ARGUSpedia on the instrument.

  • Page 13: Voltage Measurement (U= And U~)

    3 Copper tests 3.1.2 Voltage measurement (U= and U~) Voltage measurement enables detection of e.g. connected accesses (such as POTS) and supply voltages and external voltages, such as a connection to another line. In AC voltage measurement, the frequency (10 - 200 Hz) is additionally displayed. This also enables identification of call switching and coupled voltages as well as carrier or power fre- quencies.
  • Page 14 3 Copper tests You can obtain further information on the settings in the ARGUSpedia on the instrument. The continuing measurement is paused. <Hold> Continues measuring. <Go> ARGUS Copper Test Manual...

  • Page 15: Capacitive Symmetry Measurement (Csym)

    3 Copper tests 3.1.3 Capacitive symmetry measurement (C With the aid of capacitive symmetry measurement, it is possible to detect irregularities in the wiring that can result in signal distortions or transmission errors. The line must be open. In a real line, a network of serial and parallel capacitances is formed between the individual reference points, as illustrated in the following diagram.
  • Page 16 3 Copper tests See the chapter Technical data page 8 for information on measuring ranges, resolutions and accuracies of voltage measurement. Capacitive symmetry measurement settings Selection of the capacitive symmetry measurement After activating the capacitive symmetry measurement, the following is measured: - Cm (operating (mutual) capacitance) (in nF) - Cab (capacitance between Tip and Ring) (in nF) - CaE (capacitance between Tip and Ground) (in nF)
  • Page 17 3 Copper tests When a wire type is selected the specific capacitance and measured operating capacitance are used to calculate the line length. When a cable type has been selected, it is shown in the display. Under certain circumstances, the capacitive symmetry measurement can abort.

  • Page 18: Capacitance Measurement (C)

    3 Copper tests 3.1.4 Capacitance measurement (C) Capacitance measurement shows the typical input capacitance of connected devices or the capacitance of the open line. The line must be open. This can be ensured using the instrument kit function "open circuit". Before the measurement, a voltage check is performed in which the voltage limits given in the table (see page 7) may not be exceeded.
  • Page 19 3 Copper tests You can obtain further information on the settings in the ARGUSpedia on the instrument. When you select the susceptibility "insecure (fast)", the red warning "ATTENTION: susceptible" appears on the display. Once you have measured C-symmetry, you no longer need to measure capacitance.
  • Page 20 3 Copper tests 3.1.4.1 Calculating line length Every telecommunication cable has a certain loop resistance and operating capacitance per unit of length. As the type of cable laid is generally known, this value too is known. The values are design-related and relatively constant, as the cables are laid in the earth and subject to relatively minor temperature and humidity effects.
  • Page 21 3 Copper tests Starting capacitance measurement In this example, capacitance measurement is carried out with a measuring frequency of 8 Hz and the values stored for wire type 2. It is important to select a cable type, the default is „No cable type“. In this example (see picture on the right), a capacitance of approx.

  • Page 22: Isolation Resistance Measurement (Iso.)

    3 Copper tests 3.1.5 Isolation resistance measurement (Iso.) Isolation resistance measurement can indicate damage to cable isolation, moisture penetration or oxidised contact points on the line. A voltage check is performed before the measurement in which the voltage limits given in the table (see page 7) may not be exceeded. See the chapter Technical data page 9 for information on measuring ranges, resolutions and accuracies of isolation resistance measurement.
  • Page 23 3 Copper tests You can obtain further information on the settings in the ARGUSpedia on the instrument. When Isolation resistance measurement is started, a warning is displayed when a measurement voltage of 105 V is used. The ARGUS generates a voltage of 105 V at the start of the measurement. Special care is necessary due to this generated voltage.

  • Page 24: Resistance Symmetry (Rsym)

    3 Copper tests 3.1.6 Resistance symmetry (R This measurement determines the resistance symmetry of a line. Of primary importance for resistance symmetry are the two resistances Ra and Rb, i.e. the resistances of the two sig- nal wires. To great a difference in resistance between the two wires can result in signal dis- tortions and transmission errors.
  • Page 25 3 Copper tests Special features for RE (Examples): 1a. Measuring site, e. g. demarcation point: The demarcation point is not earthed. The Copper box (GND socket) is disconnected from the shielding terminal of the demarcation point. The measurement works when the cable shield os continuous.
  • Page 26 3 Copper tests 2. Measuring site, e. g. demarcation point: The demarcation point is not earthed. The cable shield is interrupted at the site shown in the illustration. However, the resistance symmetry measurement can still work if the cable shield at the demarcation point is connected to one of the earthing points shown in the pic- ture.
  • Page 27 3 Copper tests 4. If an intact conductor is used as an auxilliary conductor instead of ground, RE=RH, RH is then entirely on the order of magnitude of Ra and Rb. A complete twisted pair (Tip-Ring) can also be used for this. Calculation basis: The following calculation basis is used for a 3-way measurement Rab, RaE, RbE, with R1, R2, R3 as the total resistance of the respective line pairs.
  • Page 28 3 Copper tests Resistance symmetry measurement settings After selecting the "Menu" softkey, the following settings can be made: - Wire Types - Susceptibility - Remote Kit Command - Remote Kit You can obtain further information on the settings in the ARGUSpedia on the instrument.
  • Page 29 3 Copper tests Display: - Loop resistance (in Ω) (resistance of Tip-wire) (in Ω) (resistance of Ring-wire) (in Ω) (resistance of Ground) (in Ω) - ΔR (absolute deviation between Ra and Rb) (in Ω) - Relative Symmetry (in %) - Wire Type (in Ω/km) - Line Length (in m) ARGUS Copper Test Manual...

  • Page 30: Resistive Fault Location (Rfl)

    3 Copper tests 3.1.7 Resistive fault location (RFL) This measurement can display resistance to fault (R ), distance to fault, resistance from fault to short circuit (R ), loop resistance (R ), line length, and fault resistance (R fault After selecting the "Setting" softkey, the following settings can be made: Temperature Wire Types Susceptibility...
  • Page 31 3 Copper tests In this example, the loop resistance is displayed. ARGUS Copper Test Manual...

  • Page 32: Loop Resistance Measurement (R)

    3 Copper tests 3.1.8 Loop resistance measurement (R) Loop resistance measurement enables you e.g. to detect short-circuits and estimate line lengths, among other things. A voltage check is performed before the measurement in which the voltage limits given in the table (see page 7) may not be exceeded. A loop must be created.
  • Page 33 3 Copper tests When you select the susceptibility "Insecure (fast)", the red warning "ATTENTION: susceptible" appears on the display. Loop resistance is always measured continuously. In this example, a loop resistance of 132,9 Ω is measured. Loop resistance measurement can also return no result (---) e.g. due to excessive influence.

  • Page 34: Dc Current Measurement (I=)

    3 Copper tests 3.1.9 DC current measurement (I=) DC current measurement enables detection e.g. of feeds, emergency feeds or line termina- tions. The measuring range, resolution and accuracy of DC current measurement are described in the chapter Technical data, see page 10. After selecting the "Menu"...
  • Page 35 3 Copper tests In this example, a DC current of 24.00 mA is measured. Min/Max: Display of minimum and maximum measured values. ARGUS Copper Test Manual...

  • Page 36: Longitudinal Conversion Loss (Lcl)

    3 Copper tests 3.1.10 Longitudinal conversion loss (LCL) LCL measurement (asymmetry attenuation) looks at the balance between the Tip-wire with respect to Ground (GND) compared to the Ring-wire with respect to Ground. In this mea- surement, a tone is fed symmetrically to the wires with respect to Ground at 1 MHz. If a dif- ference can be measured between the two wires, an asymmetry is present.
  • Page 37 3 Copper tests In this example, an asymmetry attenuation of 59.8 dB is measured. Min/Max: Display of minimum and maximum measured values. ARGUS Copper Test Manual...

  • Page 38: Near-End Crosstalk (Next)

    3 Copper tests 3.1.11 Near-end crosstalk (NEXT) The ARGUS generates a 1 MHz tone on line pair 1 and measures the crosstalk on the adjacent line pair 2, which can cause severe performance issues for DSL. A customer's line can pass through multiple segments. In this case, the measurement must be performed segment by segment, and different line pairs may need to be used as the measuring lines.
  • Page 39 3 Copper tests After selecting the "Menu" softkey, the following settings can be made: - Remote Kit Command - Remote Kit - Information Bell You can obtain further information on the settings in the ARGUSpedia on the instrument. In this example, a crosstalk attenuationof 37.6 dB is measured. Min/Max: Display of minimum and maximum measured values.

  • Page 40: Signature Detection/Termination Detection

    3 Copper tests 3.1.12 Signature detection/termination detection Signature detection makes it possible to detect e.g. a passive test termination (PPA). A voltage check is performed before the measurement in which the voltage limits given in the table (see page 7) may not be exceeded. Circuit diagrams: Signature (1TR112) PPA (inverted)
  • Page 41 3 Copper tests You can obtain further information on the settings in the ARGUSpedia on the instrument. In this example, a passive test termination (PPA) was detected between Tip and Ring. ARGUS Copper Test Manual...

  • Page 42: Fast Cable Check

    3 Copper tests 3.1.13 Fast cable check The fast cable check checks the correctness of a three-pole connection (Tip/Ring/Ground) against a loop, in other words whether Tip/Ring/Ground is properly connected for subsequent tests. To achieve this, the cable check measures the resistance. All values below a threshold of 10 kΩ, are interpreted as a loop, and all values greater as an open line.
  • Page 43 3 Copper tests The result of the check is displayed, e.g. OK or open. ARGUS Copper Test Manual...

  • Page 44: Remote Kit Control (Rem.)

    3 Copper tests 3.1.14 Remote kit control (Rem.) The Copper Box remote instrument kit control (Rem.) function enables the ARGUS to con- trol commonly available electronic instrument kits, such as the TX915/916. Before using the remote control function, make sure that the voltage limits specified in the table on page 7 are not exceeded during the measurement.
  • Page 45 3 Copper tests In this example, the command "Exchange connect" is selected (see picture on the left). The command "Exchange connect" is sent to the remote unit (see picture on the right). You can obtain further information on the settings in the ARGUSpedia on the instrument.

  • Page 46: Copper Tests Oscilloscope

    3 Copper tests Copper tests Oscilloscope 3.2.1 Line Scope With the line scope, ARGUS performs a real-time analysis on the connected line. The high- ohm line scope can e.g. be patched into an existing link between modem and DSLAM. You can display the results in either the time or frequency range (FFT). The voltage on the line may not exceed 200 V DC or 100 V The line scope can identify a variety of states or occurrences on the line.
  • Page 47 3 Copper tests Connection example: Gain: To ensure optimum detection of different signals, match the gain (y-axis) with the reduction of the frequency range shown (x-axis). The ARGUS always begins with the lowest gain (- 26 dB in the frequency range up to 3 MHz). Measuring range: -130 to +10 dBm/Hz. Gain-Y: Gain settings: -26 dB, - 20 dB, 0 dB, 20 dB The ARGUS displays all measuring results as dBm/Hz values.

  • Page 48: Graph Functions

    3 Copper tests 3.2.2 Graph functions The graph functions Zoom and Cursor enable detailed analyses of the graphs. Opens graph functions. <Menu> Zoom: If the magnifying glass is on a white background, the graphic has not yet been zoomed. If the magnifying glass is on a green background, the graphic has been zoomed in.
  • Page 49 3 Copper tests Restores measuring range. <Menu> Total power : The ARGUS displays the total power. The total power is the sum of all individual power measurements (Δf) over the entire visible range . Restores total power display <Menu> Time: In the line scope, you can switch from the frequency range to the time..
  • Page 50 3 Copper tests A suitable current clamp is available as an accessory for the ARGUS; please ask our Support team. Reference curve: The reference curve enables e.g. comparison of the signal from one line with that from another. To do this, start the line scope and connect it to line a. After obtaining the desired reference signal by setting the measuring range in the display, set the curve.

  • Page 51: Tdr

    3 Copper tests 3.3 TDR The TDR function enables you to determine line lengths in realtime or localise interference sources. Correct interpretation of the pulses displayed by the ARGUS permits e.g. detec- tion of stub lines, poor contacts or short-circuits. For this purpose, the ARGUS transmits a pulse on the connected line and displays its reflection response.
  • Page 52 3 Copper tests After selecting "Edit", the velocity of propagation, line resistance, capacitance and name can be set. You can obtain further information on the wite types in the ARGUSpedia on the instrument. TDR status display: The ARGUS displays possible interference sources on the copper twisted pair directly. The adjustable range, the gain and the graph functions permit more detailed analysis.

  • Page 53: Graph Functions

    3 Copper tests Range-X: Sets the displayed measuring range. Every press of the cursor key halves or doubles the displayed range. 3.3.1 Graph functions The graphic functions Zoom and Cursor enable detailed analyses of the graphs. Opens graph functions. <Menu> Zoom: When the magnifying glass shown in the display rests on a white background, it has not yet been zoomed.
  • Page 54 3 Copper tests If the stop function is activated, the cursor can be moved with greater speed. Measuring range: When the TDR function starts, it is in the measuring range in the status display. You can set the range (x) and the gain (y) in the measuring range. If you have hidden the measuring range in order to work with the cursor or zoom, you can restore it: Restores the measuring range.
  • Page 55 3 Copper tests Show reference curve selection. Set reference curve. <Set> When the reference curve is set, an orange line is displayed in the graph. Hide reference curve. <Hide> <Set> Set a new reference curve. Run/Hold: You can stop and restart a running test (realtime mode) at any time. Stop and restart test.

  • Page 56: Examples

    3 Copper tests 3.3.2 Examples The following signal forms can help you in interpreting the reflection responses that ARGUS displays. Open cable The reflected pulse is positive. No proxi- mate interference sources or the far end of the line can be seen. Short-circuit The reflected pulse is negative.
  • Page 57 3 Copper tests Stub line The beginning of a stub line appears in the form of a negative reflection, followed by a positive reflection corresponding to the length of the stub line when the end of the stub line is open. Loading coils Loading coils deployed on the line are optimally designed for transmitting voice...
  • Page 58 3 Copper tests Loose/intermittent contact Realtime operation is extremely suitable for detecting intermittent contacts. The amplitude of the positive reflections varies depending on the intermittent contact frequency. Open shielding Broken or open cable shielding can be detected by connecting the “a“ and “b“ cores to the ARGUS via one contact and the shielding to a second.

  • Page 59: Appendix

    4 Appendix 4 Appendix A) Hotkeys Graphic functions: After starting the xDSL interface or a test, like Line scope or TDR, you can use the following graphic functions in the result displays: Hotkey Line Scope Number key 1 Number key 2 Zoom Zoom Number key 3...

  • Page 60: B) Software Licenses

    In the event that you are interested in the sources licensed under GPL or LGPL, please contact support@argus.info. A machine-readable copy of the source code can be obtained from intec Gesellschaft für Informationstechnik mbH for a minimal fee - to cover the cost of physically copying the code. This offer is valid for 3 years.

  • Page 61: C) Abbreviations

    4 Appendix C) Abbreviations Characters Absolute deviation between CaE and CbE Δ Bandwidth Δ Absolute deviation between Ra and Rb Δ Ω Ohm (unit of electrical resistance) a-wire (tip) Ampere Alternating Current or Access Server b-wire (ring) 1. Celsius 2. Capacitance Speed of light Operating capacitance (mutual capacitance) Parallel capacitance...
  • Page 62 4 Appendix Iso. Isolation resistance measurement Longitudinal Conversion Loss Meter Main Distribution Frame milli Volt peak-to-peak NEXT Near-End-Crosstalk Passive test termination Pol. Polarity 1. Resistance (electrical resistance) 2. Ring (b-wire) Resistance a-wire Resistance b-wire Resistance (R) and capacitance (C) Ground resistance Rem.
  • Page 63 4 Appendix Universal Serial Bus Volt Velocity of Propagation Volt peak-to-peak WEEE Waste Electrical and Electronic Equipment ARGUS Copper Test Manual...

  • Page 64: D) Index

    Copper tests oscilloscope ..................... 46 DC current measurement ..................... 34 Fast cable check ......................42 Graphic functions ......................59 Index ..........................64 intec Gesellschaft für Informationstechnik mbH ............. 5 Internet address ......................5 Introduction ........................4 Isolation resistance measurement ................22 Line scope Connection example .....................
  • Page 65 TDR ..........................51 Examples .......................56 Graph functions .....................53 Test overview ........................59 Version ..........................1 Voltage measurement ....................13 ARGUS Copper Test Manual...

This manual is also suitable for:

Argus 260

Table of Contents