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DATACOM TEXTRON LANcat Series User Manual

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Summary of Contents for DATACOM TEXTRON LANcat Series

  • Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
  • Page 2 LANcat Series Cable Testers User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 3 Datacom Textron may make improvements or additions to this publication or their products at any time without notice. Datacom Textron shall not be liable for technical or editorial errors or omissions contained herein. LANcat is a trademark of Datacom Textron.
  • Page 4 (2) years following the date of purchase of the tester. Any instrument claimed to be defective during the warranty period should be returned to Datacom Textron’s Factory Service Center. Refer to the chapter on Technical Support and Service for further instructions.

  • Page 5: Table Of Contents

    Table of Contents Table of Contents 1. INTRODUCTION Overview of Features ................ 1-2 Battery Information ................1-9 Display Conventions................ 1-11 2. GETTING STARTED Initial Instrument Set Up ..............2-1 Typical Test Set Up ................2-5 Selecting a Cable Test Standard............2-9 System Integrity Pre-Test..............
  • Page 6 LANcat User Manual Delay/Delay Skew ................5-20 Attenuation ..................5-22 ACR....................5-26 Noise ....................5-28 Pair Reversal Test................5-31 Repeatability Test................5-32 Impedance ..................5-33 Resistance (LANcat TwoWay) ............5-34 Cable Toner..................5-36 6. PRINTING, UPLOADING, VIEWING TEST RESULTS Connecting To a PC or Printer ............6-1 Printing/Uploading Test Results ............
  • Page 7 Table of Contents Upgrading the LANcat ..............9-11 10. ETHERNET TRAFFIC ANALYSIS Running Traffic Test................ 10-2 Viewing Traffic Results..............10-3 11. TECHNICAL SUPPORT AND SERVICE LANcat Self Test ................11-2 APPENDIX A. TEST STANDARDS Installed Link Test Configuration............A-1 Channel Testing ................A-2 Basic Link Testing ................
  • Page 8 LANcat User Manual Page iv Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 9: Introduction

    Chapter 1 Introduction 1. INTRODUCTION The LANcat Series are precision instruments for the certification and troubleshooting of LAN cable installations. With plug-in Performance Modules, the LANcat Series are capable of testing a wide variety of cable types including Category 5/Class D twisted pair, coaxial cable, and fiber optic cable.

  • Page 10: Overview Of Features

    LANcat User Manual Overview of Features The features and functions of the LANcat include: TESTING FEATURES • OneWay or TwoWay system testing. • Tests UTP, ScTP, coaxial, STP, and fiber optic cable. • Certifies twisted pair cable up to EIA/TIA 568A Category 5 and ISO/IEC 11801 Class D (100 MHz).
  • Page 11 Chapter 1 Introduction PRODUCT FEATURES • Stores up to 500 Autotest results on a OneWay System, or 1000 for a TwoWay System. • Graphical user interface on the main and remote units allowing test results to be viewed at both ends. •...
  • Page 12 LANcat User Manual Figure 1-1. LANcat Overview of Features Page 1-4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 13 Chapter 1 Introduction Tests and functions accessible using the rotary dial are described in Figure 1-2. AUTOTEST PRINT QUICK WIRE SETUP LENGTH EXTENDED TRAFFIC FUNCTIONS REMOTE Figure 1-2. Function Dial Dial Position Function AUTOTEST Performs a preprogrammed suite of tests, which are required to certify a cable installation.
  • Page 14 LANcat User Manual SEND FUNCTION (TWO-WAY SYSTEM) A Send function is available with the LANcat TwoWay System. This function allows you to transmit on-screen test results to the unit at the other end. To use the Send function, simply complete the test, and when the screen you want to transmit is displayed, press the corresponding soft function key.
  • Page 15 Chapter 1 Introduction PERFORMANCE MODULE The LANcat is designed with removable performance modules for attaching to various cable types and cable connectors. The key to the LANcat’s high measurement accuracy is using the proper performance module. To remove a module, loosen the thumbscrews at either side of the module until the screws are free of the retainers.
  • Page 16 LANcat User Manual STATIC AWARENESS The LANcat contains static sensitive electronics inside the main body. Use appropriate precautions when removing and installing performance modules. REMOTE UNIT (ONE-WAY SYSTEM) The Remote Unit is connected at the far end of the cable when testing twisted pair cable.

  • Page 17: Battery Information

    Chapter 1 Introduction Battery Information The LANcat handheld is shipped with eight AA alkaline batteries. The Remote Unit is shipped with four AA alkaline batteries. An optional rechargeable nickel metal hydride (NiMH) battery pack may be ordered for the LANcat handheld. A low battery message displays on the LCD screen when it is time to replace the batteries.
  • Page 18 LANcat User Manual CHANGING THE BATTERIES To change the batteries in the LANcat: 1. Remove the battery compartment cover, located on the back of the instrument (refer to Figure1-5). 2. Remove the batteries. 3. Install new batteries paying attention to the polarity markings on the inside of the battery well.

  • Page 19: Display Conventions

    Chapter 1 Introduction Display Conventions ARROW KEYS An up/down arrows symbol  (see detail in Figure 1-6) appears next to an item on the LCD display to indicate that you can use the arrow keys to make a different selection. For example, in the figure below, the arrows appear next to the word “Link”...
  • Page 20 LANcat User Manual SCROLL BARS When there are more selections available than can fit on one LANcat screen, scroll bars will appear. For example, in the figure below, the scroll bar appears above “Save.” To use the scroll bar, use the arrow keys to move the scroll-bar indicator as well as to highlight a new selection.

  • Page 21: Getting Started

    Chapter 2 Getting Started 2. GETTING STARTED This chapter provides a brief overview to the use of the LANcat for testing twisted pair cabling. It is intended for those users with prior cable testing experience who want to get started quickly. It covers only the basics on initial instrument set up, connections to the cable and the Autotest function.
  • Page 22 LANcat User Manual SETTING UP THE LANCAT TWO-WAY SYSTEM To set up the LANcat TwoWay System: 1. Set the remote unit’s dial to REMOTE. 2. Press the remote unit power button on. The display will read 3. Set the main unit’s dial to the test or function you want to perform.
  • Page 23 Chapter 2 Getting Started NVP CALIBRATION In order to make accurate cable length measurements, the correct cable NVP value must be set in the LANcat. A typical NVP value will be automatically selected by the LANcat depending on the test standard that you choose.
  • Page 24 LANcat User Manual Why do I need to set cable NVP? order make accurate cable length measurements, the correct cable Nominal Velocity of Propagation (NVP) value must be set in the LANcat. The NVP is a measure of how fast an electrical pulse travels down a cable compared to the speed of light.

  • Page 25: Typical Test Set Up

    Chapter 2 Getting Started Typical Test Set Up BASIC LINK TESTING Figure 2-1 illustrates a typical test set up using a TwoWay System to test a Basic Link, as defined by TIA/EIA TSB-67. Figure 2-1. Typical TwoWay Test Set Up For Testing a Basic Link Page 2-5 Artisan Technology Group - Quality Instrumentation ...
  • Page 26 LANcat User Manual Figure 2-2 illustrates a typical test set up using a OneWay System to test a Basic Link as defined by TIA/EIA TSB-67. Figure 2-2. Typical OneWay Test Set Up For Testing a Basic Link NOTE To certify a cable link with Level II accuracy, you must test the Basic Link using the LANcat Modular Plug Performance Module.
  • Page 27 Chapter 2 Getting Started CHANNEL TESTING Figure 2-3 illustrates a typical test set up using a TwoWay System to test a Channel as defined by TIA/EIA TSB-67. Figure 2-3. Typical TwoWay Test Set Up For Testing a Channel Page 2-7 Artisan Technology Group - Quality Instrumentation ...
  • Page 28 LANcat User Manual Figure 2-4 illustrates a typical test set up using a OneWay System to test a channel as defined by TIA/EIA TSB-67. Figure 2-4. Typical OneWay Test Set Up For Testing a Channel NOTE A channel can be certified for conformance to the TIA/EIA TSB-67 Link Performance Standard, however, accuracy will be less than Level II requirements.

  • Page 29: Selecting A Cable Test Standard

    Chapter 2 Getting Started Selecting a Cable Test Standard The Cable Test Standard used by the LANcat to certify cables may be changed any time  appears next to the cable name. To select a different cable test standard: Set dial to Autotest, Quick , Wire Map, Length or Traffic. Press either arrow key to display the cable standard library and select a different cable test standard.

  • Page 30: System Integrity Pre-Test

    3. Run Pair Reversal (Extended Functions, see Chapter 5). 4. Run Repeatability (Extended Functions, see Chapter 5). 5. Run Autotest (CAT3 Basic Link, see Chapter 3). 6. If FAIL occurs on any test results, contact Datacom Textron Technical Support for assistance (see Chapter 11).

  • Page 31: Autotest

    Chapter 3 Autotest 3. AUTOTEST Autotest is a preprogrammed suite of tests which are required to certify a cable installation. • Wire Map • Near-End Crosstalk (NEXT) at both ends for TwoWay testing • Attenuation • ACR • Length The following tests may be added to the Autotest suite of tests by defining a Custom Cable standard (see Appendix A, Defining Custom Standards): •...

  • Page 32: Running Autotest

    LANcat User Manual Running Autotest TWO-WAY SYSTEM 1. Connect one end of cable to the main unit and the other end to the Remote Unit. 2. Set the Remote Unit’s dial to REMOTE. 3. Set the Main Unit’s dial to AUTOTEST. The test runs automatically, then displays the results.(Press the arrow keys to change the cable test standard).
  • Page 33 Chapter 3 Autotest Running Autotest Autotest Results NOTE If the LANcat fails any test, it will stop and display the failure. You may continue testing by pressing the CONTINUE (F4) softkey. Page 3-3 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 34: Viewing Autotest Results

    LANcat User Manual Viewing Autotest Results Autotest results are displayed in either summary or detailed mode. This section describes a general procedure for reviewing Autotest results including summary screens for Wire Map, NEXT, Attenuation, ACR, Length and Propagation Delay tests, and detailed test results for NEXT and Attenuation.
  • Page 35 Chapter 3 Autotest SUMMARY RESULTS 1. Press VIEW (F3) from the Autotest results screen. 2. Press the arrow keys to view additional summary test result screens. 3. Press SAVE (F4) or ENTER at any time to save the Autotest results. 4.
  • Page 36 LANcat User Manual Marginal Test Results A PASS* or FAIL* result indicates that a measured NEXT or attenuation value is close enough to the Test Standard that it is within the measurement uncertainty of the LANcat. As a result, the PASS or FAIL judgment is uncertain, and therefore the LANcat can not determine with confidence that the link conforms to the Test Standard.
  • Page 37 Chapter 3 Autotest DETAILED RESULTS Some test results screens have a DETAIL softkey that you can press to view more information about the test results (e.g., NEXT summary screen). 1. Press DETAIL (F3) from the Autotest results screen. 2. Press SUMMARY (F3) to return to the test result SUMMARY screen.

  • Page 38: Saving Autotest Results

    LANcat User Manual Saving Autotest Results The LANcat can store the results of up to 500 Autotests, which can later be uploaded to a PC or printer. Refer to Chapter 6, Printing/Uploading Test Results, for the discussion on how to output test results.
  • Page 39 Chapter 3 Autotest CAUTION If you choose a report number that is in use, LANcat beeps and displays the message “In Use” beneath the report number. The LANcat has no overwrite protection. Nothing prevents you from saving a report to the same number as a previous report number and erasing the earlier one.
  • Page 40 LANcat User Manual Entering A Circuit Identification Name To change circuit identification: 1. The LANcat will display a default circuit identification unless disabled by the Setup routine. To speed up entering circuit identifiers, the LANcat can automatically increment the last circuit identifier.

  • Page 41: Linktalk ™ (Lancat Twoway)

    Chapter 3 Autotest LinkTalk ™ (LANcat TwoWay System) LinkTalk temporarily converts the LANcat TwoWay system to an audio-communication system. LinkTalk enables bi-directional, one-way (half-duplex) voice communication between the main unit and the remote. 1. Attach earphones to jack on lower right side of both main and remote units.
  • Page 42 LANcat User Manual 4. Press PUSH TO TALK (F4) on either the main or remote to talk to the person at the other end of the cable. 5. Press the arrow keys to adjust earphone volume up or down. 6. Press ESC to exit TALK mode. INTERACTION OF TALK AND SEND FUNCTIONS After sending a test result screen to the Remote using the SEND button, the TALK feature can be activated as shown below -...

  • Page 43: Quick Check

    Chapter 4 Quick Check 4. QUICK CHECK Quick Check is an abbreviated Autotest, designed to complete in less than 10 seconds. It is useful for quick installation checks. • Wire Map • Near-End Crosstalk (NEXT) at both ends for TwoWay testing •...

  • Page 44: Running Quick Check

    LANcat User Manual Running Quick Check TWO-WAY SYSTEM 1. Connect one end of the cable to the main unit and the other end to the Remote Unit. 2. Set the Remote Unit’s dial to REMOTE. 3. Set the main unit’s dial to QUICK . The test begins automatically.
  • Page 45 Chapter 4 Quick Check ONE-WAY SYSTEM 1. Connect one end of cable to the LANcat and the other end to the Remote Unit. 2. Set dial to QUICK . The test begins automatically. (Press the arrow keys to change the cable test standard). 3.

  • Page 46: Viewing Quick Check Results

    LANcat User Manual Viewing Quick Check Results Viewing the results of Quick Check is the same as for Autotest, except that they cannot be saved. Refer to Viewing Autotest Results in Chapter 3, Autotest. Marginal Test Results A PASS* or FAIL* result indicates that a measured NEXT or attenuation value is close enough to the Test Standard that it is within the measurement uncertainty of the LANcat.

  • Page 47: Cable Test Descriptions

    Chapter 5 Cable Test Descriptions 5. CABLE TEST DESCRIPTIONS The following section describes each test and how to run each test individually. Refer to Chapter 7, Testing Twisted Pairs, for detailed test results interpretation and more troubleshooting tips. While it is usually recommended to use Autotest for most cable testing, individual cable tests may be useful in troubleshooting specific cable problems.

  • Page 48: Wire Map

    LANcat User Manual Wire Map Wire Map checks twisted pair cable for pin-to-pin and shield continuity, and checks for split pairs. Wire Map is one of the tests run during Autotest and Quick Check. It can also be run individually. •...
  • Page 49 Chapter 5 Cable Test Descriptions VIEWING WIRE MAP RESULTS The results of the Wire Map test are displayed on the LANcat screen. The following illustrations show possible wiring faults. Split Pair Crossed Pair Crossed Pair Split Pair Reversed Pair Short Open Page 5-3 Artisan Technology Group - Quality Instrumentation ...

  • Page 50: Next

    LANcat User Manual NEXT NEXT (Near-End Crosstalk) is a measure of noise coupled between two twisted pairs measured at the same end of the cable as the disturbing signal source. NEXT is measured using all pair combinations when testing a twisted pair cable.
  • Page 51 Chapter 5 Cable Test Descriptions Selecting NEXT NOTE When the NEXT test is performed on a TwoWay System, both ends are tested. Page 5-5 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 52 LANcat User Manual VIEWING NEXT RESULTS The NEXT of each pair combination is compared to the selected cable test standard and pass or fail is indicated. NEXT Summary Results The worst measured crosstalk is shown in the detailed test display. The display indicates the frequency of this measurement, the measured value in decibels (dB) and the test limit.
  • Page 53 Chapter 5 Cable Test Descriptions Marginal Test Results A PASS* or FAIL* result indicates that a measured NEXT value is close enough to the Test Standard that it is within the measurement uncertainty of the LANcat. As a result, the PASS or FAIL judgment is uncertain, and therefore the LANcat can not determine with confidence that the link conforms to the Test Standard.
  • Page 54 LANcat User Manual VIEWING A GRAPH OF NEXT RESULTS To view a graph of the NEXT test results: 1. From the detail or Summary Results screen, press GRAPH (F2). Graph of NEXT Results Cursor Test Limit Test Result 2. Press PAIR (F1) to display the results for a different pair combination.

  • Page 55: Power Sum Next

    Chapter 5 Cable Test Descriptions Power Sum NEXT NEXT (Near End Crosstalk) is a measure of noise coupled from one pair to another pair within a four pair cable. Power Sum NEXT is a sum of the pair-to-pair NEXT coupled from all adjacent pairs.
  • Page 56 LANcat User Manual Emerging high speed Networks (e.g. 622 Mbps ATM, Gigabit Ethernet) are using several pairs for transmitting data. Power Sum NEXT is an important measure of the crosstalk noise coupled from these transmitters to the receive pair. Power Sum NEXT is tested only during an Autotest. It is included in Autotest for the enhanced Category 5 and Class D cable test standards (e.g.
  • Page 57 Chapter 5 Cable Test Descriptions To View the details of the Power Sum NEXT test: 1. From the Power Sum NEXT summary result screen, press DETAIL (F3). Detailed Power Sum NEXT Results 2. On a TwoWay System, press SEND (F1) to send the results to the Remote Unit.
  • Page 58 LANcat User Manual VIEWING A GRAPH OF POWER SUM NEXT RESULTS To view a graph of the Power Sum NEXT test results: 1. From the detail or Summary Results screen, press GRAPH (F2). Graph of Power Sum NEXT Results Cursor Test Limit Test Result 2.

  • Page 59: Cable Grading

    Chapter 5 Cable Test Descriptions Cable Grading Cable Grading refers to the performance grading of cable based on the NEXT performance relative to the test limit. A higher grade cable exceeds the test limit by a greater margin. Cable grading is only available for Category 5, Category 5 Plus, Class D and Class D Plus Cable Test Standards.
  • Page 60 LANcat User Manual Cable grading can only be run as part of Autotest and must be enabled. To enable cable grading, you must create a custom Cable Test standard based on a Cat 5, Cat 5 Plus, Class D, or Class D Plus Cable Test Standard - see Appendix A.
  • Page 61 Chapter 5 Cable Test Descriptions VIEWING CABLE GRADING RESULTS The screen below appears at the conclusion of an Autotest. The overall grade of the cable will be displayed below the pass/fail indication (in this case, the cable is a grade 4 cable). The “overall grade”...

  • Page 62: Length

    LANcat User Manual Length The Length test measures the cable length and the distance to a cable fault, such as a short, open or impedance change. The Length test locates significant impedance changes or anomalies in a cable segment that may be caused by cable damage or inadequate connections at patch panels, cross-connect blocks, 8- position modular plug connectors, or wall plates.
  • Page 63 Chapter 5 Cable Test Descriptions RUNNING LENGTH TEST INDIVIDUALLY 1. Connect one end of the cable under test to the LANcat. 2. Set dial to LENGTH. The test begins scanning immediately. 3. Press the arrow keys to select another cable test standard. NOTE For accurate results, do not use the Remote Unit when performing a Length measurement test, except...
  • Page 64 LANcat User Manual NOTES 1. Some variation in the measured length of wire pairs within the same cable is considered normal. This is due to the difference in construction of the individual pairs. Length variation from pair to pair will be greater for longer cable lengths.
  • Page 65 Chapter 5 Cable Test Descriptions To view more information about the Length test results: 1. Press DETAIL (F3). Detailed Length Test Results Pair Propagation Delay Delay to Anomaly 1 No 2nd Anomaly Detected 2. Press SUMMARY (F3) or ESC to return to the Length test summary display.

  • Page 66: Delay/Delay Skew

    LANcat User Manual Delay/Delay Skew Delay is a measure of the time electrical signals take to propagate from one end of the cable to the other end. The difference in propagation delays from one cable pair to another is called Delay Skew. The Delay test measures and displays the propagation delay of each wire pair.
  • Page 67 Chapter 5 Cable Test Descriptions VIEWING DELAY/DELAY SKEW RESULTS At the conclusion of an Autotest or Quick Check: 1. Press VIEW (F3) to view test results. 2. Press  or  until Delay test summary screen is displayed. Delay Test Summary Shortest Pair Press  to view Delay Skew test summary.

  • Page 68: Attenuation

    LANcat User Manual Attenuation Attenuation measures the reduction in the signal level as it travels over the length of a cable. Attenuation is measured over a range of frequencies. The amount of attenuation loss is expressed in decibels (dB). A signal is transmitted by the remote unit and received by the main unit (i.e., the signal is OneWay).
  • Page 69 Chapter 5 Cable Test Descriptions VIEWING ATTENUATION RESULTS To view the test standard specification values: 1. Press SPEC (F3). Attenuation Test Summary Attenuation Test Summary (Test Specification Shown) Test Specifications 2. Press START (F1) to re-start the Attenuation test. Page 5-23 Artisan Technology Group - Quality Instrumentation ...
  • Page 70 LANcat User Manual VIEWING A GRAPH OF ATTENUATION RESULTS 1. From the test summary screen, press GRAPH (F2) to view the graph of the Attenuation test results. Graph of Attenuation Results (Results shown for pair 7,8) Cursor Test Limit Test Result 2.
  • Page 71 Chapter 5 Cable Test Descriptions Marginal Test Results A PASS* or FAIL* result indicates that a measured NEXT or attenuation value is close enough to the Test Standard that it is within the measurement uncertainty of the LANcat. As a result, the PASS or FAIL judgment is uncertain, and therefore the LANcat can not determine with confidence that the link conforms to the Test Standard.

  • Page 72: Acr

    LANcat User Manual Attenuation-to-Crosstalk Ratio (ACR) is the difference between crosstalk and attenuation, measured in dB, at a given frequency. ACR is computed based upon the measured values of attenuation and NEXT. A positive ACR is necessary to assure that a signal at the receiving end of a channel is stronger than the crosstalk interference imposed from adjacent wire pairs.
  • Page 73 Chapter 5 Cable Test Descriptions VIEWING ACR RESULTS For each pair combination the ACR is displayed along with the frequency. The attenuation value used is from the receive pair (e.g., pair 3,6 of 12/36). ACR Detail Screen Press START (F1) to restart the test. NOTE Minimum ACR is not presently specified in most link test standards (such as TIA TSB-67) or network...

  • Page 74: Noise

    LANcat User Manual Noise Impulse Noise is non-repetitive electrical spikes or pulses caused by external electro-magnetic fields. Impulse noise is one of the primary causes of inconsistent performance on unshielded twisted pair networks. The Noise test counts noise impulses (spikes) greater in amplitude than a minimum threshold on an idle twisted pair cable segment and provides a report of the results.
  • Page 75 Chapter 5 Cable Test Descriptions RUNNING NOISE The Noise test runs continuously until stopped by the user. 1. If testing a twisted pair cable, connect one end of the cable under test to the main unit and the other end to the remote unit.
  • Page 76 LANcat User Manual VIEWING NOISE RESULTS The display provides a continuously updated, real-time report illustrated by the following figure: Noise Results NOTE When testing a 10BASE-T cable per the IEEE 802.3 specification, the maximum allowable impulse noise rate is 0.2 impulses per second with a 260 mV noise threshold.

  • Page 77: Pair Reversal Test

    Chapter 5 Cable Test Descriptions Pair Reversal Test The Pair Reversal Test switches the transmit and receive pairs used for NEXT measurement and verifies that the resulting measurements are essentially unchanged. The Pair Reversal Test provides a means to verify the NEXT measurement consistency of the LANcat as recommended by the EIA/TIA TSB-67 Link Testing Standard.

  • Page 78: Repeatability Test

    LANcat User Manual Repeatability Test The Repeatability Test confirms that multiple NEXT measurements are essentially the same. The Repeatability Test provides a means to verify the NEXT measurement consistency of the LANcat as recommended by the EIA/TIA TSB-67 Link Testing Standard. In the Repeatability Test, NEXT tests are performed twice on the same pair combination and the measured results compared.

  • Page 79: Impedance

    Chapter 5 Cable Test Descriptions Impedance Impedance is a measure of resistance to AC current flow by a cable. Impedance is an important attribute of a cable. High speed data transmission systems will not perform well unless cabling having the correct impedance is installed. Each cable standard calls for a specific impedance.

  • Page 80: Resistance (Lancat Twoway)

    LANcat User Manual Resistance (LANcat TwoWay only) The Resistance test measures and displays in ohms the DC resistance of each wire in the cable. Resistance is a measure of opposition to DC current flow in a cable. DC resistance can be used to identify poor wire connections, which typically have large resistance.
  • Page 81 Chapter 5 Cable Test Descriptions VIEWING RESISTANCE RESULTS The resistance for each wire in a wire pair is displayed. Resistance Results Resistance of wire between main and remote units, pins 1 & 2 1. Press SPEC (F3) to view the test standard specification value 2.

  • Page 82: Cable Toner

    LANcat User Manual Cable Toner The Cable Toner function injects an audible frequency signal on a cable to enable cable identification by a cable toner probe. A modulated ~1KHz signal is injected on pin one (1). Any commercially available Toner Probe can be used to identify the corresponding cable end in a remote wiring location.

  • Page 83: Printing, Uploading, Viewing Test Results

    Chapter 6 Printing/Uploading Test Results 6. PRINTING, UPLOADING AND VIEWING TEST RESULTS The Print function allows you to send test results to a serial printer, upload the test results to a PC or view stored test reports before printing or uploading. The Print function •...
  • Page 84 LANcat User Manual ADAPTER/CONNECTOR INFORMATION The PC Interface Cable supplied with the LANcat may not be the correct connector to properly connect to all serial printers. Use only straight through adapters to connect the PC Interface Cable to a printer. Connectors with different pin assignments than those mentioned above may affect output operation (see Appendix C, Specifications for the Serial Port pin assignments).

  • Page 85: Printing/Uploading Test Results

    Chapter 6 Printing/Uploading Test Results Printing/Uploading Test Results PRINTING/UPLOADING A SINGLE TEST REPORT 1. Set dial to PRINT to display the Print menu. Print Menu (Test 002 Selected) 2. Press the arrow keys to highlight the test report you wish to print or upload.
  • Page 86 LANcat User Manual PRINTING/UPLOADING MULTIPLE REPORTS 1. Set dial to PRINT to display the Print menu. 2. Press the arrow keys to highlight a test report you wish to print or upload. 3. Press SELECT (F1) to place a check mark next to the report number.
  • Page 87 Chapter 6 Printing/Uploading Test Results PRINTING/UPLOADING ALL REPORTS 1. Set dial to PRINT to display the Print menu. 2. With <ALL REPORTS> highlighted, press SELECT (F1) or ENTER. 3. Press PRINT (F4) or ENTER. Print Menu (All Tests Selected) 3. Follow the procedure in “Changing Serial Port Settings” in this chapter.
  • Page 88 LANcat User Manual UPLOADING DETAILED NEXT/ATTENUATION RESULTS Detailed NEXT or Attenuation test results can only be output to a PC immediately following completion of the test. To upload detailed NEXT or Attenuation test results: 1. Complete the Autotest, individual NEXT or individual Attenuation test.
  • Page 89 Chapter 6 Printing/Uploading Test Results CHANGING SERIAL PORT SETTINGS • BAUD rate You can change the serial port • Flow control settings for these selections: • Output report format Print Screen The serial data format is fixed at 8-bit, no parity, 1 stop bit (8N1). 1.

  • Page 90: Deleting Test Reports

    LANcat User Manual Deleting Test Reports Reports may be deleted from memory by performing the following steps: 1. Set dial to PRINT to display the Print menu screen. 2. Press the arrow keys to highlight the test report you wish to delete.

  • Page 91: Viewing Saved Test Reports

    Chapter 6 Printing/Uploading Test Results Viewing Saved Test Reports To review a saved report: 1. Set dial to PRINT to display the Print menu screen. 2. Press the arrow keys to highlight the number of the test report you wish to view. 3.
  • Page 92 LANcat User Manual LANcat CABLE CERTIFICATION REPORT #3 Company Name Here Circuit ID: H7/B6-61 Date Tested: 06/24/1996 Cable Test Standard: CAT5 Basic Link Module Type: Modular Plug Location: ___________________________ Remote Module Type: TwoWay Remote Serial Number: 9510704 V2.41D1 Cable NVP: 72.0% TEST SUMMARY: PASS _______________________________________________________________________________...
  • Page 93 Chapter 6 Printing/Uploading Test Results LANcat NETWORK TRAFFIC REPORT Start Time: 15:29:14 Date: 08/08/1995 Operator: Cable Test Standard: 10Base-T Module Type: Modular Plug Location: ______________________ Serial Number: 0000000 Notes: *** Average Utilization --- Peak Utilization C = % Collisions Percent Network Utilization Time Packet HH:MM:SS +----+----+----+----+----+----+----+----+----+----+----+----+...
  • Page 94 LANcat User Manual Page 6-12 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 95: Testing Twisted Pair Cable

    Chapter 7 Testing Twisted Pairs 7. TESTING TWISTED PAIR CABLE This chapter contains information about the fundamentals of testing twisted pair cables. This chapter also discusses common wiring problems and reasons that cables fail. Tables of troubleshooting tips are provided throughout the chapter. The tables can be used as a quick reference when troubleshooting a cable segment.

  • Page 96: Twisted Pair Test Descriptions

    LANcat User Manual Although UTP is one of the most popular cable test standards to install, it is also highly susceptible to a variety of failures if the cable is not properly installed. The LANcat checks for these possible failures. The test or tests you choose to run depend on whether you are performing a complete check of cable characteristics compared to a standard (cable certification) or troubleshooting a specific cable problem.
  • Page 97 Chapter 7 Testing Twisted Pairs WIRE MAP Wire map is used to test the continuity of a cable and also to check for split pairs. Continuity is the electrical connection of a wire from one end of the cable to the other. Typically when testing twisted pair cable, it is desired to have all wires connected straight-through.
  • Page 98 LANcat User Manual Open (8) Reversed (1 & 2) Crossed (1,2 to 3,6) Shorted (1 & 2) Figure 7-3. Continuity Wiring Errors In addition to continuity, the TIA-568 also specifies which pins are associated with specific wire pairs in the cable. When pin-to-pin continuity is maintained, but the proper pairs are not, the wiring error is called a Split Pair.
  • Page 99 Chapter 7 Testing Twisted Pairs Figure 7-4 illustrates an example of a split pair where pins 1 and 2 are split with 3 and 6. Refer to the following section for an explanation of NEXT. 1,2 splits 3,6 Figure 7-4. Split Pair NOTE A split pair cannot be detected with a simple DC continuity check.
  • Page 100 LANcat User Manual The majority of all wiring problems can be found at the termination points. A chart of common wire map problems and suggested solutions is shown below. Test Results Possible Solutions Crossed pair Depending on what the cable is being used for, this may be okay.
  • Page 101 Chapter 7 Testing Twisted Pairs Test Results Possible Solutions SHORT on one Follow same procedure as for “ OPEN on or more of the one or more of the pairs .” pairs Remote Unit not Be sure that the main and remote units are connected connected to the same cable.
  • Page 102 LANcat User Manual Test Results Possible Solutions Another common pairing is 12, 34, 56, 78. If testing this type, you will get a split pair message between 3,6 and 4,5. If a split pair is not expected, make sure the cable is twisted pair.
  • Page 103 Chapter 7 Testing Twisted Pairs NEAR-END CROSSTALK (NEXT) When a signal is transmitted onto one of the pairs, an electromagnetic field is created around the wires that couples the transmitted signal into adjacent pairs. This coupled signal is referred to as Crosstalk. Crosstalk is similar to the problem that occurs in a telephone when you hear another conversation on your line.
  • Page 104 LANcat User Manual Signal generator Crosstalk Signal measurement Figure 7-7. NEXT Measurement The twisting of pairs of wires is essential to minimizing crosstalk effects from pair to pair. The amount of twisting is a key difference between high-performance Category 5 cable and lessor rated cable, such as Category 3.
  • Page 105 Chapter 7 Testing Twisted Pairs NEXT (dB) Freq. Figure 7-8. Typical Relationship of NEXT and Frequency Page 7-11 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 106 LANcat User Manual NEXT is measured in decibels (dB). A high dB value, which is typically referred to as low NEXT, is good (for example, 48 dB). This means there is a large difference between the transmitted signal and the resulting NEXT. A low dB value, which is typically referred to as high NEXT, is bad (for example, 20 dB).
  • Page 107 Chapter 7 Testing Twisted Pairs Common Solution Causes of Excessive NEXT Split pairs Because of different standards, there are different pair combinations (for example, USOC, EIA/TIA, etc.). Double check requirements and rewire if necessary. For troubleshooting, follow procedure for “ Split Pair ” in Wire Map section. Use of substandard It is common to make the mistake of using components...
  • Page 108 LANcat User Manual The following troubleshooting table describes some common NEXT problems and some solutions. Test Results Possible Solutions NEXT test fails Compare test results to actual expected values for one or more to confirm misconformance. pairs Start at tester end and check that all cable is minimum required grade.
  • Page 109 Chapter 7 Testing Twisted Pairs Test Results Possible Solutions NEXT test fails Check actual results to expected results. intermittently Values may be borderline. Simply re- terminating a connection could correct problem. Follow procedure for “ NEXT test fails for one or more pairs ”...
  • Page 110 LANcat User Manual POWER SUM NEXT Power Sum NEXT is a critical test for certifying the performance of installed twisted pair links. It is the sum of the pair-to-pair NEXT coupled from all adjacent pairs in a cable. Power Sum NEXT is an important measurement for emerging high speed local area networks such as 622 Mbps ATM and Gigabit Ethernet.
  • Page 111 Chapter 7 Testing Twisted Pairs Calculated Power Sum NEXT compared to pair-to-pair NEXT for a typical link is shown in Figure 7-10. Power Sum NEXT can be nearly 5 dB worse than the pair-to-pair NEXT. Consequently, the Power Sum NEXT test holds the cable up to a higher standard, providing additional assurance that the link will support future high speed networks.
  • Page 112 LANcat User Manual ATTENUATION The Attenuation test measures the reduction in the strength or amplitude of a signal as it travels over the length of a twisted pair cable. The amount of this loss is expressed in decibels (dB) (refer to Figure 7-11).
  • Page 113 Chapter 7 Testing Twisted Pairs The following table lists some common causes of Attenuation and possible solutions. Common Solutions Causes of Attenuation Incorrect grade Be sure to use the correct grade cable for the cable for specification being tested. Lower grade application cable can cause greater attenuation.
  • Page 114 LANcat User Manual Common Solutions Causes of Attenuation Sub-standard It is common to make the mistake of using components couplers or lower grade hardware and/or cable than the minimum expected. The highest category your installation will comply to is that of the lowest category component you have in your segment.
  • Page 115 Chapter 7 Testing Twisted Pairs LENGTH The LANcat uses a method called Time Domain Reflectometry (TDR) to measure cable length. With TDR, a signal is transmitted at one end of a cable and, at the same time, a timer is started. The electrical signal travels down the cable until it reaches a change in impedance (for example, an open, a short, a fault in the cable or a cable mismatch) and part or all of the signal is reflected back.
  • Page 116 LANcat User Manual When the reflected signal reaches the tester where the signal was generated, the timer stops. By knowing the speed of the signal traveling down the cable, you can determine the length of the cable. How do you know how fast the signal travels down the cable? All cables have an inherent characteristic called Nominal Velocity of Propagation (NVP .
  • Page 117 Chapter 7 Testing Twisted Pairs To obtain the most accurate Length measurement possible, you must calibrate your test equipment to the cable you are testing. Follow the procedure described in Chapter 9, Calibration. NOTE It is normal for some variation in the measured length of wire pairs within the same cable.
  • Page 118 The anomaly threshold was chosen by Datacom Textron to aid you in cable troubleshooting. If you do not desire to view the anomalies, increase the threshold settings (refer to Chapter 8, Set Up).
  • Page 119 Chapter 7 Testing Twisted Pairs Test Results Possible Solutions LANcat will not Make sure cable is connected to LANcat. display a length Disconnect the Remote Unit or any other measurement equipment from the far end of the cable. If cable is less than five feet, the LANcat displays “Cable <...
  • Page 120 LANcat User Manual Test Results Possible Solutions Length is double Check the termination of the cable. what it should be If cable is not connected to the Remote Unit, the termination hardware may automatically loopback pins (for example, IBM Type A connectors).
  • Page 121 Chapter 7 Testing Twisted Pairs DELAY/DELAY SKEW Figure 7-14. Delay/Delay Skew Delay is a measure of the time electrical signals take to propagate from one end of the cable to the other end. The difference in propagation delays from one cable pair to another is called Delay Skew.
  • Page 122 LANcat User Manual Test Results Possible Solutions Too much Delay NVP may be incorrect. Calibrate the NVP and or Delay Skew re-run the test. Use a higher grade cable, which typically have lower propagation delays. If your cable is identified as 2+2 or 3+1 cable, it may be resulting in excessive Delay Skew.
  • Page 123 Chapter 7 Testing Twisted Pairs NOISE Noise is defined as unwanted signals on the segment. Due to the construction of UTP cable, it acts as an antenna to electromagnetic and radio frequency signals (refer to Figure 7-15). Examples of noise producers are fluorescent lights, electric motors, power lines, signals caused by voice lines sharing the same pathway as a data line, elevators, and industrial type equipment.
  • Page 124 LANcat User Manual The following table discusses some of the common sources of noise and their solutions. Common Solution Causes of Noise Electric motors Re-route the cable and/or follow your installation specification. If in an extremely noisy environment, it may be necessary to choose an alternate media instead of UTP (for example, coax, fiber, etc.).
  • Page 125 Chapter 7 Testing Twisted Pairs IMPEDANCE Impedance is an inherent characteristic of the cable, and is a measure of resistance to AC current flow (high frequency signals) by a long cable. High speed data transmission systems will not perform well unless cabling having the correct impedance is installed.
  • Page 126 LANcat User Manual RESISTANCE Resistance is defined as an electrical element that impedes the flow of DC current. It is measured in ohms. As a test, it is used to confirm there are no poor connections that add to the resistance of the segment.

  • Page 127: Testing Tips

    Chapter 7 Testing Twisted Pairs Testing Tips SELECTING PERFORMANCE MODULE (PM) AND CABLE SPECIFICATION 1. Select and install the appropriate Performance Module PM for the type of cable under test. 2. Select the correct cable test standard you wish to test to. If you select one of the EIA/TIA Category 3, 4, or 5 Basic Link test standards, the accuracy (Level I or Level II) will be determined by the Performance Module you use.
  • Page 128 LANcat User Manual 1. When connecting to unidentified twisted pair cable, ensure there are no voltages on the segment. Use a tone tester or voltmeter to determine that there are no voltages on the wire. 2. Connect the remote unit to one end of the cable. Connect the main unit to the other end.
  • Page 129 Then, if you are unable to resolve your problem, contact Datacom Textron’s Technical Support department at the numbers listed in Chapter 11, Technical Support and Service. 4. Finally, if you would like additional information on...
  • Page 130 LANcat User Manual Page 7-36 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 131: Setup

    Chapter 8 SetUp 8. SETUP The following table provides information about the functions available under the SETUP dial position. The table details the softkey operations, the selections available for each setup parameter and factory-set default values. Table 1. SETUP Functions Function Softkey Available...
  • Page 132 LANcat User Manual Function Softkey Available Operations Selections (Default is bold) mm/dd/yy Date Format, Month, Day, Year dd/mm/yy yy/mm/dd Time Hour, Minute, hh:mm:ss (24-hour mode Zero Seconds only) On, Off Audible Tone On, Off On, Off TRAF/NOISE On, Off Tones Company MODIFY name...

  • Page 133: Changing Setup Parameters

    Chapter 8 SetUp Changing SetUp Parameters NOTE Changes to the setup parameters are automatically stored in non-volatile memory. SetUp settings are not lost when replacing instrument batteries. LENGTH MEASUREMENT UNITS The Units parameter selects feet or meters for cable length measurements.
  • Page 134 LANcat User Manual FAULT THRESHOLD Fault Threshold is the minimum reflection level detected as an anomaly in the Length test. Any reflection less than this threshold will be ignored by the LANcat. The default Fault Threshold value is 7%, which corresponds to the worst-case allowable impedance discontinuity specified in IEEE 802.3 for coaxial cable.
  • Page 135 Chapter 8 SetUp NOISE THRESHOLD Noise Threshold is the minimum detection level for noise impulse spikes measured in the Noise test. The default Noise Threshold value is 260 mV, which corresponds to the impulse noise specification for 10BASE-T. • Switch dial to SETUP. •...
  • Page 136 LANcat User Manual POWER DOWN TIME Power Down sets the time interval for the LANcat automatic powers down. The LANcat will power down after the time interval during which there has either been no key press or no communication with the other end when set to Remote mode. To disable Power Down, set the value to Disabled.
  • Page 137 Chapter 8 SetUp BACKLIGHT TIME The Backlight parameter sets the “on” time for the display backlight. The backlight should be used sparingly as it reduces the number of operation hours on a set of batteries or a battery charge. • Set dial to SETUP. •...
  • Page 138 LANcat User Manual BAUD RATE The Baud Rate matches the LANcat serial output baud rate with that of the printer or PC. The default setting is 9600 baud, which is the most common serial printer input baud rate. • Set dial to SETUP. •...
  • Page 139 Chapter 8 SetUp DATE The LANcat records the date that a test report is saved and includes this date on output test reports. There are three available date formats: mm/dd/yy (default), dd/mm/yy, or yy/mm/dd. • Set dial to SETUP. • Highlight Date using the arrow keys.
  • Page 140 LANcat User Manual AUDIBLE TONES Audible Tones parameter enables and disables audible tones that are created at the end of tests, and that are generated during Traffic and Noise tests. A different audible tone is created for Pass and Fail test results. •...
  • Page 141 Chapter 8 SetUp COMPANY NAME Test reports can be customized to include a company name up to 20 characters long. • Set dial to SETUP. • Highlight CO. using the arrow keys. • Press MODIFY (F4) or ENTER to modify the name. •...
  • Page 142 LANcat User Manual CIRCUIT NAMES The Circuit Names setting determines the default name used for the circuit identification when saving Autotest results. • Set dial to SETUP. • Highlight Circuit Names using the arrow keys. • Press NONE (F1), BLANK (F2), NEXT (F3) or SAME (F4).
  • Page 143 Chapter 8 SetUp AUTO TONER Setting Auto Toner ON activates the Cable Toner feature whenever the unit is set to Quick Check or Autotest and a remote is not attached. (See Chapter 5). • Set dial to SETUP . • Press ON/OFF (F4) to enable or disable automatic tone generation.
  • Page 144 LANcat User Manual RESET TO DEFAULTS The Reset to Defaults parameter allows you to return the LANcat internal settings to their factory default settings. • Set dial to SETUP. • Highlight Reset to Defaults using the arrow keys. • Press SETUP (F2) to reset all setup parameters to their default values (refer to Table 8-1).

  • Page 145: Calibration And Upgrading

    Chapter 9 Calibration 9. CALIBRATION AND UPGRADING The LANcat performs several types of calibrations: NVP calibration, Remote Unit calibration, Performance Module calibration, Impedance calibration, Resistance calibration, and main unit calibration. NVP Calibration A default Nominal Velocity of Propagation (NVP) value is preselected in the LANcat depending on the cable test standard selected.
  • Page 146 LANcat User Manual 4. Connect a known length of sample cable to the LANcat. The cable must be at least 50 feet (15 meters) long to get an accurate measurement (longer lengths improve accuracy). Leave the far end of the cable open. 5.
  • Page 147 Chapter 9 Calibration USING MANUFACTURER’S CABLE SPECIFICATIONS If you do not have a known length of cable available, but can identify the cable manufacturer and part number, you may be able to determine the rated cable NVP and load that NVP value into the LANcat.
  • Page 148 LANcat User Manual Why do I need to set cable NVP? order make accurate cable length measurements, the correct cable Nominal Velocity of Propagation (NVP) value must be set in the LANcat. The NVP is a measure of how fast an electrical pulse travels down a cable compared to the speed of light.

  • Page 149: Remote Unit Calibration

    Chapter 9 Calibration Remote Unit Calibration Remote Unit calibration should be performed on a periodic basis in order to maintain the accuracy of attenuation measurements. Remote calibration is most sensitive to temperature changes. Allow both main and Remote units to stabilize to their operating environment before performing the calibration procedure.
  • Page 150 LANcat User Manual TWO-WAY SYSTEM CALIBRATION To calibrate the remote unit on a TwoWay System: 1. Connect the main unit to the CAT 3 calibration coupler, using the modular plug Performance Module. (If you are using the modular jack Performance Module, use the four- foot CAT 5 patch cord).

  • Page 151: Performance Module Calibration

    Chapter 9 Calibration Performance Module Calibration Each Performance Module used with the LANcat needs to be calibrated in order to deliver maximum measurement accuracy. LANcat automatically recognizes which type of Performance Module is installed, and can store a set of calibration parameters for each Performance Module type in non-volatile memory.
  • Page 152 If the problem continues, contact Datacom Textron Technical Support. Page 9-8 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 153: Impedance Calibration

    Chapter 9 Calibration Impedance Calibration Impedance calibration should be performed on a periodic basis in order to maintain maximum accuracy. Impedance calibration is most sensitive to temperature changes. Allow the main unit to stabilize to the operating environment before performing the calibration procedure.

  • Page 154: Resistance Calibration

    LANcat User Manual Resistance Calibration Resistance calibration should be performed on a periodic basis in order to maintain maximum accuracy. Resistance calibration is most sensitive to temperature changes. Allow the main unit to stabilize to the operating environment before performing the calibration procedure.

  • Page 155: Main Unit Calibration

    (firmware) updates. LANcat software (firmware) is available over the Internet at www.datacom.textron.com . Those without a means to access the Internet may contact Datacom Textron's Technical Support Center for software (firmware) upgrades. Firmware updates are available as a self-extracting executable file.
  • Page 156 LANcat User Manual Page 9-12 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 157: Ethernet Traffic Analysis

    Chapter 10 Ethernet Traffic Analysis ETHERNET TRAFFIC ANALYSIS Traffic provides a report of Ethernet network utilization and activity. The LANcat monitors live traffic on 10BASE-T Ethernet networks and continuously displays the percentage of network utilization, peak traffic, and collisions on the screen along with a bar graph display of network activity.

  • Page 158: Running Traffic Test

    LANcat User Manual Running Traffic Test 1. Connect the LANcat directly to the network either at the 10BASE-T hub or at the end of a cable segment. 2. Switch dial to TRAFFIC. 3. Press arrow keys to change the cable test standard and SAVE (F4) or ENTER to select a cable test standard.

  • Page 159: Viewing Traffic Results

    Chapter 10 Ethernet Traffic Analysis Viewing Traffic Results The screen displays a continuous reading of traffic conditions on the network. FEATURE DESCRIPTION One Sec • Shows the average network utilization Traffic over the last second. Average traffic utilization over 30-40% indicates a heavily loaded network.
  • Page 160 LANcat User Manual Traffic test can detect the following three errors: ERROR DESCRIPTION No Link - Indicates that there were no Link pulses Pulse received from the 10BASE-T hub, possibly as a result of a faulty hub or cable link connected to the hub. Wrong - Indicates possible miswire of cable link polarity...
  • Page 161 Chapter 10 Ethernet Traffic Analysis Traffic Test Results Screen (Wrong Polarity) Traffic Test Results Screen (No Link Pulse) Traffic Test Results Screen (Jabber Detected) NOTE The “Error Since” message indicates the time when the present traffic error began. The “Last Error” message indicates the time when the last error occurred.
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  • Page 163: Technical Support And Service

    LANcat. If you have questions or comments about your cable tester, contact your sales representative, distributor, or call Datacom Textron and ask for technical support. Hours are Monday through Friday, 8 AM to 4:30 PM Pacific Time. The phone numbers and Internet address are:...

  • Page 164: Lancat Self Test

    If the Selftest fails, make a note of which test fails and contact a Datacom Textron Technical Support Representative. If the LANcat passes the Selftest, but still does not perform properly, perform the calibration procedure (refer to Chapter 9, Calibration) then perform the System Integrity Pretest described in Chapter 2.

  • Page 165: Appendix A. Test Standards

    Appendix A Test Standards APPENDIX A. TEST STANDARDS The LANcat tests cabling to the performance required by the cable test standard chosen. The test limits for each specification standard are listed in the following tables. LANcat cable test standards may be modified to add/remove cable tests (e.g.

  • Page 166: Channel Testing

    LANcat User Manual Channel Testing The Channel wiring system is encountered when the need arises to diagnose system problems in existing networks. TWO-WAY SYSTEM CHANNEL TESTING The following figure illustrates a typical test set up using a TwoWay System to test a Channel: Figure A-1.
  • Page 167 Appendix A Test Standards ONE-WAY SYSTEM CHANNEL TESTING The following figure illustrates a typical test set up using a OneWay System to test a Channel: Figure A-2. Channel Test Configuration, One Way System Page A-3 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 168: Basic Link Testing

    LANcat User Manual Basic Link Testing The Basic Link wiring system is encountered when a new installation is to be certified for conformance to the cabling system performance requirements of TSB-67. The Modular Plug Performance Module is used in this arrangement. TWO-WAY SYSTEM BASIC LINK TESTING The following figure illustrates a typical test set up using a TwoWay System to test a Basic Link:...
  • Page 169 Appendix A Test Standards ONE-WAY SYSTEM BASIC LINK TESTING The following figure illustrates a typical test set up using a OneWay System to test a Basic Link Figure A-4. Basic Link Test Configuration, One Way System Page A-5 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 170: Eia/Tia Tsb-67 - Test Limits

    LANcat User Manual EIA/TIA TSB-67 - Test Limits When testing to Category 3, Category 4, or Category 5 UTP limits, the cable category as well as the Cable Test Configuration is chosen from the Cable Test Standards menu. To test the Channel, including user patch and equipment cords, use the Modular Jack Performance Module.
  • Page 171 Appendix A Test Standards Table 2. NEXT Frequency Cat 3 (dB) Cat 4 (dB) Cat 5 (dB) Channel Link Channel Link Channel Link 39.1 40.1 53.3 54.7 >60.0 >60.0 29.3 30.7 43.3 45.1 50.6 51.8 24.3 25.9 38.2 40.2 45.6 47.1 10.0 22.7...

  • Page 172: Iso/Iec - Test Limits

    LANcat User Manual ISO/IEC - Test Limits Cabling System performance criteria have been established Internationally by the ISO/IEC Standards body in the ISO/IEC 11801 Standard. The 11801 Standard establishes two applications referred to as Class C and Class D. Cabling Links supporting Class C applications are specified up to 16 MHz.
  • Page 173 Appendix A Test Standards Table 5. ISO 11801 Class C, Class D ACR Test Limits Minimum ACR Frequency (dB) (MHz) Class C Class D 35.3 22.4 10.0 12.3 16.0 20.0 31.25 62.5 100.0 Table 6. ISO 11801 Class C, Class D Pass/Fail Limits ≤...

  • Page 174: Enhanced Cable Standards - Test Limits

    LANcat User Manual Enhanced Cable Standards – Test Limits LANcat includes several enhanced Cable Test Standards. All enhanced cable standards are designated as “Plus” cable standards (e.g. Cat5 Plus BasicLnk. ISO Class D Plus). “Plus” cable test standards include Power Sum NEXT and Delay/Delay Skew tests along with the standard suite of tests (see Chapter 5 - Power Sum NEXT, Delay/Delay Skew).
  • Page 175 Appendix A Test Standards for the needed frequencies rather than attempting to re- certify wiring for performance that is higher than needed for the network to operate properly. Table 7. 10BASE-T Pass/Fail Limits ≤ 100 meters Length 100 + 25 Ω Characteristic Impedance NEXT...
  • Page 176 LANcat User Manual Table 9. 16 Mbps Token Ring UTP Pass/Fail Limits ≤ 100 meters Length Characteristic 100 + 25Ω Impedance NEXT > 41 dB @ 5 MHz >38 dB @ 8 MHz >36 dB @ 10 MHz >33 dB @ 16 MHz >32 dB @ 20 MHz Attenuation <...
  • Page 177 Appendix A Test Standards Table 11. 100 Base TX Pass/Fail Limits ≤ 100 meters Length 100 + 25 Ω Characteristic Impedance NEXT Between 1 and 100 MHz, NEXT > Category 5 Channel Limits Attenuation Between 1 and 100 MHz, Attenuation < Category 5 Channel Limits Split Pair NEXT <...
  • Page 178 LANcat User Manual Table 13. TP PMD and TP PMD-REV Pass/Fail Limits ≤ 100 meters Length 100 + 25 Ω Characteristic Impedance NEXT Between 1 and 100 MHz, NEXT > Category 5 Channel Limits Attenuation Between 1 and 100 MHz, Attenuation <...
  • Page 179 Appendix A Test Standards Table 15. ATM 155 Mbps Pass/Fail Limits ≤ 100 meters Length 100 Ω Characteristic Impedance NEXT Between 1 and 100 Mhz, NEXT > Category 5 Limits Attenuation Between 1 and 100 Mhz, Attenuation < Category 5 Limits Split Pair 20 dB <...

  • Page 180: Defining Custom Standards

    LANcat User Manual Defining Custom Standards Existing cable test standards can be modified to create additional custom standards. Custom Standards that have been defined by the user are then available as a Cable Standard and are identified by an asterisk (*). The tests performed and the PASS/FAIL limits are set by copying one of the existing cable test standards.
  • Page 181 Appendix A Test Standards Press PAIRS (F2) to select which wire pairs will be included in the tests (twisted pair cables). Press SELECT/DESELECT (F3) to choose wire pairs and shield. Press SAVE (F4) to save the custom standard. To cancel, press CANCEL (F1). The name of the test standard that was copied, preceded by an asterisk, will be displayed.
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  • Page 183: Appendix B. Common Cable Nvp Values

    Appendix B Common Cable NVP Values APPENDIX B. COMMON CABLE NVP VALUES DEFAULT NVP VALUES The LANcat uses the following default NVP values: Cable Test Standards Default NVP Category 5 Basic Link Category 5 Channel Category 4 Basic Link Category 4 Channel Category 3 Basic Link Category 3 Channel Token Ring STP...
  • Page 184 LANcat User Manual The following table lists the characteristic impedance and nominal NVP for several manufacturers’ cable types. Manufacturer Part No. Category Impedance ( • ) NVP (%) Alpha 9304C Alpha 9304F AT&T 1010A AT&T 2010A Belden 1154A Belden 1155A Belden 1229A Belden...
  • Page 185 Appendix B Common Cable NVP Values Manufacturer Part No. Category Impedance ( • ) NVP (%) AT&T 1061 AT&T 2061 Belden 1583A/B Belden 1585A/B Berk-Tek HYPER-Grade PL Berk-Tek HYPER-Grade NP Berk-Tek LANmark PL Berk-Tek LANmark NP Page B- 3 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 186 LANcat User Manual Page B- 4 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 187 Appendix C Specifications APPENDIX C. SPECIFICATIONS GENERAL LANcat – Main Unit: Display: 128 x 64 pixel backlit graphic LCD Operating Controls: 10 position rotary function selector Elastomeric keypad Audible Alarm: Operator Enabled/Disabled Size: 9.6 in X 3.9 in X 2.5 in (24.8 cm X 9.9 cm X 6.35 cm) Weight: 1 lb 15 oz (0.88 kg) OneWay Remote Unit: Display: Three LED indicators...
  • Page 188 LANcat User Manual POWER LANcat – Main Unit: Battery: Eight AA alkaline or NiMH rechargeable battery pack. Battery Life: 8-10 hours continuous use or >800 Autotests (typical) Low Battery Indicator: Audible alarm plus LCD display Automatic Power down: 2 to 30 minutes (selectable) or disabled AC/Mains adapter (Battery Eliminator): 12-15 Vdc, 300 mA Lithium Coin Cell (Autotest results storage) life: 2 years OneWay Remote Unit...
  • Page 189 Appendix C Specifications SERIAL PORT Connector: DB-9P (pins) SERIAL PORT pin assignments: 1 No connection SERIAL PORT 2 Receive data (input) 3 Transmit data (output) 4 Data terminal ready (output) 5 Signal ground 6 No connection 7 No connection 8 Clear to send (input) 9 No connection Baud rate: 1200 to 38,400 baud.
  • Page 190 LANcat User Manual WIRE MAPPING (TWISTED PAIR WIRING ONLY) Displays Following Errors: Miswired Pairs, Shorts, Opens, Shorted Pairs, Crossed Pairs and Split Pairs. Includes test of shield (if present) NEAR-END CROSSTALK (NEXT) AND ATTENUATION • Tests NEXT for all six pair combinations •...
  • Page 191 Appendix C Specifications ATTENUATION-TO-CROSSTALK RATIO ACR is calculated for each pair over the full frequency range per test specification selected IMPULSE NOISE Counts impulse noise hits above user defined threshold Threshold: User defined, 100 mV to 500 mV peak (260 mV default) CABLE RESISTANCE (TWISTED PAIR) Range: 0 Ω...
  • Page 192 LANcat User Manual Page C-6 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 193 The Modular Plug Performance Module shipped with your LANcat tester features a user-replaceable test cord. This Performance Module is a critical part of a LANcat Series Cable Tester. The LANcat instrument uses frequencies up to 100 MHz where 1 inch of wire is a significant part of a wavelength.
  • Page 194 LANcat User Manual Equipment Cable Required Preferred: Pre-tested replacement cable available from Datacom Textron (see Table 1). These cables have been tested for Near End Cross Talk and other critical parameters and have had wire ends prepared for direct installation.
  • Page 195 Appendix D Cable Replacement Procedure THREADED SPACER (2) THREADED SPACER (2) THREADED SPACER (2) THREADED SPACER (2) THREADED SPACER (2) THREADED SPACER (2) CASE CASE CASE CASE CASE CASE TIE-WRAP TIE-WRAP TIE-WRAP TIE-WRAP TIE-WRAP TIE-WRAP PCB MOUNT SCREW (2) PCB MOUNT SCREW (2) PCB MOUNT SCREW (2) PCB MOUNT SCREW (2) PCB MOUNT SCREW (2)
  • Page 196 LANcat User Manual 5. Remove individual wires by unscrewing their terminals with the screwdriver. For easy re-assembly, fully open the terminal barrels, using (6) full turns. 6. Note the location of the tie wrap on the old cable and then cut away the tie wrap without cutting the grommet.
  • Page 197 Appendix D Cable Replacement Procedure 1. Slide plastic case and then the grommet onto new cable. 2. Slit the jacket lengthwise 1 3/8 in (35mm). With ScTP, cut the foil shield back to the jacket, leaving the drain wire intact. Pull the jacket away and then cut it off close to the bundle.
  • Page 198 LANcat User Manual Reassembly Figure D-3. UTP Cable Assembly 1. Insert each wire into its terminal and tighten screw until snug (see Figure D-3). If you’re using ScTP, connect the drain wire to the center screw terminal of the center terminal strip. 2.
  • Page 199 Appendix D Cable Replacement Procedure 4. Slide the grommet until 1/32 inch (0.8mm) or less of cable jacket is exposed (see Figure C-1). Rotate the grommet so that its flats are parallel with the circuit board when the fanned wires are flat to the circuit board. Install new tie wrap centered on grommet sleeve as shown in Figure D-3.
  • Page 200 568B cable as a 568A or visa versa. Swap the Orange and Green pairs. See Table 1.) Recalibration 1. CALIBRATE PERFORMANCE MODULE Follow the procedures in Chapter 9 of the LANcat Series User Manual for Performance Module Calibration. NOTE In addition to calibrating, this step checks the NEXT to ensure that your new cable assembly is similar in quality to Datacom Textron factory specifications.
  • Page 201 Appendix D Cable Replacement Procedure 2. CALIBRATE REMOTE Follow the Remote Unit Calibration procedure, also in Chapter 9, for either a OneWay System or TwoWay System, depending on your LANcat configuration. 3. SYSTEM CHECK Check your LANcat performance as follows: Turn dial to EXTENDED FUNCTIONS: Run Self Test.
  • Page 202 White- White- Orange Drain wire BLue White- White- BRown T568A Green Orange BLue BRown Datacom Textron Part Number 54649 Datacom Textron Part Number 54650 Page D- 10 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 203 Appendix E Glossary APPENDIX E. GLOSSARY AC - Alternating Current, a voltage or current of alternating polarity. Access Unit - A unit that allows multiple device attachment at a central location. Address - Uniquely assigned identification code to each device or workstation connected to a network.
  • Page 204 LANcat User Manual Backbone - A central local area network used to interconnect two or more other local area networks. Balun - A cable impedance matching RF transformer. Bandwidth - The difference between the highest and lowest frequency available on a channel to effectively transmit signals. Barrel Connector - Connector that joins two sections of a coax cable.
  • Page 205 Appendix E Glossary Broadband - A wide bandwidth signaling method that allows a cable to simultaneously carry several different kinds of transmissions such as voice, video, and data on one cable. Bus - A configuration in which nodes on a network are interconnected and communicate.
  • Page 206 LANcat User Manual Concentrator - LAN equipment that allows multiple network devices to be connected to the network cabling system through a central point. Also called a hub. Connecting Block - Interconnecting point for several LAN segments. Crossed Pair - Twisted pair wiring error in which a wire pair on one connector of the cable is wired to a different pair on the other end of the cable.
  • Page 207 Appendix E Glossary transmission medium. Sometimes called Attachment Unit Interface (AUI) cable. EIA - Electronic Industry Association. EMI - Electromagnetic Interference. Leakage of electro-magnetic energy outside of a transmission medium. Ethernet - A high speed local area network using Carrier Sense Multiple Access with Collision Detection (CSMA/CD) media access method.
  • Page 208 LANcat User Manual Gateway - A device that interconnects two or more networks that may use different protocols and media. Hertz (Hz) - Unit of measure for frequency in cycles per second (cps). Horizontal Cable - The part of a building cabling that extends from and includes the telecommunications outlet in the work area to the telecommunications (IDF) closet on the same floor.
  • Page 209 Appendix E Glossary Internetworking - Communication among devices across multiple networks. ISO - International Organization for Standardization. Jabber - A network fault condition where one station is continuously transmitting or transmits illegal packets of length greater than 20 msec. Jack - EIA standard modular connector for connecting twisted pair cables at a wall plate or patch panel.
  • Page 210 LANcat User Manual MAC - Medium Access Control, the method of determining how stations access the medium at any time. MAC Address - A unique identification number assigned to each station connected to a network. Sometimes called Station Address. Main Cross Connects - Provides connection between external telecommunications lines, interbuilding backbone cable, common communications equipment (PBX), and internal backbone cable.
  • Page 211 Appendix E Glossary Near End Crosstalk (NEXT) - Noise coupled between two twisted pairs measured at the same end of the cable as the disturbing signal source. Network - A collection of nodes interconnected by a medium. Network Interface Card (NIC) - The circuit card that interfaces a station to the network.
  • Page 212 LANcat User Manual Packet - A group of bits in a defined format, containing data and control information used for transmission from one node to another. Pair - Two wires in a multi-wired cable that are used as a single transmission path.
  • Page 213 Appendix E Glossary Receiver - The portion of a station or node that receives the data communication. Repeater - A device that regenerates the data signal, used to extend the network length. Resistance - Electrical element that impedes the flow of current, measured in Ohms.
  • Page 214 LANcat User Manual metal foil, and all wire pairs surrounded by a metal shield plus an outer protective jacket. Short - A near zero resistance connection between two wires of a cable. Signal to Crosstalk (SCR) - The logarithmic ratio of the received signal to any signal that is coupled into the pair.
  • Page 215 Appendix E Glossary TDR - Time Domain Reflectometry, a technique for measuring cable lengths by timing the duration between an incident pulse and the reflected pulse from an impedance discontinuity on a cable. Telecommunications closet - A room used to interconnect horizontal cable links to communication distribution equipment.
  • Page 216 LANcat User Manual UL - Underwriter’s Laboratories. UTP - Unshielded Twisted Pair cable. Cable constructed of four twisted wire pairs surrounded by an outer protective jacket. Voice Grade Cable - A lower quality or category of cable used to carry telephone communication. Voltage - The potential difference between two points.
  • Page 217 Index INDEX changing, 1-10 information, 1-9 low battery message, 1-9 specification, 2 Baud Rate, 6-7 changing setup parameters, 8-8 Running, 5-26 Viewing results, 5-27 Anomaly impedance, 7-23 Arrow Keys, 1-11 Attenuation Cable causes of, 7-19 connecting the test segment, 7-34 defined, 5-22 length calculated, 7-22 definition of, 7-18...
  • Page 218 LANcat User Manual changing setup parameters, 8-9 setting up, 2-1 Decibels (dB) specifications, 1 NEXT, 7-12 test results, 7-35 Delay/Delay Skew, 5-20, 7-27 upgrading, 9-11 Display Conventions, 1-11 Length changing setup parameters, 8-3 defined, 5-16 definition of, 7-21 running, 5-17 solutions to test failures, 7-24 EIA/TIA TSB-67 Test Limits, 6, 8 viewing results, 5-17...
  • Page 219 Index changing setup parameters, 8-5 Nominal Velocity of Propagation (NVP), 2-4, 7-22 Quick Check definition of, 4-1 calibrating using a known length of running, 4-2 cable, 9-1 viewing results, 4-4 calibrating using manufacturer's specifications, 9-3 calibration, 9-1 DEFAULT VALUES, 1 why set?, 2-4 Why set?, 9-4 Remote Unit...
  • Page 220 LANcat User Manual viewing results, 10-3 Traffic/Noise Tones Changing setup parameters, 8-10 Technical Support, 11-1 Twisted Pair Test test descriptions, 7-2 interpreting results, 7-35 Twisted Pair Cable selecting the proper, 7-34 Types of, 7-1 Test accuracy TwoWay System determining, 7-33 cable standards, 2-9 Test Configurations calibration, 9-6...
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