Microtest OMNIScanner LT Specifikace

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CUSTOMER
SUPPORT
INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
AUGUST 2000
TS1000A-R5
TS1002A
TS1003A
OMNIScanner
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Remote
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Scanner
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prs
7
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abc
2
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5
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0
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850 nm
1300/1310 nm
RX
TX
OMNI
Fiber
850 nm
1300/1310 nm
RX
TX
OMNI
Fiber
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Strany 1 - OMNIScanner

CUSTOMERSUPPORTINFORMATIONOrder toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOXFREE technical support, 24 hours a day,

Strany 2

8OMNISCANNER11. Multi Media Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12411.1 Portable Data. . . . . . .

Strany 3 - FCC INFORMATION

98OMNISCANNERThe OMNIRemote icon on the right side indicates the wiring at theOMNIRemote end of the cable link.Correct connectivity:The measured lengt

Strany 4 - INSTRUCCIONES DE SEGURIDAD

99Wires are shorted:Wiremap finds shorts in cable.In this example, the wiremap indicates that wires 4-5 are shorted. Use thenumber on the left side of

Strany 5 - NOM STATEMENT

100OMNISCANNER6.3 TDNXTNEXT faults are diagnosed by using the TDNXT (Time Domain NEXT) function.OMNIScanner uses TDNXT to determine the amount of NEXT

Strany 6

101the NEXT at the connection point, which is typically located at the end of the testcable at 2 meters (7 ft). The measurement unit for the horizonta

Strany 7 - CONTENTS

102OMNISCANNER6.3.2 TDNXT EXAMPLESThe following examples show the diagnostics process that is performed to identifyfailures on typical links with 2 me

Strany 8 - OIMNISCANNER

103BAD CABLE, GOOD CONNECTION:The cursor in the NEXT graph is located at the worst NEXT at 6.2 MHz, which isoutside the limit line. (For display purpo

Strany 9

104OMNISCANNERThe following table summarizes the typical diagnosis process.NEXT TDNXT exceeds ConclusionS-Band limitsPASS N/A NEXT at link is goodF

Strany 10 - OMNISCANNER

105S-Bands provide a time domain limit to verify that the connections are withinthe desired category of performance. In a typical link, failures are a

Strany 11 - 1. Introduction

106OMNISCANNERThe example shows a Time Domain Return Loss that exceeds the S-Bands. Theworst Return Loss is displayed at 7.0 ft, the connection. The c

Strany 12 - 1.6 OMNIScanner’s Display

107Press to open the TDRL screen to further review and diagnose thegraph.The cursor is positioned at the worst peak, which is outside the S-Bands. Lo

Strany 13 - CHAPTER 1: Introduction

9CHAPTER 1: Introduction1. Introduction1.1 The Digital Solution for Fiber and CopperOMNIScanner is the most advanced hand-held certification and diagn

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108OMNISCANNERPress to open the TDRL screen to further review and diagnose thegraph.The Return Loss response from the connector located at 2 m is wel

Strany 15

109CHAPTER 7: Results7. Results7.1 Autotest ResultsTo view previously saved Autotests, press the (Results) function key. TheRESULTS screen displays P

Strany 16 - 1.9 OMNIRemote Keys

110OMNISCANNERThe previously highlighted PROJECT NAME will now appear in the title bartogether with a numeric test counter that shows the number of Au

Strany 17 - 1.10 When To Use OMNIRemote

1117.2 Viewing Autotest ResultsThe Project Name screen shows a Circuit ID and a PASS/FAIL icon for each savedAutotest. The following PASS/FAIL icons c

Strany 18

112OMNISCANNERNOTEThe list of Autotests varies depending on the kind of Autotest that wasperformed.(See Chapter 5, Measurements, for detailed informat

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113FORFIBEROPTICCABLING:The Autotest Results screen will be displayed. The name of the Autotest, the cablethat was used to run the test, and the overa

Strany 20

114OMNISCANNERViewing is accomplished as described above.When a MultiMedia Card is inserted, OMNIScanner2 will allow you to copyresults to the portabl

Strany 21

1158. Fiber Optic Reference8.1 Establishing the Reference Different methods can be used when making a reference measurement withOMNIFiber. The referen

Strany 22

116OMNISCANNERThe fiber cables included with your OMNIFiber kit are duplex launch cableswith ST-style connectors. One fiber has white connector boots

Strany 23 - 1.16 Product Versions

117CHAPTER 8: OMNIFiber ReferenceNOTEThis method is called “Method B” in TIA-526-14A and “Method A.1” inTIA-526-7.1. Connect one end of a black launch

Strany 24

10OMNISCANNERcompared against the selected LAN standard for instant PASS/FAIL analysis.OMNIFiber measures loss at 850 and 1300 nm over multimode fiber

Strany 25 - Networks

118OMNISCANNERNOTEThis method is called “Method A” in TIA-526-14A and “Method A.2” inTIA-526-7.1. Connect a launch cable to the fiber adapter that is

Strany 26

1191. Connect the first launch cable to the fiber adapter that is attached toOMNIScanner. The black fiber attaches to the TX (transmitter) port and th

Strany 27 - 2.4 Setting the Reference

120OMNISCANNER3. Set the Reference. 4. Disconnect the white connector from both the RX port and the connectoradapter. Do not disturb the black fiber a

Strany 28 - 2.5 Project Selection

1219. Uploading and Printing9.1 Scanlink ToolsScanlink Tools consist of three parts: the ScanLink program, the OMNIScannerConfiguration program, and t

Strany 29

122OMNISCANNER10. Updating Scanner Software10.1 Downloading Software from the WWWSoftware updates can be easily downloaded from the Black Box World-Wi

Strany 30

1236. To verify the software update, press and hold the Backlight key (located rightabove the ESC key). The software version number will be displayed.

Strany 31

124OMNISCANNER11. Multi Media CardThe MultiMediaCard is the world’s smallest solid state storage device. It weighs lessthan two grams and is the size

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12511.2 MultiMediaCard MaintenanceMult Media Flash memory cards can store data just like a PC stores data on thehard disk. Saved files are broken into

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126OMNISCANNER12. Universal Serial Bus PortUSB allows you to instantly connect OMNIScanner2 to your computer runningWindows®98 (2nd Edition) or Window

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1273. Turn OMNIScanner2 on.4. Insert the OMNIScanner Companion CD which contains the USB driversoftware.5. Follow the instructions on the screen to in

Strany 35

111.7 OMNIScanner’s KeypadON/OFFWhen turned on, OMNIScanner will display the project screen.BacklightPress the Backlight key to toggle the backlight b

Strany 36

128OMNISCANNERNext, Windows will detect the location of the file OMNIScanner2 USB. ClickNext > to install the driver file.Once windows has finished

Strany 37

129CHAPTER 12: Universal Serial Bus Port12.2 Uploading OMNIScanner2 Test Results to the PC1. To send test results from OMNIScanner2(s) to a PC, first

Strany 38

130OMNISCANNERScanlink will transfer all of the Autotest results from the scanner and display asummary of the tests in the main program window.10. Cli

Strany 39 - HANNEL WITH

131The new Configuration is now implemented, and OMNIScanner2 displays theProject screen. (Consult the OMNIScanner Configuration on-line help forfurth

Strany 40

132OMNISCANNERAppendix A: TechnicalSpecificationsSpecifications apply to both OMNIScanner2 and OMNIRemote unless otherwisenoted.A.1 Physical Character

Strany 41

133APPENDIX A: Technical Specifications• Status Indicator (GREEN) for OMNIRemote status, various blink rates• Fail Indicator (RED) for test results• C

Strany 42

134OMNISCANNERA.5 Measurement Port (Test Interface)• Ultra-low Crosstalk test interface that supports testing of all four pairs• 160-pin test interfac

Strany 43 - OMPLETION

135APPENDIX A: Technical SpecificationsA.9 Memory• Control: Flash Memory allows electronic upgrading of both OMNIScanner andOMNIRemote programs.• Test

Strany 44

136OMNISCANNERA.11 OMNIScanner Test Functions• Wire Map• NEXT (Near-End Crosstalk)• Return Loss• Attenuation• ELFEXT (Equal Level FEXT)• ACR (Attenuat

Strany 45 - 3.5 Project Selection

137Instrument Parameter @100 MHz @200 MHz @300 MHzResidual NEXT >105 dB >105 dB >100 dBNoise Floor >100 dB 100 dB >95 dBDetector Accura

Strany 46

12OMNISCANNERAutotestPress the Autotest key to run a custom or predefined Autotest.ESCPress the Escape key to cancel the current operation.Arrow keysP

Strany 47 - REPARING AN

138OMNISCANNER• Factory-calibrated to ensure measurement port match to reference 100 ohmimpedance.• Measurement accuracy: Significantly exceeds Level

Strany 48

139A.22 Length• Range: 0 to maximum distance, where max. distance = 457 m (1500 ft.) fortwisted pair cable• Accuracy: + K + Length resolution + NVP u

Strany 49 - UTOTEST USING

140OMNISCANNERA.28 High-Voltage Input ProtectionThe test interface withstands input hazard conditions that arise from normaltelephone interfaces (48 V

Strany 50 - 3.7 Running a Fiber Autotest

141APPENDIX B: BatteriesAppendix B: BatteriesB.1 BatteriesOMNIScanner and OMNIRemote are powered by rechargeable, recyclable batterypacks.Under variou

Strany 51

142OMNISCANNERB.2 Battery ChargingCharging of the battery is enabled in the OMNIScanner and OMNIRemotewhenever the AC adapter is plugged in and the un

Strany 52 - 3.8 Fiber Autotest Results

143Appendix C: OMNIFiberPASS/FAIL CriteriaFor the latest cable installation, international standards, and conformancetechniques:http://cabletesting.co

Strany 53

144OMNISCANNERAppendix D: Cable PinoutsDescribed below are the functions of the electronic signals transmitted througheach pin a connectorD.1 Serial

Strany 54 - 4. Setup

145D.3 Serial Cable DB25 Female to DB25 Male PinoutsDB25 Female DB25 Male2 — — — — — — — — 23 — — — — — — — — 34 — — — — — — — — 205 — — — — — — — — 5

Strany 55 - CHAPTER 4: Setup

146OMNISCANNERIndex100BASE-F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59AAcquiring Reference Data . . . . . . . .

Strany 56

147IndexDdelay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57, 80Detail . . . . . . . . . . . . . . . . .

Strany 57 - 4.3 Autotests

13CHAPTER 1: IntroductionFunction KeysThe functions of the 4 keys located below the display vary depending on thecurrent display. The assigned functio

Strany 58

148OMNISCANNERLength results screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Length/Delay . . . . . . . . . . . . . . . . . . . .

Strany 59

149IndexPROJECT NAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110, 113project screen . . . . . . . . . . . . . . . . . . . .

Strany 60

150OMNISCANNERsplit pair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78, 99TTDNXT . . . . . . . . . . . . . . .

Strany 61

1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746© Copyright 2000. Black Box Corporation. All rights reserved.

Strany 62 - 4.4 Cables

14OMNISCANNER1.8 OMNIRemote’s LED IndicatorsLED Color DescriptionPASS Green Overall Autotest Result isPASS.Status Green OMNIRemote is ready for (flash

Strany 63

151.10 When To Use OMNIRemoteMost measurements require the use of OMNIRemote at the far end of the cable.For other measurements, OMNIRemote can be con

Strany 64

16OMNISCANNEROMNIScanner2 displays test results for both ends of the link. Press orto toggle the display between Scanner and Remote test results.NOTE

Strany 65

171.12 OMNIFiber’s LED IndicatorsLED Color Description850 nm Green OMNIFiber is transmitting at 850 nm850 nm Green OMNIFiber is(flashing) transmitting

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18OMNISCANNER2. Push the OMNIFiber adapter onto OMNIScanner’s 160-pin connector until itsnaps into position.3. To remove OMNIFiber, use the pushbutton

Strany 68

191.14.1 PREDEFINEDLISTSTo quickly and easily select Projects, Autotests, Cables, etc., OMNIScanner2 usespredefined lists.1. Use the up-arrow or down-

Strany 69

20OMNISCANNER4. Press ENTER or ESC to accept the value and terminate edit mode.1.14.3 EDITINGALPHANUMERICFIELDSTo start the editing procedure for fiel

Strany 70 - 4.7 Autotest Run Options

214. Use the up-arrow or down-arrow key to move to the appropriate character, orsimply press 8 on your keypad repeatedly until the appropriate letter

Strany 71 - 4.8 Autotest Save Options

22OMNISCANNERSelect Remote Info to open the REMOTE INFO screen, which contains thedate the reference was last set, the hardware and software informati

Strany 72

23CHAPTER 2: Getting Started: Twisted Pair Networks2. Getting Started: Twisted PairNetworks2.1 Charging OMNIScanner’s BatteryTo operate the OMNIScanne

Strany 73 - 4.9 User Options

24OMNISCANNERPress (Diagnostics) to view and manage stored test results.Press (Results) to view and manage stored test results. 2.3 Certification of

Strany 74 - 4.11 Remote Info

25CHAPTER 2: Getting Started: Twisted Pair NetworksScanlink Tools supports the following:• Upload test results.• Storage of test results to files (Sca

Strany 75

26OMNISCANNER1. To set the reference, connect OMNIScanner and OMNIRemote using the testcable and adapter supplied with the scanner (as shown).2. Turn

Strany 76 - 4.13 Format MMC

27CHAPTER 2: Getting Started: Twisted Pair Networks3. Use the up-arrow or down-arrow to highlight Autotest and press ENTER. 4. Select the appropriate

Strany 77 - 5. Measurements

1FCC INFORMATIONFEDERAL COMMUNICATIONS COMMISSIONANDCANADIAN DEPARTMENT OF COMMUNICATIONSRADIO FREQUENCY INTERFERENCE STATEMENTSThis equipment generat

Strany 78 - 5.2 General Information

28OMNISCANNERThe Adapter field will automatically change to reflect the adapter that iscurrently attached. OMNIScanner auto-senses the adapter. If the

Strany 79 - CHAPTER 5: Measurements

29CHAPTER 2: Getting Started: Twisted Pair Networks4. The Autotest screen is displayed while Autotest is running.The Autotest and the Cable name are d

Strany 80

30OMNISCANNER3. To assign a unique name to the Autotest, enter a Circuit ID into the CircuitID: field. Circuit IDs can be set up to automatically incr

Strany 81

31CHAPTER 2: Getting Started: Twisted Pair Networksand select or unselect the graphs to be saved. (See Section 3.7, AutotestOptions for more informati

Strany 82

32OMNISCANNER2.6.2 VIEWINGTWISTEDPAIRAUTOTESTRESULTSThis viewing option is only available immediately after the Autotest was performed. To view stored

Strany 83

33CHAPTER 2: Getting Started: Twisted Pair NetworksPressto view

Strany 84

34OMNISCANNERMost Autotest result screens have a retest feature for diagnostic purposes.Press (Retest) to run continuous tests for the same cable. Th

Strany 85

35CHAPTER 2: Getting Started: Twisted Pair NetworksTests that require the use of OMNIRemote will have small icons in the upperright corner of the titl

Strany 86

36OMNISCANNERThe RETURN LOSS and NEXT Graph screens have (Diagnostic)function keys to help you with the interpretation of failed test results. (SeeCh

Strany 87

37CHAPTER 2: Getting Started: Twisted Pair NetworksThe Punch Down Block Adapter kits 110 A Link Adapter and 110 B LinkAdapter are available (as option

Strany 88

2OMNISCANNERNORMAS OFICIALES MEXICANAS (NOM)ELECTRICAL SAFETY STATEMENTINSTRUCCIONES DE SEGURIDAD1. Todas las instrucciones de seguridad y operación d

Strany 89

38OMNISCANNERNOTEBest results for Category 6 channel tests will be obtained when usingOMNIScanner software version 4.0 or higher.2.7.4 PERMANENTLINKFo

Strany 90

39CHAPTER 3: Getting Started: Fiber Optic Networks3. Getting Started: Fiber OpticNetworks3.1 Charging OMNIScanner’s BatteryIn order to operate the OMN

Strany 91

40OMNISCANNER3.3 Certification of Fiber InstallationsOMNIScanner and OMNIFiber are designed to efficiently certify fiber opticcabling installations th

Strany 92

41CHAPTER 3: Getting Started: Fiber Optic Networks6. Attach OMNIFiber Remote to the corresponding patch panel or outlet at theother end of the cable l

Strany 93

42OMNISCANNER3. Select the appropriate Reference Method: A, B, or C.OMNIScanner will store a separate reference value for each wavelength.OMNIScanner

Strany 94

43CHAPTER 3: Getting Started: Fiber Optic Networks4. Once the reference value has been set, OMNIScanner will display the FIBERINFO screen. 5. Press ES

Strany 95

44OMNISCANNER3. Use the up-arrow or down-arrow to highlight Autotest: and press ENTER.4. Select the appropriate Autotest from the pop-up list and pres

Strany 96

45CHAPTER 3: Getting Started: Fiber Optic Networks3.6 Running An Autotest for Fiber Optic Cabling3.6.1 PREPARING ANAUTOTEST1. Connect OMNIFiber Main t

Strany 97

46OMNISCANNER4. Press .METHOD BTo run an Autotest when Method B was used to set the Reference proceed asfollows:1. Do not disconnect the black connec

Strany 98

47CHAPTER 3: Getting Started: Fiber Optic Networks1. Do not disconnect the launch cables that are attached to the OMNIFiberadapters.2. Remove the midd

Strany 99 - 6. Diagnostics

3NOM STATEMENT12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarizacióndel equipo no sea eliminada.13. Los cables de la fuen

Strany 100

48OMNISCANNER2. Do not disconnect the coupler from the black launch cable (it is circled in thegraphic). 3. Disconnect the white launch cable from the

Strany 101 - CHAPTER 6: Diagnostics

49CHAPTER 3: Getting Started: Fiber Optic Networks2. To change the number of Splices, use the down-arrow to highlight the fieldand press ENTER. Use th

Strany 102 - 6.3 TDNXT

50OMNISCANNER3.8 Fiber Autotest ResultsOnce the Autotest is completed the Autotest screen will be displayed.The arrows at the top of the screen indica

Strany 103

51CHAPTER 3: Getting Started: Fiber Optic NetworksNOTEValues measured with OMNIFiber will be compared against thepreprogrammed PASS/FAIL limits. OMNIS

Strany 104

52OMNISCANNER4. Setup4.1 Configuring OMNIScannerOMNIScanner’s easy-to-use setup feature allows you to define, edit and presetmany items. They are conv

Strany 105

534.2 Set ReferenceConnect OMNIScanner and OMNIRemote through their test connector portsusing the test cable and the MOD 8 adapter. Select Set Referen

Strany 106 - 6.4 TDRL

54OMNISCANNERSETREFERENCE WITH THEOMNIFIBERADAPTERSNOTEThe fiber reference expires each day at midnight. It must be set eachcalendar day that OMNIFibe

Strany 107

55The Set Reference screen will be displayed while the reference data is beingestablished.OMNIScanner notifies you when the process has been completed

Strany 108

56OMNISCANNERIf there are Autotest specifications in a folder, it will appear full ;otherwise it will be empty .Highlight a folder containing items

Strany 109

57VIEWINGDETAILS FORCOPPER ANDFIBERAUTOTESTSFor twisted-pair cabling, the Autotest Detail screen consists of four pages.Use the and function keys t

Strany 110

4OMNISCANNERTRADEMARKSThe trademarks mentioned in this manual are the sole property of their owners.

Strany 111 - 7. Results

58OMNISCANNERThe third page lists limits for ELFEXT, ACR, and Power Sum NEXTmeasurements.The fourth page shows limits for Power Sum ELFEXT and Power S

Strany 112

59For fiberoptic cabling the View Autotest Detail screen shows thestandard being used in the titlebar.The tests that are performed during an Autotest

Strany 113 - CHAPTER 7: Results

60OMNISCANNERFor all other tests, the Loss for 850, 1300, and/or 1310 is displayed.Press ESC to return to the Setup screen.4.4 CablesSelect Cables to

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61CHAPTER 4: SetupUse the or to highlight the desired cable.Copper cables are marked with a twisted pair icon.Multimode fiber cables are marked wit

Strany 115

62OMNISCANNERWith a twisted pair or a coaxial cable highlighted, press (Edit) to edit an existing custom cable. Cable Name, NVP, or Impedance can be

Strany 116

63CHAPTER 4: SetupTo determine the NVP of a cable with a known length, press (Measure)to capture the length of the cable using the displayed NVP. Use

Strany 117 - 8. Fiber Optic Reference

64OMNISCANNERA fiber cable’s Graded Refractive Index (GRI) differs depending on thesupplier. To receive accurate length results, OMNIScanner allows yo

Strany 118 - 8.3 The Reference Methods

65Press (Set Default) to select it as the Project to be used and to return tothe Setup screen. Press (Delete) to permanently remove a project.NOTEDe

Strany 119 - METHOD B

66OMNISCANNERPress (New) to create a new project. New Project will be displayed in the Name: field. Press ENTER to edit the name.The first and last C

Strany 120

67Enter MT-F12 (MICROTEST-Floor 12) -PP02 (Patch Panel 02) -P48 (Position48) in the Last Circuit ID field. Press ENTER to terminate the edit mode.The

Strany 121 - METHOD C

5CONTENTSCONTENTS1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.1 The Digital Solution

Strany 122 - 2 m Launch Cable

68OMNISCANNER4.6 ConfigurationsSelect Configurations to display the CONFIGURATIONS screen. It contains a listof all configurations which are currently

Strany 123 - 9. Uploading and Printing

69Use the down-arrow to highlight the other checkbox. Press if you want OMNIScanner to automatically move to the failed testresult. The Jump to Fail

Strany 124 - 10. Updating Scanner Software

70OMNISCANNEROMNIScanner2 only: Press ENTER to change the Destination: from MMC(MultiMediaCard™) to Internal. Use the up-arrow and down-arrow keys toh

Strany 125

71CHAPTER 4: Setup4.9 User OptionsSelect User Options to display the USER OPTIONS screen. This screen containsseveral user-definable preferences. Pres

Strany 126 - 11. Multi Media Card

72OMNISCANNERand use the up-arrow and down-arrow keys to highlight a language. Press ENTERonce more to select it as the default language.Press to sav

Strany 127 - CHAPTER 11: MultiMediaCard

73CHAPTER 4: SetupThe Battery status is represented as a gauge. Factory calibration* data isdisplayed at the bottom of the screen.You may need to prov

Strany 128 - 12. Universal Serial Bus Port

74OMNISCANNERThe currently used reference method(s) are displayed on the bottom of thescreen.Press ESC to return to the SETUP screen.4.13 Format MMCOM

Strany 129

75CHAPTER 5: Measurements5. MeasurementsNOTEThe list of tests in the Measurement screen changes depending on theadapter that is currently attached to

Strany 130

76OMNISCANNERHighlight the test you want to perform using the up-arrow or down-arrow key onyour keypad and press ENTER, or direct-dial a test by press

Strany 131

77CHAPTER 5: MeasurementsTests that require the use of OMNIRemote will have small icons in the upperright corner of the titlebar indicating whether th

Strany 132

6OIMNISCANNER3.5 Project Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433.6 Running an Autotest for Fiber

Strany 133

78OMNISCANNERUse the cursor to display values for the desired frequency.5.3 Twisted Pair Measurements with OMNIScanner5.3.1 WIREMAPThe Wiremap functio

Strany 134 - Specifications

79CHAPTER 5: Measurements• A reversed number indicates a split pair.• A straight line between pairs indicates a good pair.• No line between wire pair

Strany 135 - A.4 Environmental

80OMNISCANNERpropagates down the cable (NVP), OMNIScanner then calculates the length of thecable.Skew is the difference between the delay on the longe

Strany 136 - A.8 MultiMediaCard Interface

81CHAPTER 5: Measurementsmeasuring the NEXT for the OMNIRemote end, the roles of the two units arereversed. OMNIScanner provides the termination; OMNI

Strany 137 - A.9 Memory

82OMNISCANNERPress (Pairs) to view the NEXT graphs for other pair combinations.Press (Diagnostics) to display the TDNXT screen, where cabling and/or

Strany 138 - A.12 OMNIFiber Test Functions

83CHAPTER 5: MeasurementsPress ESC to exit the ATTENUATION screen.NOTEAttenuation always reports the worst dB value regardless of the Report:setting i

Strany 139 - A.17 Return Loss

84OMNISCANNERPress or to toggle between the Return Loss results forOMNIScanner and OMNIRemote.Press (Graph) to display the Return Loss graph for th

Strany 140 - A.21 Bandwidth

85CHAPTER 5: MeasurementsThe scrollbar indicates that there are more test results. Use the down-arrow onOMNIScanner’s keypad to scroll through the lis

Strany 141

86OMNISCANNERBandwidth is a measure of the usable frequency range of the link under test.For most networks, this is the highest frequency at which the

Strany 142

87CHAPTER 5: MeasurementsPress (Pairs) to view Attenuation/NEXT graphs for other paircombinations.Press ESC to exit the ACR screen.5.3.8 RESISTANCERe

Strany 143 - Appendix B: Batteries

7CONTENTS5.3.11 Power Sum ACR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 895.3.12 Office Locator . . . . . . . . . . . . . .

Strany 144 - B.3 Battery Tips

88OMNISCANNERThe pairs are displayed in the column on the left side, followed by the PS NEXTin decibels (dB), the margin/limit, and the frequency. The

Strany 145 - PASS/FAIL Criteria

89CHAPTER 5: MeasurementsThe pairs are displayed in the column on the left side, followed by thePSEFLEXT in decibels (dB), the margin/limit, and the f

Strany 146 - Appendix D: Cable Pinouts

90OMNISCANNERThe POWER SUM ACR screen displays the pairs in the column on the left side,followed by the PS ACR in decibels (dB), the margin/limit, and

Strany 147 - APPENDIX C: Cable Pinouts

91CHAPTER 5: Measurements1. Connect the cable to be tested to OMNIScanner.2. Insert the RJ-45 Office Locator adapters into wall outlets in the offices

Strany 148

92OMNISCANNERPress ESC to exit the OFFICE LOCATOR screen.5.4 Fiber Optic Measurements with OMNIFiber5.4.1 LENGTH/DELAYThe Length/Delay function measur

Strany 149

93CHAPTER 5: MeasurementsThe LENGTH/DELAY screen displays the GRI @ 1300 nm (nanometers).The length limit and the actual derived length are displayed

Strany 150

94OMNISCANNERFor dual fiber testing, the arrows at the top of the screen point out the directionof the light and indicate which fiber the result is fo

Strany 151

95CHAPTER 5: MeasurementsWhen OMNIFiber is attached to OMNIRemote, the remote unit can be used asa light source. With the OMNIFiber adapter attached,

Strany 152

96OMNISCANNEREach Cable or transmission line is designed to have specific impedance, whichallows proper matching to the currents of the transmitter an

Strany 153

976. Diagnostics6.1 OMNIScanner’s Diagnostic FunctionsOMNIScanner has several advanced diagnostic test functions to help you with theidentification of

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