OMNIScanner TM featuring OMNIFiber TM the future of network testing
TM OMNIScanner2 OMNIScanner LT OMNIFiber TM TM 7IAH /KE@A ENGLISH A Guide to using the Microtest OMNIScanner to install, manage, and troubleshoot high performance cabling systems as well as multi- and single-mode fiber. OMNIScanner verifies installed links against all common cabling and network standards including Category 6/Class E and Gigabit Ethernet. OMNIFiber verifies installed links against TIA and ISO standards, as well as other fiber network application requirements. 2950-4500-06E Rev.
OMNIScanner User Guide Contents Chapter 1 - Introduction .................................................................................. 1 - 1 The Digital Solution for Fiber and Copper ...................................................... 1 - 1 The Graphical User Interface .......................................................................... 1 - 1 OMNIRemote ................................................................................................... 1 - 1 OMNIFiberTM .......................
OMNIScanner User Guide Chapter 3 - Getting Started Fiber Optic Networks .......................................... 3 - 1 Charging OMNIScanner’s Battery ................................................................... 3 - 1 OMNIScanner’s Project Screen ....................................................................... 3 - 1 Certification of Fiber Installations ................................................................... 3 - 2 Preparation .......................................................
OMNIScanner User Guide General Information ........................................................................................ 5 - 3 Twisted Pair Measurements with OMNIScanner ................................... 5 - 5 Wiremap ...................................................................................................... 5 - 5 Length/Delay ................................................................................................ 5 - 5 NEXT ..................................................
OMNIScanner User Guide The Reference Methods .................................................................................. 8 - 2 One Jumper Reference Method ................................................................ 8 - 3 Two Jumper Reference Method ................................................................ 8 - 4 Three Jumper Reference Method ............................................................. 8 - 5 Two Jumper Reference Method in Loopback Mode .................................
OMNIScanner User Guide Chapter 1 - Introduction The Digital Solution for Fiber and Copper OMNIScanner is the most advanced hand-held certification and diagnostic tool for the verification of copper links. The Category 7, 6, 5E (Enhanced), 5 and ISO Class F, E, D, and C tester has an extended frequency range of 300 MHz.
OMNIScanner User Guide OMNIFiberTM OMNIFiber transforms OMNIScanner and OMNIScanner2 into a fiber optic tool for testing and certification of multimode and single-mode fiber premise networks. OMNIFiber consists of two test heads that attach directly onto OMNIScanner and OMNIRemote to become a part of each unit. Using the 1-Button Autotest feature, OMNIFiber measures loss and length over two fibers simultaneously.
OMNIScanner User Guide OMNIScanner’s Display Scanner Display Function 1-2 or 12/36: The paired numbers in the display indicate wire pairs. For example, 1-2 indicates the wire pair of pins 1 and 2. 12/36 indicates two wire pairs tested, the first pair of pins 1 and 2, and the second pair of pins 3 and 6. Pop-up lists: Pop-up lists are available by pressing ENTER when the cursor is located on user definable fields. A predefined selection list will appear, and the rest of the display will be inactive.
OMNIScanner User Guide ADAPTER CONNECTOR FUNCTION KEYS ON/OFF BACKLIGHT AUTOTEST ESCAPE ALPHANUMERIC KEYS ARROW KEYS ENTER UPPER/LOWER CASE SWITCH KEY HELP KEY AC ADAPTER USB PORT (OMNISCANNER2) DB-9 SERIAL CONNECTOR MMC CARD SOCKET (OMNISCANNER2) OMNIScanner’s Keypad ON/OFF When turned on OMNIScanner will display the project screen. Backlight Press the Backlight key to toggle the backlight between its two levels of brightness.
OMNIScanner User Guide screen. Use the é and ê keys on the keypad to adjust the display contrast. In addition to contrast adjustments, the screen displays hardware version, software version, serial number information, and the date and time when the unit was last Factory Calibrated. AUTOTEST Autotest Press the Autotest key to run a custom or predefined Autotest. ESC ESC Press the Escape key to cancel the current operation.
OMNIScanner User Guide Function Keys The functions of the 4 keys vary depending on the current display.
OMNIScanner User Guide OMNIRemote’s LED Indicators LED Color PASS Green Description Overall Autotest Result is PASS Status Green (flashing) OMNIRemote is ready for testing Green (consistent) OMNIRemote is active FAIL Red Overall Autotest Result is FAIL Circuit Orange Guard Hazard condition is detected. LED will be lit in 5 second intervals until the hazard condition disappears.
OMNIScanner User Guide When To Use OMNIRemote Most measurements require the use of OMNIRemote at the far end of the cable. For other measurements, OMNIRemote can be connected, but its use is optional. OMNIScanner detects the presence of the remote unit and automatically configures it for the measurement to be performed.
OMNIScanner User Guide OMNIScanner displays test results for both ends of the link. Press or to toggle the display between Scanner and Remote test results. Note: Refer to the graphics in Chapter 2 - Getting Started: Typical Test Configurations for instructions on connecting OMNIScanner and OMNIRemote for basic link and full channel tests.
OMNIScanner User Guide OMNIFiber MM LED Indicators LED Color Description 850nm Green OMNIFiber is transmitting at 850 nm 850nm Green (flashing) OMNIFiber is transmitting modulated light at 850 nm 850nm Orange 1300/ Green 1310nm Part 1 of Two Way test completed, switch fibers OMNIFiber is transmitting at 1300/1310nm 1300/ Green (flashing) OMNIFiber is transmitting 1310nm modulated light at 1300/1310 nm 1300/ Orange 1310nm Part 1 of Two Way test completed, switch fibers OMNIFiber SM LED Indicat
OMNIScanner User Guide Attaching the OMNIScanner Fiber Adapters Note: Use dust caps to protect the connectors from dirt. Keep the connectors covered when the Fiber Adapters are not in use. This helps to ensure that contaminants from handling fiber do not affect test measurements. Note: Both OMNIFiber adapters have 160 pin connector covers. Keep the 160 pin connectors covered when the Fiber Adapters are not in use. To attach a fiber adapter to OMNIScanner proceed as follows: 1.
OMNIScanner User Guide Editing With OMNIScanner OMNIScanner includes sophisticated easy-to-use editing methods to accommodate a variety of user-definable items. Different fields have different editing procedures. Please follow the described procedures to make editing with the OMNIScanner effortless. Note: All editable fields can be easily recognized by their dotted borders. Predefined Lists To quickly and easily select Projects, Autotests, Cables, etc. OMNIScanner uses predefined lists. 1.
OMNIScanner User Guide Editing Alphanumeric Fields To start the editing procedure for fields that contain alphabetic and numeric characters use the alphanumeric keypad. 1. Use the é or ê arrow keys to move the cursor to the field to be edited. The entire field will be highlighted in black. 2. Press ENTER. Notice that the field is now highlighted in white and the main screen in the background turns gray to indicate that the edit mode has been launched. The first letter in the field is highlighted in black.
OMNIScanner User Guide Technical Support If you have technical questions, you may contact Microtest Technical Support by phone, fax, or e-mail. Note: Before calling Technical Support, please have your Serial number, and the Hardware and Software Version numbers available. See Product Versions section below. Americas and Asia Pacific: 1-800-NET-FIXR (1-800-638-3497) (U.S. and Canada only) 1-800-419-8991 (FAX) (U.S. and Canada only) 1-602-952-6494 (FAX) support@microtest.com (E-mail) www.microtest.
OMNIScanner User Guide Product Versions To display the software version #, the hardware version #, the serial #, and the factory calibration data for OMNIScanner, press and hold the Backlight key. The CONTRAST screen will be displayed, which contains information that you may need to provide when calling Technical Support.
OMNIScanner User Guide 1 - 16
OMNIScanner User Guide Chapter 2 - Getting Started Twisted Pair Networks Charging OMNIScanner’s Battery In order to operate the OMNIScanner and OMNIRemote with battery power, the battery must first be charged. Until the charging cycle is complete, the units can run with the AC adapter plugged in. (See Appendix B Batteries for more information about the batteries.) OMNIScanner’s Project Screen OMNIScanner’s project screen is designed to allow you to perform all typical work flow operations.
OMNIScanner User Guide Certification of Network Installations OMNIScanner is designed to efficiently certify cabling installations through its Autotest feature. Test results, test specifications, and cable types are organized into Projects. The Project, its test specifications and cable types are selectable from the OMNIScanner Project screen. OMNIScanner contains a number of predefined projects, grouped by test standards, to allow easy and fast operation.
OMNIScanner User Guide The following sections provide detail on the certification process. Setting the Reference A reference must be set when OMNIScanner and OMNIRemote are used as a set for the first time. After the initial reference setting, the process should be repeated periodically to ensure unit verification. OMNIScanner stores reference data for up to 5 remote units by serial number. 1.
OMNIScanner User Guide Project Selection A project name must be selected for test result management. Autotests and Cables were previously assigned to a specific project through the use of the OMNIScanner Configuration utility. (See Chapter 9 - Uploading and Printing for further information about OMNIScanner Configuration.) The Project feature is very useful for grouping test results and eases uploading and sorting of Autotests stored in the scanner. 1. Use the é or ê to highlight Project: and press ENTER.
OMNIScanner User Guide Running an Autotest for Twisted Pair Cabling 1. Connect OMNIScanner to the near end of the twisted pair cable you are testing and connect OMNIRemote to the far end. (See the Typical Test Configurations for Twisted Pair Cabling section in this chapter for more information.) AUTOTEST 2. Press the key. When testing twisted pair cable, OMNIScanner will immediately verify that OMNIRemote is attached.
OMNIScanner User Guide Saving Twisted Pair Autotest Results 1. Press (Save) from the AUTOTEST screen to open the SAVE AUTOTEST screen, where the Autotests can be stored into OMNIScanner’s memory. 2. The Project: field contains the name of the project. 3. To assign a unique name to the Autotest, enter a Circuit ID into the Circuit ID: field. Circuit IDs can be setup to automatically increment. (See Chapter 4 Setup: Projects: Editing a Circuit ID for further information.
OMNIScanner User Guide selected Save Option. Press memory. (Save) to save the test results to OMNIScanner’s internal Press (Save with Graphs) to save the test results with their graphs to OMNIScanner’s internal memory. Note: Saving graphs will reduce the number of Autotests that can be stored. Press (Save to MMC) to save the test results to the MultiMediaCard. (OMNIScanner2 only.) Press (Save with Graphs to MMC) to save the test results with their graphs to the MultiMediaCard. (OMNIScanner2 only.
OMNIScanner User Guide 2-8
OMNIScanner User Guide Most Autotest result screens have a retest feature for diagnostic purposes. (Retest) to run continuous tests for the same cable. The Press arrow located on the Retest button will be turning for the duration of the test. Press (Retest) once more to stop the continuous measurement. OMNIScanner will display the last measured data. Note: Retest invalidates an Autotest. After using the retest feature, the Autotest must be repeated before results can be saved.
OMNIScanner User Guide The RETURN LOSS and NEXT screens have (Diagnostic) function keys to help you with the interpretation of failed test results. (See Chapter 6 - TDRL and TDNXT for detailed information.
OMNIScanner User Guide Typical Test Configurations for Twisted Pair Cabling Basic Link Modular 8 Jack The graphic shows the connection of OMNIScanner to a Modular 8 Jack in the wiring closet, and OMNIRemote to a Modular 8 jack in the work area. Modular 8 (RJ-45) Link Adapter Use the supplied MICROTEST Link Adapters at both ends of the link to attach OMNIScanner and OMNIRemote to the Modular 8 jacks.
OMNIScanner User Guide Full Channel with Modular 8 Jacks A Full Channel consists of all the link elements from the hub to the workstation. 110 Block For cables terminated with a modular 8 plug, use the supplied modular 8 MICROTEST Channel Adapter* and attach OMNIScanner and OMNIRemote to the channel patch cords. Modular 8 Jack User Cable Cat 5/5E/6 Channel Adapter *MICROTEST Channel Adapters are available as optional accessories for OMNIScanner LT.
OMNIScanner User Guide Chapter 3 - Getting Started Fiber Optic Networks Charging OMNIScanner’s Battery In order to operate the OMNIScanner and OMNIRemote with battery power, the battery must first be charged. Until the charging cycle is complete, the units can run with the AC adapter plugged in. (See Appendix B - Batteries for more information about the batteries.) OMNIScanner’s Project Screen The Project screen is designed to allow you to perform all typical work flow operations.
OMNIScanner User Guide Certification of Fiber Installations OMNIScanner and OMNIFiber are designed to efficiently certify fiber optic cabling installations through the Autotest feature. Test results, test specifications, and cable types are organized into Projects. The Project, its test specifications and cable types are selectable from the OMNIScanner Project screen. OMNIScanner contains a number a predefined projects, grouped by test standards, to allow easy and fast operation.
OMNIScanner User Guide Scanlink Tools support the following: • Upload test results • Storage of test results to files (Scanlink proprietary format) • Print test reports • Export results in CSV format • Setup Projects • Edit Autotest Information Setting the Reference for Fiber Optic Cabling Note: To ensure consistent accurate measurements, the reference value must be set each time the connector adapter or the test configuration is changed.
OMNIScanner User Guide cables remain attached to the fiber adapters’ TX (transmit) ports so that the connections are not disturbed. 6. Once the reference value has been set, OMNIScanner will display the FIBER INFO screen. 7. Press ESC to return to the SETUP screen. Project Selection A project name must be selected for test result management. Autotests and Cables were previously assigned to a specific project through the use of the OMNIScanner Configuration software.
OMNIScanner User Guide The Adapter: field will automatically change to reflect that OMNIFiber is currently attached. OMNIScanner auto-senses the adapter. If the adapter is changed, OMNIScanner will automatically adjust the content in the fields Autotest: and Cable: to reflect the new setup. Every Project has certain Autotests and cables assigned already. These associated lists will appear in the pop-up lists for each item.
OMNIScanner User Guide 4. Press . 1 JUMPER METHOD AUTOTEST To run an Autotest when the 1-Jumper Method was used to set the Reference proceed as follows: 2 m Launch Cable TX RX RX TX 850 nm 1300/1310 nm 1300/1310 nm Cable under Test 850 nm 2 m Launch Cable Wall Plate Patch Panel 1. Do not disconnect the black connectors which are attached to the TX port of the OMNIFiber. 2. Disconnect the black connectors that are attached to the RX ports of the OMNIFiber. 3.
OMNIScanner User Guide TX RX RX TX 850 nm 1300/1310 nm Patch Panel Wall Plate 4. Press 1300/1310 nm 2 m Launch Cable Cable under Test 850 nm 2 m Launch Cable . Loopback Autotest using OMNIFiber Main This configuration is used to test single fibers, reels and short cables when both ends of the fiber under test are accessible from the same location. Note: The loopback Autotest assumes that the 2-Jumper Method was used to make the reference measurement.
OMNIScanner User Guide Running a Fiber Autotest Some Autotests do not have a fixed loss limit. The Optical Link Budget (OLB) is calculated based on the wavelength, the length of the cable, and the number of connectors and splices. OMNIScanner will automatically display the CONNECTIONS screen if you are running an equation based Autotest (TIA 568A, ISO 11801, or 1000 Base F). 1. With the Connections: field highlighted, press ENTER. Use the é or ê arrow key to adjust the number of connections in your link.
OMNIScanner User Guide Fiber Autotest Results Once the Autotest is completed the Autotest screen will be displayed. The arrows at the top of the screen indicate the direction of the light. ▼ points to the result measured from OMNIRemote to OMNIScanner. ▲ points out the result measured from OMNIScanner to OMNIRemote. The overall test result for each fiber is located right below the arrows, (PASS) or (FAIL). The name of the Autotest is displayed at the top of the screen followed by the name of the fiber.
OMNIScanner User Guide 3 - 10
OMNIScanner User Guide Chapter 4 - Setup Configuring OMNIScanner OMNIScanner’s easy-to-use setup feature allows you to define, edit and preset many items. They are conveniently organized and can be easily accessed by pressing the assigned number on your alphanumeric keypad, or by highlighting the item and then pressing ENTER. (Setup) function key to open the è è è From the Project screen press the SETUP screen.
OMNIScanner User Guide Set Reference Connect OMNIScanner and OMNIRemote through their test connector ports using the Link Adapter and the Channel Adapter*. Select Set Reference to display the SET REFERENCE screen. OMNIScanner will immediately start to communicate with OMNIRemote. *Use the Set Reference Adapter with OMNIScanner LT. While the reference data is being established, a gauge indicates the progress. OMNIScanner notifies you when the process has been completed.
OMNIScanner User Guide Autotests Select Autotests to display the AUTOTESTS screen. It contains a list of standard Autotest specifications supported by OMNIScanner. Standards are grouped by TIA, ISO, VENDOR, MICROTEST, IEEE, ATM, and AS/NZ. If there are Autotest specifications in a folder, it will appear full , otherwise it will be empty . Highlight a folder containing items and press ENTER to display the list of Autotests contained in that folder.
OMNIScanner User Guide The second page shows limits for Resistance, NEXT, Attenuation, and Return Loss. The third page lists limits for ELFEXT, ACR, and Power Sum NEXT measurements. The fourth page shows limits for Power Sum ELFEXT and Power Sum ACR. This screen also informs you whether or not OMNIRemote is required to perform the selected Autotest. Test that are performed during an Autotest are clearly marked . Tests that are not required when performing an Autotest have no icon.
OMNIScanner User Guide 50 µm fibers. When running an Autotest, OMNIScanner will choose the appropriate Autotest limits based on the selected fiber. Use the function key to view the limits for single-mode fibers. When viewing limits for equation-based Autotests like TIA 568B, ISO 11801, and 100Base-F, the Loss per km (kilometer) will be displayed. For all other tests the Loss for 850nm, 1300nm, 1310nm, and/or 1550nm is displayed. Press ESC to return to the SETUP screen.
OMNIScanner User Guide If you cannot find or do not know the name of your cable manufacturer, simply select a cable from the Generic folder, or create a new cable. (Delete) to permanently remove a custom cable. Note: Press Default cables cannot be removed. With a twisted pair or a coaxial cable highlighted, press (Edit) to edit an existing custom cable. Cable Name, NVP, or Impedance can be changed. Note: Default cables cannot be edited.
OMNIScanner User Guide With a or fiber optic cable highlighted, press (Edit) to edit an (New) to create a new fiber based existing custom cable, or press on the GRI values of the highlighted cable. Cable Name and GRI @ 1300 (multimode) or 1310 (single-mode) can be viewed and changed. Note: Default fibers cannot be edited. A fiber cable’s Graded Refractive Index (GRI) differs depending on the supplier.
OMNIScanner User Guide Note: Default Projects cannot be deleted. Only projects without stored Autotests can be deleted. Press Circuit ID. (Edit) to edit an existing project and its The project name will appear in the Name: field. The first and last Circuit ID fields contain a default circuit ID. (See Editing a Circuit ID for further information.) Press (List) to display the Circuit ID screen. It contains a scrollable list of all Circuit IDs created for the project. Press (New) to create a new project.
OMNIScanner User Guide Press ENTER to terminate the edit mode. Use the ê to highlight the Last Circuit ID: field and press ENTER. Enter MT-F12 (MICROTEST - Floor 12) -PP02 (- Patch Panel 02) -P48 (Position 48) in the Last Circuit ID: field. Press ENTER to terminate the edit mode. The Circuit IDs will increment from right to left. The positions will change first from 01 to 48. Next the Patch Panels will increase from 01 to 02. Last the floors will increase from 01 to 12. Press created.
OMNIScanner User Guide Configurations Select Configurations to display the CONFIGURATIONS screen. It contains a list of all configurations which are currently stored on the MultiMediaCard that can be read by OMNIScanner2. (See Chapter 11 MultiMediaCard for more information about the MMC). The predefined Default Configuration is always present and can be used to reset OMNIScanner to the factory default. It contains the following projects: TIA, ISO/IEC, VENDOR, Microtest, IEEE, ATM, AS/NZ, ANSI.
OMNIScanner User Guide be reported, as in OMNIScanner software versions prior to v4.0. Press ENTER to set the default. Note: Attenuation results in dB will always be reported for the worst value, regardless of what is selected in the Report: listbox. Use the ê to highlight the Fiber Test Options checkbox. You will be able to define the way fiber optic Autotests are performed. Press if you want OMNIFiber to test the fiber link in both directions. The Test in Both Directions box will be checked Press .
OMNIScanner User Guide Depending on the performed Autotest, NEXT/PSNEXT, ELFEXT/PSELFEXT, Return Loss, and Attenuation graphs can be saved. Use the éê to highlight the Save Graph Option checkboxes. Press to select the graph to be saved. Press (Save) to save your changes and return to the SETUP screen. Press ESC to discard the changes and return to the SETUP screen. User Options Select User Options to display the USER OPTIONS screen. This screen contains several user definable preferences.
OMNIScanner User Guide name will appear on printed reports. Press ENTER to end the edit mode. Press to save all settings and return to the SETUP screen. Adapter Usage Select Adapter Usage to display the ADAPTER USAGE screen. The number of Autotests that have been performed with the Adapter that is currently attached to OMNI: and Remote: is displayed below each adapter’s name (Adapter ID String). Press ESC to return to the SETUP screen. Remote Info Select Remote Info to display the REMOTE INFO screen.
OMNIScanner User Guide Fiber Adapter Info Select Fiber Info to display the FIBER INFO screen. The Serial numbers and the date the adapters were last factory calibrated is displayed. The currently used reference method(s) are displayed on the bottom of the screen. Press ESC to return to the SETUP screen. Format MMC OMNIScanner2 only: When using the MultiMediaCard for the first time, it may require formatting. Insert the MMC into OMNIScanner2’s MMC slot. Select Format MMC to open the FORMAT MMC screen.
OMNIScanner User Guide Use the è to advance to the Date: field. Press ENTER to change the date format. DD is the day setting, MM is the month setting, YY is the year setting. Use the éê keys to highlight the desired format and press ENTER to select it as the default date format. Use the è to advance to the Decimal Separator: field and switch the decimal symbol from , (comma) to . (period). Use the éê keys to highlight the desired symbol and press ENTER once more to select it as the default separator.
OMNIScanner User Guide 4 - 16
OMNIScanner User Guide Chapter 5 - Measurements Note: The list of tests in the Measurement screen changes depending on the adapter that is currently attached to OMNIScanner. Performing Individual Measurements with OMNIScanner OMNIScanner allows you to perform tests on twisted pair, fiber optic and coaxial cabling. Measuring Twisted Pair Cabling OMNIScanner allows you to run various individual tests.
OMNIScanner User Guide Measuring Fiber Optic Cabling With the OMNIFiber adapter attached, press the (Measurements) function key to display the MEASUREMENTS screen for fiber optic cabling. Measuring Coaxial Cabling With the coax adapter attached, press the (Measurements) function key to display the MEASUREMENTS screen for coaxial cabling.
OMNIScanner User Guide General Information Most test result screens have a retest feature for diagnostic purposes. Press (Retest) to run continuous tests for the same cable. Press (Retest) once more to stop the continuous measurement. OMNIScanner will display the last measured data. Tests that require the use of OMNIRemote will have small icons in the upper right corner of the titlebar indicating whether the information on the screen is pertinent for OMNIScanner or OMNIRemote.
OMNIScanner User Guide Use the ç or è keys to move the cursor within the graph. 1x 2x 4x Use the cursor to display values for the desired frequency.
OMNIScanner User Guide Twisted Pair Measurements with OMNIScanner Wiremap The Wiremap function tests twisted-pair cabling for proper wiring. Your cabling configuration is checked for shield continuity, opens, shorts, crossed pairs, split pairs, and reversed pairs. For each pair, Wiremap displays the length. The screen displays a graphical representation of the wiring in your cable, where the near end wiring is shown on the left side, and the wiring on the right side of the screen.
OMNIScanner User Guide Delay is a measure of the time required for a pulse to travel from one end of the link to the other. OMNIScanner measures the delay from when the pulse was sent to when the reflection was received. Knowing the speed that the pulse propagates down the cable (NVP), OMNIScanner then calculates the length of the cable. Skew is the difference between the pairs with the longest and shortest delay. The LENGTH/DELAY screen shows the test result information for all pairs.
OMNIScanner User Guide compared to the transmitted signal and the difference is reported as the NEXT value in dB. When measuring the NEXT for the OMNIRemote end, the roles of the two units are reversed. OMNIScanner provides the termination; OMNIRemote transmits and measures the signal. In the NEXT screen, the worst case margin for all near and far pair combinations is shown at the top of the screen.
OMNIScanner User Guide The pairs are displayed in the column on the left side, followed by the Attenuation in decibels (dB), the Attenuation margin/limit values, and the frequency. The result for each pair is tagged with a PASS , Marginal PASS , Marginal FAIL , or FAIL indicator. Press (Graph) to display the Attenuation graph for the highlighted pair. The Attenuation is displayed for the frequency indicated by the cursor position. Press other pairs.
OMNIScanner User Guide displayed for the frequency indicated by the cursor position. Press other pairs. (Pairs) to view Return Loss graphs for Press (Diagnostics) to display the TDRL screen, where cabling and/or connection faults can be identified. (See Chapter 6 - Diagnostics: Using TDRL to diagnose a Link for further information.) Press ESC to exit the RETURN LOSS screen.
OMNIScanner User Guide Press (Pairs) to view ELFEXT graphs for other pair combinations. Press ESC to exit the ELFEXT screen. ACR/Bandwidth Attenuation to Crosstalk Ratio (ACR) is an indication of how much larger the received signal is compared to the Near End Crosstalk (NEXT) on the same pair. ACR is calculated from the measured NEXT and Attenuation. The ACR value is computed at each measured Attenuation frequency. The worst case ACR is reported for each pair combination.
OMNIScanner User Guide Resistance Resistance is measured in a loop through each pair in the cable. In a twisted pair cable, Resistance is measured by using OMNIRemote to short the far end of the pair under test. The RESISTANCE screen displays the Resistance Limit and the test results in Ohms for each pair. The or FAIL result for each pair is tagged with a PASS indicator. Press ESC to exit the RESISTANCE screen.
OMNIScanner User Guide Press (Pairs) to view PSNEXT graphs for other pairs. Press ESC to exit the POWER SUM NEXT screen. Power Sum ELFEXT Power Sum ELFEXT is calculated from the summation of the individual ELFEXT effects on each pair by the other three pairs. In the POWER SUM ELFEXT screen, the worst case margin for all near and far pairs is shown at the top of the screen.
OMNIScanner User Guide Power Sum ACR Power Sum ACR is calculated from the Attenuation of the disturbing pair subtracted from the Power Sum NEXT for the pair. The worst case Power Sum ACR is reported for each pair. The POWER SUM ACR screen displays the pairs in the column on the left side, followed by the PSACR in decibels (dB), the margin/limit, and the frequency. The or FAIL result for each pair is tagged with a PASS indicator.
OMNIScanner User Guide Fiber Optic Measurements with OMNIFiber Length/Delay The Length/Delay function measures a fiber’s length and propagation delay. Length measurements are derived from the propagation delay results using the GRI (Graded Refractive Index) at the appropriate wavelength. Propagation Delay is the measure of the time required for a signal to advance from one end of the link to the other.
OMNIScanner User Guide Power Meter The Power Meter function reports the overall received power. Use it to quickly verify and correct cabling and equipment problems. The POWER METER screen shows the currently selected wavelength and light source mode. The overall power is displayed. OMNIFiber main is designed to provide a consistent, calibrated light source for effectively measuring signal loss in fiber optic cables. The transmitted light can be operated continuously or modulated.
OMNIScanner User Guide Coaxial Measurements with OMNIScanner Coax Tests In coaxial cable, an insulated wire runs through the middle of the cable and a second wire, called the shield, surrounds the insulation of the inner wire like a sheath. The outer insulation jacket wraps around the second wire. The Coax Tests screen displays the measured Length, Termination, Impedance, and Resistance. The Length function measures the cable length. OMNIScanner will display the overall length in meters or feet.
OMNIScanner User Guide weaken the signal. A multi-tone trace signal will begin transmitting. To enhance the signal, insert a grounding plug into the ground jack located left of the DB-9 Serial Connector. A grounding plug is included in the optional Cable Tracer II kit; you may use any grounding cable that has a standard insulated phone tip plug. 2. To determine the cable path use the multi-tone sound as a guide and simply trace along the wire where the tone is loudest.
OMNIScanner User Guide 5 - 18
OMNIScanner User Guide Chapter 6 - Diagnostics OMNIScanner’s Diagnostic Functions OMNIScanner has several advanced diagnostic test functions to help you with the identification of network cabling faults. Diagnostics allows you to locate opens, breaks, and short circuits as well as NEXT and Return Loss cabling faults in twisted pair cabling. Further, OMNIScanner allows you to measure Impulse Noise, trace cables, and locate office drops. Press the screen.
OMNIScanner User Guide For each of the 8 conductors and the Shield, Wiremap can indicate proper pin termination on each end, continuity to OMNIRemote, shorts between any two or more conductors, crossed pairs, reversed pairs, split pairs, and any other miswiring. For each pair, Wiremap displays the length. When a pair is faulty the length indicates the distance to the fault from the OMNIScanner end.
OMNIScanner User Guide SPLIT PAIRS: If a cable is wired correctly, pin-to-pin, but there is a split pair, Wiremap displays Split Pairs and highlights the pins in error. In our example, one wire from the 4-5 pair is twisted with one wire in the 7-8 pair. The Split Pair will be highlighted with reversed numbers. The message SPLIT PAIRS will be displayed below the Wiremap. Press ESC to exit the WIREMAP screen. TDNXT NEXT faults are diagnosed by using the TDNXT (Time Domain NEXT) function.
OMNIScanner User Guide Use or to select which end, OMNIScanner or OMNIRemote, you want to view the results for. Press to open the TDNXT screen. The screen displays the TDNXT (Time Domain NEXT) graph. The funnellike lines are the upper and lower S-Bands. S-Bands are limit lines for connections as a function of distance from the cable end. They provide a quantitative measure of the NEXT at the connection point, which is typically located at the end of the test cable at 2 meters (7ft).
OMNIScanner User Guide If failures occur at both ends of the link, use or each end. Failures at both ends of the link can interact. to diagnose TDNXT Examples The following examples show the diagnostics process that is performed to identify failures on typical links with 2 meter test cables. GOOD CABLE, BAD CONNECTION: The cursor in the NEXT graph is located at the worst NEXT at 144.0 MHz, which is outside the limit line. (For display purposes the cursor is moved.) The Link failed.
OMNIScanner User Guide NEXT in the cable is the source of the failure even though the cable’s NEXT response peaks are less than those of the connection. By knowing that the connection meets its performance requirement, the cable is easily identified as the non-compliant component of the link. The following table summarizes the typical diagnosis process. NEXT TDNXT exceeds S-Band limits Conclusion PASS N/A NEXT of link is within limits FAIL YES Connection fails. Replace or reterminate.
OMNIScanner User Guide S-Bands™ provide a time domain limit to verify that the connections are within the desired category of performance. In a typical link, failures are a result of either a non-compliant connection or a faulty cable. The ability to determine if a connection meets the expected performance requirement significantly simplifies the diagnosis of a failure. Select TDRL in the DIAGNOSTICS screen and press ENTER. The TDRL function is also available from the RETURN LOSS Graph screen.
OMNIScanner User Guide Using TDRL to Diagnose a Link S-Bands provide an easy method to pinpoint if the fault is located at the connection or at the cable. The S-Bands allow you to determine if the connections in a link meet the desired performance level. They are designed to match the standard category of the selected Autotest. A graph containing peaks that are located outside the S-Band at the connection distance indicates that the connection and not the installed cable failed.
OMNIScanner User Guide BAD CABLE, GOOD CONNECTION: The cursor in the Return Loss graph is located at the worst Return Loss at 110.4 MHz, which is outside the limit line. The Link failed. Why? to open the TDRL screen to further Press review and diagnose the graph. The Return Loss response from the connector located at 2 m is well within the S-Bands and performs significantly better than the requirements.
OMNIScanner User Guide Impulse Noise Noise is undesirable electrical energy that falls within the typical network frequency bands of operation (generally 1-20 Mhz). It interferes with a network’s ability to transmit data reliably. Noise sources may include AC transmission lines, fluorescent light fixtures, industrial equipment, elevators, etc. Noise problems also occur when other wire pairs in the same sheath are used for non-LAN applications.
OMNIScanner User Guide Cable Trace Tracer/Toner is a cable tracing function that assists in tracking cables hidden in walls, ceilings, floors, or patch panels by generating a signal that can be converted into an audible tone by Microtest’s Cable Tracer II (sold separately) or any other equivalent tracing device. 1. Attach the end of the cable you want to trace to the OMNIScanner using a patch cord and the Microtest Channel Adapter or the Microtest Link Adapter.
OMNIScanner User Guide OMNIScanner will identify office locations and display the ID of the Office Locator adapter found at the far end of the attached cable. If you are testing a cable that does not have an Office Locator attached at the other end, OMNIScanner will display a question mark. Press ESC to exit the OFFICE LOCATOR screen.
OMNIScanner User Guide Chapter 7 - Results Autotest Results To view previously saved Autotests, press the (Results) function key. The RESULTS screen displays Project names together with the number of Autotests that are stored within each project. In the bottom row you will find the total number of Autotests currently stored in OMNIScanner’s memory. Project folders identify internally Light stored results. Black Project folders identify results stored on MMC.
OMNIScanner User Guide another project or to change the Circuit ID. Press ENTER with the Project: highlighted to reveal a list of all projects that are currently stored. Use the éê to highlight the project you want to store the Autotest within, and press ENTER to select it. Use the ê to highlight the Circuit ID: and press ENTER to edit the field. Press ENTER to terminate the edit mode. (Save) to save the changes and return to the PROJECT Press NAME screen.
OMNIScanner User Guide For Twisted Pair Cabling: The Autotest Results screen will be displayed. The name of the Autotest, the cable that was used to run the test, and the overall test result (PASS or FAIL) are shown. All measurements that were performed during the Autotest are listed in the left column. Passed tests are marked with a (PASS) or a (Marginal PASS). If a test result did not pass, the test name will be followed by a (Fail) or a (Marginal FAIL) symbol.
OMNIScanner User Guide indicate the Method used to set the reference. (See Chapter 8 - Fiber Optic Reference for further information.) When dual fiber is measured, arrows ▲▼ at the top of the screen point out the direction of the light. The arrows also indicate the fiber that the (PASS) or (FAIL) result is for. The number of Connectors and Splices is shown at the bottom of the screen if the Autotest loss criteria is formula based. (See Appendix C for further information.
OMNIScanner User Guide Chapter 8 Fiber Optic Reference Methods Establishing the Reference Different methods can be used when making a reference measurement with OMNIFiber. The reference measurement to use depends on how the standard defines the link, and how the network is interconnected. There are three basic link definitions and three corresponding reference methods.
OMNIScanner User Guide The Launch/Jumper Cable The launch/jumper cables are 2 m fiber cables and need to be of good quality and in excellent condition. Always clean and inspect the launch cables before use. 2 m Launch Cable Note: The launch cable used to set the reference value should be the same type of fiber as the cables to be tested and certified, 50/125, 62.5/125 or single-mode. The fiber cables included with your OMNIFiber kit are duplex launch cables.
OMNIScanner User Guide One Jumper Reference Method This method is used when the link includes: • the loss of one connection at the near end cross connect • the loss of one connection at the far end cross connect/outlet • the loss of the cable plant TIA/EIA -568-A, ISO 11801, and IEEE 802.3 (100 Base-X, 1000Base-X) specify the one jumper method. TX RX 850 nm TX RX 850 nm 1300/1310 nm 2 m Launch Cables 1300/1310 nm Note: This method is called ‘Method B’ in TIA-526-14A and ’Method A.
OMNIScanner User Guide Two Jumper Reference Method This method is used when the link includes: • the loss of one connection at the near or far end cross connect • the loss of the cable plant TIA/EIA -455-171and IEEE 10 Base-X specify the two jumper method. Note: This method is called ‘Method A’ in TIA-526-14A and ‘Method A.2’ in TIA-526-7. TX RX RX TX 850 nm 1300/1310 nm 850 nm 2 m Launch Cable 1300/1310 nm 2 m Launch Cable Coupler 1.
OMNIScanner User Guide Three Jumper Reference Method This method is used when the link includes: • the loss of the cable plant Note: This method is called ‘Method C’ in TIA-526-14A and ‘Method A.3’ in TIA-526-7. TX 850 nm RX RX 1300/1310 nm 1300/1310 nm 2 m Launch Cable TX 2 m Launch Cable 850 nm 2 m Launch Cable Couplers 1. Connect the first launch cable to the fiber adapter that is attached to OMNIScanner.
OMNIScanner User Guide Two Jumper Reference Method in Loopback Mode The OMNIFiber Main can be used without the remote to make measurements on a single fiber. In this state the TX fiber is looped back to the RX port of the same OMNIFiber adapter. Note: During the Autotest, the loss and length of the white fiber will be subtracted from the length of the fiber under test. Since the loss in a short jumper cable is negligible, the loss measurement of the fiber under test will be accurate.
OMNIScanner User Guide Chapter 9 - Uploading and Printing ScanlinkTM Tools Scanlink Tools consist of three parts: the Scanlink program, the OMNIScanner Configuration program, and the OMNIScanner Remote Control program. ScanlinkTM is designed to upload data measured with OMNIScanner, PentaScanner, SimpliFiber, or CertiFiber. Collected data can be viewed or saved to disk.
OMNIScanner User Guide 9-2
OMNIScanner User Guide Chapter 10 - Updating Scanner Software Downloading Software from the Microtest WWW site Software updates can be easily downloaded from the Microtest World Wide Web site. If you are connected to the Internet, you can access our web site by entering http://support.microtest.com in the URL address field. 1. Choose Download to open the Microtest Customer Support section. 2. Enter your login name and your password. 3. Choose OMNIScanner from the drop-down list and click Find Files. 4.
OMNIScanner User Guide 2. Plug the AC adapter into OMNIScanner. 3. Connect OMNIScanner and OMNIRemote using the provided test cable and adapter. 4. Plug the AC adapter into OMNIRemote. 5. Turn on OMNIScanner. Test Cable AC Adapter AC Adapter Com 1 or Com 2 DB-9 to DB-25 or DB-9 to DB-9 Serial Cable You are now ready to download the new flash update from the PC. Follow the instructions in the ReadMe that accompanies the update file. 6.
OMNIScanner User Guide Chapter 11 - MultiMediaCard The MultiMediaCard is the world’s smallest solid state storage device. It weighs less than two grams and is the size of a postage stamp (32mm high by 24mm wide and 1.4mm thick). The card is available in 8MB, 16MB, and 32MB capacities. The MMC can store OMNIScanner2 test results that can then be uploaded to Scanlink.
OMNIScanner User Guide MultiMediaCard Maintenance Multi Media Flash memory cards store data just like a PC stores data on the hard disk. Saved files are broken into segments and stored in any free segment of the multi media flash memory card. Prior to the initial use, the MMC may require formatting. Use the OMNIScanner2 Format MMC function to perform this task. To format the MultiMediaCard, select Format MMC in the SETUP screen. A gauge will indicate the progress.
OMNIScanner User Guide Chapter 12 - Universal Serial Bus Port USB allows you to instantly connect OMNIScanner2 to your computer running Windows® 98 (2nd Edition) or Windows® 2000. A standardized plug and port replaces all the different kinds of serial and parallel port connectors and combinations. When using a USB-compliant PC, you just turn on your PC, attach OMNIScanner2 to the USB port, and turn on the scanner. USB makes the connection process automatic and hassle free.
OMNIScanner User Guide 2. Connect the PC with OMNIScanner2 via the high-speed USB cable. 3. Turn OMNIScanner2 on. 4. Insert the Scanlink Tools CD which contains the USB driver software. 5. Follow the instructions on the screen to install the driver. First, the install wizard will find the new device: Microtest OMNIScanner2. Click Next > to continue Then, it will search for a driver for OMNIScanner2. We recommend accepting the default setting: Search for the best driver for your device.
OMNIScanner User Guide a different USB port, a separate installation of the driver from the Scanlink Tools CD is required. Uploading OMNIScanner2 Test Results to the PC 1. To send test results from OMNIScanner2(s) to a PC, first turn your PC on. 2. Connect the PC with OMNIScanner2 via the high-speed USB cable. 3. Turn on OMNIScanner2 4. Run the Scanlink software and click on the toolbar, or select Upload in the File menu. (Upload) button in the 5. In the Scanner Type field, select OMNIScanner. 6.
OMNIScanner User Guide Once the connection is established, the scanner’s serial number is displayed in the lower left display panel. A gauge in the lower right display panel indicates the progress during the upload process. Scanlink will transfer all of the Autotest results from the scanner and display a summary of the tests in the main program window. 10. Click Cancel to abort the upload process.
OMNIScanner User Guide 9. The message ‘Download complete’ will be displayed to inform you when the Configuration is downloaded. Click OK to return to the main screen. The new Configuration is now implemented, and OMNIScanner2 displays the Project screen. (Consult the OMNIScanner Configuration on-line help for further information.) Remote Controlling OMNIScanner2 1. To remote control OMNIScanner2, first turn your PC on. 2. Connect OMNIScanner2 and OMNIRemote via the link to be tested. 3.
OMNIScanner User Guide 12 - 6
OMNIScanner User Guide Appendix A - Technical Specifications Specifications apply to both OMNIScanner and OMNIRemote unless otherwise noted. Physical Characteristics OMNIScanner • Dimensions: 8.75” x 4.50” x 2.12” (22.25 cm x 11.4 cm x 5.4 cm) • Weight: 2.20 lbs (1 kg) OMNIRemote • Dimensions: 8.75” x 4.50” x 2.12” (22.25 cm x 11.4 cm x 5.4 cm) • Weight: 1.96 lbs (0.89 kg) OMNIFiber • Dimensions: 3.54” x 3.88” x 1.55” (9 cm x 9.85 cm x 3.94 cm) • Weight: 0.24 lbs (0.
OMNIScanner User Guide OMNIFiber MM LED Displays • 850 nm Indicator (GREEN) for transmitting at 850 nm • 1300 nm Indicator (GREEN) for transmitting at 1300 nm • 850 nm Indicator (ORANGE) for switching fibers • 1300 nm Indicator (ORANGE) for switching fibers OMNIFiber SM LED Displays • 1310 nm Indicator (GREEN) for transmitting at 1310 nm • 1550 nm Indicator (GREEN) for transmitting at 1550 nm • 1310 nm Indicator (ORANGE) for switching fibers • 1550 nm Indicator (ORANGE) for switching fibers Power • • • •
OMNIScanner User Guide Universal Serial Bus • • Type Link • • Connector Recommended Cable Self Powered Device 12 MB/s Full Speed Bulk Transfer with two 128 byte FIFOs and Automatic Retry Type ‘B’ Receptacle Full Speed Shielded Twisted Pair with A-B Plugs (USB V1.1 Complaint) MultiMediaCard Interface • • Link Format • • Socket Recommended Media 4.
OMNIScanner User Guide • • • • • • • • Attenuation ELFEXT (Equal Level FEXT) ACR (Attenuation to Crosstalk Ratio) Bandwidth Length/Delay Resistance Power Sum NEXT, ACR and ELFEXT Coax Tests: Length, Delay, Impedance, Resistance OMNIFiber Test Functions • • Multimode Fiber: Length, Propagation Delay, Loss Single-mode Fiber: Length, Propagation Delay, Loss Transmission Performance Measurement Method All cabling transmission performance measurements (NEXT, RL, Attenuation, and ELFEXT) are implemented usin
OMNIScanner User Guide NEXT • • • • • • Test all six pair combinations from both directions using OMNIRemote Frequency Range: 1 to 300 MHz Dynamic Range: >100dB Measurement Accuracy: Calculated per TIA error model Accuracy: Significantly exceeds Level III requirements Measurement Resolution: 0.1dB Return Loss • • • • • • Measures Return Loss on all four pairs from both directions using OMNIRemote Frequency Range: 1.
OMNIScanner User Guide Length • • Range: 0 to maximum distance, where max. distance = 457 m (1500 ft.) for twisted pair cable Accuracy: ± K ± Length resolution ± NVP uncertainly, where K = ± 4% of length or 0.6 m (2ft.), whichever is greater. Length resolution: 0.3 m (1ft.) Resistance • Range: 0 - 500 Ω Accuracy: ± 0.5 Ω @ 0 to 15 Ω ± 2% @ 15 to 500 Ω Resolution: 0.
OMNIScanner User Guide High Voltage Input Protection • The test interface withstands input hazard conditions that arise from normal telephone interfaces (48 VDC at less than 80 mA) or 24 VAC power used to power many telephone keysets. The unit detects when a voltage of greater than ±15 volts is applied on the inputs and sounds a warning to alert the user to remove the hazard condition immediately to prevent possible damage to the input circuits.
OMNIScanner User Guide A-8
OMNIScanner User Guide Appendix B - Batteries Battery Packs OMNIScanner and OMNIRemote are powered by rechargeable, recyclable battery packs. Under various state and local laws, it may be illegal to dispose of this battery pack into the municipal waste stream. Check with your local solid waste officials for details in your area for recycling options or proper disposal. To remove the battery pack, place the instrument face down and slide the arrow-shaped tab downward.
OMNIScanner User Guide OMNIScanner and OMNIRemote use a charging mechanism that minimizes the effects of shallow discharging. To maximize battery life, the battery temperature is monitored and maintained within limits during the charging process. Charging under high temperature conditions may result in longer recharge times or premature termination of charging.
OmniScanner User Guide Appendix C - OMNIFiber PASS/FAIL Criteria For the latest cable installation, international standards, and conformance techniques: http://cabletesting.com/Fiber_Standards.html Formula 1: 568A Equation for 850nm fiber: (# of mated connections x 0.75) + (# of splices x 0.3) + (length x 3.75dB/1000m) = OLB* Formula 2: 568A Equation for 1300nm fiber: (# of mated connections x 0.75) + (# of splices x 0.3) + (length x 1.
OmniScanner User Guide C-2
OmniScanner User Guide Appendix D - Cable Pin-Outs Described below are the functions of the electronic signals transmitted through each pin in a connector.
OmniScanner User Guide Cable Pin-Out Signals The signals for the cable pin-outs are as follows: DB-9 Male Pin DB-25 Female Pin DB-9 Female Pin Signal Signal Description 5 3 2 7 8 4 6 1 9 7 2 3 4 5 20 6 8 22 5 3 2 7 8 4 6 1 9 Protective Ground Transmitted Data Received Data Request to Send Clear to Send DataTerm Ready Data Set Ready Received Line Signal Detector Ring Indicator D-2 GND TXD RXD RTS CTS DTR DSR CD RI
OMNIScanner User Guide Index Symbols D 2KHz Modulated Mode 5 - 15 Date format 4 - 15 Decimal Separator 4 - 15 Delay 5 - 5 Delete Test Results 7 - 1 Detail 2 - 9, 6 - 10 Diagnostic Functions 6 - 1 Diagnostics 6 - 1 Downloading Software 10 - 1 Duplex launch cables 8 - 2 A Abort on Fail 4 - 10, 4 - 11 ACR 5 - 10 ACR graph 5 - 10, 5 - 13 Attenuation 5 - 7 Attenuation graph 5 - 8 Attenuation Limit 5 - 8 Attenuation results 5 - 8 Attenuation to Crosstalk Ratio 5 - 10 AutoShutoff 4 - 12, 4 - 14, 4 - 15 Autote
OMNIScanner User Guide H O Hardware 4 - 13 IDC (110) block 2 - 11 Impedance 4 - 6, 5 - 8 Impulse Noise 6 - 10 Incremental Circuit ID 4 - 8 Office Locator 6 - 11 OLB C - 1 OMNIFiber MM 1 - 10 OMNIFiber SM 1 - 10 OMNIRemote 1 - 8 Opens 5 - 5 Optical Link Budget C - 1 Owner Name 4 - 12 J P Jump to Fail 4 - 10 Pairs 5 - 7 PASS 2 - 5 PASS/FAIL 5 - 3 Pop-up 1 - 3 Power Meter 5 - 15 Power Sum ACR 5 - 13 Power Sum ELFEXT 5 - 12 Power Sum NEXT 5 - 11 Predefined Lists 1 - 12 Preparing an Autotest 3 - 1 Produ
OMNIScanner User Guide S V S-Band 6 - 3 S-Band techology 6 - 6 SAVE AUTOTEST 2 - 6 Save Graph Options 4 - 11 Save Graphs 7 - 3 Save Graphs to MMC 7 - 3 Save Graphs) 7 - 3 Scanner Display 1 - 3 Scrollbars 1 - 3 Serial number 1 - 15 Set Reference 3 - 3 Setup 4 - 1 Shield 6 - 2 shield continuity 5 - 5 Shorts 5 - 5 Skew 5 - 6 Skew limit 5 - 6 Software Version 4 - 13 Spin Control 1 - 3, 1 - 12 Split Pair 5 - 5 Standard Connector Band technology 6-3 Swap fibers 3 - 8 View Autotest Detail 4 - 4 View fiber opti
OMNIScanner User Guide Index - 4
License and Warranty Provisions This manual and the product described in it have been protected internationally by copyright and other applicable laws with all rights reserved. You may not remove or conceal any trademark, patent or copyright notice appearing on the product or this manual. Microtest remains the sole owner of the software programs that are part of this product. Microtest grants you a nonexclusive license to use these software programs. This license is for a single user only.
OMNI Scanner, OMNI Remote and OMNIFiber are registered trademarks of Microtest, Inc., PentaScanner is a registered trademark of Microtest, Inc., CertiFiber is a registered trademarrk of Microtest, Inc., Microtest is a registered trademark of Microtest, Inc., ScanLink is a registered trademark of Microtest, Inc., Windows and MS-DOS are trademarks of Microsoft Corporation.
the future of network testing
