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MANUAL TEST FUNCTIONS

57

In the next example below, there is an electret microphone that is placed on an unbalanced
pair combination of 1:3. You can see a strong 2

nd

harmonic response on many pair

combinations that contain 1 or 3, and also some response on the unbalanced 2:6 pair whose
conductors are balanced with 1 and 3. This is an excellent example of inductive coupling that
can occur in a telephone line.

By further reducing the transmit power, it is easy to see that the pair that is tapped is 1:3.

From studying these types of responses it is easy to quickly identify different types of taps.

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Содержание TALAN 3.0

Страница 1: ...Line Analyzer User Manual Research Electronics International LLC 455 Security Drive Cookeville TN 38506 U S A 800 824 3190 US Only 1 931 537 6032 www reiusa net Copyright Research Electronics Internat...

Страница 2: ......

Страница 3: ...irectional Antenna 1 5 8 GHz 11 SMA SMB DA 8000 Connector Cable 12 SMB SMB DA 8000 Connector Cable 13 Lithium Ion rechargeable battery 14 8 and 6 conductor phone cables 15 End of Line Box 16 Test Lead...

Страница 4: ...ze the appropriate equipment REI offers the world s largest commercially available Technical Security training facility Training courses include classroom instruction and hands on exercises where stud...

Страница 5: ...fication purposes and are trademarks or registered trademarks of their respective holders NOTE The overall effectiveness of any technical surveillance countermeasure is directly dependent on the level...

Страница 6: ...e Data Functions 27 MANUAL TEST FUNCTIONS 29 Save Recall for Manual Test Functions 30 Save Recall Data Example 31 Save Data to a Target Example 34 DMM Digital Multimeter 36 DMM Advanced Shield and Ear...

Страница 7: ...thumb drive Plug the thumb drive with FIX update file into the TALAN Press the F6 System button and choose Update from the pop up menu Highlight the FIX file and press the OK button The TALAN will no...

Страница 8: ...select Touch Screen from the menu Follow the on screen instructions Calibration should only be required after a complete software update is performed Common Functions In using the TALAN you will disc...

Страница 9: ...the testing process You can always return to this high level summary dashboard by pressing the F4 Summary button It may be necessary to press F4 multiple times depending on the currently displayed da...

Страница 10: ...dashboard screens are below Audio Line Bias and Connection These are accessed by pressing A Audio B Bias or C Connection buttons Since these dashboards are accessed often they were assigned special h...

Страница 11: ...ny type of miscellaneous testing Warning The TALAN circuitry is designed for testing sensitive phone networks and equipment The banana plugs should NOT be connected to high current or high voltage tes...

Страница 12: ...pair combinations as described later in this manual For most test functions press the F4 Options button and select All Pairs Balanced Pairs or Single Pair Note the Continuous function allows for repe...

Страница 13: ...ecognized and accessed A USB keyboard may be connected to the TALAN to facilitate alphanumeric entry for various input fields USB storage devices must be formatted with a FAT file system such as FAT32...

Страница 14: ...ou can also select the storage medium either USB for the thumb drive or CF for the Compact Flash card You can also use this screen to cut and paste a complete Job Database from one storage medium to a...

Страница 15: ...be used to identify a specific target phone set network access point etc to analyze within a location Available Wires define how many wires are used in the phone cord A maximum of 8 conductors may be...

Страница 16: ...ginning testing it is important to define the test sequence The test sequence name is used by the database to identify the series of tests that are performed on a target For a single target on a job y...

Страница 17: ...one line you should first verify that there is no audio passing down the line Therefore regardless of where you test the line you should first use the banana plugs connect to the main audio pair and t...

Страница 18: ...and so on Cat5 Cables Unlike the reversed modular flat cables found in most voice systems Cat5 twisted pair cables which are used in VoIP phone systems and some digital phone systems are wired in a st...

Страница 19: ...ters such as voltage and compare with On Hook Case Test for RF Carrier Current signals Tests DMM Audio analysis Broadband RF and Activity level 3 Phone Disconnected Stage Phone disconnected from line...

Страница 20: ...tch cable should be used between the TALAN and the wall jack b If the Telephone cable is a Twisted Pair cable a Twisted Pair patch cable typically CAT5 should be used between the TALAN and the wall ja...

Страница 21: ...uird On Hook Disconnect Phone Open End Test Terminated End Single End Test Double End Test Audio Test RF Test Non Alert Test Recommended Test Sequence Recommended Test Sequence Job Definition VDC VAC...

Страница 22: ...to any specific tests and completely control the parameters and conditions of the tests Manual Mode is most useful for testing for specific items of interest while the Automated Sequencing is recommen...

Страница 23: ...sired tests under the Stage submenu It is highly recommended that the test stages and test functions be performed in the order that they are presented Within the test Sequence different stages will be...

Страница 24: ...t the appropriate set of tests for VDC Volts DC VAC Volts AC RES Resistance CAP Capacitance IDC current DC and IAC current AC Below is an example of the Stage 1 On Hook DMM tests where the TEST TYPE w...

Страница 25: ...en this test will be performed IDC and IAC TEST TYPEs options are None This test type will not be performed on any wires All Wires For all wires identified as available for this location this test wil...

Страница 26: ...uggested Defaults cannot be changed Test Type Configuration Tips It is not advisable to perform a Resistance test on pairs that have not been checked for VDC because the TALAN applies DC Voltage to pe...

Страница 27: ...has been measured but not saved the surrounding field will be indicated in red on the summary dashboard to the right To save this data select Save as to store this data into the database structure Whe...

Страница 28: ...t they appear on the screen For example after the DMM test sequence is completed it is recommended to continue the sequence with other available tests within this Stage It is recommended that each Sta...

Страница 29: ...l test functions are CLASSIFY PAIRS DMM AUDIO RF LEVEL RF SPECTRUM RF ANTENNA LEVEL NLJD FDR VOIP ANALYSIS VOIP PLUS and LINE TRACER The manual test controls for each function are very similar For eac...

Страница 30: ...arget within an open Job using the Save Data to a Target item under the F3 Manual button This data can be transferred to a PC via USB or a Compact Flash card and viewed in the Sequence Data section of...

Страница 31: ...that are taken with the TALAN i e DMM FDR NLJD Audio level RF Spectrum trace etc that are stored using the Store Data method can be stored and associated with a Job in a Job Name Database This data c...

Страница 32: ...e careful to document your filename and data set name to keep track of the data that was stored To retrieve data from the manual database select F3 Manual then select Recall Data This is beneficial wh...

Страница 33: ...MANUAL TEST FUNCTIONS 33 Select the name of the data set you want to recall and select OK...

Страница 34: ...ting with the main top level location through the various sub locations ending up at a given target To save data so that it will be associated with a Target that specific target and its respective Job...

Страница 35: ...est correct it if necessary and select OK Verify the Data to save and Save Method normally just use the defaults and select OK The saved data can now be recalled on the PC using TALAN Data Viewer sele...

Страница 36: ...powered These conditions are as follows Resistance Only measured if there is no voltage on the line Capacitance Only measured if there is no voltage on the line and the resistance is very high indicat...

Страница 37: ...rs should have the same capacitance values 2 97nF in this example as indicated for pairs 1 2 3 6 and 7 8 The capacitance value of 4 5 is not measured because the pair is active with voltage on the lin...

Страница 38: ...s the Shield Earth button that resides just to the right of the START button This will bring up the following display The Shield and EarthGround testing interfaces are shown The normal Test Options se...

Страница 39: ...selections when the Wire To Test is set to Selected Wire The following figure shows a test of resistance with 265K resistance between Wire 4 of a CAT6 cable plugged into the Phone jack and the Shield...

Страница 40: ...e Summary dashboard to bring up the Connection dashboard Press the C button on the keypad to bring up the Connection dashboard In most cases the center pair should be selected Pair 4 5 When you have m...

Страница 41: ...ress the Digital button on the Audio dashboard to open the Digital Audio dashboard and then select Install to load the proper Digital system You must select Upload to program the TALAN for this system...

Страница 42: ...o coming from the switch To listen to normal analog audio Digital Decode should be unselected The Codec indicates the type of modulation that is used law is used primarily in North America and Japan w...

Страница 43: ...Circuit and the audio board will basically turn off Also care should be taken to avoid feedback with the phone system It is recommended that headphones be used with the TALAN to avoid feedback and to...

Страница 44: ...sults in some audio because the system is capable of demodulating the audio even if only of the signal is present It is also interesting to note that the audio levels are basically the same for the co...

Страница 45: ...as a tap or for some other other illicit purpose To perform this testing from the Manual Audio test page press the Shield Earth button that resides just to the right of the START button This will bri...

Страница 46: ...n of Test Analog Audio Test Digital Audio Read DC etc The right dashboard Connections display can be used to control the selections when the Wire To Test is set to Selected Wire The following figure s...

Страница 47: ...classification test 1 Ensure that the phone is disconnected and that the TALAN is only connected to the line that goes to the switch 2 Press the START button This test is a line impedance test that m...

Страница 48: ...nteresting results For example a 4 conductor flat cable will have strong coupling between all the pairs that are adjacent to each other in the cable For example 1 2 2 3 3 4 will all have strong respon...

Страница 49: ...range to any point simply tap on the screen and a blue vertical line will indicate the range Furthermore multiple FDR traces can be plotted on the same graph In the example shown below all pair combin...

Страница 50: ...el Analysis Select the RF Level test to access the screen below In this screen all pairs were tested for general broadband RF energy As you can see from the screen in this example all pair combination...

Страница 51: ...with a stylus and then using the and to zoom in or out Sweep and Analyze Screens The RF Spectrum Analyzer screen is divided into two sections Sweep and Analyze The Sweep screen is the wider top window...

Страница 52: ...he frequency Displaying Multiple Traces for Comparison You can have the unit display multiple RF traces simultaneously For example it may be useful to capture an RF trace of the main 4 5 pair as well...

Страница 53: ...to observe changes over time as the product is used as a broadband RF detector It is important to note that the frequency ranges of the supplied antennas are Whip Antenna 10 MHz to 2 GHz High Frequenc...

Страница 54: ...tap It is highly recommended that you only use the NLJD function on a dry line meaning the phone should be disconnected and the line should be disconnected from the switch Ideally there should be no...

Страница 55: ...diodes to limit the input to the amplifier circuit These 2 diodes in parallel create an NLJD response that results in a strong 3rd harmonic response The next two examples will show responses to this...

Страница 56: ...ower was reduced to less than 10 and hence the parallel tap is clearly being displayed only on pair 4 5 In the next example there is a serial tap only on conductor number 8 Therefore only combinations...

Страница 57: ...mbinations that contain 1 or 3 and also some response on the unbalanced 2 6 pair whose conductors are balanced with 1 and 3 This is an excellent example of inductive coupling that can occur in a telep...

Страница 58: ...NOT include the phone traffic In these scenarios no network port or switched port that does not include phone traffic the VoIP Test Adapter must be used in line with the phone network line see diagra...

Страница 59: ...ecific phone line provides the capability to test the phone at any time without having to disrupt the line Additional VoIP Test Adapters can be purchased from REI The VoIP Test Adapter black box is us...

Страница 60: ...hone is not using PoE but has an external power supply and it is in the processing of sending audio meaning a connection is made and someone is listening from another phone then it is possible with pr...

Страница 61: ...so that it does not annunciate itself with the network server meaning that the TALAN will not be detected by anything used to monitor network access including network monitoring packages such as wires...

Страница 62: ...and more reliable To activate the VoIP Plus feature select VoIP Plus from the F3 Manual menu If the TALAN 3 0 Hardware is not installed you will see the following screen Selecting Continue permits th...

Страница 63: ...e VoIP Test Adapter The type of data to show in the list is set to NetworkStreams This is the default The list of packets collected can be viewed by selecting the PacketList above NetworkStreams Howev...

Страница 64: ...ph Below are two screens showing PacketHits of the same 50Hz data stream shown at the maximum 10s time frame and also the Payload showing the default 2s time frame Look at the original VoIP Plus Contr...

Страница 65: ...y to stop and save the captured files select Stop Capturing then Save To File If a USB memory stick is installed it will be saved to the USB and the file name will be shown If the USB memory stick is...

Страница 66: ...lculated frequency of this specific streams packet arrivals in Hz in parenthesis For this next screen Listen was also selected showing an audio graph in the upper right window of the decoded audio fro...

Страница 67: ...networks that still have Novell SNAP and or 802 3Raw All three of these should not be present on modern networks Yet they can exist and modern Network Analyzers might not see them because newer networ...

Страница 68: ...n a mirrored port Remember a mirrored port on one device will show both inbound and outbound traffic Meaning it will include both the Tx audio and the Rx audio The screen shot on the left shows the tw...

Страница 69: ...are To activate the VoIP packet analyzer select VoIP Analysis from the F3 Manual menu and then press START The TALAN VoIP Analyzer interface below will appear Once the TALAN is correctly attached to t...

Страница 70: ...llection File Close Close Analyzer program Close icon x Close Analyzer program Features of the TALAN VoIP Analyzer include displaying the source destination MAC addresses type of packet ARP TCP UDP an...

Страница 71: ...at is not connected to a switch By placing voltage on a line you may power an electret microphone or provide power to a tap to increase the probability of detection To activate line bias function pres...

Страница 72: ...ed from either the dropdown list or from the Compare button on the Test Options dashboard During any test mode the results are saved in the A or Live position They can then be compared to a previous t...

Страница 73: ...econd image shows a known good FDR test on a similar line in the Ref position Finally we see the comparison of the two tests on the same screen which shows a fault on the Live line at approximately 96...

Страница 74: ...solated dry line without the phone or the switch connected to the line 2 Then select Line tracing from the Manual menu and adjust the transmit power level using the stylus 3 Using the Connections dash...

Страница 75: ...main TALAN unit Warning The tracing function should only be performed on a completely isolated line It is possible that the transmit power could possibly damage the switch Secondly the switch will be...

Страница 76: ...e that the Locator Probe never comes in contact with high voltage wiring HLP Locator Probe Display Figure 1 Front Panel Indicators Please refer to Figure 1 for the following function descriptions NOTE...

Страница 77: ...power is applied In this mode the receiver will oscillate between TRACING and DEVICE DETECTION Each column will change accordingly to the RSSI for that frequency In this example both the fundamental...

Страница 78: ...direction of the traced wire and within close proximity See Figure 5 Typically you will hear the tone before you will see a visual indication of close proximity to the wire being traced Figure 5 Traci...

Страница 79: ...nit will return to normal operation automatically after a preset timeout occurs Figure 7 Volume Control Display 2 Mode If the user presses the MODE button one of these modes can be selected Figure 8 C...

Страница 80: ...or and is used to establish the proper operation of the RSSI display During this process the user will notice the bottom green and red LED oscillating back and forth Low Battery Condition If the 9V ba...

Страница 81: ...HARMONIC LOCATOR PROBE LINE TRACING AND TAP DETECTION 81 HLP Headphone Jack The headphone jack on the left side of the unit see Figure 13 uses a standard mono 3 5mm plug Figure 13 Headphone Jack...

Страница 82: ...Broadband Detector RF SMB Input 100 kHz to 8 GHz Line Level Test 100 kHz to 600 MHz Sensitivity 65 dBm DIGITAL MULTIMETER Quick Response Auto Ranging 500msec Sample Rate AC DC Volts 0 to 250V Maximum...

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