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E20/20 Step TDR CATV Operator Training January 24, 2012 Rev B – 11/21/12.

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Presentation on theme: "E20/20 Step TDR CATV Operator Training January 24, 2012 Rev B – 11/21/12."— Presentation transcript:

1 E20/20 Step TDR CATV Operator Training January 24, 2012 Rev B – 11/21/12

2 SubjectSlides E20/20 Step TDR and Accessories 1-7 About the E20/20 TDR 8-9 Batteries & Battery Power 10 How TDR’s work and Cable Construction11-17 Power On/Off, LCD Display & Example Traces Keypad & Menu Keys23-30 Function Keys31-35 Advanced Features36-41 Premise Cable Testing42-49 OSP Cable Testing50-53 ETDR PC Vision54-61 Cleaning E20/20 TDR 62 Warranty, Maintenance & Contact Info 63 Questions & Acknowledgements 64 Table of Contents 2

3 E20/20 TDR with Soft Carrying Case 3 Our Soft Carrying Case is now Standard with all E20/20 TDR Models

4 USB Cable A-to-Mini B Not Pictured: CD-ROM Quick Start Guide Basic Guide Belt Case E20/20 TDR & Included Accessories E20/20F Network TDR AC and DC Power Adapters 4 F-to- Alligator Clips Lead RJ-45 to Telco Clips Lead

5 CD-ROM CD Folders ETDR PC Vision TM MS Windows XP or Win 7software TDR Application Notes Detailed Notes on TDR uses Operation Manual Electronic Copy Only Basic Guide Backup to Printed Copy Quick Start Guide Backup to Printed Copy Training PPTs General/Broadcast Training CATV Technician Telephone Technician Also available at: 5

6 AC or DC Power and Recharging mA Vehicle running is preferred DC power permits operation OR recharging, but not both VAC 50/60 Hz AC power permits operation AND Recharging 6

7 Optional Accessories Test Leads F Test Lead 4ft (1.2m) Quick Connect DC Power Cord Ext. USB Cable Ext. Hard Carrying Case 7

8 Connector combination for Telco model is F and RJ-45 E20/20 Instrument Layout Quarter VGA backlit display High tactile feel & weather resistant keypad with Function Key LEDs Rugged ABS plastic case with prop stand on the back 8

9 E20/20F Network Top End F Connector (field replaceable) USB-2 Mini Port RJ-45 Port DC Input power jack Charging Indicator LED 9

10 Battery Installation CAUTION NO mixing cells Same Type & mAhr BATTERY MENU Select Alkaline or NiMH/NiCd and enter rated mAhrs 10

11 How Does a TDR Work? The same as RADAR Time 11

12 Cable Velocity and Distance Velocity is designed in a cable at the time of its manufacture Velocity is expressed as a fraction of the speed of light Examples:.66c or 66.7c Time 2 X Velocity = Distance 20 n Sec 2 X.66c (648,172,800ft/sec) = 6.48 feet VF or VP Beware of VF Uncertainty VoP or NVP 12

13 Impedance “Z” Z = 75 Ohms Z = 100 Ohms 13

14 Cable Impedance (Z) and Reflections Impedance is a factor of both the conductor and the dielectric of the insulation between the conductor & shield or twisted pairs Any deviation from the manufactured Z will cause reflections Open Zo=75  or 100  Z = ∞ Ω Z = 0  Zo=75  or 100  Short 14

15 Pulse TDR Longer and Longer Dead Zones 15

16 Step TDR = No Dead Zones – Any Range Fault readings in Ohms Step TDR 16

17 Example Step TDR Reflections Poor Splice Mixed ImpedancesBridged Tap WaterSplit Pair That Resplits Pinched Coax Poor Quality Coax What a “Pulse TDR” Cannot See 17

18  ON cycle runs Self Test, Calibration, and Restores last use settings  Input Voltage Detect Warning (>1VAC pk-to-pk or 50VDC)  OFF cycle saves all settings  Battery Saver shuts down saves all settings Powering Up/Down  Input over-voltage protection up to 250 VAC or DC 18

19 Soft Reset & Hard Power Down Perform Soft Reset if: 1. TDR menu cursors are unresponsive 2. Measurement Screen disorganized 3. Other performance issues Perform a Hard Power Down if TDR will not turn off normally Press and hold for 10 seconds Then power on with a Soft Reset 19 Then “Default Settings” will flash in the splash screen and Measurement Screen will open to 0-1KΩ Z Scale Then 1 Sec Press & Hold2 Sec Release

20 Measurement Screen Cable Type, Impedance, & Velocity Impedance Scale Plot Range Cursor Data – Feet, Inches or meters and Impedance 1 of 2 Cursors Blinking Low Battery indicator (~20 minutes power remaining) 20

21 Example E20/20 TDR Traces Series Resistive Fault Cable Short Pinched Coax Wet Cable 21

22 Coax Shield Fault Good Splice Bad Splice Bridged Tap Example E20/20 TDR Traces 22

23 Menu keys By name LED’s indicate active Function keys Cable ID tones for coax & twisted pair Cell style alpha- numeric entry pad Keypad Exits menu and saves changes Enters A/N changes, distance marks, & Soft Reset ON/OFF Cursors, & data selection control 23

24 Used to confirm or accept alpha-numeric entries, highlighted list selections and cursor marked entries for certain features Soft Reset - Press 4-5 times fast after pressing ON key to activate. Return to Measurement Screen from menu or back up one menu level. Saves all menu changes Keypad Controls 24

25 Step-by-step set up guidance How the menus work Cable menu options guide Test Lead Null guide Action keys’ LEDs guide With NO action keys or other menu key selected Help Key 25

26 Context sensitive help works with active Function keys or menu keys and cursor selected features and functions Context Sensitive Help Example 26

27 Off, Low, Med, & High Raise for cold, lower for hot Coax or RJ45 CH A thru D ►Sub menu to change ON or OFF Meter Menu 27 ► to open full menu

28 20, 50, 100, 200, 500, & 1K 10ft – 20Kft (2m – 5Km) Shifts display range by entry. 0 = TDR connector or Test Lead end if Test Lead Null ON ON or OFF (slide 39 for details) ON or OFF OFF, KINKS ONLY or ALL FAULTS (slides 37 & 38 for details) Trace Menu 28

29 Memory Menu 29 Delete Trace – Highlight – CAUTION: NO UNDELETE

30 Cables Menu Compute a cable’s VF by testing a sample of known length – guided process Find a cable’s VF from known points – guided process 30

31 Minimum 10 ft or 2m Maximum 20Kft or 5Km Increase/decrease display range 31

32 Zoom Limits: Minimum 10ft (2m) to Maximum Set Range Zooms on active cursor 32

33 Scales: 20, 50, 100, 200, 500, & 1KΩ On lower Scale settings cable Z 0 will stay centered 33

34 Single active cursor has LED lit Rules when both cursors are on screen: 1. Both LEDs are lit 2. Last cursor key touched is active 3. Last cursor key touched appears on LCD with differential readings to other cursor’s – distance and Ohms 34

35 Tones generated on coax or selected twisted pair Most standard inductive amplifiers (probes) will pick up the tones TDR trace is not available while toning the cable. Battery Saver is suspended INPUT CHANNEL: Press for a menu of Tones 35 Use on Battery power only

36 E20/20 TDR Advanced Features MICRO FAULT – Locate minute defects in coax TEST LEAD NULL – Remove unknown test lead length from measurement VELOCITY SEARCH – Pin-Point an installed cable’s true VF based on cable’s known length or known distance to an event. SAMPLE A CABLE – Find the VF for a cable sample to apply to all the cable in that box, reel or lot number. 36

37 Micro Fault ► MICRO FAULT – KINKS ONLY 37 For small kinks and crushes in coax cables TDR’s normal display will shift to an amplified reflection display with Z 0 as base line. In this example a fault barely seen in the normal impedance display shows up clearly.

38 Micro Fault ► MICRO FAULT – ALL FAULTS 38 Mainly for coax or high quality twisted pairs TDR’s normal display will shift to an amplified reflection Display Z 0 centered, no dribble-up & reduced Z Scale. In this example a fault barely Seen in the normal impedance display shows up clearly.

39 Test Lead Null Use a cursor to mark the End of the test lead and Press to set the length 39

40 Velocity Search When to use – If you have an installed cable with known lengths either to the end or an event on the cable. E20/20 will compute the cable’s VF based on marking the distance with a cursor, then use the to adjust the cable end or event to that distance. Press when end of cable and cursor are aligned to use the modified VF and return to Measurement Screen 40

41 Sample a Cable When to use – If you have a cable sample 10-50ft (3-15m) with an accurately measured length, and plan to install or test cable’s from it’s same reel or box. 41 Mark the end of the sample. Press and enter ft then in. Press TDR computes VF

42 Transition from the Theoretical to the Practical How can a TDR help you get a clear TV picture, a quality phone call or a fast internet connection 42

43 Kitchen Living Room Bedroom 1 Bedroom 2 Bedroom 3 Kitchen Living Room Bedroom 1 Bedroom 2 Bedroom 3 Typical Telco Loop Wiring NID Telco USOC Wiring Scheme for Homes and Small Businesses 1 – T3 not connected 2 – T2 Black 3 – R1 Red 4 – T1 Green Yellow 5 – R2 Yellow 6 – R3 not connected RJ12 Wired USOC 1 – T2 Black 2 – R1 Red 3 – T1 Green Yellow 4 – R2 Yellow RJ11 Wired USOC 43

44 NID Kitchen Living Room Bedroom 1 Bedroom 2 Bedroom 3 Typical Star or Home Run Wiring TIA 568C for Business Wiring or TIA 570B for Residential Wiring 66 Block or 110 Block or Connection Box 1 – T3 White/Green 2 – T3 Green 3 – T2 White/Orange 4 – R1 Blue 5 – T1 White/Blue 6 – R2 Orange 7 – R4 White/Brown 8 – R4 Brown RJ45 Wired T-568A 1 – T3 White/Orange 2 – T3 Orange 3 – T2 White/Green 4 – R1 Blue 5 – T1 White/Blue 6 – R2 Green 7 – R4 White/Brown 8 – R4 Brown RJ45 Wired T-568B 44

45 AEA Technology Reduced All Wiring Schemes to Coax & 4 RJ45 Channels  99.9% of all phone lines will be on TDR’s Channel A or look at any other single pair  ETDR PC Vision can upload, modify, store & download cable lists to the E20/20 TDR  The E20/20 TDR in impedance independent and can test both coax and twisted pair cables with the same TDR  The E20/20 TDR has a customized cable list for Telco techs that covers OSP cable, air or gel filled, drops and premises twisted pairs (IW) for Cat 2 through Cat 6, and coax. 45

46 CRSR1 291ft 10in101.4 to  GENERIC 24AWG VF CRSR1 291ft 10in101.4 to  GENERIC 24AWG VF 66.7 Kitchen Living Room Bedroom 1 Bedroom 2 Bedroom 3 Shorting Plug Three Step Check 1.Unplug all phones 2.Connect the TDR at NID 3.Locate end jack using a shorting plug Open and short at end jack indicates a good pair run. Test can be repeated for all pairs. Results NID 46

47 CRSR1 155ft 3in101.4 to  GENERIC 24AWG VF CRSR1 155ft 3in101.4 to  GENERIC 24AWG VF 66.7 Three Step Check 1.Unplug all phones 2.Connect the TDR at NID 3.Locate last visible jack using a shorting plug Fault is a broken wire after the jack connection in Bedroom 1’s jack Results Kitchen Living Room Bedroom 1 Bedroom 2 Bedroom 3 NID Shorting Plug 47

48 Kitchen Living Room Bedroom 1 Bedroom 2 Bedroom 3 NID CRSR1 174ft 7in101.5 to  GENERIC 24AWG VF 66.7 Three Step Check 1.Unplug all phones 2.Connect the TDR at NID 3.Note short at Bedroom 2 with no shorting plug. Look for bent pins or shorted wires inside the jack Results 48

49 Premises Advantage of a TDR? Quickly locate the distance to a fault and see type of fault Stop rewiring premise twisted pairs when a simple 5 minute fix will clear the trouble 95% of all premise telco wiring problems are in the jacks 1. Customer pulled out jack and broke a wire 2. Customer rewired jack and disrupted service 3. Bent or broken pins 4. Cat marked territory and corroded jack pins 49

50 OSP Testing and Fault Locating  Example Range Resolutions: 10ft=0.5inch, 500ft=2ft, 2000ft=8ft Use “Zoom” to improve horizontal resolution at cursor Use “Z Scale” to increase vertical resolution – Minimum +10 Ohms  Measure Cable’s Impedance (Z) & Resistance (Ω) “Dribble Up”  Use Noise Filter to clear the trace from noise. Yes! Detects Noise  Locates Distance and Impedance effects for: Poor SplicesBad Connections Series ResistanceCable Damage Wet CableLoad Coils Impedance MismatchesLossy Cable  Ranges: 0-10ft to 0-20Kft 50

51 Water in OSP Cabling Water Rules 1.Reduces the resistance of the wire’s insulation - Hence reduces cable’s Z. 2.Reduces velocity to an unknown – Distances in a water slug or after the slug are NOT valid ft 464 ft water 599 ft 311 ft 51 Wet Cable Only trusted distance is TDR to start of water

52 Cross Connects, Pedestals, And Splices 52 Add screen shots

53 Questions on E20/20 TDR? 53 Next subject – ETDR PC Vision

54 ETDR PC Vision TM Software Operates on: Windows XP ®, Windows 7 ® or Vista ® Platforms Upload TDR’s saved or current traces to the PC Archive the traces on the PC or other memory media No platform license – Load on any number of PC’s Upload and Download Cable Lists to the E20/20 TDR Upload and Download instrument setups to the E20/20 TDR 54

55 Getting Started with ETDR PC Vision 1.Locate ETDR PC Vision folder on the enclosed CD-ROM or download it from 2.Turn on the E20/20 TDR and wait for the Measurement Screen (will not communicate if off or in menus). 4. Double-click the icon on the desktop to open application 3. Connect the TDR and PC using the supplied USB Cable 55

56 User Friendly Communications Setup ETDR PC Vision automatically scans for the E20/20 TDR when it opens 56 FTDI Drivers May need to be installed. Drivers are located on enclosed CD and instructions are in the Operator Manual.

57 Get Trace Tab 57 TDR’s current LCD trace Open a previously saved trace on the PC or other storage media. Usable without TDR connected

58 Stored Traces Tab ANTENNA /30/11 11:58 ANTENNA /30/11 12:26 CON /3/12 07:39 CON /3/12 08:38 SENSOR /5/12 09:11 SENSOR /5/12 09:15 FLIR /10/12 10:27 58 Press first to upload a list of stored traces Direct save TDR memory to PC folder Caution – There is NO UNDELETE

59 Graphic Plot Screen 59

60 Setup Tab 60 Press either to obtain valid data (gray text is not valid)

61 Cables Tab Read the Cable List from TDR or from a stored list on the PC Use these keys and “Select Cable Values” to edit the list Write the Cable List to the TDR or to a stored list on the PC 61

62 Cleaning Your 20/20 TDR 1. Always spray cleaners and rinse water on a soft cloth, do NOT spray directly on the TDR Soft Cases The soft case should be cleaned the same as the instrument. Use a soft bush to remove tough dirt. Do NOT immerse in water or dry in a dryer. Wash and Dry separately, both instrument and case should be dry before enclosing the instrument in the case. 2. Typical Grime – Use a mild non-abrasive detergent like 409 ® in water or glass cleaner (non-ammonia) and rinse water to clean 3. Cable Gel – User liquid “citrus” cleaner to remove 4.Tar, creosote or adhesives – Use WD40 ® followed with mild detergent and water 62

63 Maintenance, Service and Warranty Basic Guide or Operator Manual, Maintenance, Service & Warranty. Warranty – One year against material & workmanship defects Questions, By all means – Contact us: AEA Technology, Inc Sea Lion Place, Ste 112 Carlsbad, CA Tel: or Fax: Application Notes Operating Manuals TDR PC Vision Data Sheets See “User Troubleshooting Guide” 63 Quick Start Guide

64 Questions on E20/20 Step TDR ETDR PC Vision software? Windows 7, Vista, and Windows XP are registered trademarks of Microsoft ® Corp. 409 is a registered trademark of Clorox ® Corp. WD-40 is a registered trademark of WD-40 ® company 64


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