e20/20 step tdr catv operator training january 24, 2012 rev b – 11/21/12
TRANSCRIPT
E20/20 Step TDR
CATVOperator Training
January 24, 2012
Rev B – 11/21/12
Subject SlidesE20/20 Step TDR and Accessories 1-7About the E20/20 TDR 8-9Batteries & Battery Power 10How TDR’s work and Cable Construction 11-17Power On/Off, LCD Display & Example Traces 18-22Keypad & Menu Keys 23-30Function Keys 31-35Advanced Features 36-41Premise Cable Testing 42-49OSP Cable Testing 50-53ETDR PC Vision 54-61Cleaning E20/20 TDR 62Warranty, Maintenance & Contact Info 63Questions & Acknowledgements 64
Table of Contents
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E20/20 TDR with Soft Carrying Case
3
Our Soft CarryingCase is now Standard with allE20/20 TDRModels
USB CableA-to-Mini B
Not Pictured:CD-ROMQuick Start GuideBasic Guide
Belt Case
E20/20 TDR & Included Accessories
E20/20F Network TDR
AC and DC PowerAdapters
4
F-to-AlligatorClips Lead
RJ-45 to TelcoClips Lead
CD-ROMCD FoldersETDR PC VisionTM - - - - - - - - MS Windows XP or Win 7software TDR Application Notes - - - - - - 20+ Detailed Notes on TDR uses
Operation Manual - - - - - - - - - Electronic Copy OnlyBasic Guide - - - - - - - - - - - - - Backup to Printed CopyQuick Start Guide - - - - - - - - - Backup to Printed Copy Training PPTs - - - - - - - - - - - - General/Broadcast Training CATV Technician
Telephone TechnicianAlso available at:www.aeatechnology.com
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AC or DC Power and Recharging
12.5 VDC @ 500 mAVehicle running is preferredDC power permits operationOR recharging, but not both
100-240 VAC 50/60 HzAC power permits operation AND Recharging
6
Optional Accessories
Test Leads
F Test Lead4ft (1.2m) Quick Connect
DC Power Cord Ext.USB Cable Ext.
Hard Carrying Case
7
Connector combination for Telcomodel is F and RJ-45
E20/20 Instrument Layout
Quarter VGA backlit display
High tactile feel & weather resistantkeypad with Function Key LEDs
Rugged ABS plastic case withprop stand on the back
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E20/20F Network Top End
F Connector(field
replaceable)
USB-2 Mini Port
RJ-45 Port
DC Input power jack
ChargingIndicator LED
9
Battery Installation
CAUTIONNO mixing cells
Same Type & mAhr
BATTERY MENU
Select Alkaline or NiMH/NiCd andenter rated mAhrs
10
Meter
How Does a TDR Work?The same as RADAR
Time
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Cable Velocity and DistanceVelocity 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
VPBeware of VF Uncertainty
VoP or
NVP
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Impedance “Z”
Z = 75 OhmsZ = 100 Ohms
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Cable Impedance (Z) and ReflectionsImpedance 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
OpenZo=75 or 100
Z = ∞Ω Open
Z = 0
Zo=75 or 100Short
Short
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Pulse TDR
Pulse TDR
Longer and Longer Dead Zones
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Step TDR = No Dead Zones – Any Range Fault readings in Ohms
Step TDR
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Example Step TDR Reflections
Good Splice
Poor Splice
Mixed Impedances Bridged Tap
Water Split Pair ThatResplits
Pinched Coax
Poor QualityCoax
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910
13
What a “Pulse TDR” Cannot See
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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
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 secondsThen power on with a Soft Reset
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ENTER Then
“Default Settings” will flashin the splash screen andMeasurement Screen willopen to 0-1KΩ Z Scale
ENTERThen
1 SecPress & Hold 2 Sec Release
Measurement ScreenCable Type,Impedance, &Velocity
ImpedanceScale
Plot Range
Cursor Data – Feet, Inches or meters and Impedance
1 of 2 Cursors
Blinking LowBattery indicator(~20 minutes power remaining)
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Example E20/20 TDR TracesSeries Resistive Fault Cable Short
Pinched Coax Wet Cable
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Coax Shield Fault
Good Splice Bad Splice
Bridged Tap
Example E20/20 TDR Traces
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Menu keysBy name
LED’s indicateactive Function keys Cable ID tones
for coax &twisted pair
Cell style alpha-numeric entrypad
Keypad
Exits menu andsaves changes
Enters A/N changes,distance marks, &Soft Reset
ON/OFF
Cursors, & dataselectioncontrol
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ENTER
Used to confirm or accept alpha-numeric entries, highlightedlist selections and cursor marked entries for certain features
Soft Reset - Press 4-5 times fast after pressing ON key to activate.
EscReturn to Measurement Screen from menu or back up one menu level. Saves all menu changes
Keypad Controls
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HELP OVERVIEW
SETUP WIZARDMENU OPERATIONTHE CABLETHE TEST LEADSKEY FUNCTIONS
‘ ‘,’ ‘: SELECT A TOPIC ‘ENTER’:VIEW TOPIC HELP
Help
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
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Context sensitive help workswith active Function keysor menu keys and cursor selected features and functions
Help
Context Sensitive Help Example
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RANGE CONTROL : INCREASE RANGE : DECREASE RANGE
ADJUSTS THE TOTAL DISTANCEDISPLAYED ON THE TRACE
Range
METER SETTINGS
BACKLIGHT : HIGHCONTRAST : 9INPUT CHANNEL : COAX INPUTKEYPAD BEEP : ONBATTERY MENU : ABOUT 5.5HRSDATE/TIME :
22 DEC 2011 12:10PM
Meter
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
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to open full menu
TRACE OPTIONS
Z SCALE (OHMS) : 200TRACE RANGE : 50START DISTANCE : 0MICRO FAULT : OFFTEST LEAD NULL : OFFNOISE FILTER : OFF
Trace
20, 50, 100, 200, 500, & 1K
10ft – 20Kft (2m – 5Km)
Shifts display range by entry. 0 = TDR connector or Test Leadend 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
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Memory MenuMemory
MEMORY OPERATIONS
SAVERECALLPRIOR SETTINGS
ENTER MEMORY NAME‘0’ TO ‘9’: DIGIT OR CHARACTER : MOVE EDIT CURSOR : ERASE/START OVER‘ENTER’ : ACCEPT AND CONTINUE
**ENTER NAME* *
1 2 3
4 5 6
7 8 9
Bcksp 0
. , A B C D E F
G H I J K L M N O
PQRS T U V WXYZ
% & =
MEMORY RECALL OPERATION
* * * START OF LIST* * *LMR-400 ANT-2 Z50 VF 85.0RG-58 XMIT-6 Z50 VF 83.5RG-58 XMIT-8 Z50 VF 83.5CAT5 CONTL LINE Z100 VF 72.3LMR-400 ANT-1 Z50 VF 85.0* EMPTY SLOT*SAVED 30 AUG 2011 10:31AMENTER:SELECT SLOT, ESC:QUIT
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Delete Trace – Highlight –CAUTION: NO UNDELETE
Bcksp
Cables Menu
CABLE SELECTION
PICK/EDIT LISTMANUAL ENTRYVELOCITY SRCH.SAMPLE A CABLEDISTANCE UNITS: FEET
SELECTED CABLE:COMSCOPE .625 ZO 75 VF 87.0
Cables
Compute a cable’s VFby testing a sample ofknown length – guidedprocess
ENTER THE CABLE MANUALLY
DESCRIPTION : SAMPLEDCABLE Z0 : 50VELOCITY FACT. : 67.6
Find a cable’s VF from knownpoints – guided process
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CABLES LIST***START OF LIST***GENERIC RG8/U Z0 52 VF 66.0TIMES RG6/U Z0 75 VF 66.0IW-CAT 3 24AWG Z0 100 VF 67.0IW-CAT 5 24AWG Z0 100 VF 70.0IW-CAT 5E 24AWG Z0 100 VF 72.0
‘ENTER’:SELECT THIS CABLE‘BCKSP’: EDIT CABLE ‘ESC’: QUIT
Range
Minimum 10 ft or 2m
Maximum 20Kft or 5Km
Increase/decrease display range
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Zoom
Zoom Limits: Minimum 10ft (2m) to Maximum Set Range
Zooms on active cursor
32
Z Scale
Scales: 20, 50, 100, 200, 500, & 1KΩ
On lower Scale settings cable Z0 will stay centered
33
Single active cursor has LED litRules when both cursors are on screen:1. Both LEDs are lit2. Last cursor key touched is active3. Last cursor key touched appears on
LCD with differential readings to othercursor’s – distance and Ohms
Crsr 1 Crsr 2Crsr 2
34
Tone
Tones generated on coax orselected twisted pair
Most standard inductiveamplifiers (probes) will pickup the tones
TDR trace is not availablewhile toning the cable.Battery Saver is suspended
Meter INPUT CHANNEL:
TONE GENERATOR‘ ‘,’ ‘: SELECT A DIFFERENT TONE‘BCKSP’: VIEW THE LIST OF TONES‘TONE’: EXIT TO TDR MODE
INJECTING A WARBLE TONE ONTO:RJ45 CH A
WARBLEPRESENT VALUE: 900/1100HZ Press for a menu of
Tones
Bcksp
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TONE GENERATOR LIST900/1100 HZ WARBLE977.5 HZ STEADY977.5 HZ PULSED850 HZ STEADY850 HZ PULSED577 HZ STEADY577 HZ PULSED
Use onBattery poweronly
E20/20 TDR Advanced Features
TraceMICRO FAULT – Locate minute defects in coaxTEST LEAD NULL – Remove unknown test lead length from measurement
CablesVELOCITY 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
Micro Fault
Trace MICRO FAULT – KINKS ONLY
37
For small kinks and crushesin coax cablesTDR’s normal display will
shift to an amplified reflectiondisplay with Z0 as base line . In this example a fault barelyseen in the normal impedance display shows up clearly.
Micro FaultTrace MICRO FAULT – ALL FAULTS
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Mainly for coax or highquality twisted pairsTDR’s normal display will
shift to an amplified reflectionDisplay Z0 centered, no dribble-up & reduced Z Scale. In this example a fault barelySeen in the normal impedance display shows up clearly.
Test Lead Null
Trace
TRACE OPTIONS
Z SCALE (OHMS) : 200TRACE RANGE : 50START DISTANCE : 0MICRO FAULT : OFFTEST LEAD NULL : OFFNOISE FILTER : OFF‘ ‘=OFF, ‘ ‘=ON,”ENTER”=SET NULL
Use a cursor to mark theEnd of the test lead and Press to set the length
ENTER
39
Velocity SearchWhen to use – If you have an installed cable with known lengths either to the end or an event on the cable. E20/20 willcompute the cable’s VF based on marking the distance with acursor, then use the to adjust the cable end or event tothat distance.
Press when end ofcable and cursor are alignedto use the modified VF andreturn to Measurement Screen
ENTER
40
Sample a CableWhen 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.
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Mark the end of the sample.Press and enter ft then in.Press TDR computes VFENTER
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
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Kitchen
Living RoomBedroom 1
Bedroom 2
Bedroom 3Kitchen
Living RoomBedroom 1
Bedroom 2
Bedroom 3
Typical Telco Loop Wiring NID
Telco USOC Wiring Scheme for Homesand Small Businesses
1 – T3 not connected2 – T2 Black3 – R1 Red4 – T1 Green5 – R2 YellowYellow6 – R3 not connected
RJ12 WiredUSOC
1 – T2 Black2 – R1 Red3 – T1 Green4 – R2 YellowYellow
RJ11 WiredUSOC
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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 or110 Block orConnectionBox
1 – T3 White/Green2 – T3 Green3 – T2 White/Orange4 – R1 Blue5 – T1 White/Blue6 – R2 Orange7 – R4 White/Brown8 – R4 Brown
RJ45 WiredT-568A
1 – T3 White/Orange2 – T3 Orange3 – T2 White/Green4 – R1 Blue5 – T1 White/Blue6 – R2 Green7 – R4 White/Brown8 – R4 Brown
RJ45 WiredT-568B
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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.
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0 160 320
200
150
100
50
0
CRSR1 291ft 10in 101.4 to 101.6
GENERIC 24AWG VF 66.7
0 160 320
200
150
100
50
0
CRSR1 291ft 10in 101.4 to 101.6
GENERIC 24AWG VF 66.7
Kitchen
Living RoomBedroom 1
Bedroom 2
Bedroom 3
Shorting Plug
Three Step Check1. Unplug all
phones2. Connect the
TDR at NID3. Locate end
jack using ashorting plug
Open and shortat end jack indicates a good pair run. Test canbe repeated for all pairs.
Results NID
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0 160 320
200
150
100
50
0
CRSR1 155ft 3in 101.4 to 101.6
GENERIC 24AWG VF 66.7
0 160 320
200
150
100
50
0
CRSR1 155ft 3in 101.4 to 101.6
GENERIC 24AWG VF 66.7
Three Step Check1. Unplug all
phones2. Connect the
TDR at NID3. Locate last
visible jack using a shorting
plugFault is a brokenwire after the jackconnection inBedroom 1’s jack
Results
Kitchen
Living RoomBedroom 1
Bedroom 2
Bedroom 3
NID
Shorting Plug
Shorting Plug
Shorting Plug
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Kitchen
Living RoomBedroom 1
Bedroom 2
Bedroom 3
NID
0 160 320
200
150
100
50
0
CRSR1 174ft 7in 101.5 to 101.8
GENERIC 24AWG VF 66.7
Three Step Check1. Unplug all
phones2. Connect the
TDR at NID3. Note short at
Bedroom 2with no shortingplug.
Look for bent pinsor shorted wiresinside the jack
Results
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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 minutefix 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
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OSP Testing and Fault Locating
Example Range Resolutions: 10ft=0.5inch, 500ft=2ft, 2000ft=8ftUse “Zoom” to improve horizontal resolution at cursorUse “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 Splices Bad ConnectionsSeries Resistance Cable DamageWet Cable Load CoilsImpedance Mismatches Lossy Cable
Ranges: 0-10ft to 0-20Kft
50
Water in OSP CablingWater Rules1. Reduces the resistance ofthe wire’s insulation -Hence reduces cable’s Z.2. Reduces velocity to anunknown – Distances in awater slug or after the slug areNOT valid.
1374 ft
464 ft water599 ft 311 ft
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Wet Cable
Only trusted distanceis TDR to start of water
Cross Connects, Pedestals,And Splices
52
Add screen shots
Questions on E20/20 TDR?
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Next subject – ETDR PC Vision
ETDR PC VisionTM SoftwareOperates 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
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Getting Started with ETDR PC Vision1. Locate ETDR PC Vision folder on the enclosed CD-ROM
or download it from www.aeatechnology.com
2. Turn on the E20/20 TDR and wait for the MeasurementScreen (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
User Friendly Communications SetupETDR PC Vision automatically scans for the E20/20 TDR when it opens
56
FTDI DriversMay need to beinstalled. Driversare located on enclosed CDand instructionsare in the Operator Manual.
Get Trace Tab
57
TDR’s currentLCD trace
Open a previouslysaved trace onthe PC or otherstorage media.Usable withoutTDR connected
Stored Traces Tab
ANTENNA 2 50 78.6 12/30/11 11:58ANTENNA 5 50 78.6 12/30/11 12:26CON. 401 100 67.7 1/3/12 07:39CON. 331 100 67.7 1/3/12 08:38SENSOR 6-1 100 72.3 1/5/12 09:11SENSOR 6-2 100 72.3 1/5/12 09:15FLIR 1 75 74.8 1/10/12 10:27
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Press first toupload a listof stored traces
Direct save TDRmemory to PCfolderCaution – There is NO UNDELETE
Graphic Plot Screen
59
Setup Tab
60
Press eitherto obtainvalid data(gray text is not valid)
Cables TabRead the CableList from TDRor from a stored list on thePC
Use these keys and “Select Cable Values” to edit the list
Write the CableList to the TDRor to a stored liston the PC
61
Cleaning Your 20/20 TDR1. Always spray cleaners and rinse water on a soft cloth, do NOT
spray directly on the TDR
Soft CasesThe soft case should be cleaned the same as the instrument. Usea soft bush to remove tough dirt. Do NOT immerse in water or dryin 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 milddetergent and water
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Maintenance, Service and WarrantyBasic Guide or Operator Manual, Maintenance, Service & Warranty.
Warranty – One year against material & workmanship defects
Questions, By all means – Contact us:
AEA Technology, Inc.5933 Sea Lion Place, Ste 112Carlsbad, CA 92010Tel: 800-258-7805 or +1-760-931-8979Fax: +1-760-931-8969
www.aeatechnology.comEmail
Application Notes
Operating Manuals
TDR PC VisionData Sheets
See “User Troubleshooting Guide”
63
Quick Start Guide
Questionson
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
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