E2020 TDR Telco Training from AEA Technology, Inc. For further assistance, visit our dedicated help desk at http://help.aeatech.com or send an email to techsupport@aeatechnology.com. You can also visit us online at http://aeatechnology.com.

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

2. Subject Slides
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 Construction 11-17
Power On/Off, LCD Display & Example Traces 18-22
Keypad & Menu Keys 23-30
Function Keys 31-35
Advanced Features 36-41
Premise Cable Testing 42-49
OSP Cable Testing 50-53
ETDR PC Vision 54-61
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 VisionTM
- - - - - - - - MS Windows XP or Win 7software
TDR Application Notes - - - - - - 20+ 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:
www.aeatechnology.com
5

6. AC or DC Power and Recharging
12.5 VDC @ 500 mA
Vehicle running is preferred
DC power permits operation
OR recharging, but not both
100-240 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=75Ω or 100Ω
Z = ∞Ω
Open
Z = 0Ω
Zo=75Ω or 100Ω
Short
Short
14

15. Pulse TDR
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
Good Splice
Poor Splice
Mixed Impedances Bridged Tap
Water Split Pair That
Resplits
Pinched Coax
Poor Quality
Coax
1
2
9
10
1
3
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 & Hold 2 Sec Release

20. Measurement ScreenCable 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 Z0
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 cablesTDR’s normal display will
shift to an amplified reflection
display with Z0 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 pairsTDR’s normal display will
shift to an amplified reflection
Display Z0 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
5 – R2 YellowYellow
6 – R3 not connected
RJ12 Wired
USOC
1 – T2 Black
2 – R1 Red
3 – T1 Green
4 – R2 YellowYellow
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. 0 160 320
200
150
100
50
0
CRSR1 291ft 10in 101.4 to 101.6 Ω
GENERIC 24AWG VF 66.7
0 160 320
200
150
100
50
0
CRSR1 291ft 10in 101.4 to 101.6 Ω
GENERIC 24AWG VF 66.7
Kitchen
Living Room
Bedroom 1
Bedroom 2
Bedroom 3
Shorting Plug
Three Step Check
. Unplug all
phones
. Connect the
TDR at NID
. 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. 0 160 320
200
150
100
50
0
CRSR1 155ft 3in 101.4 to 101.6 Ω
GENERIC 24AWG VF 66.7
0 160 320
200
150
100
50
0
CRSR1 155ft 3in 101.4 to 101.6 Ω
GENERIC 24AWG VF 66.7
Three Step Check
Unplug all
phones
Connect the
TDR at NID
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
Shorting Plug
Shorting Plug
47

48. Kitchen
Living Room
Bedroom 1
Bedroom 2
Bedroom 3
NID
0 160 320
200
150
100
50
0
CRSR1 174ft 7in 101.5 to 101.8 Ω
GENERIC 24AWG VF 66.7
Three Step Check
Unplug all
phones
Connect the
TDR at NID
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 Splices Bad Connections
Series Resistance Cable Damage
Wet Cable Load Coils
Impedance Mismatches Lossy 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.
1374 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 VisionTM
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 www.aeatechnology.com
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 2 50 78.6 12/30/11 11:58
ANTENNA 5 50 78.6 12/30/11
12:26
CON. 401 100 67.7 1/3/12 07:39
CON. 331 100 67.7 1/3/12 08:38
SENSOR 6-1 100 72.3 1/5/12
09:11
SENSOR 6-2 100 72.3 1/5/12
09:15
FLIR 1 75 74.8 1/10/12 10:27
58
Press first to
upload a list
of stored
traces
Direct save TDR
memory to PC
folderCaution – 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
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.
5933 Sea Lion Place, Ste 112
Carlsbad, CA 92010
Tel: 800-258-7805 or +1-760-931-8979
Fax: +1-760-931-8969
www.aeatechnology.com
Email
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