Textron Greenlee CableScout TV220 Instruction Manual
INSTRUCTION MANUAL
TV220 CableScout
™
Metallic Time-Domain Reflectometer
for Cable TV
Read and understand all of the instructions and safety information
in this manual before operating or servicing this tool.
52040565 REV 1 © 2011 Greenlee Textron Inc. 10/11
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Table of Contents
Preface .................................................................................................................................4
Description, Safety, and Purpose of this Manual ..........................................................4
Warranty .....................................................................................................................4
Important Safety Information ..............................................................................................5
How to Use this Manual .......................................................................................................7
Chapter 1. TestWizard....................................................................................................... 11
Chapter 2. Front Panel Controls .......................................................................................15
Controls, Indicators, and Connectors ......................................................................... 15
Display/Indicators ..................................................................................................... 15
Controls .................................................................................................................... 16
Connectors ............................................................................................................... 17
Power-Up Settings ....................................................................................................17
Chapter 3. Setting Up the Instrument ..............................................................................21
Connecting the Cable ................................................................................................21
Setup Menu .............................................................................................................. 22
More Settings ...........................................................................................................28
Test Types ................................................................................................................30
Chapter 4. Testing a Cable................................................................................................ 33
TestWizard ................................................................................................................ 33
Auto TDR ..................................................................................................................36
Manual TDR ..............................................................................................................45
Chapter 5. Save/Load .......................................................................................................55
Save ......................................................................................................................... 55
Save Load Preview ................................................................................................... 57
Transferring a File to a PC ......................................................................................... 58
Chapter 6. Maintenance ...................................................................................................61
Error Messages ........................................................................................................61
Inspection and Cleaning ............................................................................................61
Appendix A. Specifications, Options, and Accessories ................................................... 65
Specifications ........................................................................................................... 65
Accessories .............................................................................................................. 67
Appendix B. Glossary .......................................................................................................69
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3TV220 CableScout TDR
Preface
Description
The Greenlee Communications TV220 CableScout™ Time-Domain Reflectometer (TDR) is
specifically intended for technicians and troubleshooting experts in the outside-plant cable TV
and other coaxial-cable test environments.
location, cable installation, and cable maintenance. The TV220 is easy to use, very accurate,
and characterizes coaxial cable up to 3.7 km (12,000 ft) in length.
Safety
Safety is essential in the use and maintenance of Greenlee tools and equipment. This manual
and any markings on the tool provide information for avoiding hazards and unsafe practices
related to the use of this tool. Observe all of the safety information provided.
Purpose of this Manual
This manual is intended to familiarize all personnel with the safe operation and maintenance
procedures for the TV220 CableScout Time-Domain Reflectometer.
Keep this manual available to all personnel. Replacement manuals are available upon request
at no charge.
Warranty
This tool’s uses include: fault identification, fault
Greenlee Textron Inc. warrants to the original purchaser of these goods for use that these
products will be free from defects in workmanship and material for one year. This warranty is
subject to the same terms and conditions contained in Greenlee Textron Inc.’s standard oneyear limited warranty.
For items not covered under warranty (such as items dropped, abused, etc.), a repair cost
quote is available upon request.
Note: Prior to returning any test instrument, please check replaceable batteries or make sure
the battery is at full charge.
All specifications are nominal and may change as design improvements occur. Greenlee Textron Inc.
shall not be liable for damages resulting from misapplication or misuse of its products.
CableScout and TestWizard are trademarks of Greenlee Textron Inc.
Do not discard this product or throw away!
KEEP THIS MANUAL
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Important Safety Information
SAFETY ALERT SYMBOL
This symbol is used to call your attention to hazards or unsafe practices which could
result in an injury or property damage. The signal word, defined below, indicates the
severity of the hazard. The message after the signal word provides information for
preventing or avoiding the hazard.
Immediate hazards which, if not avoided, WILL result in severe injury or death.
Hazards which, if not avoided, COULD result in severe injury or death.
Hazards or unsafe practices which, if not avoided, MAY result in injury or property
damage.
Read and understand this material before operating or servicing this
equipment. Failure to understand how to safely operate this tool could
result in an accident causing serious injury or death.
Electric shock hazard:
Contact with live circuits could result in severe injury or death.
Fire hazard:
Do not operate this tool in an explosive atmosphere.
Failure to observe this warning could result in severe injury or death.
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Important Safety Information
Electric shock hazard:
t Do not expose the battery to fire or intense heat. Do not incinerate the battery.
t Do not open or mutilate the battery.
t Do not charge the battery in a gas-tight container.
t Do not short the battery terminals.
t Avoid contact with released electrolyte, which is corrosive and may damage eyes, skin,
and clothing. Flush with water at once if contact is made with electrolyte (acid).
t Disconnect battery when stored for long periods of time.
Failure to observe these precautions may result in injury and may damage the unit.
Electric shock hazard:
t Use only the power/charger adapter that is specified for the TV220.
t The power/charger adapter is not hermetically sealed. Do not expose it to moisture.
t Do not remove covers or panels except to access the battery. Do not operate the
instrument without covers and panels in place.
Failure to observe these precautions may result in injury and may damage the unit.
Battery: The TV220 is powered by a rechargeable, 10.8 V, 2.4 Ah, lithium-ion battery. Only the
entire battery is replaceable. Individual cells are not replaceable. The battery must be recycled.
Dispose of depleted batteries in accordance with Local, State, and Federal Laws.
Fuse: The fuse is not user replaceable.
Electromagnetic Emissions: The TV220 has been verified for compliance to FCC Class A and
European Union EMC.
Symbols on the Unit
Warning—Read the instruction manual
Danger—high voltage
Protective ground (earth terminal)
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How to Use This Manual
Note: The procedures in this manual apply to all instrument options.
Chapter 1. TestWizard.
Instructions on using TestWizard, the quickest and easiest way to test a cable.
Chapter 2. Front Panel Controls.
Locations and descriptions of buttons, softkeys, and connectors.
Chapter 3. Setting Up the Instrument.
Detailed instructions on how to set up the instrument to test a cable, and information about
the different types of tests the TV220 can perform.
Chapter 4. Testing a Cable.
Detailed instructions on the three ways of testing a cable, including TestWizard (quickest
and easiest way to test a cable), Auto TDR (most settings are controlled automatically by the
TV220), and Manual TDR (for the expert user who wants full control over instrument settings).
Chapter 5. Save/Load.
Detailed instructions on saving and loading data, and transferring data to or from a PC.
Chapter 6. Maintenance.
Information on maintenance, inspection, and cleaning of the TV220.
Appendix A. Specifications, Options, and Accessories.
Appendix B. Glossary.
In this manual, the word waveform refers to the image of a test cable displayed on the LCD.
Because of different instrument configurations and operating setups, the example screens
printed in this manual may not be identical to screens displayed by your instrument.
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Chapter 1. TestWizard
TestWizard is the quickest and easiest way to test a cable. You press one button, and the
TV220 asks you some simple questions and then automatically tests the cable and displays a
waveform with events marked.
Access TestWizard from any display in the instrument by simply pressing TESTWIZARD on the
front panel. To use the TestWizard option, follow these steps:
1. Press TESTWIZARD to display the TestWizard – Choose Cable Type (User List) menu.
Use ST to select your cable type from this list. If your exact cable type is not on this
list, select one that is the most similar to your cable type, or press Exit Wizard and
go tothe Setup menu to add the proper cable type or to create a custom cable type.
(Referto“Choosing the Cable Type” in Chapter 3.)
2. Press Next to display the TestWizard – Choose Cable Span menu. Use ST to select
cable length. To be sure that the TV220 locates the event, pick the smallest span that is
greater than the length of cable you are testing.
3. Press Next to display the TestWizard – Choose Event Type menu. Use ST to select the
appropriate level of analysis, as follows:
t If the system you are testing is not working at all, select FIND LARGEST EVENT.
t If the system is working poorly and you want to find the most significant problem
areas, select FIND 3 LARGEST EVENTS.
t If you want to confirm that the cable and all passive devices are within specifications,
and you want to find everything on the system that could possibly affect it, select
FINDALL EVENTS.
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Chapter 1
4. Press Next to display the TestWizard Measurement display (Figure 1-1).
(This may take 10 to 30 seconds.)
TestWizard
0 200100 300
feet
1
Vp: 0.820 ERL: 0 dB DIST: 414.9 ft
Use (Right/Left) to move cursor to events.
# = event
e
= possible echo
Zoom On
Zoom Off
2 3
Main
Display
Exit
Wizard
Save/
Load
Figure 1-1: TestWizard Measurement Display
This display shows a waveform with the events of the selected type marked and numbered.
Use the Zoom On/Zoom Off softkey to magnify sections of the waveform for closer viewing
t Zoom On expands the waveform around the cursor. When zoom is on, moving the cursor to
a different event causes that event to be redrawn so that it fits in the display without being
clipped. (The event may be magnified or reduced to fit properly in the display.)
t Zoom Off returns the waveform to normal view.
Press Exit Wizard from any menu or display to exit TestWizard and return to the menu or
display you were in when the TESTWIZARD button was pressed.
For more information on TestWizard and for detailed instructions on setting up the TV220 to
test a cable in Auto TDR and Manual TDR, refer to Chapters 2–4.
To save or load the waveform from your test cable, refer to Chapter 5 for detailed instructions.
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Chapter 2. Front Panel Controls
Controls, Indicators, and Connectors
The TV220 controls are described briefly in this chapter. More detailed information is available
in the descriptions of each measurement and function.
The TV220 maintains consistency in all operating modes. If a control is not available in a
particular mode of operation, the softkey is blank. If a control is available in a particular mode
of operation but is disabled at a particular point in the testing procedure, the softkey text is
gray. If you attempt to use that softkey, a beep sounds.
Display/Indicators
The display is a 640x480-pixel liquid-crystal display (LCD). The display conveys three distinct
kinds of information to the operator at all times: operating mode (current status), softkey
labels, and data or information for the current operating mode.
The name of the current menu or display of the instrument appears on the top status line of
the display, above the window. This window includes data, menu choices, or a test waveform,
depending upon what selections you have made. Any additional messages to the operator
appear in the dialog text box, which is the smaller framed window in the lower portion of the
LCD (Figure 2-3).
A five-level battery-status indicator, located in the upper right corner of all displays, shows the
battery-charge level. A low-battery/power-off message is displayed when the battery level is
too low to continue operation of the instrument; the user should then use the AC charger or
the DC adapter. When the battery is in the recharge now condition, it is recommended that the
user connects the AC adapter/charger or the DC adapter charger cable to the instrument to
recharge the battery. The TV220 can continue to be used while the battery is being charged.
Full charge
3/4 charge
1/2 charge
1/4 charge
Recharge now
Battery being charged
AC/DC adapter/charger in use
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Chapter 2
Controls
All operator controls are pushbuttons.
5
4
1
Figure 2-1: TV220 Front Panel Controls
2
3
1. POWER Button: This button turns the TV220 on and off.
2. HELP Button: Press HELP to display detailed information on the current display and the
operation of the controls. The help displays are context-sensitive popup windows that
overlay the current display when you press the HELP button. You can access detailed
information for all menus, displays, and functions of the instrument by pressing HELP.
Press HELP a second time to remove the help display.
In selected menus, Lesson softkeys are available that provide tutorials about using the
TV220, Auto TDR, Manual TDR, cable selection, saving, and transferring data.
3. TESTWIZARD Button: TestWizard is one of three ways to test a cable. TestWizard is
a quick and easy way to run a test. Press TESTWIZARD to start a test at any time, no
matter what menu you are in.
4. Scroll Controls: The arrow buttons serve the functions of moving the cursor left and
right across the displayed waveform or changing values (WX), scrolling through a menu
or changing values (ST), and scrolling pages (6+ ST).
5. Softkeys: There are six softkeys across the bottom of the LCD and two on the right side.
These are called softkeys because their labels are displayed on the LCD. Their functions
vary according to the instrument function. Softkeys are used to 1) change functions or
modes, 2) select a menu item, and 3) turn functions on and off.
Softkey explanations are found within each description of the display types in this manual,
or by pressing HELP and then the softkey.
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Front Panel Controls
Connectors
12 3
Figure 2-2: Connectors
1. AC Adapter/Charger: This connector is for the battery charger/adapter.
2. 75 Ω: This connector is a 75 Ω, F-type for connecting to the cable under test.
3. Type B USB Port: Use this connector to connect the TV220 to a computer to download
test data.
Power-Up Settings
When you press POWER to turn on the instrument, the TV220 shows the Main Display.
Theinstrument powers up with the same settings in place as when it was powered off.
Main
1. Connect to cable under test.
2. Press Setup to select the cable type or
3. Press Test to use a previous setup.
Use (Up/Down) to adjust contrast.
TV220
Lesson
Reset to
Defaults
Setup
Test
Figure 2-3: Main Display
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Chapter 3. Setting Up the Instrument
Connecting the Cable
Select the appropriate connector adapter and/or jumper cable from the TV220 accessory
package. The standard accessories supplied are shown below.
F-type female to
BNC male
Jumper cable, F-type
male to F-type male
F-type female to
F-type female
BNC female to
Alligator Clips
t To connect to an F-type female, use the male-to-male F-type jumper cable. Connect one
end to the instrument and the other end to the cable under test.
t To connect to an F-type male, attach the jumper cable to the instrument and the F-type
female-to-female adapter to the end of the jumper. Then attach the other end of that to the
cable under test.
t To test loose wires, attach the jumper cable to the instrument, and then the F-type female
to BNC-male adapter to the free end of the jumper. Next, attach the BNC-female-to-alligator
to that adapter, and then the alligator clips to the cable under test. This type of connection
causes an impedance mismatch and reduces the measurement effectiveness.
t The F-type to KS test adapter makes it easy and efficient to test cable at taps or amplifiers
using the threaded port where the seizure screw is located (KS port). This adapter
provides the best connection and matches impedance for the most effective instrument
performance. If you are connecting to a KS port, use this adapter. Attach the KS end to the
tap or amplifier, and then attach the F-type end to one end of your test lead. Attach the
other end of the test lead to the instrument.
F-type to
KS test adapter
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Chapter 3
Setup Menu
Press the POWER button to turn on the instrument and reach the Main Display (Figure 3-1).
Main
1. Connect to cable under test.
2. Press Setup to select the cable type or
3. Press Test to use a previous setup.
Use (Up/Down) to adjust contrast.
TV220
Lesson
Figure 3-1: Main Display
Reset to
Defaults
Setup
Test
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Setting Up the Instrument
From the Main Display, you can:
t Press TV220 Lesson for a tutorial about using the TV220.
t Press Reset to Defaults to restore factory defaults if instrument settings have been
changed and you want to reset them.
t Connect your cable and press Test to display the waveform for your test cable if you do not
need to change settings.
t Press Setup to display the Setup – Choose Cable Type (User List) menu (Figure 3-2) if you
need to change settings. The Setup menu is the gateway to all setups for the TV220.
Setup – Choose Cable Type (User List)
Cable Name
< Current Settings >
Belden RG-6/U
Comm/Scope (QR) 540 Series
Comm/Scope (QR) 715 Series
Comm/Scope 6 Series
Times Fiber T10 6 Series
Times Fiber T10 500 Series
Times Fiber T10 750 Series
Trilogy MC2 (.500)
Trilogy MC2 (.750)
Use (Up/Down) to select cable type.
Loss(dB)/100m @ 500 MHz Vp
15.48
15.48
4.89
3.90
15.09
14.50
5.68
3.87
4.86
3.38
0.820
0.820
0.880
0.880
0.850
0.850
0.870
0.870
0.930
0.930
Display
Main
Return
to Test
Test
Type
Add
Cable
Remove
Cable
Cable
Lesson
More
Settings
Figure 3-2: Setup – Choose Cable Type (User List)
A Cable Lesson softkey is available from this menu. Press this softkey for detailed instructions
on adding and creating cable types.
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Chapter 3
Choosing the Cable Type
The most important step in operating the TV220 is to select the correct cable type. The cable
type defines the velocity of propagation (Vp) and cable-loss values for the test cable. Press
ST to select a cable type from the User List.
If your cable type is not listed on the User List, press Add Cable to display the Setup – Add
Cable Type from Factory List menu (Figure 3-3).
Setup – Add Cable Type from Factory List
Cable Name
Times Fiber T10 412 Series
Times Fiber T10 500 Series
Times Fiber T10 625 Series
Times Fiber T10 750 Series
Times Fiber T10 875 Series
Times Fiber T10 1000 Series
Times Fiber T10 59 Series
Times Fiber T10 6 Series
Times Fiber T10 611 Series
Times Fiber T10 11 Series
Use (Up/Down) to select cable type.
Loss(dB)/100m @ 500 MHz Vp
7.05
5.68
4.69
3.87
3.38
3.15
17.80
14.50
11.80
9.35
0.870
0.870
0.870
0.870
0.870
0.870
0.850
0.850
0.850
0.850
Display
Main
Return
to Test
Copy to
User List
Create
Custom Cable
Previous
Menu
Figure 3-3: Setup – Add Cable Type from Factory List
The Factory List is a comprehensive list of cable types from major cable manufacturers.
Youcan select a factory cable type from this list and copy it to the User List.
1. Press ST to highlight the factory cable type.
2. Press Copy to User List to copy the selected cable type to the User List.
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