Communications Test

1
Communications Test

• CFL510G Handheld TDR

2
The New Megger CFL510G

• Auto Set Up
• Instant use
• Fast 2ns Pulse
• Near end fault identification
• Long Reach
• 15,000 ft maximum range
• Simple Operation
• 4 way control
• Trace hold feature
• On screen comparison
• High Definition Display

3
Technology

• Well proven
• Long used technology
• Electrical, telephone and CATV industries.
• Increasing in use
• Provide information on cable status much faster
  than other methods.
• Some industry commentators suggest that a TDR
  will be built into many instruments in the future

4
Product Uses

• TDRs are typically used to find existing faults
  on cables and have more applications in related
  areas such as
• Defining and proving a cable installation
• Establishing a benchmark for future comparison
• Cable length measurement (installed and on reel)
• Locate and evaluate events such as splices and
  joints
• Detect Bridge taps

5
Additional Uses

• Also research by NASA suggests that Aircraft
  Maintenance can be aided by regular TDR
  measurement
• TDR may be used to identify chafing of electrical
  wires on aircraft

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Key Product Features CFL510G

• Virtual TDR
• Coming soon on MeggerNetworks.com

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Key Product Features CFL510G

• High Clarity Display
• Aids definition of point of fault
• Dual Cursor
• With tagged cursor position
• Resolution to 0.3 Feet
• Fast accurate fault location
• 2ns Pulse
• Allowing near end visibility
• Trace hold capability
• With live trace overlay

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Key Product Features CFL510G

• AUTO
• Easy set up
• HOLD
• Allows trace hold on screen
• Live trace overlay on Hold
• Additional Modes
• Gives control over pulse, gain
• Input Protection
• Cat III up to 300 Volts
• Cat IV up to 150 Volts
• TNV-3 systems

9
TDR Overview

• TDRs locate and identify faults on metallic
  paired cable
• TDRs look for a change in impedance on the cable
• Cable damage, water ingress, taps and slices,
  flaws, etc.
• A pulse of energy is transmitted down a cable
• When the pulse reaches the end of the cable, or a
  fault, part of the energy is reflected back
• The reflected pulse can identify the nature and
  location of the fault
• Used in Electrical, telephone and CATV
  industries.
• Provide information on cable status much faster
  than other methods

10
Typical TDR Reflections

• TDR used to locate cable faults and determine
  length
• Shape of reflected pulse indicates fault type
• Knowing VOP for cable allows distance to fault to
  be displayed
• Length of cable on drum can be determined
• Variable pulse widths enable location of near and
  far faults

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Key Product Features CFL510G

• Single trace display with dual cursor
• 30 ft 15,000 ft ranges in 6 steps
• 2ns fast pulse to allow resolution of close in
  faults
• Trace hold with live trace overlay
• Cable Impedance 25ohm, 50ohm, 75ohm, 100ohm and
  Auto
• Last setting memory
• Inbuilt blocking filter
• 16 hr Battery life
• IP54 ingress protection
• Safety CATIII 300V (CAT IV 150V)