A New Approach to Making Copper Testing Easier
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The document discusses a new approach to copper testing in telecommunications, emphasizing the need for technicians to develop proficiency through effective training and practice. It presents seven strategies to enhance expertise, including coaching, collaboration, and simplifying testing processes with advanced tools like Pair Detective and FaultMapper. These innovations aim to improve fault identification and analysis, making copper testing more efficient while ensuring reliable service quality for advanced telecommunications technologies.
A New Approach to Making Copper Testing Easier
- 1. Exploring a New Approach to Making Copper Testing Easier Larry Holcomb – Advanced Technologies & Solutions, EXFO
- 2. © 2014 EXFO Inc. All rights reserved. 2 Practice Makes Perfect In “Outliers”, author Malcolm Gladwell discusses the 10,000-hour rule – explaining that proficiency in any field requires enormous time and deliberate practice. With telecommunications technology evolving so quickly, how can technicians become proficient? There are 8,765 hours in a year. A full-time employee works 2,080 hours per year.
- 3. 7 Ways to Cheat the 10,000-Hour Rule For Telecommunications Technicians © 2014 EXFO Inc. All rights reserved. 3 1. Get a coach. 2. Surround yourself with like-minded individuals. 3. Build expert habits. 4. Don’t waste time on the small stuff. 5. Deliberately practice. 6. Teach others. 7. Make copper testing easier!
- 4. © 2014 EXFO Inc. All rights reserved. 4
- 5. Service providers who deploy advanced services such as IPTV and high-speed data over DSL face a common challenge: How to train their workforce to ensure the highest performance standards? © 2014 EXFO Inc. All rights reserved. 5 Cable problems: › Opens, shorts, grounds › Loop length, load coils › Electrical problems (battery cross) › Bridged taps/laterals/multiple appearances Noise immunity problems: › Poor shield/earth grounding/bonding › Split pairs › Cable spectral management Disturber problems: › OSP power influence/mains influence › AM radio, HAM, shortwave › Crosstalk: ADSL, HDSL, T1/E1, ISDN, etc.
- 6. “Last-Mile” Performance Critical to Reliable Triple-Play Services ADSL2+ and VDSL2 provide “IP” services to the home © 2014 EXFO Inc. All rights reserved. 6 IP services require more bandwidth (IP video) More bandwidth means higher frequencies (VDSL2) Copper must be pristine to support these technologies
- 7. © 2014 EXFO Inc. All rights reserved. 7 Digital Multimeter The DMM gives valuable information on the plant’s ELECTRICAL condition. The order of operations is as follows (do not stray from this): 1. Voltage 2. Resistance (shorts meter) 3. Capacitance (opens meter)
- 8. © 2014 EXFO Inc. All rights reserved. 8 22 AWG / 0.6 mm 24 AWG / 0.5 mm 26 AWG / 0.4 mm nF/mile nF/km 83 83 83 Capacitance IS constant 52 52 52 Capacitance per Unit Length
- 9. ohm/mile ohm/km © 2014 EXFO Inc. All rights reserved. 9 175 270 440 Resistance IS NOT constant 108 175 270 Resistance per Unit Length 22 AWG / 0.6 mm 24 AWG / 0.5 mm 26 AWG / 0.4 mm *Attenuation varies as well (dB/Mile)
- 10. © 2014 EXFO Inc. All rights reserved. 10 Longitudinal Balance Legacy test methodology only tests at voice frequencies. New technologies require wideband testing. › How well does the circuit reject noise? › Only grounded/balanced pairs will limit noise. › Resistive and capacitive balances give us proper insight into the difference in length between tip and ring. › Swept longitudinal balance indicates the frequencies the circuit is having problems with single frequency is just that single frequency!
- 11. © 2014 EXFO Inc. All rights reserved. 11 Simplifying Copper Testing Working smarter, not harder. Speed up interpretation Eliminate guesswork Test beyond skill level Less training and expertise required Easier, yet much more powerful, copper testing. Pair Detective › Optimized fault identification through automated analysis › Intelligent guidance provides faster, more comprehensive interpretation FaultMapper › Automated copper pair analysis with fault location › Intuitive schematic/graphical presentation of the copper loop
- 12. © 2014 EXFO Inc. All rights reserved. 12 Pair Detective and FaultMapper Pair Detective › Detects the faults › Automatically runs multimeter tests and TDR › Results are color-coded with plain-language guidance › Quick line-condition check in one test FaultMapper › Locates the faults › Automatically runs TDR and RFL along with various other tests › Fault locations illustrated graphically
- 13. © 2014 EXFO Inc. All rights reserved. 13 Pair Detective
- 14. © 2014 EXFO Inc. All rights reserved. 14 FaultMapper
- 15. © 2014 EXFO Inc. All rights reserved. 15 EXFO MaxTester 635 Key Advantages Feature Benefit Large, 6-inch color display Easy-to-read icons and large graphs (outdoor optimized) Intuitive, graphical menus Requires little training Rugged package sealed against rain and dirt – IP54 rated Good investment that will meet the demands of outside plant use All-in-one package No modules to lose or pins to break Broadcom 63168 DSL chipset Supports bonding, vectoring and G.INP on single and bonded pairs today Unique SmartR technology (Pair Detective & FaultMapper) Intelligent, time-saving testing and analysis Flexible, software-only platform (bonding, VDSL2 and wideband can be added in the field) One platform can be used by several users; advanced options added as needed (purchase only when required)
- 16. © 2014 EXFO Inc. All rights reserved. 16 Questions?