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Local Loop Challenges. Scott Jones Williams Vyvx Services Oct 2, 2000. VIDEO SERVICES FORUM. Agenda. Issues Use of AC power services at POPs Use of Mid-point video demarc Use of multiple carriers per local loop (Inter- LATA service) Local Loops not meeting defined specs within tariffs

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local loop challenges

Local Loop Challenges

Scott Jones

Williams Vyvx ServicesOct 2, 2000

VIDEO SERVICES FORUM

agenda
Agenda
  • Issues
    • Use of AC power services at POPs
    • Use of Mid-point video demarc
    • Use of multiple carriers per local loop (Inter- LATA service)
    • Local Loops not meeting defined specs within tariffs
  • Recommendations
issues
Issues
  • AC Power use in POPs
    • POP AC Power is single sourced non-redundant.
    • AC Power within the POP is limited, mostly all converted to DC power.
    • DC power within the POPs is redundant with Battery backup.
    • DC power provides a cleaner signal to the video equipment, less chance of power spikes, reduced EMI, no hits during power loss.
    • During a power loss the DC power will be unaffected while the diesel generators come on-line because the equipment is feed primarily by batteries.
issues1
Issues
  • Mid-Point Video Demarc
    • Local Loop Provider (LLP) will use a point-to-point system to deliver the signal between the customer premise and a Telco Central Office. Then LLP will use a multipoint system between that CO and the Vyvx POP
    • Creates video/audio baseband transition point problems.
      • Reduced video/audio quality
      • additional point of failure
      • additional adjustment point
issues2
Issues
  • Use of multiple carriers per local loop (Inter- LATA service)
    • Service type created when the two local loop end points are in LATAs serviced by two different local loop providers.
    • Typically one group is awarded the contract and the other group becomes the sub-contractor.
    • Trouble-shooting procedures are complex as the customer is not allowed direct access to the sub-contracted LLP and by the fact that the troubleshooting procedures may differ.
issues3
Issues
  • Local Loops not meeting defined specs within tariffs
    • Equipment may not be delivered from the factory stating that it meets local loop specifications.
    • Equipment is installed without documented proof that it meets local loop specifications outlined in the tariff.
    • LLPs are not using test equipment and procedures to prove the loops meet tariff before been handed over to the customer.
recommendations
Recommendations
  • AC Power use in POPs
    • Vyvx recommends that at a minimum all Video equipment serving in an “on-air” capacity in the Vyvx POPs or any other location designed with redundant DC power support be DC powered.
    • VSF Discussion and Recommendation
recommendations1
Recommendations
  • Mid-Point Video Demarc
    • Vyvx recommends an architecture be created such that the CO collection point does not go through a baseband video/audio transition and also that equipment be DC powered due to the DC restoration capabilities at the COs
    • VSF Discussion and Recommendation
recommendations2
Recommendations
  • Use of multiple carriers per local loop (Inter- LATA service)
    • Vyvx recommends, where possible, a common procedure be created for troubleshooting video transport services and/or Vyvx (the customer) be given direct access to all the LLPs associated with a feed during an outage.
    • VSF Discussion and Recommendation
recommendations3
Recommendations
  • Local Loops not meeting defined specs within tariffs
    • Vyvx recommends that all equipment from the manufactures are shipped with documentation that proves it met local loop requirements (excluding adjustments or demarcation cabling) and/or all LLP must provide documented proof to Vyvx (the customer) that the local loop met the specification listed within their tariff using agreed upon test equipment and procedures.
    • VSF Discussion and Recommendation