NH High Speed Data Initiative Mike Bewersdorf TDS OSP Engineering - - PowerPoint PPT Presentation

▶
nh high speed data initiative
SMART_READER_LITE
LIVE PREVIEW

NH High Speed Data Initiative Mike Bewersdorf TDS OSP Engineering - - PowerPoint PPT Presentation

Feb 21, 2024 417 likes •625 views

NH High Speed Data Initiative Mike Bewersdorf TDS OSP Engineering February 2009 Objective and Site Selection Objective: Provide a 25 Meg (downstream) by 1.5 Meg (upstream) data connection across multiple technologies. Deployment

slide-1
SLIDE 1

NH High Speed Data Initiative

Mike Bewersdorf TDS – OSP Engineering February 2009

slide-2
SLIDE 2

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 1

Objective and Site Selection

  • Objective:
  • Provide a 25 Meg (downstream) by 1.5 Meg (upstream) data connection across

multiple technologies.

  • Deployment Strategies Analyzed for Each Serving Area:
  • Fiber to the Home (FTTH) using Gigabit Passive Optical Network (GPON)
  • Fiber to the Node (FTTN) using ADSL2+ & VDSL2
  • Criteria for Selecting Areas to Serve
  • Level of competition
  • Density of households
  • Cost of build
  • Primary contributing factors driving cost of build…
  • Do we own the interconnection into the exchange?
  • Type of outside plant construction in the target area - aerial vs. buried
slide-3
SLIDE 3

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 2

  • Planning – April through May
  • Reviewed 12 exchanges
  • Serving 20K+ service addresses (SA)
  • Estimated both FTTN and FTTH solutions for all customers
  • Without fail, existing fiber fed buildings, without any extenuating

circumstances; ie. power, space, etc., always proved out as FTTN

  • Solution was selected based on cost per service address passed per serving area
  • If FTTH could be constructed for less than double FTTN, we selected FTTH
  • Once costs were estimated, a priority was put to each serving area based on

number of homes served and average cost, until we reached the identified budget

Planning Process

slide-4
SLIDE 4

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 3

Planning Process – Household Density Map

slide-5
SLIDE 5

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 4

  • Engineering – May through September
  • Engineered solutions in 10 exchanges
  • 25 fiber distribution hub (FDH) locations
  • Passing 4800 SA’s
  • 154 strand miles of fiber
  • 35,000 fiber splices
  • 19 FTTN locations
  • Passing 4100 SA’s

Engineering ultimately exceeded planning estimates and budget availability, forcing sites to be eliminated for this phase.

Engineering Process

slide-6
SLIDE 6

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 5

Engineering Process – Sample Staking Sheet

slide-7
SLIDE 7

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 6

Engineering Process – Sample Fiber Splicing Block Diagram

slide-8
SLIDE 8

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 7

  • Deployment – August through December
  • Constructed solutions in 10 exchanges
  • 21 fiber distribution hub (FDH) locations
  • Passing 3560 SA’s
  • 126 strand miles of fiber
  • 29,000 fiber splices
  • 15 FTTN locations
  • Passing 2952 SA’s
  • Total SA’s Passed: 6512
  • Avg. Cost / SA Passed: $954

Deployment Process

slide-9
SLIDE 9

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 8

Sample Hybrid FTTN / FTTH Network

slide-10
SLIDE 10

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 9

Sample FTTN Network

Our Networks

slide-11
SLIDE 11

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 10

Sample FTTH Network

slide-12
SLIDE 12

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 11

Lessons Learned (LL): Material Acquisition

  • Runs on material are inevitable, even in bad economic times, so plan

accordingly.

  • When we were working through the planning phases of these projects fiber lead

times were at 3-4 week intervals. When materials were ordered in the middle of June they were at 6 weeks and when the final materials were ordered delivery was at 10-12 weeks.

  • Splicing materials were ordered for an approximate savings of 12% over

bid pricing:

  • Points of interest:
  • When providing materials for ribbon fiber splicing, need to order separate ribbon

fiber splice trays and blocking kits

  • Doubling up MST tails on each port in the D5 closure seems to improve the seal

but requires more branch off clips then was original planned for

slide-13
SLIDE 13

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 12

LL: Planning and Engineering the Fiber Distribution Hub (FDH)

  • When possible, deploy the FDH in right of way…
  • Attaching to existing poles or working with municipalities to place facilities in public right of way,

will:

  • Help to manage time in the deployment by expediting site acquisition and engineering timelines
  • Save on overheads
  • Leaving sufficient slack in cabinets placed in right of way will allow the FDH to be moved in the

event of such a requirement.

  • Disadvantage is that we have no location to place electronics if an active fiber solution was

required in the future.

  • FDH with stub
  • The stub allows splicing to be done in an environmentally controlled location and eliminates prep

for more efficient turn around.

  • 864 FDH – 2 Men – 4.5 to 5 days
  • The part number for an 864 FDH that we selected in the OSP Ordering Guide is for the largest

stub possible. It will be provided as 4 216 stubs for distribution and 1 72 stub for feed.

  • Ordering the proper size stubs will reduce the required additional splicing and tie cables between

closures as depicted on the next slide.

  • More attention to ordering is necessary to facilitate matching of stub and field cables.
  • Recommend the standard stub size be reduced to 144.
  • Leaving 80’ of slack in tie cables between closures will allow for a single closure to be pulled out

for future splicing or maintenance.

slide-14
SLIDE 14

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 13

LL: Planning and Engineering the FDH…continued

slide-15
SLIDE 15

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 14

LL: Planning and Engineering FDH…continued

  • FDH with splice wheels
  • Eliminate some of the issues discussed with the FDH with stub and reduced splicing and closure

costs to some extent.

  • They require significant prep which translates to time on an aggressive schedule
  • 288 FDH – 2 Men – 3.5 to 4 days – 1.5 to 2 days of that are prep.
  • 432 FDH – 2 Men – 4.5 to 5 days – 2.5 to 3 days of that are prep – same amount of time as an 864 w/ stubs
  • Now that the full scope of the prep required is known, splicing pricing might be impacted to

reflect the amount of time in the next phase of the build out.

  • In northern climates, there are no tails to be brought to a splicing van or trailer. Splicing was

completed in a tent, the lack of environmentally controlled conditions further impacted productivity.

slide-16
SLIDE 16

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 15

LL: Planning and Engineering – SCA vs. MST

  • SCA
  • Provides a more finished look and feel
  • Instills a confidence level in the installation

personnel because of its similarity to a terminal.

  • Inventory is easier to manage as their are
  • nly two options a 9” closure w/ 4 or 8

ports

  • They are more expensive
  • Harder to engineer for, as they require

hand coils be left and accounted for in initial engineering of fiber

  • Prep and splicing of these closures is

extremely prohibitive and consistent production is two per man per day

  • A better understanding of the amount of time

necessary will drive future cost in closure placement and splicing as subcontractors who work by the piece have left these jobs

slide-17
SLIDE 17

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 16

LL: Planning and Engineering – SCA vs. MST…continued

  • MST
  • Is an effective but crude manner to construct outside plant
  • It is a cost effective and time saving alternative to the SCA
  • It limits the number of splice points.
  • We were already using our own homemade MST’s, at a much

greater cost, to limit our access points in our larger fibers, 144 and greater, in TN.

  • While construction takes a little longer, splicing is much
  • faster. Instead of 2 SCA locations per man per day from a

bucket, a splicer can drop the tails and cable, bring them into a van or trailer and turn up 7 or 8 MST’s in a day.

  • The MST did pose logistical problems in storage and

inventory management for both TDS and our contractors.

  • The MST w/ a 2000’ tail provided difficult to pull into duct

and runs of this length should be avoided in buried plant applications.

  • There is some concern about the proper amount of

inventory to repair cable damage.

  • Have recommend 4 Port MST’s w/ 2000’ tails and 8 Port MST’s

w/2000’ tails to be left at a centralized location in our area for maintenance purposes

slide-18
SLIDE 18

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 17

Keys to Success

  • Partner with a trusted engineering and construction contractor!
  • Bring the team together regularly to discuss progress!
  • Get in the field during construction to make sure your getting

what you want!

slide-19
SLIDE 19

February 2009 TANE/NYSTA – TDS High Speed Data Initiative - 18