Video Playlists

Short field videos from the OSP Hub channel, one playlist per operation.

FAHMY

Understand. Build. Deliver.

FAHMY is the centralized resource for Outside Plant (OSP) Construction and Engineering. The OSP hub for construction crews and engineers to access references, tools, interactive maps, and step-by-step SOPs for aerial, underground, and splicing.

  • 38 SOP Steps
  • 76 Map Parts
  • 7 Field Tools
  • 240 Glossary Terms
  • 40 Standards
Route Profile (Schematic)Side-on cutaway of one route: a guyed pole line with strand, lashed fiber, slack and a closure, a riser into a handhole, a bore under a road and existing utilities, a pedestal and drops. Schematic, not to scale. Clearances, depths and separations follow NESC, state law and owner specifications.SCGSSW

OSP Map · Profile View · 36 Parts

Explore the Route Profile

  • AE Aerial
  • UG Underground
  • SPL Splicing

Schematic, not to scale. Clearances, depths and separations follow NESC, state law and owner specifications.

Operations

Step-by-step SOPs for each crew, from the first permit to the as-builts. Every step links to the parts on the map.

Field Tools

Calculators that show their math, keep your inputs on this device and work offline.

  • Fiber Color Locator

    Find the tube color and fiber color for a fiber number, or the fiber number for a tube and fiber color.

  • Optical Loss Budget

    Add up optical link loss, compare it with the optics, and show headroom and loss-limited reach.

  • Pull Planner

    Estimate cable pulling tension through straights and sweeps, compare both directions, and find a mid-route split.

  • Duct Fill

    Check percent fill, remaining capacity and jam risk for cables in a duct.

  • OTDR Splice Average

    Average bidirectional OTDR readings for splice loss, with pass or fail against the owner's threshold.

  • Cable Footage and Slack Estimator

    Add up the cable a job needs (route, slack, vertical runs and tails, allowance), compare it with the reel, read the length used from the footage marks, and size slack coils.

  • Bore Planning Helper

    Suggest a backreamer size, compute hole and pass volumes, estimate drilling fluid from the supplier's factor, and sketch the HDD entry path and setback against the first crossing.

The Lifecycle

6 stages from the first walkout to closeout, grouped as Understand, Build and Deliver. Each stage has a checklist and the mistakes that cost the most.

  1. Understand

    STA 0+00 – 1+00
    1. STA 0+00

      Plan

      Scope the route before anyone draws a line.

      8-item checklist

    2. STA 1+00

      Design

      Engineer it so a crew can build it without guessing.

      10-item checklist

  2. Build

    STA 2+00 – 3+00
    1. STA 2+00

      Permit

      Earn the right to build on poles and in the right-of-way.

      8-item checklist

    2. STA 3+00

      Construct

      Place the plant safely, to print, and document it as you go.

      11-item checklist

  3. Deliver

    STA 4+00 – 5+00
    1. STA 4+00

      Splice & Test

      Prove the light gets through, and keep the evidence.

      10-item checklist

    2. STA 5+00

      Close Out

      Hand over records that match the field.

      9-item checklist

Numbers to Know

Cited values from FAHMY's SOPs and reference. Applicable law (OSHA, your state one-call law), the authority having jurisdiction, the owner's spec and the manufacturer's data govern the job and may be stricter.

  • Fusion Splice Loss, Maximum

    0.3 dB

    Per splice. The owner’s acceptance threshold governs and may be tighter.

    ANSI/TIA-568.3 SPL-07 Fusion Splicing (Single Fiber)

  • Bend Radius While Pulling

    20 × OD under pulling tension

    Minimum, in multiples of the cable OD. Use the manufacturer’s value if larger.

    TIA-568.3 AE-09 Cable Placement and Lashing

  • Bend Radius at Rest

    10 × OD at rest

    Minimum once the cable is placed and at rest. Use the manufacturer’s value if larger.

    TIA-568.3 AE-09 Cable Placement and Lashing

  • OSP Cable Tensile Rating

    600 lbf (2,670 N)

    Minimum rating for standard OSP cable (TIA-568.3), not a pulling limit. Drops and air-blown cable are rated lower. Set the limit for every cable from its data sheet, not from this minimum.

    TIA-568.3 UG-11 Cable Placement Underground

  • Trench Depth That Needs a Protective System

    5 feet (1.52 m)

    At this depth or deeper, unless in stable rock. Shallower cuts need one too unless a competent person finds no sign of a cave-in.

    OSHA 29 CFR 1926.652(a)(1) UG-04 Potholing (Daylighting)

  • Spoils Back from the Trench Edge

    2 feet (0.61 m)

    Minimum for spoils and equipment, or use retaining devices.

    OSHA 29 CFR 1926.651(j)(2) UG-04 Potholing (Daylighting)

  • Treat Power Fixtures as Energized

    20 in

    Metal power conduit, exposed vertical ground wires and streetlights below the comm attachments, or less than this above them. Test for voltage unless visibly bonded to the strand.

    29 CFR 1910.268(m)(3)(i) AE-04 Site Safety and Traffic Control for Aerial Work

  • Tolerance Zone Where Law Is Silent

    18 in (450 mm)

    APWA guideline: facility width plus this, measured from each outside edge of the facility, not from the paint. Your state one-call law governs and may differ.

    APWA Guidelines for Uniform Temporary Marking of Underground Facilities APWA Uniform Color Code

APWA Uniform Color Code

Why Orange?

Orange marks communication lines, so it is the color of what OSP crews build.

Read a marked site
  • Orange Communication, alarm or signal lines, cables or conduit
  • Red Electric power lines, cables, conduit and lighting cables
  • Yellow Gas, oil, steam, petroleum or gaseous materials
  • Blue Potable water
  • Green Sewers and drain lines
  • Purple Reclaimed water, irrigation and slurry lines
  • Pink Temporary survey markings
  • White Proposed excavation

Coming to FAHMY

What the hub has added since version 2 and what is planned next. Planned items may change.

  1. Make-Ready Tracker needs accounts and a backendPlanned
  2. OTDR Trace Reader Available
  3. Downloadable Templates SOW, BOM, tailboard, punch list, closeout packageAvailable
  4. Community Q&A Planned
  5. Spanish Edition Planned

Operations

More

Theme

Sunlight is maximum contrast for direct sun. Auto follows your device.