Fiber Optic Cable & Photonic Interconnects worked example

Test Station Capacity at 99% optical test station uptime: a worked example

What does the result look like when optical test station uptime reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when checking capacity for insertion loss, return loss, polarity, continuity, interferometry, or transceiver optical test stations.

The inputs for this scenario

  • Assemblies tested per optical test cycle: 4 assemblies / cycle (unchanged)
  • Available optical test cycles per period: 480 cycles (unchanged)
  • Optical test station uptime: 99 % (raised for this scenario; the documented default is 88)
  • First-pass optical test yield: 96 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross optical test capacity = assemblies tested per cycle × available optical test cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,825 units for good output capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross optical test capacity.
  • At this operating point the engine returns 19.2 units for test station uptime loss.
  • At this operating point the engine returns 76.03 units for retest and first-pass yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where optical test station uptime sits at 88% and the headline result is 1,622 units, this scenario comes in 12.5% above the baseline at 1,825 units.
  • A figure at this level is achievable when optical test station uptime is genuinely sustained, not just peaked for a shift. It models first-pass yield only — assemblies that pass after retest still consume station time, so a low first-pass yield understates the true time burden unless you account for the retest queue separately.

Results at a glance

  • Good output capacity: 1,825 units (headline result)
  • Gross optical test capacity: 1,920 units
  • Test station uptime loss: 19.2 units
  • Retest and first-pass yield loss: 76.03 units

Run it with your numbers

  • Every input above is editable in the live Test Station Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.