# OSP Engineering Calculators, Built by Engineers Who Use Them

**URL:** https://draftech.com/tools/

**Canonical:** https://draftech.com/tools/

**Updated:** Not stated

**Description:** Free engineering tools from Draftech: PON power budget calculator for GPON/XGS-PON and a NESC pole loading pre-check for fiber attachments. No signup required.

**Visible word count:** 212

**Source:** derived from tools/index.html by projects/content-pipeline/src/sync_blog_ai_mirrors.py - do not hand-edit

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Free Engineering Tools

No signup, no email gate. The same first-pass checks our engineers run before a design review: free for the fiber and utility community. Results are engineering estimates; the stamped work is what we do for a living.

FTTH / PON Design

## PON Power Budget Calculator

Check a GPON or XGS-PON link against ITU-T class budgets: splitter ratio, fiber length, connectors and splices, design margin, with a pass/fail verdict, receiver-overload check, and maximum reach. Shareable result links for design reviews.

[Open the calculator →](https://draftech.com/tools/pon-power-budget-calculator)

Pole Loading / Make-Ready

## Pole Loading Pre-Check Calculator

NESC Rule 250B screening for a proposed fiber attachment: district wind and ice loads versus wood pole capacity by class and species. A first-pass utilization estimate before you order the stamped pole loading analysis.

[Open the calculator →](https://draftech.com/tools/pole-loading-calculator)

These tools produce screening-level engineering estimates and are not a substitute for a stamped analysis or a construction-ready design. When a project needs the real thing, that's our day job: [pole loading analysis](https://draftech.com/services/pole-loading-analysis) ($45 to $75 per pole), [FTTH design](https://draftech.com/services/ftth-design), and [fiber network design](https://draftech.com/services/fiber-network-design) from an in-house team of 600+ engineers. Active in 24 states. Available across all 50 U.S. states. Questions or a tool you'd like to see next? [info@draftech.com](mailto:info@draftech.com)