Fiber-Optic Cables

A fiber optic cable transmits signals instantly along a straight line, so one line can carry multiple redstone signals within one block space. The cable itself only goes in a straight line. Transformer blocks encode a redstone signal onto a cable and decode it again at the other end. A transformer can be placed on any of six faces and turned to face another transformer, and the signal is retained in that direction.

Each transformer cycles through nine color-coded signal states when right-clicked, and shift-right-clicking switches it between ENCODE and DECODE mode. In ENCODE mode, redstone power applied to the transformer sends its signal down the line of cables. In DECODE mode, a transformer facing another one emits redstone power when the matching signal arrives. Config options change how far a signal can travel, with a default of 64 blocks. A debug option makes particles appear around updated cable blocks.

The mod is published for Forge and NeoForge, for two release versions: 1.20.1 and 1.21.1. The latest files are 1.0.1 for 1.20.1 and 1.0.1 for 1.21.1, both dated 2025-11-12. The code is under All rights reserved, so the mod is not open source. The mod is incompatible with Essential Mod.