info and knowledge
already to go systems - toslink-dat - photolink-dat
apps and solutions - fiber-optic-app-dat
Signal == SerDes-dat
note
Gigabit optical-to-electrical modules must be used with Category 5e, Category 6, and Category 6e network cables
10G optical-to-electrical modules must be used with Category 7 and Category 8 10G network cables
advantage
demo
specs
圆形单工光缆,9/125 单模,Riser 等级,2.0mm
Usage
comparison
| Feature | 🔌 RS-485 (Twisted Pair) | 🔴 Plastic Optical Fiber (POF) | 🧪 Glass Optical Fiber |
|---|---|---|---|
| Max Distance | ~1200 m (4000 ft) | ~50–100 m | >10 km (with proper transceivers) |
| Typical Data Rates | 9.6 kbps – 10 Mbps (short) | 10 kbps – 250 kbps (up to ~100m) | 10 Mbps – 100 Gbps+ |
| Best Range vs Speed | 9.6 kbps @ 1.2 km | 9600–38400 bps @ 100 m | 1 Gbps @ 10+ km (SM fiber) |
| Signal Medium | Electrical (differential) | Light (650nm LED, red) | Light (laser or LED, 1310/1550nm) |
| EMI Immunity | Good | Excellent | Excellent |
| Electrical Isolation | Optional (via ICs) | Yes (complete) | Yes (complete) |
| Installation Cost | Low | Medium | High |
| Ease of Termination | Simple (screw/crimp) | Easy (cut and polish or click-fit) | Difficult (cleave, polish, splice) |
| Connectors | Screw terminal, DB9, etc. | Snap-in (HFBR, Versatile Link) | SC, LC, ST, FC |
| Multi-node Support | Yes (up to 32 nodes) | Point-to-point | Point-to-point (or splitter system) |
| Use Cases | Industrial control, MODBUS | EMI-safe short serial links, DIY | High-speed data, WAN/LAN, telecom |
fiber & copper ethernet PHY board
DP83869EVM - Copper & fiber industrial Ethernet PHY evaluation module
- DP83869HM