The terminal box is a fiber management product used to distribute and protect optical fiber links in FTTH networks. – Indoor or Outdoor Usage? ✅ Fiber terminal boxes are essential in every FTTH or MDU fiber build ✅ Wall, pole, rail. ⚡ The terminal box is the last structured node before the subscriber. 📊 Three deployment types, three port ranges. Rack-mount (1U–3U, 12–48. In modern FTTH (Fiber to the Home) and optical communication networks, three types of fiber distribution products are widely used: Splitter Distribution Box, ODF (Optical Distribution Frame), and Fiber Terminal Box.