Fiber standards

FIBER OPTIC DEPLOYMENT & SPLICING STANDARDS 
 1. Fiber Cable Preparation & Handling 
 
 
 
 Sheath Stripping : Use proper stripping tools to remove the outer jacket without nicking the buffer tubes or scoring the internal glass fibers. 
 Cleaning Protocol : Clean bare fibers thoroughly using 99% Isopropyl Alcohol (IPA) and lint-free wipes before cleaving. Never touch bare fiber with your fingers after cleaning. 
 Precision Cleaving : Ensure the fiber cleaver is clean and maintained. Target a cleave angle of less than 0.5 degrees for optimal fusion results. 
 
 
 2. Fusion Splicing & Enclosure Management 
 
 
 
 Splicing Threshold : The maximum allowable splice loss per joint must not exceed 0.05 dB . Re-splice immediately if the machine detects a higher loss. 
 Protection Sleeves : Center the heat-shrink protective sleeve over the splice point before activating the fusion splicer's heating oven. Ensure no air bubbles remain inside. 
 Tray Routing : Maintain a minimum bending radius inside splice trays to avoid microbending. Secure buffer tubes loosely with mini-tie wraps; do not overtighten. 
 Enclosure Sealing : Apply proper rubber seals and tightening torque to dome or inline enclosures to guarantee a 100% waterproof seal against weather elements. 
 
 
 3. Optical Link Testing & Commissioning 
 
 
 
 End-to-End OTDR Testing : Conduct bi-directional Optical Time-Domain Reflectometer (OTDR) traces at both 1311nm and 1550nm wavelengths to map the entire link profile. 
 Splice & Connector Reflection : Ensure all optical connectors have a reflectance value better than -50 dB to prevent severe backreflection into the transmitter.