Punjab PSEB Sr. Sec. NSQF Telecom (Optical Fibre Technician) study guide
Punjab PSEB Sr. Sec. NSQF Telecom (Optical Fibre Technician) · Work through your exam, one topic at a time.
The Punjab School Education Board (PSEB) offers an NSQF-aligned Senior Secondary vocational qualification in Telecom with an Optical Fibre Technician specialisation. It is a school-level vocational credential: students typically take it alongside or instead of conventional +2 elective subjects, and it signals that the holder has been trained in the practical craft of building and maintaining fibre-optic links rather than only in general science. The Punjab PSEB Sr. Sec. NSQF Telecom (Optical Fibre Technician) study guide has 9 sections and about 2,962 words.
01Optical Fibre Fundamentals and Principles of Light Transmission
Optical fibre fundamentals and principles of light transmission are tested through questions on total internal reflection, numerical aperture, modes, attenuation windows and dispersion. A fibre guides light by total internal reflection when core refractive index n1 exceeds cladding n2 and the ray angle at the core–cladding boundary exceeds the critical angle.
329 words, about 2 min02Optical Fibre Cables, Types, and Colour Coding
Optical fibre cables, their construction types and the 12-colour fibre code are tested through cable-selection scenarios and colour-counting questions. Loose-tube cable: fibres in gel-filled tubes around a central strength member, with aramid yarn and HDPE sheath; good for outside plant.
311 words, about 2 min03Tools, Equipment, and Safety Practices in OFC Work
Tools, equipment and safety practices in OFC work are tested through tool-selection, cleaning, laser-safety and glass-shard scenarios. Basic kit: fibre stripper, precision cleaver, fusion splicer, splice sleeves, heat oven, OTDR, optical power meter, stable light source, VFL (650 nm), connector inspection scope, one-click cleaner, lint-free wipes and 99% IPA.
353 words, about 2 min04Fibre Splicing (Fusion and Mechanical) and Connectorisation
Fibre splicing and connectorisation are tested through preparation steps, arc settings, connector polish types and loss-budget calculations. Fusion splicing sequence: strip 30–40 mm of coating, clean with IPA, cleave 10–16 mm with angle <0.5°, load into splicer, set arc for fibre type, fuse, inspect estimated loss, proof-test, fit sleeve, heat.
329 words, about 2 min05OFC Laying, Ducting, Aerial and Underground Installation
OFC laying, ducting, aerial and underground installation are tested through route engineering, pulling limits, bend radius, duct occupancy and slack calculations. Underground: trench to the depth specified in the route drawing and local authority requirement, lay HDPE duct (commonly 40/33 mm), maintain duct continuity, install draw pits and joint chambers, place warning tape and route markers.
325 words, about 2 min06Testing, Measurement, and Fault Localisation (OTDR, Power Meter, VFL)
Testing, measurement and fault localisation are tested through instrument setup, OTDR trace interpretation, loss measurement and distance-to-fault reasoning. OTDR sends pulses and measures Rayleigh backscatter and Fresnel reflections.
358 words, about 2 min07Optical Network Termination, FTTH, and Customer Premises Installation
Optical network termination, FTTH and customer premises installation are tested through PON architecture, optical power budgets, ONT checks and handover practice. GPON (ITU-T G.984): 2.488 Gbit/s downstream at 1490 nm, 1.244 Gbit/s upstream at 1310 nm; 1550 nm may carry video overlay; 1625 nm is used for in-service OTDR testing through a filter.
334 words, about 2 min08Maintenance, Restoration, and Documentation of Optical Networks
Maintenance, restoration and documentation are tested through planned-maintenance tasks, fault-response sequence and the records that make future faults easier to fix. Preventive maintenance: route patrol, chamber inspection, OTDR baseline at 1310/1550 nm, power-level checks, connector cleaning, spare-fibre and spare-card checks, battery and UPS checks.
326 words, about 2 min09Employability Skills, Entrepreneurship, and Workplace Communication
Employability skills, entrepreneurship and workplace communication are tested through customer interaction, team handover, costing and professional documentation scenarios. Communication: listen actively, use plain language, confirm understanding, and avoid unexplained jargon.
297 words, about 1 min