WBBSE Madhyamik Telecom (Vocational) case studies
WBBSE Madhyamik Telecom (Vocational) · Put your knowledge to work in context.
The WBBSE Madhyamik Vocational Telecom course is a Class 10 vocational subject offered by the West Bengal Board of Secondary Education alongside the regular Madhyamik subjects. It introduces students to the telecom trade rather than to engineering-level theory: how a call or a data packet travels, what copper and optical fibre cable do, how mobile and broadband services are built, how equipment is installed and maintained, and how a customer-facing technician behaves on site. The WBBSE Madhyamik Telecom (Vocational) case studies are 5 cases and about 3,878 words.
1GPON Link That Works at Night but Drops Every Afternoon
An ISP is commissioning a GPON link from its block exchange to a gram panchayat office 24 km away. The OLT PON port launches +3 dBm and the ONT needs at least −27 dBm, giving a 30 dB optical budget; company policy reserves 3 dB for ageing and repair, so design loss must stay below 27 dB.
801 words, about 4 min2ADSL Customer with Rain-Related Sync Drops and a Refund Demand
A customer on an 8 Mbps ADSL2+ plan calls to say the internet is 'useless': a speed test on his phone shows 1.8 Mbps, and the modem drops sync for a few minutes whenever it rains. The line is 3.8 km from the DSLAM.
791 words, about 4 min3Village Coverage Complaint, Weak RSRP and Evening Congestion
An operator's 4G site serves a village from a 30 m tower 2.8 km away. The sector antenna is downtilted 4° and its azimuth is aimed 30° east of the village centre.
745 words, about 4 min4Electrolyte Spill in a Battery Room with Failed Ventilation
During preventive maintenance at a rural exchange, a technician must top up electrolyte in a 24-cell flooded lead-acid battery bank (48 V, 600 Ah) that backs up the optical transmission equipment. The battery room's forced ventilation has been out of service for two months, and the hydrogen sensor was last calibrated two years ago.
766 words, about 4 min5Cable Operator Evaluating a Broadband Franchise
A cable TV operator with 150 homes in a small town wants to become an authorised broadband franchisee of a national ISP. The terms are: one-time franchise fee ₹1,00,000; refundable bank guarantee ₹50,000; equipment (OLT card, switches, routers, splicing kit) ₹3,00,000; committed monthly bandwidth of 100 Mbps at ₹30,000.
775 words, about 4 min