Section-A: Introduction to telegraphy, single and double current telegraphy, teleprinters. VFT and carrier telegraphy, introduction to telegraphy, manual switching system, electromechanical switching strowger and EMD systems, electronic switching, Read relays, basic impulsing circuits, uniselectors, group selectors and final selectors; trunking diagram - strowger system and EMD systems; Distribution frames testing and protection of telephone lines, traffic calculation, introduction to network planning.
Section-B: Transmission principles, power levels, attenuation and delay distortions, wireless telephony, carrier telephony, repeater, SBB transmitters and rEEEivers, high accuracy crystal lattice filters, Introduction to VHF and UHF systems.
(a) Data Communications & Networking, 4th Edition,Behrouz A. Forouzan.
(b) Modern Digital And Analog Communications Systems B. P. Lathi 3rd Ed.
(c) Principles of Electronic Communication System 4th Edition by Louis Frenzel.
(d) Digital-telephonythird-edition_john-c-bellamy.
(e) Modern-Digital-and-Analog-Communications-Systems-B-P-Lathi-Solutions-Manual.