Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 148. Chapters: Telephone, Communications satellite, Submarine communications cable, RS-232, Waveguide, Free-space optical communication, Transmitter, Fax, Data circuit-terminating equipment, Data terminal equipment, LAN switching, Optical time-domain reflectometer, Hybrid coil, Channel service unit, Slave clock, Scrambler, Star coupler, Mode scrambler, Video teleconferencing unit, Bridge-to-bridge station, Adder-subtractor, Data service unit, Loading coil, Alarm sensor, Concentrator, Optical attenuator, Data forwarder, Low-performance equipment, High-performance equipment, Artificial transmission line, Pulse link repeater, Customer office terminal, Aerial insert, Optical fiber, Volta Laboratory and Bureau, GPO telephones, List of international submarine communications cables, Utility pole, Horn antenna, Radio masts and towers, Low noise block-downconverter, British telephone sockets, Telex, Location awareness, Pager, Advanced Telecommunications Computing Architecture, Multi-gigabit transceiver, Intercom, ClearCurve, Satellite modem, Very small aperture terminal, Application Enablement, Avaya Application Server 5300, Optical power meter, Digital Access Carrier System, Wideband Global SATCOM system, Stepping switch, Antenna farm, National HRO, List of domestic submarine communications cables, Stub, Codan, Pantelegraph, Communications server, Hellschreiber, SAF Tehnika, IvanAnywhere, Videocipher, 25-pair color code, Microducts, R-390A, Dual-modulus prescaler, Cable jetting, K-38 trailer, Advanced Mezzanine Card, Nurse call button, S band, BC-348, Radio over Fiber, Feed line, Kingfisher International Pty Ltd, Registered fax, 20-pair colour code, Rake receiver, Console server, Sevsat, Blaw-Knox tower, Optical ground wire, Telautograph, IP PBX, Maritime Broadband, Signal Transfer Point, Safety Confirmation, Master clock, BC-342, Linjes...