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2. Electrical telegraph - Wikipedia

   en.wikipedia.org/wiki/Electrical_telegraph

   The 1857 cable only operated intermittently for a few days or weeks before it failed. The study of underwater telegraph cables accelerated interest in mathematical analysis of very long transmission lines. The telegraph lines from Britain to India were connected in 1870. (Those several companies combined to form the Eastern Telegraph Company in ...

3. Telephone line - Wikipedia

   en.wikipedia.org/wiki/Telephone_line

   Utility pole with electric lines (top) and telephone cables. Fixed telephone lines per 100 inhabitants, 1997–2007. Cross section of telephone cable of 1,800 twisted pairs, 1922. A newer telephone cable used to carry telephone lines from several customers. A telephone line or telephone circuit (or just line or circuit industrywide) is a single ...

4. Telecommunications cable - Wikipedia

   en.wikipedia.org/wiki/Telecommunications_cable

   Telecommunications cable is a type of guided transmission medium. Telecommunications are based on transmitting and receiving modulated waves/signals through a medium. Types of telecommunications cable include: [1] [2] electrical cables when electric current is carried; transmission lines and waveguides when electromagnetic waves are transmitted; optical fibers when light signals are transmitted.

5. Wire gauge - Wikipedia

   en.wikipedia.org/wiki/Wire_gauge

   Each notch is stamped with a number, and the wire or sheet, which just fits a given notch, is stated to be of, say, No. 10, 11, 12, etc., of the wire gauge. The circular forms of wire gauge measurement devices are the most popular, and are generally 3 + 3 ⁄ 4 inches (95 mm) in diameter, with thirty-six notches; many have the decimal ...

6. Utility pole - Wikipedia

   en.wikipedia.org/wiki/Utility_pole

   A utility pole, commonly referred to as a transmission pole, telephone pole, telecommunication pole, power pole, hydro pole, telegraph pole, or telegraph post, is a column or post used to support overhead power lines and various other public utilities, such as electrical cable, fiber optic cable, and related equipment such as transformers and ...

7. Standard Telephones and Cables - Wikipedia

   en.wikipedia.org/wiki/Standard_Telephones_and_Cables

   Standard Telephones and Cables Ltd (later STC plc) was a British manufacturer of telephone, telegraph, radio, telecommunications, and related equipment. During its history, STC invented and developed several groundbreaking new technologies including pulse-code modulation (PCM) and optical fibres .

8. Telegraphy - Wikipedia

   en.wikipedia.org/wiki/Telegraphy

   A cablegram was a message sent by a submarine telegraph cable, [4] often shortened to "cable" or "wire". The suffix -gram is derived from ancient Greek: γραμμα ( gramma ), meaning something written, i.e. telegram means something written at a distance and cablegram means something written via a cable, whereas telegraph implies the process ...

9. Category:Wire gauges - Wikipedia

   en.wikipedia.org/wiki/Category:Wire_gauges

   See also , a chart comparing all known wire gauges to each other. Pages in category "Wire gauges" ... Wire gauge; 0–9. 10603; A. American wire gauge; B. Birmingham ...