single-wire line
51Asymmetric Digital Subscriber Line — (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It does this by utilizing frequencies that are not used by a voice… …
52IRT Flushing Line — The 7 and 7 Express trains serve the entire IRT Flushing Line at all times Overview Type Rapid transit …
53Maginot Line — Ligne Maginot Part of Maginot Line Eastern France …
54Sentencing (The Wire episode) — Infobox The Wire episode caption = episode name = Sentencing episode no = 13 epigraph = All in the game. Traditional West Baltimore teleplay = story = writer = David Simon and Ed Burns director = Tim Van Patten guest star = see below prod code =… …
55Optical ground wire — An optical ground wire (also known as an OPGW or, in the IEEE standard, an optical fiber composite overhead ground wire) is a type of cable that is used in the construction of electric power transmission and distribution lines. Such cable… …
56Market–Frankford Line —      Market–Frankford Line Market–Frankford Line train departing 52nd Street stati …
57High bit rate Digital Subscriber Line — (HDSL) was the first DSL technology to use a higher frequency spectrum of copper, twisted pair cables. HDSL was developed in the USA, as a better technology for high speed, synchronous circuits typically used to interconnect local exchange… …
58Digital subscriber line access multiplexer — A Digital Subscriber Line Access Multiplexer (DSLAM, often pronounced dee slam ) allows telephone lines to make faster connections to the Internet. It is a network device, located in the telephony exchanges of the service providers, that connects …
59Rjukan Line — Infobox rail line name = Rjukan Line nativename = Rjukanbanen caption = SF Ammonia , at Mæl, where the railway cars were ferried across Tinnsjø type = Railway system = status = Heritage start = Rjukan Station end = Mæl Station stations = 5 open …
60Charing Cross (Northern Line) tube crash — The Charing Cross (Northern Line) tube crash occurred at 08:32 hours on 10 March 1938, when two Northern Line trains collided near Charing Cross (now Embankment). Twelve people were slightly injured. The cause was a wrong side failure of the… …
