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The early AC electric multiple units were referred to by a two-letter code. This was adapted for the DC third-rail system that was adopted by the Southern Railway, with units being given a three-letter code (sometimes two letters) prefixed by the number of cars in each unit, e.g. 4SUB for a four-car suburban unit.
The Smith chart (sometimes also called Smith diagram, Mizuhashi chart (水橋チャート), Mizuhashi–Smith chart (水橋スミスチャート), [1] [2] [3] Volpert–Smith chart (Диаграмма Вольперта—Смита) [4] [5] or Mizuhashi–Volpert–Smith chart), is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio ...
A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.
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2 2 1 0 0 0 OTU3 40 43 Transports an OC-768 or STM-256 signal or a 40 Gigabit Ethernet signal. [5] 32 16 4 3 1 1 0 0 OTU3e1/2 [6] 41 44.5 develop for transport of 10G LAN PHY, and one for 10G WAN PHY, over SDH and OTN. 32 16 4 3 1 1 0 0 OTU50 50 52.8 Transports a 50 Gigabit Ethernet signal 40 20 5 5 2 1 1 0 OTU4 100 111.8
The SI unit of electrical current. Ampère's circuital law The mathematical relation between the integral of the magnetic field over some closed curve to the current passing through the region bound by the curve. Ampère's force law The mathematical relation between the force between two current carrying conductors and the current flowing in them.
Class 205, no. 205032 at London Bridge on 15 August 2003, with a service to Uckfield.This unit is now preserved on the Caledonian Railway.. The British Rail Class 205 diesel-electric multiple units were built by BR at Eastleigh from 1957 to 1962, and in service for 47 years from BR Southern Region to Connex South Central and finally to the Southern franchise.
A time–distance diagram is a chart with two axes: one for time, the other for location. The units on either axis depend on the type of project: time can be expressed in minutes (for overnight construction of railroad modification projects such as the installation of switches) or years (for large construction projects); the location can be (kilo)meters, or other distinct units (such as ...