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A bus coupler is a device which is used to couple one bus to the other without any interruption in power supply and without creating hazardous arcs. A bus coupler is a breaker used to couple two busbars to perform maintenance on other circuit breakers associated with that busbar. It is achieved with the help of a circuit breaker and isolators.
Both ends of the bus, whether it includes one coupler or a series of couplers connected together, must be terminated (in accordance with MIL-STD-1553B) with "a resistance, equal to the selected cable nominal characteristic impedance (Zo) ± 2.0 percent."
At the two ends of the bus, resistors connect between the positive (high) and negative (low) signal wires either in internally terminated bus couplers or external connectorized terminators. The MIL-STD-1553B bus must be terminated at both ends to minimize the effects of signal reflections that can cause waveform distortion and disruption or ...
On a standard-gauge railway, the nominal mounting height for the coupler (rail top to coupler center) is 33 inches (838 mm), with a 34 + 1 ⁄ 2 ± 1 inch (876 ± 25 mm) maximum height on empty cars and 31 + 1 ⁄ 2 ± 1 inch (800 ± 25 mm) minimum height on loaded cars.
ADK: 21.09 m (69 ft 2 in) over couplers ADB: 16.66 m (54 ft 8 in) over couplers: Width: 2.74 m (9 ft 0 in) Height: 3.92 m (12 ft 10 in) Floor height: 1.1 m (3 ft 7 in) Entry: 1.1 m (3 ft 7 in) Doors: Air-operated sliding doors, 2 pairs each side (ADK), one pair each side (ADB), 0.915 m wide: Maximum speed: 90 km/h (56 mph) Weight
Although an early wheelchair-friendly High-floor bus with a low step-entrance, capable of kneeling and having the option of being fitted with a wheelchair ramp for wheelchair access called the Wright Endurance was introduced in 1992, its successor from all of its future bus designs; the low-floor buses were first phased into the UK in 1994 ...
They've been knocking on the door in the tournament and are due for the breakthrough while squeaking past the Chiefs and winning a high-scoring affair vs. the Lions." NFL playoff schedule
The Janney coupler, later the Master Car Builders Association (MCB) coupler, [19] now the Association of American Railroads (AAR) coupler, is also commonly known as a buckeye, knuckle, or Alliance coupler. The AAR/APTA TypeE, TypeF, and TypeH couplers are all compatible Janney couplers, but used for different rail cars (general freight, tank ...