Panel Call Indicator, or PCI, is a form of signalling used between two telephone offices. It was also originally called Relay Call Indicator (RCI). Originally...

U.S. economic indicator based on trucking fuel consumption Per capita income Equitable PCI Bank, a Philippine bank Panel call indicator, telephone signalling...

A fire alarm control panel (FACP), fire alarm control unit (FACU), fire indicator panel (FIP), or simply fire alarm panel is the controlling component...

switches and only a few manual switchboards, Panel Call Indicator (PCI) signaling transmitted the called number to the "B" Board Machine Incoming operator...

standard panel used for flying in instrument meteorological conditions (IMC) for the next 20 years. They were: altimeter (feet) airspeed indicator (knots)...

dialed digits. An early form called Panel Call Indicator Pulsing used quaternary pulses to set up calls between a panel switch and a manual switchboard...

used as a performance instrument when the attitude indicator has failed. This is called "partial panel" operations. It can be unnecessarily difficult or...

in the U.S. in 1973. This system, similar but distinct from the panel call indicator of the 1920s and automatic number identification of the 1940s, which...

The horizontal situation indicator (commonly called the HSI) is an aircraft flight instrument normally mounted below the artificial horizon in place of...

The attitude indicator (AI), also known as the gyro horizon or artificial horizon, is a flight instrument that informs the pilot of the aircraft orientation...

an operator when an outside call arrived from an automated dial exchange; this panel call indicator or coded-call indicator working would have made them...

The cockpit of an aircraft contains flight instruments on an instrument panel, and the controls that enable the pilot to fly the aircraft. In most airliners...

the airstream by ram pressure due to the speed of the aircraft. It may be called an air driven generator (ADG) on some aircraft. Modern aircraft generally...

attention towards that third AI, or perhaps to another instrument called the turn and bank indicator, just five seconds before the aircraft impacted the sea. The...

the essence of mind and pattern. Basic Books. p. 569. ISBN 978-0-465-04566-2. Wikimedia Commons has media related to Blinkenlights. DEC indicator panels...

A dashboard (also called dash, instrument panel or IP, or fascia) is a control panel set within the central console of a vehicle, boat, or cockpit of an...

compass display in the instrument panel, but not necessarily the gyroscopic Heading Indicator. The Heading Indicator can be combined with information from...

Corporation in 1912. The autopilot connected a gyroscopic heading indicator, and attitude indicator to hydraulically operated elevators and rudder. (Ailerons...

equipped with electronic displays (CRT or LCD). A mechanical instrument panel is likely to preserve its last indications, but this is not the case with...

A volume unit (VU) meter or standard volume indicator (SVI) is a device displaying a representation of the signal level in audio equipment. The original...

Liver function tests (LFTs or LFs), also referred to as a hepatic panel or liver panel, are groups of blood tests that provide information about the state...

machine's internal registers and memory. The front panel usually consisted of arrays of indicator lamps, digit and symbol displays, toggle switches, dials...

Inlet cones (sometimes called shock cones or inlet centerbodies) are a component of some supersonic aircraft and missiles. They are primarily used on ramjets...

the electromechanical crossbar switch to implement the topology of the panel switching system of the 1920s. The first No. 1 Crossbar was installed in...

wired in and include a control panel. Wireless activators are common during construction. When a fire pull station or call point is activated, codes usually...

burst at much higher than the marked burst pressure. Blowout panels, also called blow-off panels, areas with intentionally weakened structure, are used in...

On some older diesel engined-equipment, a small gasoline engine (often called a "pony engine") was used instead of an electric motor to start the main...

wear. Indicator light Most modern monitors have two different indicator light colors wherein if video-input signal was detected, the indicator light is...

Retrieved 2016-10-06. Clark, E. H. (December 1929). "Evolution of the Call-Indicator System" (PDF). Bell Laboratories Record. 8 (5): 171–173. Archived (PDF)...

radiotelephony, radiotelegraph, radioteletype (RATT), air-to-ground signalling (panel signalling), and other forms of communications used by the armed forces...