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Topic: Simplex circuit

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	Telecommunications
		When you look at the circuit drawings, it is easier to use symbols to represent the actual components than it is to try and draw a key, sounder, circuit or battery each time.
		Although simplex circuits do not acknowledge their messages directly, there is a "cause and effect" type of feedback.
		Circuit (or Transmission Path) - This is the medium that conducts the message from the sender to the receiver.
	www.informationfactory.com /btsec1.htm (5328 words)

	FDA warning label on joint cement preempts tort claim - Brooks v. Howmedica, Inc., 273 F.3d 785 (8th Cir. 2001)
		Simplex was approved by the FDA for use in total hip replacement surgeries in 1971.
		Simplex package labeling was subject to meticulous and ongoing federal regulation from the product's approval in 1971 through the time of Brooks' exposure to it.
		Caution should be exercised during the mixing of [Simplex's] two components to prevent excessive exposure to the concentrated vapors of the monomer which may produce irritation of the respiratory tract, eyes, and possibly the liver.
	biotech.law.lsu.edu /cases/devices/brooks_v_howmedica.htm (9258 words)

	Duplex vs. Simplex
		Simplex links are built so that the transmitter (the one talking) sends a signal and it's up to the receiving device (the listener) to figure out what was sent and to correctly do what it was told.
		You must use connectionless protocols with simplex circuits as no acknowledgement or return traffic is possible over a simplex circuit.
		A duplex circuit can be created by using two separate physical connections running in half duplex mode or simplex mode.
	www.inetdaemon.com /tutorials/theory/concepts/duplex_vs_simplex.shtml (402 words)

	Simplex Branch Circuit Fuse Protection
		Since the elements are electrically live, it is possible for a foreign object to penetrate the element array and create a short circuit of adjacent elements or a short to ground.
		Simplex virtually eliminates the dangers of short circuit through the use of branch circuit fuse protection of the load elements.
		A Simplex Load Bank is divided into branch circuits of not more than 50 KW each.
	www.simplexdirect.com /LoadBank/fuses.html (164 words)

	Data Communication and Networking
		Simplex is one way transmission, it uses one circuit in one direction only such as in radio or TV transmission.
		Multiplexors is transparent, when the circuits are multiplexed at one end and demultiplexed at the other, each user's terminal or microcomputer thinks it has its own separate connection to the host computer.
		Selecting the transmission speed for the multiplexed circuit is based on a statistical analysis of the usage requirements of the circuits to be multiplexed.
	www.angelfire.com /ne/BadriShrestha/Datacommunication.html (4046 words)

	Ship-Shore Circuits
		Simplex is a method of operation that provides a single channel or frequency on which information can be exchanged (figure 1-12).
		Simplex communications operation is normally reserved for UHF and those ships that do not have sufficient equipment for duplex operation.
		Semiduplex communications circuits, used primarily on task force/task group/ORESTES, are a combination of the simplex and duplex modes.
	www.tpub.com /inch/8.htm (487 words)

	Simplex circuit: Definition and Links by Encyclopedian.com
		...Simplex circuit Simplex circuit In telecommunication, the term simplex circuit...1.
		A circuit that provides transmission in one direction only.
		Deprecated definition: A circuit using ground return and affording communication in either direction, but in only one direction at a time.
	www.encyclopedian.com /si/Simplex-circuit.html (185 words)

	Modulators and Hybrids
		The circuits that made this possible were those that shifted frequencies, those that separated different frequency bands, and those that could separate a full-duplex channel into transmitting and receiving channels, as well as their inverses, which happen to be performed by the same circuits.
		A simplex circuit is something quite different: the two wires of, say, a telephone circuit, are used as one wire, with a ground return.
		In their circuit, the voltage drop across the 600Ω resistor is opposite to that of the transformer winding, and they do compensate to some degree, but by no means well enough.
	www.du.edu /~etuttle/electron/elect61.htm (3177 words)

	Simplex made Simple
		The unidirectional circuit case is consistent with this behaviour, and is identical, from a routing perspective to marking the cost of a link as infinite (unreachable) in one direction, while maintaining a normal link metric to the opposite direction.
		Once the physical circuit was restored it took a further 10 seconds for the BGP session to enter an active state and commence loading routes into the remote table.
		This implies that to ping across the simplex circuit, the ping packet must transit a third party network to complete the loop, so that ping-based measurements of the overall performance of the simplex circuit are actually measuring the performance of a larger traffic loop.
	www.potaroo.net /ispcolumn/2000-03-simplex.html (3068 words)

	Ham-Shack.com : Simple As Simplex
		This is the frequency the other station uses to transmit to the repeater, and if you hear his or her signals there you should be able to use simplex.
		Another plus to using simplex rather than a repeater is that communication on simplex offers a degree of privacy impossible to achieve on a repeater.
		Each band has a designated national FM simplex calling frequency, which is the center for most simplex operation.
	www.ham-shack.com /simplex.html (336 words)

	[No title]
		Simplex would require more resources for class 2 as you'd need two state machines but the logic is less complex.
		Given class 2 "people" can live with a simplex model the next question is how large a shift is it to move to simplex.
		Open issues: Straw poll half-duplex versus simplex: "an advantage for one implies a disadvantage for the other" Advantages Simplex Half-duplex fewer credit counters can distinguish ACK versus data easier to implement Poll: direct Jeff Williams to change half-duplex to simplex in the MCM document.
	www.t10.org /ftp/t11/document.98/98-621v0.txt (1171 words)

	Simplex communication - Wikipedia, the free encyclopedia
		Simplex communication is a name for a type of communication circuit.
		According to the ITU-T definition, a simplex circuit is one where all signals can flow in only one direction at a time.
		According to the ANSI definition, a simplex circuit is one where all signals can flow in only one direction.
	en.wikipedia.org /wiki/Simplex_communication (238 words)

	Onsite Wastewater System Control Functions, Hardware, and Operation
		There are a number of different types of control panels, including simplex panels (like seen in Figure 2) that control one pump, duplex panels that control two pumps, and multiplex panels that control more than two pumps.
		In simplex pump systems, an auto-reset alarm is preferred so when the float deactivates, the audible portion of the alarm is automatically reset.
		Both pumps may be fed from the same power supply and the pilot (control circuit), and the alarm must be on the same circuit in order for the alarm condition to activate the reserve pump.
	www.cet.nau.edu /Projects/WDP/resources/Controls.html (1769 words)

	The Simplex Legacy Demonstration
		A custom circuit which allows the two computers to be simultaneously connected to the inverted pendulum.
		The simplex system is then initiated and given control of the inverted pendulum.
		Since the Simplex Architecture treats its controllers as fl boxes, the internal details of the legacy application are not significant.
	www.sei.cmu.edu /simplex/demonstrations/legacy.html (938 words)

	Simplex Short Circuit Protection and Load Elements
		The "Powr-Rod" element consists of a nickel-chromium resistance wire which is electrically insulated and sealed within a metallic sheath.
		Since the element is electrically dead on the outside, it reduces the hazard of electric shock to personnel and eliminates the danger of short circuit of the elements by foreign object penetration.
		Simplex Load Banks utilize the UL Recognized, “Powr-Web” load element.
	www.simplexdirect.com /LoadBank/circuit.html (508 words)

	Simplex VHF operating
		The classic two meter FM simplex frequencies are 146.52, the national simplex calling frequency and the secondary frequencies of 146.55 and 146.58.
		Simplex is great fun and all sorts of tricks extend range and coverage besides the obvious one of being high and clear with
		Conducting nets on simplex is a bit trickier than on a powerful repeater, but it is a critical skill for emergency operations.
	www.chem.hawaii.edu /uham/simplex.html (894 words)

	TelecomCareers.Net - Dictionary S (Site not responding. Last check: 2007-10-13)
		ITU simplex is a path which can operate in either direction, but only one direction at a time.
		It occurs when the sum of the gains in the circuit exceeds the sum of all the circuit losses and includes the losses from input port to output port of the hybrids.
		The sequence of switches which are involved in the completion of a circuit path from an originating station to a destination station.
	www.telecomcareers.net /Resources/Dictionary/diction_s.htm (1943 words)

	Telecom Dictionary O: Phone Service Definitions
		Note: Duplex operation may be achieved by simplex operation of two or more simplex circuits or channels.
		Note: Half-duplex operation may occur on a half-duplex circuit or on a duplex circuit, but it may not occur on a simplex circuit.
		Note: An open circuit may be intentional, as in a switch, or may constitute a fault, as in a severed cable.
	www.higginsinternational.com /Definitions/telecom_dictionary_o.html (10082 words)

	Simplex Kits
		Useful circuit can be used at parties or for serious lie detection.
		Great circuit for alerting web users to disconnecting modem, indicating a busy line, show incoming calls with out ringing.
		Circuit uses a VARICAP diode for tuning stability and operates from 12 to 15 VDC.
	www.amazing1.com /simplex.htm (745 words)

	Hardwire Electrical Outlets :: Models & Pricing :: Bretford
		The receptacles are marked 1, 2, 3, or 4 to designate the circuit that is activated when it is installed into the power harness.
		Circuits 1, 2, and 3 all share a common ground, while circuit 4 has a separate ground of its own and a neutral wire.
		Marked 1, 2, 3, or 4 to designate the circuit that is activated when it is installed into the power harness.
	www.bretford.com /products/pricing.asp?id=132 (197 words)

	Simplex circuit Information - Simplex circuit
		Deprecated definition: A circuit using Simplex circuit ground return and affording communication in either direction, but in only one direction at a time.
		The design and construction of electronic circuits to solve practical problems is part of the fields of electronic engineering, and the hardware design side of computer engineering.
		The study of new semiconductor devices and their technology is sometimes considered as a branch of physics.
	www.inanot.com /Ina-Electronics_Topics_S_-_Si-/Simplex_circuit.html (154 words)

	American Manufacturing Company -- Simplex Equalization Controls (SEPR, SEPRT, SEQ)
		The control system shall be equipped with a timer override circuit to manage peak flows and excess water use.
		If the water level continues to rise enough to overcome the "Timer Override" (third) float and the override selector switch is on, the pump shall be activated, regardless of the time clock position.
		The pump will continue to run until deactivated by the override circuit, at which time the pump will shut off and the normal pumping cycle shall resume.
	www.americanonsite.com /american/catalog/serset.html (327 words)

	The Phantom Circuit
		If the earth is used to complete the circuit, it is possible to add a second function, such as a Morse telegraph line, to the single telephone pair without affecting the operation of the telephone circuit.
		If two simplex circuits are combined as shown in Figure 3, a third telephone circuit can be obtained over two pairs of wires.
		If a telephone company was not happy with a gain of one circuit from two pairs, they could always take two phantom circuits, additional repeat coils and "phantom the phantoms" to obtain seven circuits over four pairs of wire.
	www.telephonecollectors.org /singwire/phantom/phantom.htm (692 words)

	Larus Corporation - Network Interface Units
		The Larus line of DS1 connectors provides a circuit demarcation network interface capability to all North American standard T1 signaled 24 channel, l.544 Mb/s T1 PCM carrier lines terminated on customer premises.
		It provides circuit demarcation and network interface capability to North American standard T1 1.544 Mb/s PCM carrier facilities terminated on customer premises.
		The connector isolates and terminates a telephone company T1 span line on customer premises and allows looping of the simplex span, when locally powered, as well as selectable signal regeneration.
	www.laruscorp.com /netinter.htm (690 words)

	OilOnline - The Original Online Source for the Oil Industry
		Also, integrated circuits are far smaller and more stable than analog control circuits, with calibration and signal drift much less of a concern when compared to analog potentiometers.
		The major drawback of a simplex circuit is reliability and failure condition as it is not possible to predict the malfunction of transistors, which fail either in the on or off mode.
		Each simplex controller and each controller-to-controller connection is a single point of failure which can drastically reduce plant reliability.
	www.oilonline.com /News/features/aog/20041001.Controll.16051.asp (1195 words)

	E/One Sewer Systems
		The MOD 250 electrical panels are custom designed for use with E/One simplex grinder pump stations.
		They are specified for installations that require an electrical separate from the residence distribution panel.
		As of June 2006, the MOD 250 Simplex** Alarm Panel will only be available on a limited basis; it is being replaced with the E/One Sentry Alarm Panel.
	www.eone.com /au/products/simplexalarm.html (95 words)

	Electronics
		Each workstation should be fitted with one Triplex Power Module with three Simplexes and an Interconnecting Cable.
		Use a suffix -1, -2, -3 to identify the circuits.
		The Convenience Outlet Extension has a pre-mounted Simplex on the plastic end cap of either Spreader with wiring and plug.
	www.electronicclassroom.com /txmas/electronics.htm (510 words)

	Basic System Configuration's (Site not responding. Last check: 2007-10-13)
		Gauge Adapters: allow for quick gauge installations in hydraulic circuits.
		Gauges: monitors pressure and/or tonnage of the hydraulic circuit.
		Remote Control Valves: used to direct hydraulic flow in a circuit.
	www.tksimplex.com /html/basic_system_configuration_s.html (275 words)

	SimplexGrinnell - Fire
		This provides maximum distance between nodes and isolation of signaling circuits between nodes without impacting data throughput.
		Isolation ensures that a short/open condition on a circuit between any two nodes does not affect other circuits.
		If groups of nodes become isolated from the remainder of the network, due to one or more circuit faults, each group will automatically reconfigure its communications and continue to inter-operate.
	www.simplexgrinnell.com /fire/products/autocall/tfxnet.jsp (223 words)

	The Panel Shop: Simplex Motor Controller
		Our simplex motor controller was designed to make it easy for you to order while still giving you flexibility in size and options.
		Fill out our Simplex RFQ form or call us at (506) 455-1925 to request a quote.
		If a duplex or triplex motor control panel is what you need, we can help you there also.
	www.thepanelshop.com /simplex_motor_controller.htm (133 words)

	Selectric, Inc. - Magnetic Starters
		PMR's monitor incoming three phase power and protects against phase loss "single phasing," under voltage "brown outs," and phase reversal "improper sequence." When phase sequence is correct and full line voltage is present on all three phases the internal relay is energized.
		Redundant off float switch is also available with intrinsically safe circuit extensions, where the energy in the float leads is limited by an intrinsically safe relay.
		This timer is used to energize a circuit for a given period of time then shut down.
	www.selectricinc.com /si-p23.htm (1265 words)

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