A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
Variety of 4 wire smoke detector wiring diagram. A wiring diagram is a simplified traditional pictorial depiction of an electric circuit. It shows the elements of the circuit as streamlined shapes, and the power and signal connections between the devices. A wiring diagram usually offers information regarding...
In general, connect looped 4 wire smoke detectors to feed power and detection loops wiring “in” from the panel side wire, and “out” to the next smoke in line. Many 4 wire smoke detectors are designed so the wiring can connect to the terminals from either direction.
Connecting a 4 wire smoke detector to a wired alarm system is a slightly more complicated process than setting up most other hardwired zones. Several wired connections will need to be made. The setup will also require an end of line resistor and a relay module. Learn more about 4 wire smokes.
The alarm relay contacts of the 4 wire smoke detector are connected to the Class B or Class A zone wiring of the fire alarm system. When alarmed, just like a conventional heat detector, pull station, or waterflow switch, the relay contacts short out the zone wires.
To Describe a 4 wire smoke detector, four wires is really a misnomer. Most 4 wire smoke detectors have 4 screw terminal contacts, but if instead of the 4 screw terminals there are wires, then there are 8 wires. That's 4 pairs of wires. The four contacts or four pairs of wires are: Plus 24 volt power in; Plus 24 volt power out (1 contact, 2 wires)
For 4 wire smoke detector wiring, running an extra 4 conductor wire gives the same effect. The extra run of 4 conductor wire gives us a return path to the panel. The extra run of 4 conductor wire gives us a return path to the panel.
Mount smoke detectors at least 4 inches from wall or on the wall with the top of the detector within 4 inches and 12 inches of the highest point of the ceiling. In multi story units there shall be a detector at each level and shall be placed at the center of the ceiling 24 inches or more higher than the hall are required to have a smoke detector on the hall ceiling and in the bedroom.
On your first 4 wire smoke detector you will wire the terminal to Aux on the main board. The terminal will wire to a PGM terminal. It is common to use PGM 2 here as it gives you a greater current draw than PGM 1, but it is not required to use a particular PGM.
4 wire smokes can be used on any hardwired zone other than zone 1. When a 4 wire smoke goes into alarm, it latches, and in order to reset it, power to the smoke has to be dropped for several seconds. On some older style panels, this was handled automatically by the panel,...