FAX: 773 792-2129 79 - Switchcraft

1 Switchcraft , INC. 5555 N. Elston Ave. Chicago, IL 60630 79 JACKS AND PLUGSFAX: 773 792-2129 JACKS AND PLUGSDIMENSIONS ARE FOR REFERENCE ONLYInch(mm)JACK SCHEMATICSJACK SCHEMATICSC ircuit Types:Jacks normally have through circuits, shunt circuits, and/or isolated switching circuits, either individually orin various combinations. The chart below shows schematics of39 common jacks - many more combinations are possible, butthese are the most commonly used. A basic description of theswitching action of each jack accompanies each Identification:Military specifications covering phonejacks use a special code to describe jack functions. Jackschematic descriptions are coded J-1 through J-13 (as appropriate) to coincide with Federal Item Identification Guides for Supply Cataloging. One or more groups of suffixnumbers/letters identify isolated switching circuits identify the switching by industry recognized notation, , 1-A, 1-B, 1-C, 1-D, etc.

2 See chart SCHEMATICS NotationMeaning1-AOne, SPST switching circuit. Also known as NO (normally open) or make , SPST switching circuit. Also known as NC (normally closed) or break , SPDT switching circuit. Also known as transfer or break before make , SPDT switching circuit. Also known as make before break open circuit. (J1.)Single closed circuit,Single closed circuit. (J4).Double open circuit. (J2).Single open common. (J3).Isolated switching make circuit. (J1-1-A).Transfer circuit. (J5).Tip closed, ringTip closed, ring openSingle open closed circuit,open. (J10).(common to sleeve). (J6).Isolated switchingring common to break circuit. (J1-1B).sleeve. (J13).Single closed. IsolatedDouble closedSingle closed closed open make circuit. (J7).Isolated switchingIsolated switchingIsolated switchingcircuit. (J4-1A).transfer circuit. (J4-1C). break circuit. (J7-1B).transfer circuit. (J2-1C).NOTE:Number indicates the quantity of circuit - 2-A means 2, A locations shown on jack schematics do not necessarily coincide with physical locations on jacks.

3 Not all circuit types available on all open closed circuitSingle closed circuit Single open open switching Isolated switching make beforeIsolated switchingIsolated switchingseparate break and break circuit. (J4-1B). break . (J8).transfer circuit. (J1-1C). make circuits (J2-1A-1B).(J2-1A).Double open closed closed circuitSingle open closed switching Isolated switchingplus make beforeIsolated switching Isolated switchingseparate make make circuit on ring break . Isolatedseparate transfer and break circuit. Sleevecircuits on both tip and spring. (J7-1A).switching make make to isolatedring. (J2-2A).before break (J1-1A-1C).switching circuit (J8-1D).(J4-1B).JACKS AND Registered trademark of Switchcraft , : Contact your Switchcraft Representative for price and deliveryPHONE: 773 792-2700 JACKS AND PLUGSDIMENSIONS ARE FOR REFERENCE ONLYInch(mm)JACK SCHEMATICSJACK SCHEMATICSS ingle closed closed; ring openSingle open (tip)Double jack,Single open circuit Isolated switching circuits.

4 Isolatedcircuit and single closed2-conductors on each make before make before break switching two make (ring) circuit. (J9).side. Tip circuits cross break . (J11).circuit. (J4-1D).circuits and one break shunted; commoncircuit. (J10-2A-1B).sleeve. (J12).Tip closed; ring closedDouble closed closed open open IsolatedSeparate sleeveIsolated switching Isolated switching Isolated switching switching break break make make make and onebefore make circuit. break closed closed; ring openDouble closed open switching circuits. IsolatedIsolated switching Isolated switching One make and oneswitching One Two make circuits. break before break circuit. make circuit. make MATING DATANOTE:See tables for jack/plug mating dataSPECIFYING NOTE:Due to assembly variations containing components (solder lugs, wire-wrapping terminals, or both), these Jack PanelAssemblies are available on special order only. Contact can build complete Jack Panel Assemblies withjacks, lamp jacks and switches with wire-wrapping terminals.

5 Ifdesired, components with solder lugs and wire-wrapping terminals can be installed in the same TERMINAL DESIGNJack springs with integral wire-wrapping terminals are made ofspecial copper alloy for maximum work-life with excellent resistance to corrosion. Shank of terminal accommodates amaximum of three wire connections. Tini-Telephone phonejacks, lamp jacks and switches with wire-wrapping terminalshave slightly higher stack due to greater spacing required forwrapping tool access. Actuator springs and ground lug terminals are .704" long by .060" TERMINATIONSWIRE-WRAPPING CONNECTIONSUse the chart below as a guide to recommended tools to be used with varying terminal thickness and wire Wire-Wrapping ToolTerminal(Gardner-Denver Co. Part Numbers)ThicknessWireUse with 14B1-AWrapping Tool(Inches)GaugeWrapping thru .03222 & thru .032263700617611-2 JACK SCHEMATICS