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.

2 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. 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.

3 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.

4 (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. 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.

5 (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.

6 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.

7 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. 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.

8 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.)

9 Part Numbers)ThicknessWireUse with 14B1-AWrapping Tool(Inches)GaugeWrapping thru .03222 & thru .032263700617611-2 JACK SCHEMATICS