ISO IEC 2593 pdf download Information technology — Telecommunications and information exchange between systems — 34-pole DTE/DCE interface connector mateability dimensions and contact number assignments
This lnternational Standard specifies the 34-pole connector and the assignment of contactnumbers at the interface between data terminalequipment (DTE) and data circuit-terminatingequipment(DCE)where ITU-iRecommendation v.36 or RecommendationX.21bis together with Recommendation V.10and v.11 are applicable.
NOTE 1An interoperationbetween interfacesdesignedaccording’ toelectricalcharacteristicsspecified in ITU-T Recommendation v.36 and thosespecified in ITU-T Recommendation V.11 is, at least toa limited degree,possible. This can be achieved，forexample, by using a passive adaptor which joins theinterface connectors in accordance with ISo/IEc 2593and lSO 4902, or ISo 4903, respectively.
This lnternational Standardspecifies thedimensions of the connector housing and givesrecommendations for the type of locking device(jack-screw system) and connector shielding.
The following normative documents containprovisions which，through reference in this text,constituteprovisionsofthis lnternationalStandard. For datedreferences，subsequentamendments to,or revisions of，any of thesepublications do not apply. However, parties toagreements based on this International Standardare encouraged to investigate the possibility ofapplying the most recenteditions ofthenormativedocumentsindicatedbelow. Forundated references，the latest edition of thenormativedocument referredtoapplies.Members of lso and IEC maintain registers ofcurrently valid lnternational Standards.
ISO 261:1998,ISogeneral-purpose metricscrew threads- General plan.
lso 4902:1989,Information technology -Data communication-37-poleDTE/DcE interfaceconnectorandcontactnumberassignments.
ISO 4903 : 1989,Information technology —Datacommunication—15-pole DTE/DCEinterfaceconnector andcontactnumberassignments.
ITU-TRecommendation V.10: 1993,Electrical characteristics for unbalanced double-current interchange circuits operating at datasignalling rates nominally up to 100 kbit/s.
ITU-T Recommendation V.11 : 1996,Electrical characteristics for balanced double-current interchange circuits operating at datasignalling rates up to 10 Mbit/s.
ITU-T Recommendation X.21 : 1992，Interfacebetween Data TerminalEquipmentandData Circuit-terminating Equipment forsynchronous operation on public data networks.
ITU-T Recommendation X.21 bis : 1988，Useon public data networks of Data TerminalEquipment (DTE)which is designed forinterfacing to synchronous v-Series modems.
ITU-T Recommendation v.28 : 1993，Electricalcharacteristics for unbalanced double-currentinterchange circuits.
ITU-T Recommendation v.36:1988,Modemsfor synchronous data transmission using 6o-108 kHz group band circuits.
IEC 60807-6:1988，Rectangular connectors forfrequencies below 3 MHz – Part 6: Detailspecification for a range of connectors with size20(7.5A)round contacts having polarizedguides – Fixed solder contact type.
For the purposes of this International Standard,the definitions given in lEC 60050(581) apply. Fortheconvenienceoftheusersof thislnternational Standard , the following definitionsare repeated.
3.1cable adaptor: A part of a connector oran accessory consisting of a rigid housing forattachment to the connector body. ltmayincorporate provision for a cable clamp or sealfor terminating screens and provide shielding toelectrical interference. lt may be straight orangled.
3.2connector housing:Apart ofaconnector into which the insert and contacts areassembled.
3.3contactarrangement: The number,spacing and configuration of contacts in acomponent.
3.4female contact: A contact intended tomake electrical engagement on its inner surfaceand which will accept entry of a male contact.
3.5intermateableconnectors:Twoconnectors are intermateable when they arecapable of being connected electrically andmechanicallybutwithoutregard to theirperformance and intermountability.
3.6jack-screw system: A device comprisinga set of captive screws and nuts used to coupleand uncouple mating components. lt may alsoprovide a polarization facility.
3.7locking device: A feature incorporated incertain components to provide mechanicalretention of their mating part.