1、TIA STANDARD ANSI/TIA-232-F-1997 Approved: September 30, 1997 Reaffirmed: October 11, 2002 Interface Between Data Terminal Equipment and Data Circuit- Terminating Equipment Employing Serial Binary Data Interchange TIA-232-F (Revision of TIA/EIA-232-E) OCTOBER 1997 TELECOMMUNICATIONS INDUSTRY ASSOCIA
2、TION Representing the telemmunications industry in associatiw nith te Electronic Industries Alliance Elertrnis Industries Alliance Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE
3、TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the
4、proper product for their particular need. The existence of such Standards and Publications shall not in any respect preclude any member or non-member of TIA from manufacturing or selling products not conforming to such Standards and Publications. Neither shall the existence of such Standards and Pub
5、lications preclude their voluntary use by Non-TIA members, either domestically or internationally. Standards and Publications are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assume any liability to any patent owner, n
6、or does it assume any obligation whatever to parties adopting the Standard or Publication. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate s
7、afety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-3761-RF1, formulated under the cognizance of the TIA TR-30.2 Subcommittee on DTE-DCE Interfaces and Protocols.) This Document was reaffirmed by the American National
8、 Standards Institute (ANSI) on October 11,2002 and by the TIA. Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 1997 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARD
9、S AND ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) or search online at http:/www.tiaonline.org/standards/searchn_order.cfm All rights reserved Printed in U.S.A. Copyright Electronic Industries Alliance Provided by IHS und
10、er license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE OF DISCLAIMER AND LIMITATION
11、OF LIABILITY The document to which this Notice is affixed has been prepared by one or more Engineering Committees of the Telecommunications Industry Association (“TIA”). TIA is not the author of the document contents, but publishes and claims copyright to the document pursuant to licenses and permis
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13、ction is to administer the process, but not the content, of document preparation in accordance with the Manual and, when appropriate, the policies and procedures of the American National Standards Institute (“ANSI”). THE USE OR PRACTICE OF CONTENTS OF THIS DOCUMENT MAY INVOLVE THE USE OF INTELLECTUA
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19、HE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted
20、 without license from IHS-,-,-LL I N m nl , TIA/EIA-232-F I 4 w - _(-Revision- of EIATIA-232-E) ANSI/ TlAlEIA- 232-F-1997 Approved: September 30, 1997 TIAIEIA STANDARD Interface Between Data Terminal Equipment and Data Circuit- Terminating Equipment Employing Serial Binary Data Interchange OCTOBER 1
21、997 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-232-F-ENGL 3997 D 3234b00 0588583 UT9 W NOTICE TIA/EA Eugineering Standards and Pu
22、blications are designed to serve the public interest through eliminating misundeIstandhgs between manufacturers and purchasers, facilitating interchangeability and impmvement of products, and assisting the purchaser in selecting and obtaining with minimum deiay the proper product for his particular
23、need. Existence of such Standards and Publications shail not in any respect preclude any member or nonmember of TIA/EIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by
24、 those other than TIA/EIA members, whether the standard is to be used either domestidy or intemationaily. Standards and Publications are adopted by Standards institute (ANSI) patent policy. By such action, TIA/= does not assume any liability to any patent owner, nor does it assume any obligation wha
25、tever to parties adopting the Standard or Publication. in accordance with the American National This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropia
26、te safety and health pmctices and to detemine the applicability of regulatory limitations before its use. (From Stanards Proposal No. 3761, formulated under the cognizance of the TIA TR 30.2 Subcommittee on DTE-DCE Interfaces.) Published by -0MMUNICATIONS INDUSTRY ASSOCIATION 1997 Standards and Tech
27、nology Department 2500 Wilson Boulevard Arlington, VA 22201 PRICE Please refer to current Catalog of EIA, JEDEC, and TLA STANDARDS and ENGINEERING PUBLICATIONS or cali Global Engineering Documents, USA and Canada (1-800-8547179) Internationai (30-397-7956) AU rights reserved printed in U.S.A. Copyri
28、ght Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-232-F-ENGL 1777 W 3234b00 0588584 T35 ANSITTIAIEIA-232-F INTERFACE BETWEEN DATA TERMINAL EQUIPMENT AND DATA CIRCUIT- TERMINATING EQU
29、IPMENT EMPLOYING SERIAL BINARY DATA INTERCHANGE (From TIMIA Standard EIAITIA-232-E and Standards Proposal No . 3767 formulated under the cognizance of TIA Subcommittee TR-30.2 on Data Transmission Interfaces.) Contents Page 1 SCOPE 1 1.1 Abstracts 1 1.2 InterFace Configurations . 1 Data Signaling Ra
30、tes 2 I . 3 1.4 Signal Common 2 1.5 SynchronouslNonsynchronous Communication . 2 1.6 1.7 1.8 2 SIGNAL CHARACTERISTICS . 3 2.1 Electrical Characteristics 3 2.2 Protective Ground (Frame Ground) 7 2.3 Shield . 7 3 INTERFACE MECHANICAL CHARACTERISTICS 7 3.1 Definition of Mechanical Interface . 7 3.2 Cab
31、le Length 7 3.3 25-Position Interface Connector . 7 Classes of Service 2 Allocation of Functions . 2 Modes of Operation 3 1 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STDDEIA TIA-Z
32、IZ-F-ENGL 1997 M 3234bOCI 0588585 771 3.4 Alt A 26-Position Interface Connector 8 3.5 Pin Identification . 16 4 FUNCTIONAL DESCRIPTION OF INTERCHANGE CIRCUITS . 17 4 .I 4.2 4.3 4.4 4.4. I 4.4.2 4.4.3 4.4.4 4.4.5 4.4.6 4.4.7 4.4.8 4.4.9 4.4.1 O 4.4.1 1 4.4.12 4.4.13 4.4.14 4.4.15 4.4.16 4.4.17 4.4.18
33、 4.4.19 4.4.20 4.4.21 4.4.22 4.4.23 4.4.24 4.4.25 General 17 Categories 17 Signal Characteristics. General 18 Interchange Circuits . 19 Circuit AB . Signal Common (ITU-T 102) 19 Circuit BA . Transmitted Data (ITU-T 103) 19 Circuit BB . Received Data (ITU-T 104) 20 Circuit CB - Clear to Send (ITU-T 1
34、06) 1 21 Circuit CC - DCE Ready (ITU-T 107) 22 Circuit CE - Ring Indicator (ITU-T 125) . 23 Circuit CF - Received Line Signal Detector (ITU-T 109) . 24 Circuit CG - Signal Quality Detector (ITU-T 1 IO) 24 Circuit CA . Request to Send (ITU-T 105) 20 Circuit CD - DTE Ready (ITU-T 108/1 , 108/2) 23 Cir
35、cuit CH - Data Signal Rate Selector (DTE Source) (ITU-T 11 1) . 24 Circuit CI - Data Signal Rate Selector (DCE Source) (ITU-T 112) 25 Circuit CJ - Ready for Receiving (ITU-T 133) . 25 Circuit CK - Received Energy Present (ITU-T 135) 25 Circuit LL - Local Loopback (ITU-T 141) . 26 Circuit RL - Remote
36、 Loopback (ITU-T 140) 26 Circuit DA - Transmitter Signal Element Timing (DTE Source) (ITU-T 11 3) . 27 Circuit SBA - Secondary Transmitted Data (ITU-T I 18) . 28 Circuit SCA - Secondary Request to Send (ITU-T 120) 29 Circuit SCB - Secondary Clear to Send (ITU-T 121) . 29 Circuit SCF - Secondary Rece
37、ived Line Signal Detector (ITU-T 122) . 29 Circuit TM - Test Mode (ITU-T 142) 27 Circuit DB - Transmitter Signal Element Timing (DCE Source) (ITU-T 114) . 27 Circuit DD - Receiver Signal Element Timing (DCE Source) (ITU-T 115) . 28 Circuit SBB - Secondary Received Data (ITU-T 119) . 29 5 STANDARD IN
38、TERFACES FOR SELECTED COMMUNICATION SYSTEM CONFIGURATIONS 29 5.1 Abstract 29 ii Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-232-F-ENGL 1997 m 3234b00 058858b 808 m ANSITT
39、INEIA-232-F 5.2 Conditions 30 5.3 Configurations 30 5.4 6 Use of Signal Common . 30 RECOMMENDATIONS AND EXPLANATORY NOTES . 30 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.9.1 6.9.2 6.9.3 Classes of Service 30 Noise Considerations . 31 Use of Relays . 32 Circuit Capacitance 33 Test Receivers . 33 Distortio
40、n 33 Line Signals 33 Use of Circuit LL for “Busy Out“ 33 Use of Circuits for Testing 34 Local Loopback 34 Remote Loopback 35 Test Mode 36 Annex A (informative) . 37 A . 1 Interconnecting Cable Characteristics 37 A.l.l Conductor Resistance 37 A.1.2 Capacitive Cable Model 37 A.1.3 Interchange Capacita
41、nce Limit . 37 A . 1.4 Simplified Electrical Equivalent Circuit 37 A.2 Example . 39 Annex B (informative) . 40 . 111 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSITTINEIA-232-F FOR
42、EWORD (This foreword is not part of this Standard) No technical changes have been incorporated into TINEIA-232-F that will create compatibility problems with equipment conforming to previous versions of EIAITIA-232. This standard is a revision to EIA/TIA-232-E, which brings it in line with internati
43、onal standards ITU-T V.24, List Of Definitions For Interchange Circuits Between Data Terminal Equipment (DTE) And Data Circuit-Terminating Equipment (DCE), V.28, Electrical Characteristics For Unbalanced Double-Cumnt Interchange Circuits, and ISO/IEC 21 I O, 25pole DTE/DCE Interface Connector and Co
44、ntact Number Assignments. The changes incorporated into this revision include: - the addition of the alternate use of connector pin 22 for Circuit CK, Received Energy Present, - the addition of definitions for rate change in Circuits DB, Transmitter Signal Element Timing, and DD, Receiver Signal Ele
45、ment Timing, - the addition of Section 6.9, Use of Circuits for Testing, and -the deletion of Section 7, Glossary. As with previous versions of EIAITIA-232, TINEIA-232-F provides operation to a maximum data signaling rate of 20 kbis. For operation at rates greater than 20 kbiffs, EIAITIA standards E
46、IA/ilA-530-AI High Speed 25Position Interface for Data Terminal Equipment and Data Circuit- Terminating Equipment, Including Alternative 26-Position Connector, ElMIA-561, Simple however, this standard does not include all of the interchange circuits required for automatically originating a connectio
47、n using EIA-366-A, Interface Between Data Terminal Equipment and Automatic Calling quipment for Data Communication. Serial dialing and control is described in TINEIA-602, Data Transmission Systems and Equipment - Serial Asynchronous Automatic Dialing and Control. 1.7 Allocation of Functions The DCE
48、may include transmitting and receiving signal converters as well as control functions. Other functions, such as pulse regeneration, error control, etc., may or may not be provided. Equipment to provide these additional functions may be included in the DTE or in the DCE, or it may be implemented as a
49、 separate unit interposed between the two. 1.7.1 When such additional kinctions are provided within the DTE or the DCE, this interface standard shall apply only to the interchange circuits between the two classes of equipment. 2 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-E
