1、TIA 1 DECEMBER 2003 STANDARD TELECOMMUNICATIONS INDUSTRY ASSOCIATION Simple 8-Position Non-Synchronous Interface Between Data Terminal Equipment and Data Circuit- Terminating Equipment Employing Serial Binary Data Interchange TIA-561 Copyright Electronic Industries Alliance Provided by IHS under lic
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6、gulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-4092-RF1, formulated under the cognizance of the TIA TR-30.2 S
7、ubcommittee on DTE-DCE Interfaces.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2002 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATI
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19、thout license from IHS-,-,-EIA/TIA-561 FOREWORD This foreword is not part of Standard EIA/TIA-561 and has been added for information purposes only. This standard was developed in recognition of a need for physically smaller interfaces consistant with modern technology. When used in conjunction with
20、the electrical characteristics specified in EIA/TIA-562, this standard provides a complete interface specification suitable for non-synchronous applications were full functionality is not required. i Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo repr
21、oduction 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-,-,-EIX/TIA-SGl CONTENTS i . SCOPE . 1 1.1 GENERAL 1 1.2 CONNECTION . 1 1.3 BIT
22、SEQUENCES 1 1.4 DATA SIGNALING RATES . 1 1.5 NOK-SYNCHRONOUSCOMMUNICATION . 1 2 . INTERFACE MECHANICAL CHARACTERISTICS 2 2.1 POINT OF INTERFACE 2 2.2 INTERFACE CONNECTOR . 2 2.3 CONNECTOR CONTACT ASSIGNMENTS 7 3 . FUNCTIONAL DESCRIPTIONS OF THE INTERCHANGE CIRCUITS 8 3.1 GENERAL 8 3.2 CLASSIFICATION
23、 OF CIRCUITS . 8 3.3 SIGNAL CHARACTERISTICS, GENERAL 9 3.4 DEFINITIONS OF INTERCHANGE CIRCUITS 9 LIST OF FIGURES Figure 2.1 . 2 Figure 2.2 . 3 Figure 2.3 . 3 Figure 2.4 . 4 Figure 2.5 . 5 Figure2.6 . 6 Figure 2.7 . 7 Figure 3.1 . 8 Copyright Electronic Industries Alliance Provided by IHS under licen
24、se 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-,-,-EIA/TIA-SGl Page 1 SECTION ONE i. SCOPE 1.1
25、GENERAL This Standard is applicable to the interconnection of data terminating equipment (DTE) and data circuit-terminating equipment (DCE) employing serial binary data interchange where a minimal number of control and information circuits are required. It defines: Section i - Scope Section 2 - Inte
26、rface Mechanical Characteristics Section 3 - Functional Description of the Interchange Circuits The electrical characteristics applicable to this interface can be found in AMERICAN NATIONAL STANDARD ANSI/EIA/TIA-562. 1.2 CONNECTION When used in conjunction with the above mentioned electrical charact
27、eristics standard, this Standard applies where equipment on one side of the DTE/DCE interface is intended for connection directly to the other side without additional technical considerations. 1.3 BIT SEQUENCES This Standard applies to data communication systems where data is bit serialized by the D
28、TE and the DCE and places no restrictions on the arrangement or the sequence of bits. 1.4 DATA SIGNALING RATES This Standard is applicable for use at data signaling rates at or below 38.4 kbit/s. Equipments complying with this Standard, however, need not operate over this entire signaling range. The
29、y may be designed to operate over a more narrow range as appropriate for the specific application. 1.5 NON-SYNCHRONOUS COMMUNICATION This Standard applies to non-synchronous serial binary data communication systems. 1.6 CLASSES OF SERVICE This Standard applies to duplex switched, non-switched, dedic
30、ated, leased or private line service, either tw+wire or four-wire. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA/TIA-561 Page 2 SECTION TWO 2. INTEILFACE MECHANICAL CHARACTERISTICS
31、 2.1 POINT OF INTERFACE The interface between the DTE and the DCE is located at a pluggable connector signal interface point between the two equipment8 (see Figure 2.1). An $hlno.08 FiGe 2.4 Mechanical Specification - Cable Connector Copyright Electronic Industries Alliance Provided by IHS under lic
32、ense with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA/TIAJ61 Page 5 Dimensions in millimeters (inches in parenrrieseS) NOTES t The 24 min. angle appiies oniy to plugs mth front plesls waa higher Ikw 4.a3mm (0.190 m). 2 .lack cornaas may be recmguh wth a
33、width d 050 (0.olsS) wm ?id 036 (0.014) min. Figure 2.5 Contact Specification Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-E IA/TI A- 56 1 Page 6 P IT I al c c YC us m ci* EO - o- in
34、um in these cases the ON condition on Circuit 125 may be in response to these predefined ringing signals. The operation of this circuit shall not be disabled by an OFF condition on Circuit 108/2 (DTE Ready). The DTE may decline to answer a call by not placing an ON condition on Circuit 108/2 in resp
35、onse to 125 cycling. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA/TIA-561 Page 12 Circuit 133-Beady for Receiving Direction: To the DCE This circuit is used to control the transfe
36、r of data on Circuit 104 (Received Data) when an intermediate function such as error control is being used in the DCE. The ON condition on Circuit 133 indicates that the DTE is capable of receiving data. The OFF condition indicates that the DTE is not capable of receiving data and causes the DCE, or
37、 the intermediate function, to retain the data. in some DCEs the OFF condition on Circuit 133 may also cause a signal to be transmitted to the distant DCE causing an OFF condition to be placed on Circuit 106 (Clear to Send) extending the flow control to the distant DTE. Copyright Electronic Industri
38、es Alliance Provided by IHS under 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-,-,-Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
