35.100.10 物理层 标准查询与下载



共找到 295 条与 物理层 相关的标准,共 20

Services for Computer Supported Telecommunications Applications are defined by Standard ECMA-269 and the XML Protocol for those services are defined by Standard ECMA-323. In many cases, applications require only a small subset of the features standardized in CSTA. In a voice browser environment, processing speech (not call control) is usually the major focus of the application. For example, from a CSTA feature perspective, an application may simply need to answer an incoming call and then later clear it. As these speech-centric applications evolve they can use additional, more advanced, features standardized by CSTA that are provided by CSTA-conformant communications platforms. Since ECMA-269 and ECMA-323 are relatively large standards (combined over 1100 pages), it is a challenge for application developers without prior knowledge of the CSTA standards to know where to find basic concepts that they need to understand in order to implement basic CSTA features. This TR illustrates how ECMA-323 can be used in a Voice Browser environment. These concepts illustrated in this TR can be applied to any Voice Browser environment that provides an XML-based read/write messaging interface (i.e. CSTA Service Boundary) that supports asynchronous events from a CSTA conformant communication platform. SALT enabled browsers that implement a ECMA-323 interface for call control using the SALT smex mechanism is an example of a browser with this capability. Throughout this TR the term "ECMA-323 enabled voice browser" is used, in a generic sense, to refer to browser implementation that support a CSTA conformant ECMA-323 interface. Examples are provided that show how ECMA-323 can be used in several different environments such as SALT-enabled browsers and CCXML.

Information technology - Telecommunications and information exchange between systems - Using ECMA-323 (CSTA XML) in a Voice Browser Environment

ICS
35.100.10
CCS
L78
发布
2004-02
实施

Air/Ground Interfaces and Protocols of Layer 2 - Link Layer

Air/Ground Interfaces and Protocols of Layer 2 - Link Layer

ICS
35.100.10
CCS
L78
发布
2003
实施

Air/Ground Interfaces and Protocols for Layer 1 - The Physical Layer

Air/Ground Interfaces and Protocols for Layer 1 - The Physical Layer

ICS
35.100.10
CCS
L78
发布
2003
实施

This document will define the Physical Layer and portions of the Data Link Layer of the ISO model for a 250 Kbps High Speed CAN (HSC) protocol implementation. Both ECU and media design requirements for networks will be specified. Requirements will primarily address the CAN physical layer implementation.

High Speed CAN (HSC) for Vehicle Applications at 250 Kbps

ICS
35.100.10
CCS
T07
发布
2002-03-01
实施

This document will define the Physical Layer and portions of the Data Link Layer of the ISO model for a 125 Kbps High Speed CAN (HSC) protocol implementation. Both ECU and media design requirements for networks will be specified. Requirements will primarily address the CAN physical layer implementation.

High Speed CAN (HSC) for Vehicle Applications at 125 Kbps

ICS
35.100.10
CCS
T07
发布
2002-03-01
实施

Cabin Equipment Interfaces Part 6 Fiber Optic Cable Assembly General Specification

Cabin Equipment Interfaces Part 6 Fiber Optic Cable Assembly General Specification 2001

ICS
35.100.10
CCS
L78
发布
2002-02-28
实施

Cabin Equipment Interfaces Part 6 Fiber Optic Cable Assembly General Specification 2001

Cabin Equipment Interfaces Part 6 Fiber Optic Cable Assembly General Specification 2001

ICS
35.100.10
CCS
L78
发布
2002-02-28
实施

Network and Customer Installation Interfaces - DS3 Physical Layer Interface and Mapping Specifications for ATM Applications

ICS
35.100.10
CCS
M14
发布
2002
实施

Makes corrections to the original document.

100 Mb/s Layer Medium Dependent Sublayer and 10 Mbs and 100 Mbs Auto-Negotiation on 850 mm Fiber Optics - Addendum 1

ICS
35.100.10
CCS
M33
发布
2002
实施

This SAE Recommended Practice details the physical layer of the Intelligent Transportation Systems (ITS) Data Bus on CAN (IDB-C), which is generally intended for in-vehicle use.

ITS Data Bus - IDB-C Physical Layer

ICS
35.100.10
CCS
T07
发布
2001-11-01
实施

Cabin Equipment Interfaces Part 8 In-Flight Entertainment (IFE) Equipment Standard Available Measurement Guidelines

Cabin Equipment Interfaces Part 8 In-Flight Entertainment (IFE) Equipment Standard Available Measurement Guidelines

ICS
35.100.10
CCS
L78
发布
2001-04-06
实施

Cabin Equipment Interfaces Part 8 In-Flight (IFE) Equipment Standard Availability Measurement Guidelines

Cabin Equipment Interfaces Part 8 In-Flight Entertainment (IFE) Equipment Standard Available Measurement Guidelines

ICS
35.100.10
CCS
L78
发布
2001-04-06
实施

ACARS MU/CMU - HFDL Interface

ACARS MU/CMU - HFDL Interface

ICS
35.100.10
CCS
L78
发布
2001-02-16
实施

Cabin Equipment Interfaces Part 7 Cabin Equipment Cooling General Specification 2001

Cabin Equipment Interfaces Part 7 Cabin Equipment Cooling General Specification 2001

ICS
35.100.10
CCS
L78
发布
2001-02-14
实施

Cabin Equipment Interfaces Part 7 Cabin Equipment Cooling General Specification 2001

Cabin Equipment Interfaces Part 7 Cabin Equipment Cooling General Specification 2001

ICS
35.100.10
CCS
L78
发布
2001-02-14
实施

This Technical Report provides guidance for the choice of an appropriate method for, and the implementation of, data flow control capabilities in DTEs and DCEs. It also coordinates information from other Recommendations and International Standards and provides tutorial material on these flow control techniques.

Information technology - Methods for data flow control at synchronous and asynchronous DTE-DCE interfaces

ICS
35.100.10
CCS
发布
2001-02-08
实施
2000-12-14

Information Technology - Telecommunications and Information Exchange between Systems - DTE/DCE Interface Back-Up Control Operation Using ITU-T Recommendation V.24 Interchange Circuits

ICS
35.100.10
CCS
发布
2001-01-01
实施

Information Technology - Telecommunications and Information Exchange between Systems - DTE to DTE Direct Connections

ICS
35.100.10
CCS
发布
2001-01-01
实施

Information Technology - Telecommunications and Information Exchange between Systems - Interface Connector and Contact Assignments for ISDN Primary Rate Access Connector Located at Reference Points S and T

ICS
35.100.10
CCS
发布
2001-01-01
实施

1.1 Purposes1.1.1 This specification defines the Open Systems Interconnection (OSI) layer 1, physical layer, for dedicated short-range communications (DSRC) equipment, operating in two-way, half-duplex, active and backscatter modes.1.1.2 This specification establishes a common framework for the physical layer in the 902 to 928 MHz LMS band. This band is allocated for DSRC applications by the FCC in Title 47, Code of Federal Regulations (CFR), Part 90, Subpart M and by Industry Canada in the Spectrum Management, Radio Standard Specification, Location and Monitoring Service (902-928 MHz), RSS-137.1.1.3 This specification defines an air interface for both wide-area (multi-lane, open road) and lane-based applications that enables accurate and valid message delivery between moving vehicles randomly entering a communications zone and fixed roadside communication equipment. This air interface also enables accurate and valid message delivery between moving or stationary vehicles and fixed or portable roadside communication equipment.1.1.4 This specification does not include associated measurement guidelines for verification of the formulated requirements in this specification. It is intended that readers will be able to refer to the ASTM standard on Technical Characteristics and Test Methods for Data Transmission Equipment Operating in the 902 to 928 MHz LMS Band for the measurement guidelines, when it is developed.1.1.5 This specification does not consider any one specific ITS application, but rather describes a communication means to be used by several ITS applications. This specification also may be used for any non-roadway environment that can utilize this type of dedicated short-range radio communication.1.1.6 While this specification defines frequencies and power levels that are compatible with the North American regulatory requirements, the technical methodology used in their selection can be utilized in other regions of the world.1.2 Equipment1.2.1 The DSRC equipment is composed of two principle components: road-side equipment (RSE) and on-board equipment (OBE) or transponder.1.2.2 The RSE controls the protocol, schedules the activation of the OBE, reads from or writes to the OBE, and assures message delivery and validity. It is intended for, but not restricted to, installation at a fixed location on the roadway.1.2.3 The OBE communicates with the RSE and is intended for, but not restricted to, installation in or on a motor vehicle.1.2.4 The RSE must be capable of communicating with closely spaced OBE in the same lane or closely spaced OBE in adjacent lanes.1.2.5 This specification provides requirements for the communication medium to be used for exchange of information between RSE and OBE. Active, backscatter, and dual-mode technologies are described.1.3 Structure1.3.1 This specification defines an open (non-proprietary) architecture using the simplified OSI seven-layer reference model (per ISO 7498). The following sub-section describe the relationships of the OSI layers that support DSRC.1.3.1.1 The physical layer (Layer 1) is defined as a half-duplex radio frequency medium, in the 902 to 928 MHz band. Layer 1 interfaces with Layer 2.1.3.1.2 The data link control layer (Layer 2) defines a Time Division Multiple Access (TDMA) messaging protocol in which both the downlink and uplink are completely controlled by the RSE. The data link control layer provides a mechanism to ensure reliable completion of each transaction in the communications zone. This layer includes data organization, sequence control, flow control, error detection and error recovery among other functions. Layer 2 interfaces with Layer 7.1.3.1.3 The application layer (Layer 7) defines specific functions and message formats to support ITS and other services. Implicit or pre-set message formats may be used. Data encryption......

Standard Specification for Dedicated Short Range Communication (DSRC) Physical Layer Using Microwave in the 902 to 928 MHz Band

ICS
35.100.10
CCS
M30
发布
2001
实施



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