This standard defines an extensible IEEE 802(R) media access independent services framework (i.e., function and protocol) that enables the optimization of services including handover service when performed between heterogeneous IEEE 802 networks. It also facilitates these services when networking between IEEE 802 networks and cellular networks.
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This standard specifies methods to provide enhanced protection to protected devices such as those used in the production and transmission of broadcast programs [e.g., devices licensed as secondary under Title 47 of the Code of Federal Regulations (CFR) in the USA and equivalent devices in other regulatory domains] from harmful interference caused by license-exempt devices (e.g., IEEE P802.22) that also are intended to operate in the TV Broadcast Bands.
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This standard defines Structure of Management Information version 2 (SMIv2) Management Information Base (MIB) module specifications for IEEE Std 802.3 Ethernet and associated managed object branch and leaf assignments used in the variable descriptors in IEEE Std 802.3 Variable Request operations, administration, and maintenance protocol data unit (OAMPDU).
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The Standard will define a Dual Bus subnetwork incorporating a shared Medium physical layer of two unidirectioonal buses, a non-isochronous media access control sublayer based on Distributed Queueing and an isochronous media access control sublayer based on centralized time slot allocation. The standard will allow for bridges to interconnect two or more Dual Bus subnetworks to form a Metropolitan Area Network (MAN). The Dual Bus subnetwork and MAN shall be capable both of operating in the… read more public telecommunications network environment and of incorporation in the public network structure, and shall meet the operations, administration, maintenance and performance requirements of this environment for criteria such as reliability, availablity and security. The Dual Bus subnetworks and MAN shall operate at selected rates exceeding 1 Mbps and consistent with public network rates. The Dual Bus subnetworks and MAN shall be capable of operating over areas in excess of 50 kilometers in diameter. The performance and efficiency shall be essentially independent of subnetwork size and rate. read less
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The scope of this standard is to Develop an ISLAN interface at the medium access control (MAC) sublayer and the Physical (PHY) Layer compatible with IEEE 802.x and ISDN standards and architecturesDevelop an ISLAN interface that operates independently from the backbone networkFocus upon unshielded twisted-pair wiring as the primary distribution mediumEnable implementation of IS terminal equipment (ISTE) that accesses IEEE 802 LAN and ISDN services through a common interface The body of this… read more standard Defines the service provided by the MAC sublayer to the IEEE 802 Logical Link Control (LLC) sublayer and management, and describes the services provided by the PHY Layer to the MAC sublayer and management in terms of service primitives and associated parametersDescribes the services provided by the Physical Layer (PHY MUX) to support a basic rate interface (BRI) ISDN in terms of service primitives and associated parametersDescribes the services provided by the PHY MUX to the isochronous channelsSpecifies the MAC functions that allow ISTEs access to one another and to LANs providing IEEE 802 services and/or ISDN servicesSpecifies the frame format for the MAC frameDefines the MAC protocolSpecifies the channel structure and frame format of the time division multiplexed (TDM) frameSpecifies the PHY Layer functions over unshielded telephone twisted-pair (UTTP) cableSpecifies the characteristics of the UTTP attachment of the station to the access unit (AU) including the specification of the medium interface connectorSpecifies the definition of MAC and PHY managed objects (Mos)Describes recommended ISDN signalling and management methods to coordinate the multiple channels operated between ISTEs and the AU The normative annexes provide The Protocol Implementation Conformance Statement (PICS) proformaThe Managed Object Conformance Statement (MOCS)The Guidelines for the Definition of Managed Objects (GDMO) specificationsSupplemental recommendations on the use of CCITT Q.93x signalling procedures The informative annexes provide Reference models of common configurations as guidelines for implementationA sequence and description language (SDL) description of the information flow across protocol layersDescription of an optional remote secure control (RSC) procedure to invoke secure communication device (SCD) operationsRecommendations for a common, consistent synthesis of ISDN and IEEE 802 that conforms with the addressing of ISTE devices and servicesDescription of a mechanism to support the transport of a broadband ISDN conformant cell bearer service read less
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This recommended practice provides a single source of unique identification principles and definitions which, along with related recommended practices concerning component function identifiers, implementation instructions, and system descriptions, make up a concept, entitled the Energy Industry Identification System (EIIS), for uniquely identifying systems, structures, and components of nuclear and fossil fueled power plant projects (electric power generating stations) and related facilities.… read more Hydro and other types of power plant projects are not included in this issue. read less
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This recommended practice provides a single source of component function identifiers that, along with related recommended practices concerning unique identification principles and definitions, implementation instructions, and system descriptions, makes up a concept, entitled the Energy Industry Identification System (EIIS), for uniquely identifying systems, structures, and components of nuclear and fossil-fueled power plant projects (electric power generating stations) and related facilities.… read more Hydro and other types of power plant projects are not included in this concept. read less
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This recommended practice provides a single source of implementation instructions which, along with related recommended practices concerning unique identification principles and definitions, component function identifiers, and system descriptions, makes up a concept for uniquely identifying systems, structures, and components of nuclear and fossil-fueled powerplant projects (electric power generating stations) and related facilities. Hydro and other types of power plants are not included in this issue.
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The test methods and techniques used to measure the electrical characteristics of the grounding system include the following topics: a) Establishing safe testing conditions b) Measuring earth resistivity c) Measuring the power system frequency resistance or impedance of the ground system to remote earth d) Measuring the transient (surge) impedance of the ground system to remote earth e) Measuring step and touch voltages f) Verifying the integrity of the grounding system g) Reviewing common… read more methods and procedures for performing ground testing h) Reviewing instrumentation characteristics and limitations i) Reviewing various factors that can distort test measurements read less
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Test methods and instrumentation techniques used to measure the ac characteristics of large grounding systems include the following topics: 1) Measurement safety 2) Earth-return mutual errors 3) Low-current measurements 4) Power-system staged faults 5) Communication and control cable transfer impedance 6) Current distribution (current splits) in the grounding system 7) Step, touch, mesh, and proÞle measurements 8) The foot-equivalent electrode earth resistance 9) Instrumentation characteristics… read more and limitations Grounding electrodes consisting of a single ground rod, arrays of ground rods, tower footings, and many grids (if no external grounding is connected) can be measured, interference voltages permitting, with methods outlined in IEEE Std 81-1983 [2] 1 . Even if a large grid has an impedance phase angle of 18 ° the resistance component will be only 5% lower than its impedance. However, for large grounding grids in low-resistive earth (<75 W -m) and for grounding systems that have numerous extended grounding conductors, the impedance could be signiÞcantly greater than the resistive component measured with the conventional test sets of IEEE Std 81-1983 read less
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