定价： 159元 / 折扣价： 136 元

定价： 83元 / 折扣价： 71 元

定价： 83元 / 折扣价： 71 元

定价： 66元 / 折扣价： 57 元

The scope of this project is to augment the capabilities of the IEEE Std 802.3 standard with 4-pair power and associated power management information. The project will augment the methodology for the provision of power via balanced cabling to connected Data Terminal Equipment with 802.3 interfaces. Optional augmented power limit will be made available for certain structured cabling systems. Improvements introduced for 4-pair systems, excluding raising the power limit, are optionally enabled for 2-pair systems. Compatibility with existing equipment will be maintained.

定价： 192元 / 折扣价： 164 元

The scope of this International Standard is to — Develop an ISLAN interface at the medium access control (MAC) sublayer and the Physical (PHY) Layer compatible with IEEE 802.x1 and ISDN standards and architectures — Develop an ISLAN interface that operates independently from the backbone network — Focus upon unshielded twisted-pair wiring as the primary distribution medium — Enable implementation of IS terminal equipment (ISTE) that accesses IEEE 802 LAN and ISDN services through a common interface

定价： 266元 / 折扣价： 227 元

Generate a standard for 100 Mbit/s 802.5 Token Ring LANs based on the present 802.5 Token Ring MAC. It will support 2-pair Category 5 (100 ohm) and STP (150 ohm) cabling as specified in IS-11801 (and EIA/TIA 568A). The standard will consist of specifications for both stations and ports. MAC frame format will be based on that defined for IEEE 802.5, modified only to meet the specifications for the Tc PHY. The frame format between MAC and LLC is being preserved

定价： 253元 / 折扣价： 216 元

This International Standard defines the protocol and compatible interconnection of data communication equipment via a repeater-controlled, star-topology Local Area Network (LAN) using the demand-priority access method.

定价： 318元 / 折扣价： 271 元

The scope of this standard is to specify provision of connectionless user data confidentiality, frame data integrity, and data origin authenticity by media access independent protocols and entities that operate transparently to MAC Clients. NOTE--The MAC Clients are as specified in IEEE Std 802, IEEE Std 802.1Q™, and IEEE Std 802.1X™.

定价： 171元 / 折扣价： 146 元

定价： 93元 / 折扣价： 80 元

The scope of this standard is to define one medium access control (MAC) and several physical layer (PHY) specifications for wireless connectivity for fixed, portable, and moving stations (STAs) within a local area.

定价： 703元 / 折扣价： 598 元

This standard specifies protocols, procedures, and managed objects used to ensure that the synchronization requirements are met for time-sensitive applications, such as audio, video, and time-sensitive control, across networks, for example, IEEE 802 and similar media. This includes the maintenance of synchronized time during normal operation and following addition, removal, or failure of network components and network reconfiguration. It specifies the use of IEEE 1588(TM) specifications where… read more applicable in the context of IEEE Std 802.1Q(TM)-2018. 1 Synchronization to an externally provided timing signal [e.g., a recognized timing standard such as Coordinated Universal Time (UTC) or International Atomic Time (TAI)] is not part of this standard but is not precluded. read less

定价： 219元 / 折扣价： 187 元

Define dedicated attachment of existing token ring stations. In addition, expand the station's capability to simultaneously transmit and receive independent data streams for all frames. define station concentrator functions in sufficient detail to produce an interface between station and concentrator that assures interworking.

定价： 293元 / 折扣价： 250 元

定价： 83元 / 折扣价： 71 元

定价： 160元 / 折扣价： 136 元