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NB/T 10723-2021 矿井透地通信系统通用技术条件 General specifications of the through-the-earth communication system in the underground mine
本文件规定了矿井透地通信系统的术语和定义、分类、技术要求、试验方法和检验规则。<br />本文件适用于矿井透地通信系统(以下简称系统)。...
2023-11-15 19:12:01浏览:6
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YD/T 3421.3-2021 基于公用电信网的宽带客户智能网关 第3部分:网关管理平台技术要求 Broadband customer intelligent gateway based on public telecommunication network-Part 3 : Technical requirements of gateway management platform
本部分规定了基于公用电信网的宽带客户智能网关管理平台的架构、功能和性能等方面的要求。<br />本部分适用于基于公用电信网的宽带客户智能网关的终端和插件管理,宽带客户网关也可参考使用。...
2023-11-15 08:24:01浏览:9
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YD/T 2563.3-2013 LTE FDD数字蜂窝移动通信网 Uu接口物理层技术要求(第一阶段) 第3部分:物理层复用和信道编码 LTE FDD digital cellular mobile communication network -Uu interface physical layer technical requirement(Phase 1) -Part 3: Multiplexing and Channel Coding
本部分规定了LTEFDD数字蜂窝移动通信网Uu接口物理层的复用、信道编码和物理信道映射等。<br />本部分适用于LTEFDD数字蜂窝移动通信网。...
2023-11-10 12:24:02浏览:7
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YD/T 5072-2017 通信管道工程施工监理规范 Supervision Specifications of Communications Conduit Engineering
本规范适用于通信管道工程施工监理工作。...
2023-11-02 21:36:02浏览:10
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YD/T 3420.3-2020 基于公用电信网的宽带客户网关虚拟化 第3部分:实体家庭网关技术要求 Virtualization of broadband customer gatewaybased on public telecommunication network- Part 3: Technical requirements for physical residential gateway
本部分规定了宽带客户网关虚拟化后的实体家庭网关部分的网络定位、接口要求、功能要求、性能要求及管理功能的要求。<br />本部分适用于公众电信网环境下,宽带客户网关虚拟化后的实体家庭网关设备,专用电信网可参考使用。...
2023-10-30 14:00:01浏览:14
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YD/T 2633-2013 800MHz/2GHz cdma2000数字蜂窝移动通信网(第二阶段)A接口测试方法 Test specification for A interfaces in 800MHz/2GHz cdma2000 digital cellular mobile communication network (phase 2)
本标准规定了800MHz/2GHzcdma2000数字蜂窝移动通信网(第二阶段)A接口的测试方法和要求。<br />本标准适用于800MHz/2GHzcdma2000数字蜂窝移动通信网(第二阶段)的通信系统。...
2023-10-30 08:48:01浏览:10
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IEC TR 62351-90-1-2018 电力系统管理和相关信息交换--数据和通信安全--第90-1部分:电力系统基于角色的访问控制处理指南 Power systems management and associated information exchange - Data and communications security - Part 90-1: Guidelines for handling role-based access control in power systems
This part of IEC 62351, which is a technical report, addresses the handling of access control of users and automated agents to data objects in power systems by means of role-based access control (RBAC) as defined in IEC TS 62351-8. IEC TS 62351-8 defines three different profiles to distribute role information and also defines a set of mandatory roles to be supported. Adoption of RBAC has shown that the defined mandatory roles are not always sufficient and it is recommended that the method for defining custom roles be standardized to ensure interoperability. Hence, the main focus of this document lies in developing a standardized method for defining and engineering custom roles, their role-to-right mappings and the corresponding infrastructure support needed to utilize these custom roles in power systems. This is achieved by defining categories and sub level categories, which provide a distinction of actions, connected with dedicated rights as well as a proposal for a format to distribute the custom role-to-right mappings. Moreover, a format is being proposed to distribute the information on custom defined roles and associated rights by utilizing XACML as an established standard for access control. Besides the discussion of handling custom roles, this document also addresses the following issues:<br />– Providing recommendations and/or examples for role-right-operation and (object) association to ensure interoperability from operational and developers point of view.<br />– Providing mechanisms and rules to avoid overloading of existing roles by allowing for an aligned way to define new (custom) roles.<br />– Easing the administration of roles in IEDs from a device management point of view:<br /> • Allowing for centralized assignment of roles, by maintaining the same associations on device/application level.<br /> • Avoiding the definition of role-right-operation on command level to cope with diverse application environment of IEC TS 62351-8 (e.g. IED, substation level, control centre, SCADA).<br />– Enhancing available constraints for acting in a specific role considering the local environment with respect to operational constraints....
2023-10-29 19:12:01浏览:7
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SAE J3005-1-2019 Permanently Or Semi-Permanently Installed Diagnostic Communication Devices
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2023-10-29 09:12:02浏览:14
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ITU-R M.2377-1-2017 Radiocommunication objectives and requirements for Public Protection and Disaster Relief
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2023-10-20 16:24:01浏览:14
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