混沌初开我独醒的博客

SEGGER JLINK 驱动程序。

SEGGER JLINK 驱动程序。

315/433/868 and 915 MHz ISM/SRD band systems • Low power telemetry • Home and building automation • AMR – Automatic Meter Reading • Wireless alarm and security systems • RKE – Two-way Remote Keyless Entry • Consumer Electronics • Wireless sensor networks • Industrial monitoring and control

Silicon Laboratories’ Si4432 highly integrated, single chip wireless ISM transceiver is part of the EZRadioPRO™ family. The EZRadioPRO family includes a complete line of transmitters, receivers, and transceivers allowing the RF system designer to choose the optimal wireless part for their application. The Si4432 offers advanced radio features including continuous frequency coverage from 240–930 MHz and adjustable output power of up to +20 dBm. The Si4432’s high level of integration offers reduced BOM cost while simplifying the overall system design. The extremely low receive sensitivity (–118 dBm) coupled with industry leading +20 dBm output power ensures extended range and improved link performance. Built-in antenna diversity and support for frequency hopping can be used to further extend range and enhance performance. Additional system features such as an automatic wake-up timer, low battery detector, 64 byte TX/RX FIFOs, automatic packet handling, and preamble detection reduce overall current consumption and allow the use of lower-cost system MCUs. An integrated temperature sensor, general purpose ADC, poweron- reset (POR), and GPIOs further reduce overall system cost and size. The Si4432’s digital receive architecture features a high-performance ADC and DSP based modem which performs demodulation, filtering, and packet handling for increased flexibility and performance. This digital architecture simplifies system design while allowing for the use of lower-end MCUs. The direct digital transmit modulation and automatic PA power ramping ensure precise transmit modulation and reduced spectral spreading ensuring compliance with FCC and ETSI regulations.

Si4430/31/32 ISM TRANSCEIVER Frequency Range 240–930 MHz (Si4431/32) 900–960 MHz (Si4430)  Sensitivity = –121 dBm  Output power range +20 dBm Max (Si4432) +13 dBm Max (Si4430/31) Low Power Consumption 18.5 mA receive 30 mA @ +13 dBm transmit 85 mA @ +20 dBm transmit  Data Rate = 0.123 to 256 kbps  FSK, GFSK, and OOK modulation  Power Supply = 1.8 to 3.6 V  Ultra low power shutdown mode  Digital RSSI  Wake-up timer  Auto-frequency calibration (AFC)  Power-on-reset (POR)  Antenna diversity and TR switch control  Configurable packet handler  Preamble detector  TX and RX 64 byte FIFOs  Low battery detector  Temperature sensor and 8-bit ADC  –40 to +85 °C temperature range  Integrated voltage regulators  Frequency hopping capability  On-chip crystal tuning  20-Pin QFN package  Low BOM

低压电力用户集中抄表系统技术条件。 本标准规定了低压电力用户集中抄表系统的技术要求、试验方法以及使用验收规则。

DL／T 698_41主站通信协议（报批稿）

DL／T 698_35低压集抄终端特殊要求（报批稿）

DL／T 698_34公变采集终端特殊要求（报批稿）

DL／T 698_32厂站终端特殊要求（报批稿）

DL／T 698_31电能采集终端通用要求（报批稿）

DL/T698_2主站技术规范（报批稿） 电能信息系统与管理系统主站的架构、基本要求、功能和性能要求。

电能信息采集与管理系统，第一部分，总则。（报批稿）

国家电网公司2009年确定采用的抄表集中器GPRS模块电器接口形式规范-接口定义。

国家电网公司2009年确定的抄表集中器所用GPRS模块外形尺寸结构图，外壳尺寸图。