PTN is a core of connection-oriented packet technology. It also has end-to-end service management, hierarchical OAM, and carrier-grade protection and other transmission characteristics. It mainly carries Carrier Ethernet services and is compatible with services such as TDM and ATM. Transmission technology. The PTN packet transmission network is the next generation transmission technology that is recognized by the transmission industry as a replacement for SDH. The 1850TSS is a smooth evolutionary end-to-end PTN transmission solution that Alcatel-Lucent has developed to address the determinacy and pattern uncertainty of mobile IP service development. The 1850TSS series includes a series of devices with different capacities from the access to the core. The TSS-3, TSS-5, TSS-40, TSS-100, TSS-160 and TSS-640/320 are currently introduced in the domestic market. Product. TSS-5 positioning is suitable for TDM/Ethernet hybrid access scenarios. It can be configured as STM-4 SDH/MSTP and Carrier Ethernet/PTN platform with 5G switching capacity. It also supports TDM service emulation access. Suitable for mobile base station access application scenarios. TSS-5 selects Texas Instruments' MSP430 microcontroller (MSP430F5508) as its single-board controller to communicate with the motherboard. MSP430 series MCU is a RISC-based 16-bit ultra low power mixed signal processor (TI) introduced by Texas Instruments (TI) in 1996. MSP430 series MCU can not only be used in many traditional MCU applications, such as instrumentation, automatic control and consumer products, but also more suitable for some battery-powered low-power products, such as energy meters (water meters, electricity meters, gas meters, etc.), Hand-held devices, smart sensors, and smart devices that require high computing performance. The MSP430 family of microcontrollers combines the best features of intelligent peripherals, ease of use, low cost, and industry's lowest power consumption to meet the requirements of a wide range of applications. The key features of MSP430 MCUs include: 1) Ultra-low power (ULP) architecture and highly flexible clock system significantly extend battery life; 2) Integrate a variety of intelligent peripherals: a variety of high-performance analog and digital peripherals can significantly reduce the workload of the CPU; 3) The easy-to-use 16-bit RISC CPU architecture enables the latest applications with industry-leading code density; 4) Complete industrial development environment, Texas Instruments provides a complete set of development tools and technical support. The microcontroller model selected for the TSS-5 system is the MSP430F5508, as shown in Figure 1. The MSP430F5508 is equipped with an integrated USB2.0 interface, four 16-bit timers, a high performance 10-bit ADC, two serial communication USART (UART, SPI and I2C) interfaces, hardware multipliers, direct data access (DMA), Real-Time Clock Module with Alarm Capability, 25 MHz Clock, 16K Flash memory, 6k SRAM and 47 pins. TSS-5 system uses Linux embedded real-time operating system, select MSP430F5508 as a common single board controller, all boards share a firmware version of the microcontroller. The serial port of the microcontroller has two operating modes: BSL mode and APP mode. The microcontroller uses the BSL mode to download the firmware version of the microcontroller. The APP mode is used for normal operation. As shown in FIG. 2 , the general functions of the TSS-5 microcontroller in the APP mode include: communication with the main board, storage of the board's resource details (RI), detection of the slot number and latch status, and control of the single board LED. The light monitors the voltage and current of the board, monitors the temperature of the board through an integrated temperature sensor, and collects and reports board alarms through an analog-to-digital converter (ADC). For some special function boards, the microprocessor provides special functions. For example, the microprocessor on the power board also supports the control of the 48 V voltage switch. The microprocessor on the ACCess board supports protection switching. The I/O board microprocessor supports FPGA download and update via USB interface. For the AHSM board, the microprocessor is also used to output alarms to external alarms. The microprocessor on the A4GFX board also supports reading SFP information, P16FE8X and The microprocessor on the A8GFE board supports clock resets, and the microcontroller on the fan board supports fan speed control. For the fan board, the MSP430 first receives the target fan speed set by the user through the APP interface, and then collects the current fan speed in real time through an analog-to-digital conversion module (ADC), and then uses an optimization algorithm (such as least squares) to control the fan speed and the fan speed. Control is in a relatively stable state. If the fan speed fails to reach the target fan speed, an alarm is reported. In July 2011, TSS-5 released its first version. A large number of experiments were conducted on the system, and each function was tested in detail for each board. The experimental results showed that TSS-5 has stable performance. For example, the actual fan speed output is shown in solid line 1 in Figure 3. For example, the resource detail information (RI) of the board is only required to be 2 s, as shown in Figure 4. The research results show that the TSS-5 uses the MSP430 as a universal single-board controller, which brings many advantages to the TSS-5. The microprocessor-integrated EEPROM, digital-to-analog converter, and flash memory save the TSS-5's board size, cost, and power consumption. In the TSS-5 system, all boards share a microprocessor firmware version, which is conducive to development and debugging, and is more convenient for future maintenance and upgrades. MSP4 30F5508FLASH type microprocessor also has a very convenient development and debugging environment. In the early debugging stage of TSS-5, it uses the JTAG interface to download the program to FLASH first, and then the JTAG interface controls the program to run and read the on-chip CPU status. As well as the debugging of memory contents and other information, in the stable phase, TSS-5 uses the BSL mode to erase the FLASH memory and download the firmware version. This development method combined with FLASH technology, JTAG debugging, and integrated development environment also brings advantages such as convenient development, low cost, and practicality to TSS-5 products. At the same time, the peripheral modules of the microprocessor are rich in functions, such as the USB interface. Provides future functional expansion for the product. Online Expansion Of Lithium Ion Battery 25Ah Modules Battery,Bluetooth App Battery,Remote Monitoring Battery,Custom Lithium Battery Wolong Electric Group Zhejiang Dengta Power Source Co.,Ltd , https://www.wldtbattery.com
