描述
主要产品详情及功能
PMC尺寸：PMC676TX是一款标准PMC模块，这意味着它可插入主机板（例如单板计算机或载卡）上的PMC接口。这种模块化设计使其能够灵活地集成到各种嵌入式系统中。
双千兆以太网端口：它具有两个独立的10/100/1000BaseTX（铜缆）以太网接口。这提供了高速网络功能，支持每个端口10、100或1000 Mbit/s的数据传输速率。
高性能数据传输：
强大的DMA引擎：该卡为每个端口配备了一个强大的直接内存访问(DMA)引擎。该引擎与深度FIFO缓冲区（64 KB）相结合，可确保持续的全带宽运行，同时最大程度地降低主机PCI/PCI-X总线的开销。这对于需要实时数据处理和高吞吐量的应用至关重要。
全双工操作：两个通道均可全双工操作，允许同时发送和接收数据，从而实现最高效率。
PCI-X和PCI兼容性：支持64位/66MHz PCI和PCI-X接口，确保与主机系统进行高带宽通信。它还兼容3.3V和5.0V PCI信号环境。
主机卸载功能：PMC676TX包含一系列丰富的功能，旨在卸载主机CPU的处理任务，从而提高整体系统性能：
基于校验和错误的数据包过滤。
SNMP和RMON统计计数器。
硬件TCP校验和卸载。
支持各种地址过滤模式（例如，16位精确匹配、用于多播帧的4096位哈希过滤器）。
直接布线功能：两块PMC676TX板可通过简单的“交叉”电缆直接连接，创建专用的全双工1000 Mbit数据路径。这对于高带宽、低成本的点对点连接非常有用。
实时确定性：其设计，尤其是深度FIFO缓冲区和直接布线选项，有助于解决实时以太网应用中的确定性问题。
坚固性选项：
保形涂层：提供丙烯酸或聚氨酯保形涂层，可在恶劣环境下提供保护（例如防潮、防尘和防化学品）。
工作温度：通常为工业级工作温度，通常为0°C至+60°C。
软件支持：提供适用于大多数主流嵌入式和实时操作系统的驱动程序，包括VxWorks、Linux、LynxOS、Windows NT和Solaris。
前面板I/O：前面板上配备标准RJ-45接口，方便网络连接。
低功耗：低功耗设计，高效运行（例如，总功耗约6瓦）。
通用规格
制造商：Ramix（现为Abaco Systems）
产品类型：千兆以太网NIC（网络接口卡）
外形尺寸：PMC（PCI夹层卡）
端口：2 x 10/100/1000BaseTX（铜缆）
PCI控制器/以太网MAC：通常使用Intel 82546芯片。
PCI接口：兼容64位/66MHz PCI-X，符合PCI规范2.2。
功耗：约6瓦（0.9安培 3.3V，0.6安培 5V）。
工作温度：0°C至+60°C。
存储温度：-40°C至+85°C。
MTBF（平均故障间隔时间）：约245,000小时。
巨型帧：能够处理巨型帧，提高数据传输效率。
RoHS：提供符合RoHS标准的版本。
Key Product Details and Functions
PMC Form Factor:The PMC676TX is a standard PMC module,meaning it’s designed to plug into a PMC site on a host board(like a single-board computer or carrier card).This modular design allows for flexible integration into various embedded systems.
Dual Gigabit Ethernet Ports:It features two independent 10/100/1000BaseTX(copper)Ethernet interfaces.This provides high-speed networking capabilities,supporting data transfer rates of 10,100,or 1000 Mbit/second per port.
High Performance Data Transfer:
Powerful DMA Engine:The card includes a powerful Direct Memory Access(DMA)engine for each port.This engine,combined with deep FIFO buffers(64K bytes),ensures continuous,full-bandwidth operation with minimal overhead on the host PCI/PCI-X bus.This is crucial for applications requiring real-time data processing and high throughput.
Full Duplex Operation:Capable of full duplex operation on both channels,allowing simultaneous sending and receiving of data for maximum efficiency.
PCI-X and PCI Compatibility:It supports a 64-bit/66MHz PCI and PCI-X interface,ensuring high bandwidth communication with the host system.It’s also compatible with both 3.3V and 5.0V PCI signaling environments.
Host Off-loading Features:The PMC676TX includes a rich suite of features designed to offload processing tasks from the host CPU,improving overall system performance:
Packet filtering based on checksum errors.
SNMP and RMON statistic counters.
Hardware TCP checksum off-loading.
Support for various address filtering modes(e.g.,16 exact matches,4096-bit hash filter for multicast frames).
Direct Cabling Capability:Two PMC676TX boards can be directly cabled with a simple”cross-over”cable,creating a dedicated,full-duplex 1000 Mbit data path.This is useful for high-bandwidth,low-cost point-to-point connections.
Real-time Determinism:The design,particularly the deep FIFO buffers and direct cabling options,helps to address determinism concerns in real-time Ethernet applications.
Robustness Options:
Conformal Coating:Available with acrylic or polyurethane conformal coating for protection in harsh environments(e.g.,against moisture,dust,and chemicals).
Operating Temperature:Typically rated for industrial operating temperatures,often 0°C to+60°C.
Software Support:Drivers are available for most popular embedded and real-time operating systems,including VxWorks,Linux,LynxOS,Windows NT,and Solaris.
Front Panel I/O:Features standard RJ-45 connectors on the front panel for easy network connection.
Low Power Consumption:Designed with low power consumption for efficient operation(e.g.,around 6 watts total).
General Specifications
Manufacturer:Ramix(now Abaco Systems)
Product Type:Gigabit Ethernet NIC(Network Interface Card)
Form Factor:PMC(PCI Mezzanine Card)
Ports:2 x 10/100/1000BaseTX(copper)
PCI Controller/Ethernet MAC:Typically uses an Intel 82546 chip.
PCI Interface:64-bit/66MHz PCI-X compatible,PCI Specification 2.2.
Power Consumption:~6 watts(0.9 amps 3.3V,0.6 amps 5V).
Operating Temperature:0°C to+60°C.
Storage Temperature:-40°C to+85°C.
MTBF(Mean Time Between Failures):Around 245,000 hours.
Jumbo Frames:Capable of handling Jumbo Frames for increased data transfer efficiency.
RoHS:RoHS compliant versions are available.
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
