A4H254-8F8T P0973JP  |  交换机  |    全新原装 现货

品牌：ENTERASYS

型号：A4H254-8F8T P0973JP

类别：交换机

A4H254-8F8T P0973JP 交换机（Switch）是一种用于电（光）信号转发的网络设备。它可以为接入交换机的任意两个网络节点提供独享的电信号通路123。最常见的交换机是以太网交换机，其他常见的还有电话语音交换机、光纤交换机等。

A4H254-8F8T P0973JP  交换机工作于OSI参考模型的第二层，即数据链路层。它根据网桥的原理发展起来，具有学习功能，可以识别并记忆网络中的设备MAC地址，并通过地址表进行信息转发决策。

A4H254-8F8T P0973JP  交换机按照通信两端传输信息的需要，自动完成信息传输到符合要求的相应路由上，以此实现信息的交换1。交换机有多个端口，每个端口都具有桥接功能，可以连接一个局域网或一台高性能服务器或工作站1。此外，交换机还具有性价比高、高度灵活、相对简单和易于实现等特点1。

A4H254-8F8T P0973JP  交换机在组网中扮演着重要的角色，可用于扩大网络、提供更多的连接端口，以便连接更多的计算机或其他设备。在大型网络系统中，交换机通常被用于核心层、汇聚层和接入层的不同位置，以实现不同层级之间的数据交换和通信。

功能特点:

1)现场安装方便，不用挖沟布线。在大规模的生产过程控制项目中节约了大量电缆和施工费用，降低了项目成本。

2)可以多节点无线组网，点对多点无线组网。在中控室通过无线方式，直接读取连接在节点上的温度数据。

3)使用不受限制的470MHZ~510MHZ公用频道，不必申请频道。

4)所有电路设计均采用低功耗技术，标准配置的电池可连续工作一到两年

Brand: ENTERASYS

Model: A4H254-8F8T P0973JP

Category: Switch

A4H254-8F8T P0973JP Switch is a network device for the transmission of electrical (optical) signals. It can provide an exclusive electrical signal path for any two network nodes of the access switch. The most common switch is the Ethernet switch, other common telephone voice switch, Fibre Channel switch, etc. 13.

The A4H254-8F8T P0973JP switch operates at the second layer of the OSI reference model, Data Link Layer 2. Developed according to the principle of bridge, it has a learning function, can identify and remember the MAC address of the device in the network, and carry out information forwarding decision 2 through the address table.

A4H254-8F8T P0973JP switch automatically completes the information transmission to the corresponding route that meets the requirements according to the needs of the communication ends, so as to realize the exchange of information 1. The switch has multiple ports, each with a bridge function, that can connect to a LAN or a high-performance server or workstation1. In addition, switches are cost-effective, highly flexible, relatively simple and easy to implement.

The A4H254-8F8T P0973JP switch plays an important role in networking, which can be used to expand the network and provide more connection ports to connect more computers or other devices. In large network systems, switches are usually used in different locations of the core layer, aggregation layer and access layer to realize data exchange and communication between different levels.

Functional features:

1) Easy to install on site, no need to dig trenches for wiring. In large-scale production process control projects, a lot of cable and construction costs are saved and project costs are reduced.

2) Can be multi-node wireless networking, point-to-multipoint wireless networking. The temperature data connected to the node is read wirelessly in the central control room.

3) Use unrestricted 470MHZ~510MHZ public channels, do not need to apply for channels.

4) All circuits are designed with low-power technology, and the battery with standard configuration can work continuously for one to two years