Network cabling, Fiber and Infrastructure
that works for your home or business
Your сommercial and home network cabling & wiring experts
PROCESS
We keep networks working
Every network line is toned, tested and labelled to ensure a reliable and trouble-free network
Omaha Communications 是经济实惠的网络布线和结构化布线正规网赌十大排行的领先供应商吗. We specialize in network wiring, copper cable (Cat 5e, Cat 6), fiber optic cable, new office wiring, cubicle wiring, remodelling wiring, data drops, voice, data, security camera wiring, and any other IT wiring.
每条网络线路都经过全面端接、调音和测试,确保网络可靠运行. 我们直接与最终用户合作,我们也为总承包商和电气承包商分包.
SERVICES
Network services and cabling
无论是一个完整的仓库建设或只是增加一个办公室隔间 十大网赌正规网址公司可以解决您的网络基础设施问题.
Commercial network
data cabling
We support networks from




SERVICES
Selecting a network cabling installer
当您需要在您的企业中安装新的结构化布线时,是时候选择正确的安装程序了. 但是您应该对设计和安装团队有什么期望呢?
Every cabling design and installation project is different. 但是,无论是需要主干布线和水平布线的校园范围项目,还是更简单的单个建筑项目,安装团队的某些特征和行动都可以提示您提供商是否能够满足您的需求:
SERVICES
Power over Ethernet comparison
POE vs POE+ vs 4PPOE (802.3af vs 802.3at vs 802.3bt)
POE – the beginning
与传统的供电方式相比,以太网供电(PoE)具有许多优点, including time and cost savings, flexibility, safety, reliability, and scalability. POE也是一种低压电源,在大多数地方不需要遵守高压电气规范.
主要的缺点是可用功率有限. Initially, 802.3af -电气和电子工程师协会(IEEE)采用的第一个POE标准提供了15.4W的功率,对于当时的IP电话和其他简单应用来说已经足够了. 但随着更复杂的应用进入市场,对更多功率的需求也在不断增加.
POE Plus and Internet of Things (IoT)
Then in 2009, the (IEEE) released IEEE 802.3at also known as POE Plus (or POE+). “POE +”规定POE源功率为30W,设备功率为24W. POE Plus为新兴的物联网市场提供了更大的灵活性。. 物联网(IoT)是指大量涌入的新设备,这些设备需要电源和网络连接,并帮助连接我们日常生活的各个方面.
各种各样的设备正在进入市场,这些设备需要电力和数据,这是最初的POE标准所没有预料到的. This includes things like smart thermostats, smart doorbells, IP cameras, IP based alarm systems, Internet controlled lighting, and Wi-Fi access points. POE Plus可以同时为这些设备提供电源和数据连接.
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What is 802.3bt – 4PPOE?
Power Capacity of the 3 POE Standards
为了满足对更大功率的需求,IEEE引入了IEEE 802.3bt in 2018. IEEE is also referred to as 4PPOE or “BT”. 802.3bt expands the maximum PoE power available, 将电源设备(PSE)的功率限制提高到90W,将供电设备(pd)的功率限制提高到71 w.3W. 这个新标准通过利用所有四对结构化布线来实现这一点. Additionally, IEEE 802.3bt supports multiple PoE classes and is backward compatible.
The 802.3bt标准可能在一段时间内成为最高功率POE标准. 这个标准不仅遇到了工程上的挑战(它已经使用了所有四对电线来传输电力)。, 它还面临监管问题,因为90W非常接近允许通过电线发送的最大功率,而不必遵守高压布线所需的标准和法规.
802.同时,3bt确实可以满足某些大功率设备的需求. 这些包括机动PTZ (Pan Tilt Zoom)十大网赌正规网址和高功率Wi-Fi接入点. 802.3bt还能为手机、平板电脑甚至笔记本电脑提供足够的电力.
Examples of POE by Application
Device Type
IP Phone
IP 4k Camera
IP Doorbell
Alarm System
IP Video Phone
PTZ Camera
Hi-Power Wi-Fi AP
802.3af
802.3at
802.3bt
INDUSTRIES
The institutions we work with to provide best communication and safety solutions







Ready to build better communication?
寻找有关有线或无线数据网络的帮助和建议?
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or call us right away
(402) 346-0200