每一个有线网络都是从有线基础设施开始的. Ultimately the cabling infrastructure controls the reliability and capacity of the network. Designing and building an effective and efficient network infrastructure is a highly complicated and technical job. And that is where the cabling experts at 全球赌博十大网站 can help.
We will survey your physical premise design a wired network infrastructure cabling that meets your organization’s specific needs and requirements.
全球赌博十大网站 is a leading provider of affordable network wiring and structured cabling solutions. 我们专门做网络布线, 铜电缆(5e类, Cat 6), 光缆, 新的办公室线路, cubicle wiring, 改造布线, data drops, voice, data, 监控摄像头布线, 和其他IT线路.
Every network line is fully terminated, toned and tested to ensure reliable network operation. We work directly with end-users and we subcontract for General Contractors and Electrical Contractors as well.
Whether it is a complete warehouse build-out or just adding an office cubicle – 全球赌博十大网站 can solve your network infrastructure problems.
When you need new structured cabling installed in your business it is time to select the right installer. But what should you expect from your design and installation team?
每一个布线设计和安装工程都是不同的. But whether it is a campus-wide project requiring backbone cabling along with horizontal cabling or a simpler single building project there are certain installation team traits and actions that can tip you off to whether or not a provider will meet your needs:
POE vs POE+ vs 4poe (802.3af vs 802.3at vs 802.3bt)
Power over Ethernet (PoE) offers many advantages over traditional power methods, 包括节省时间和成本, flexibility, safety, reliability, 和可扩展性. POE also is a low voltage power source and does not require compliance with high voltage electrical codes in most locals.
The main drawback has been the limited amount of available power. Initially, 802.3af – the first POE standard adopted by the Institute of Electrical and Electronics Engineers (IEEE) provided 15.4W of power and was sufficient for IP phones and other simple applications at the time. But as more complex applications entered the market, there was an increasing demand for more power.
然后在2009年，IEEE发布了IEEE 802.3at也称为POE+(或POE+). POE Plus specifies 30W of power at the PoE source and 24W at the device. POE Plus provides much more flexibility for the burgeoning market for IoT (Internet of Things). The Internet of Things (IoT) refers to the massive influx of new devices that require power and network connectivity and help connect all aspects of our daily lives.
All kinds of devices are coming onto the market which requires power and data and was not anticipated by the original POE standard. 这包括智能恒温器, smart doorbells, IP cameras, 基于IP的报警系统, 网络控制照明, 和Wi-Fi接入点. POE Plus can provide power and data connectivity simultaneously to these devices.
What is 802.3bt – 4PPOE?
为了满足对更大功率的需求，IEEE引入了IEEE 802.3bt in 2018. IEEE也被称为4poe或BT. 802.3bt扩展了可用的最大PoE功率, pushing the power limit of power sourcing equipment (PSE) to 90W and powered devices (PDs) to 71.3W. This new standard achieves this by utilizing all four pairs of structured wiring. 此外，IEEE 802.3bt世界赌博十大网站多种PoE类，并向后兼容.
The 802.3bt standard is likely to be the highest power POE standard for some time. Not only does the standard run up against engineering challenges (it already uses all four pairs of wire to carry power), it also confronts regulatory issues since 90W is very close to the maximum amount of power allowed to send over the wire without having to comply with the standards and regulations required for high voltage wiring.
802.同时，3bt确实可以满足某些大功率设备的需求. These include motorized PTZ (Pan Tilt Zoom) security cameras and Hi-Power Wi-Fi Access Points. 802.3bt also provides enough power to charge phones, tablets, and even laptops.
IP 4k Camera
IP Video Phone