PoE (Power over Ethernet) continues to gain ground. Analysts predict high growth for the technology. According to Grand View Research, the market for global PoE chipsets will grow from 464.8 million US dollars in 2017 to 1.22 billion US dollars in 2025. Dell'Oro confirms the trend.
The analyst firm expects the implementation of over 750 million PoE-capable PSE switch ports by the end of 2020. Network cables, which can transmit more and more power, favour the trend.
The use of PoE is worthwhile
Companies benefit from many advantages. Since PoE transmits power and data via a single cable, they save above all costs for the acquisition and operation of additional cabling. PoE injectors or switches/hubs serve as the power source.
Most devices on the market now have Ethernet switches. This makes it possible to install devices independently of the power grid. Especially in installation locations where power lines are difficult or impossible to lay, such a method is very advantageous.
Thanks to PoE, separate power connections can be omitted and the effort for installing network devices is reduced. Companies often use the technology to supply remote devices such as webcams,
surveillance cameras or WLAN access points, which often have to be installed in inaccessible places. Another advantage of PoE is the increased fail-safety of the connected devices via a central and uninterruptible power supply (UPS). Continuous operation is possible in the event of a power failure. PoE works with direct current. AC/DC conversion adapters are not required, resulting in energy and cost savings.
Draka cables at the forefront
PoE is defined in several standards and enables different maximum possible performances depending on the standard. The table provides an overview. Electricians and planners will find all the details for a successful PoE installation.
From Cat.5e to Cat.8.2, all categories support the PoE standards 802.3af, at and bt. However, not with the same efficiency. For example, Draka Cat.7a, Cat.8.2 and Cat.7 Long Reach cables in AWG22 offer maximum PoE efficiency with power ratings between 72 and 90 watts. Thanks to the high transmittable power, even larger end devices, such as IP-TV devices in full HD or thin clients, can be supplied with power.
The transmission properties of Draka cables result in the lowest power dissipation and cable heating and deliver the highest energy performance at maximum cable operating temperature. They are the cable of choice for connecting other devices and systems.
Cable manufacturers are continuously working to develop the PoE performance of network data cables, as the limited power output associated with PoE remains the biggest shortcoming.
