Issue link: https://www.e-digitaleditions.com/i/1414667
October/November/December 2021 I 41 HOW CONNECTED INFRASTRUCTURES LEAD TO SMARTER OPERATIONS Not only do IoT connected devices and platforms, such as PoE lighting, improve operational and energy efficiency, they create an interoperable mechanical and electrical ecosystem that ultimately results in a self-regulating, self-monitoring structure that provides intelligent data insights to help optimize performance FIGURE 2: PoE pendants/light fixtures. around security, temperature regulation, lighting, space utilization, and more. Therefore, it is not surprising that, according to Navigant Research, revenue from the advanced smart-energy sensor market is expected to almost triple between 2016 and 2025, from $1.2 million to $3.2 million. 3 This is expected, considering the increasing demand for smart buildings. According to a January 2020 Research and Markets report, that market is expected to register a compound annual growth rate (CAGR) of more than 23 percent over the forecast period (2020-2025). 4 What is even more eye opening is that this predicted growth likely does not take into account the office set- ting changes that will result as employees slowly tran- sition from remote work back to populating physical buildings. The office landscape will be forever altered, and data-driving smart sensor technology will play a significant role in framing the office space evolution. Fast PoE: Fast PoE helps enable PDs (light fixtures) as shown in Figure 2 to illuminate with low brightness within 10 seconds (~15 W of power given via cable two-pair by switch hardware) after a hard reload (e.g., unplugging the UPS and re-plugging it or after a power outage). This is a critical feature for PoE-connected While the current implementation options for PoE can power a broad range of devices connected to four-pair Ethernet networks, remote power delivery technology is still advancing. Recent standards development activity like 802.3cq and 802.3cv address some issues and technical discrepancies in current two-pair PoE applications (802.3af and 802.at) and four-pair PoE applications (802.3bt), adding clarifying text, new definitions, and other minor adjustments that improve accuracy and clarity. lighting to provide power at the device within seconds and not min- utes of delay. Typically, switches can require up to 15 minutes to reboot. In addition, ICT professionals should stay informed about single-pair Ethernet (SPE) applications (IEE 802.3cg) designed to provide low-speed data connections for IoT/IIoT devices like sensors, actuators, and controllers used in industrial control and operations networks, including remote powering technology, referred to as power over data line (PoDL) and covered by the IEEE 802.3bu standard. Like PoE, these remote power applications will ultimately make their way into smart buildings for powering low-speed sensors and controllers, such as those used in building automation systems. For those doing business internationally, refer to ISO/IEC JTC 1/SC 25/WG 3 that deals with customer premises cabling and generic cabling system standards in support of IEEE 802.3 Ethernet standards.