The push for office buildings to become smarter poses several challenges for IT and facility managers on how to achieve that. The nervous system of a smart building is essentially a network. Careful planning is essential to address this added complexity that comes with a converged IP network. Generally speaking, we can divide the main drivers to operate a smart building into four categories: devices, bandwidth, wireless and power.
#1
The first driver is the escalation in volume and type of devices coming from the operational technology side of the business that gets installed in and around a building. Think here of a myriad of sensors, alarms, activators, humidity and temperature controls, and so on. These add a lot more devices, and with them different applications and complexity, to the network.
#2
The second one is looking at the bandwidth requirements that we need to address. Bandwidth demand is still escalating, albeit at a slower rate than in the past. What will change is where in the office space this bandwidth will be needed. In the past most bandwidth requirements were needed at floor level to service computers and telephones.
Going forward we will be putting less points to the desktop, but we will be needing much more into the ceiling to cover the higher number of bandwidth ready Wireless Access Points.
#3
Third is the huge escalation in wireless connected devices and the changes in Wi-Fi technology. We have seen the evolution of wireless data rates progress over the years from a few hundred megabits per second to tens of gigabits per second. The downside of this increase in data rates is that it reduces the reach that WAPs inside the building can cover. As a result, more WAPs need to be installed to cover the same area and deliver the same amount of data these higher bandwidth devices demands.
5G is more of the same. We see the data rates from 4G to 5G increase – and with that – the reach, especially inside buildings, decrease. So, if we want to rely on 5G in the office, we have no choice but to place more antennas to cover the same area.
#4
These devices have to be powered somehow. We have seen several Power over Ethernet versions being defined by the Standards in the last years, each consecutive one increasing the amount of power that can be delivered to the end device.
In addition to PoE you also have Single Pair Power over Ethernet. Power is running over a single copper pair instead of all 4 pairs with PoE. Choosing the right copper cable in terms of grade and shielding to counter heating effect is important, regardless of if you opt for PoE or SPoE.
These are some of the main drivers to consider when dealing with smart buildings.
