A cross-connect is any connection between facilities provided as separate units by the datacenter. In other words, if you rent a cage, you can run cables betweeen your various racks and they are not really considered cross connects. But typically a user facility is a rack. Consider the uplink to a network provider. The line that runs from you to the telco's rack is a cross-connect. Any other between-rack cable run falls in this category. Even if the datacenter is bundling network access, it's still a cross-connect. (It's also typical to have a meet-me room that is the center of all the cross-connects, it's a patch-panel room or cage.)
Water recycling is the process of taking effluent (wastewater and sewage) and treating it so that it can be reused. For potable (drinkable) use, the recycled water has to be treated to a sufficiently high level that it's suitable for human consumption.
Water-natural, non toxic, low cost, environmentally friendly, and widely available, is widely used in water cooling, and if evaporated in the process may be called a refrigerant. Water also commonly serves as a heat transfer and storage material and in large systems it may actually fill all of these roles.his will ban potent greenhouse gases such as the refrigerant HFC-134a (also known as R-134a in North America) âwhich has a GWP of 1410âto promote safe and energy-efficient refrigerants. One of the most promising alternatives is CO 2 (R-744).