For critical power monitoring networks, ASCO Power Technologies, Inc., offers connectivity units in Standard or Managed configurations. The latter features an Ethernet switch that provides data transfer through ring topologies, which offer redundant pathways. The following diagrams compare the capabilities of standard and managed connectivity units.
The simplest networks use a linear topology, as shown below. While easy to install and operate, a malfunction of any connectivity unit or interconnecting link could isolate the system from all upstream equipment.