Lately many video and communication devices are using advanced technology called POE or Power Over Internet. Wiring a house for communications will enable devices that are of the POE technology to be installed without the need for additional power supply wiring. Commercial and industrial installations use POE as well.

In manufacturing or process systems there are many types of data wiring and communications systems between PLC’s and transmitters. Some PLC communications can require Ethernet for local communication or RS 485 or Modbus for longer distances. Fiber Optic cables are used for very long distances. Process controls that monitor pressure or temperature can use analog or digital signals. It is important to know there is a difference and realize there is a need to determine the correct wiring method to have an operational system. It is typically the IT person who lays out the system and tells the electrical contractor which communication type will be used and which wiring method is required. If there is no IT person, the contractor needs to research the requirements.

Daley Electric Company has installed many types of communication systems over the years. The wiring needs to be installed to ensure there is no interference from any damaging influences such as magnetic fields. It is important to know the mode of communication and the proper wiring cables plus method are used. This will ensure proper operational guidelines are met. New technologies are constantly introduced. It is important to stay current and research the new technologies, controls and communications that are used in industry.