What are the communication equipments in power system?
Optical transmission (SDH), the electric terminal for access (PCM), data communication network equipment, dispatching data network equipment.
Administrative and scheduling switch, using industrial Ethernet switch, EPON equipment (including OLT, ONU, DWDM) in some places there are dense wavelength division equipment, power supply (including AC screen, DC screen, power rectifier, batteries), optical fiber distribution frame (ODF), digital distribution frame (DDF), VDF (audio distribution frame) and so on.
