MANY different communications media can be considered
for communications in EMS/SCADA and Distribution
Dispatching Center Projects [1]–[4].
These technologies are described in subsequent sections:
• Twisted Pair Metallic Cable
• Coaxial Metallic Cable
• Fiber Optic Cable (either Optical Power Ground Wire
(OPGW), All Dielectric Self Supporting (ADSS),
Wrapped types (WOC)
• Distribution Line Carrier (DLC)
• Power Line Carrier (PLC)
• Satellite (VSAT, LEO, Others)
• Leased Service
• VHF Radio (Mobile)
• Point-To-Point UHF Radio
• Multiple Address Radio System (MARS) 400/900 MHz
UHF Radio
• Trunked Mobile UHF Radio
• Spread Spectrum UHF Radio (Monitor frequency for potential
interference before installation)
• Microwave Radio (2–40 GHz)