Area Remote Terminal Unit (A-RTU) – a stand-alone, programmable cluster controller for up to 8 remote terminal units (RTUs). The A-RTU provides an alternative to PC based Monitor and Control Systems without sacrificing future expandability to a System Control Computer (SCC) or basic functionality within the Telemetry Monitor and Control System.

• Remote Terminal Unit (RTU) – These units collect, store and forward information and / or monitor and control remote devices on a peer-to-peer communications scheme. This RTU utilizes an open architecture and open communications protocol known as OpenLINK™ and can be easily networked by radio, phone, cellular, RS 232 cable, RS422 / IEEE 485, fiber optic or internet. RTU types available are Expandable (E-RTU), Midi (D-RTU), Mini (M-RTU), Micro (µRTU), PLC or custom RTU.
• Auto Dialing Alarm System with or without a Synthesized Voice Telephone Dialer. The LVDialer™software developed by DFA is the interface to the optional Synthesized Voice Dialer and resides on the System Control Computer (SCC).
• Base Radio Modem (BRM) houses the radio located at the SCADA System’s base of operation. LVMAC™ software developed by DFA is the interface to the BRM and resides on the System Control Computer (SCC).
• Radio Repeater.
• Control Panels – motor or pump.
• Controllers – for local control.
• Electrical Panels or Electrical Controls to UL specifications.
• Circuit Boards – DFA manufactured RTU circuit boards are stocked inhouse and can be delivered next day.
• Custom Design of Electronic Products.