Metals, Mining and Quarrying Industry Applications
FMC/Sunnyside Mine/Conspec Controls
A number of companies with mining industry applications transmit data from underground sensors to monitoring equipment on surface at mine offices using Data-Linc MDL500s on unshielded spare pair (high EMI) in main shaft cable bundle.
Lonestar
Lonestar transmits data between weigh scales and central control building, using MDL500s with AE-485 interface (compatible with RS485), superimposed on in-place RS-422 wires, solving ground plane shift problem.
Michigan Limestone
To transfer data between central control facility and outlying buildings, Michigan Limestone is using DOVE modems on their PBX telephone system eliminating the need to run dedicated data wires.
Open Pit Mine
A large open pit mine is using the Data-Linc Group SRM6200E wireless Ethernet radio modem with external antennas to communicate between a Master base unit at the server (Ethernet Hub) and an NEC laptop computer (remote unit) running Windows 95 and 3 Com Ethernet with PCM/CIA support.
Since the remote unit is mobile and could at times not have full line-of-sight to the Master a Data-Linc Group SRM6000 Radio Modem with an external antenna mounted at a central location is used as a Repeater to support the system. The remote, unit mounted in a pick-up truck, is able to travel to various locations within the open pit mine while maintaining communications with the Master.
The Data-Linc Radio Modems are providing reliable communications in this mine application even during periods of extremely cold temperatures.
Reynolds Aluminum
Reynolds is sending transducer output from crane cab to ground using Data-Linc DOVE with A-A1000 4-20 mA transmitter and receiver modules to transmit data over crane cab telephone lines. (Please note that the DDAA has replaced the A-A1000.)
Unit Electric
To communicate drill motor control and status signals from drill face on several shafts to central location on a multidrop network, Unit Electric is using Data-Linc A-A1000 Multiplexers and LCMs on 660VAC power lines that supply drill motors, avoiding installation of dedicated cables. (Please note that the DDAA has replaced the A-A1000.)
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