MSHA Approved Network Installations in US Coal
NLT Active Control Technology Inc. (ACT) was tasked with provisioning an MSHA approved, remotely supportable integrated network system. The system was required to provode tracking, voice communications, and wireless networking for multiple operating underground coal mines. The system was required to meet PPL requirements such as tracking, system redundancy, 2-way communications, and 24-hour battery network backup.
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