XJ127YL Mining Explosion-proof and Intrinsically Safe Hard Disk Video Recorder/Display Unit is a specialized explosion-proof terminal device designed for underground coal mine video surveillance systems, responsible for video processing, storage, and display. Primarily deployed in environments such as inclined shaft transport areas, mining faces, and underground control rooms, this equipment provides essential functions including video recording, multi-screen display segmentation, and supports Ethernet optical/electrical signal communication capabilities.

The ZJZ2-10/1140(660)M Integrated Lighting and Signal Protection Device is designed for use in underground coal mines containing coal dust and explosive gases (methane). It controls the power supply for lighting and signaling equipment rated at 127V, with a power input of 50 Hz, 1140V, or 660V.