Mining Explosion-proof and Intrinsically Safe Hard Disk Video Recorder and Display Unit

1. Introduction

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.

2. Main Features

The XJ127YL Mining Explosion-proof and Intrinsically Safe Hard Disk Video Recorder/Display Unit is equipped with an LCD panel offering a resolution of 1920×1080, delivering clear and detailed visual output. This provides technical support for handling potential hazards and analyzing accident causes in underground coal mines. The device is suitable for use in explosive environments containing methane or other combustible gases, typically found in coal mine shafts with high explosion risks.

3. Working Principle and Structural Features
The monitor is powered by an AC127V power supply and incorporates an integrated hard disk video recorder. The recorder transmits the captured electrical signals via cables to the display unit, which then renders the corresponding video output.

Structurally, the device consists of a power driver board, an LCD panel, a hard disk video recorder with storage drives, an explosion-proof enclosure, and a mounting base. The LCD panel is securely housed within the explosion-proof enclosure and is viewed through a tempered glass window.

4. Electrical Performance

4.1 Power Input
   Operating Voltage: AC127V
   Input Apparent Power: ≤200VA

4.2 Display Parameters

• Display Size: 24 inches
• Horizontal Resolution: ≥500 TVL
• Resolution: 1920 x 1080
• Aspect Ratio: 16:9
• Playback Horizontal Resolution: ≥300 TVL

• Number of Interfaces: 7 channels
• Transmission Method: TCP/IP
• Transmission Rate: 10/100/1000 Mbps auto-negotiation
• Maximum Transmission Distance: 50m

• Number of Interfaces: 6 channels
• Transmission Method: TCP/IP (Wavelength: 1310nm)
• Transmission Rate: 1000 Mbps
• Transmit Optical Power: -15 dBm to 0 dBm
• Receive Sensitivity: < -25 dBm
• Maximum Transmission Distance: 20 km

4.5 Nominal Storage Capacity: 8TB (Mechanical Hard Disk Drive)

4.6 Number of Supported Camera Inputs: 16 channels.

• Supports Ethernet optical signal and Ethernet electrical signal communication.
• Capable of real-time video recording and storage.
• Features playback controls including timeline search, fast forward/rewind, play/pause, and video review operations.
• Utilizes a color LCD panel capable of displaying monochrome/color images. Supports flexible video layout switching, allowing for single-channel display or simultaneous multi-screen display in 4, 9, or 16 split-screen configurations.

5. Weight:≤62kg

6. Size: 650x250x 481 (mm)