KJJ148 Mine Explosion proof Switchboard

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KJJ148 Mine Explosion proof Switchboard KJJ148 Mine Explosion proof Switchboard Product Summarize KJJ148 flameproof and intrinsically safe network switch (hereinafter referred to as "explosion-proof switch"), the converter is flameproof and intrinsically safe, explosion-proof mark Exd [ib] I, used in coal with gas and dust explosion hazardous locations. The Explosion proof Switchboard allows installation in a coal mine gas explosion in hazardous dust and gas environment, used to make the downhole devices can be connected to the switch for data exchange with the ground, remote control and remote monitoring. Ground computer can connect to the switch of the downhole device management, network computers through a switch associated equipment for downhole data acquisition information and control management. KJJ148 Mine Explosion proof Switchboard Working Conditions Ambient temperature: 0 ℃ ~ +40 ℃; Relative Humidity：＜95%（+25℃）； Atmospheric pressure：80KPa～106 KPa； Mechanical environment: No significant vibration and shock of the occasion. Don't in the strong electromagnetic field or the use of mobile phone electromagnetic shielding environment, available in methane and coal dust explosive used in the environment of coal mine, but shall not be used in the case of containing corrosive gas. KJJ148 Mine Explosion proof Switchboard Model Meaning KJ: mine monitoring and control products or equipment J: Switch 148: Registration No. KJJ148 Mine Explosion proof Switchboard Parameters Power supply a）Input voltage：127V/220V/380V/660VAC/50HZ (transformer tap mode input) b）Enter Apparent Power (VA): ≤ 150 Standby Power a）Use HYS1272 12V/7.2AH two lead-acid batteries in series b） charging voltage: 18V ~ 28V c）Discharge cut-off voltage: ≥ 18V d）Conversion time: ≤ 1S e）working time: ≥ 2h Ethernet optical ports a) transfer port: 2 b) transmission mode: TCP / IP Ethernet optical signal transmission c) Transfer rate: 1000M bit / s d) Connection: LC switch e) Transmit Power: -14 ~ 1dBm (wavelength: singlemode 1310nm) f) Receiving sensitivity:-24dBm CAN signal transmission interface a）transfer port Quantity: 1 channel b）Transmission mode: master-slave, half-duplex, unipolar c）Transfer rate: 5Kbps d）Maximum transmission distance: 5km (use MHY32, MHYVRP, MHYVR cable, wire cross-sectional area of not less than 1.5mm2) e） the signal peak voltage: 1 ~ 5V KJJ148 Mine Explosion proof Switchboard Product Function 1、with Ethernet optical signals between the redundant ring network data exchange capabilities; 2、 with optical and electrical interfaces between the data exchange capabilities； 3、with the electrical interface between the bi-directional data transfer capabilities； 4、with a CAN bus transmission function； 5、 with RS484 bus transfer functions.

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Shandong China Coal Industry & Mining Group

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