KJJ12 mine intrinsically safe network switch adopts intrinsically safe design and is suitable for underground mines where there is a danger of gas and coal dust explosions. The switch supports IEEE802.3 store-and-forward switching mode, provides 100/1000Mbps fast Ethernet capability, and is a necessary communication product for building a comprehensive Ethernet network in coal mines. This product can perform remote management through the network, and realize functions such as ring network configuration and VLAN configuration.
The switch can not only convert RS485 protocol signals, CAN protocol signals and Ethernet protocol signals from subordinate equipment into optical signals and transmit them through Ethernet, but also process the information from the ring network and the upper-level network and transmit it to the lower-level devices, so as to achieve efficient real-time communication between different devices. The design of the DIP switch can realize equipment upgrade and restore factory settings. When there is a link failure on the port, the ALARM warning light will be highlighted to give an alarm, so that the fault can be quickly checked on site. The hardware adopts fanless, low power consumption, wide temperature and wide pressure design, and meets the requirements of national standards and industry standards through strict testing, and can be widely used in the field of coal mines.
Explosion-proof type: Mine intrinsically safe
Explosion-proof mark: Ex ib IMb
Port parameters：
a）Gigabit Optical Signal Interface Parameters：
①Number of interfaces：3
②Transmission mode: full-duplex TCP/IP optical signal transmission, single-mode fiber with a working wavelength of 1310nm；
③Interface Type：LC
④Transmission rate：1000Mbps
b）Fast Ethernet optical port：
①Number of interfaces：8
②Transmission mode: full-duplex TCP/IP optical signal transmission, single-mode fiber with a working wavelength of 1310nm；
③Interface Type：SC
④Transmission rate：100Mbps
c）Ethernet interface：
①Number of interfaces：5
②Transmission mode: full-duplex TCP/IP Ethernet electrical signal transmission
③Transmission rate: 10/100Mbps adaptive
d）RS485 signal interface parameters：
①Number of interfaces：4
②Transmission mode: half duplex, RS485
e）CAN signal interface parameters：
①Number of interfaces：2
②Transmission mode: half duplex, CAN
