Brand Di ship Model DJ-DX / 4 Product Description Quad signal mine 【Manufacturer: Shenzhen Di ship] signal mine - This product uses multi-level protection circuit, use the latest high-speed surge protection devices, reaction speed, output residual voltage, superior transmission performance Product Name: Quad signal mine Model: DJ-DX / 4 Voltage: 48V Brand: Di ship Origin: Shenzhen Color: Black Weight: 200g Size: 9.4 * 4 * 2.7cm installation space: not less than 10 * 6 * 5cm Usage: for mine all RS-485, RS-422 communications field / lightning / SPD fine surge protection. Four signal mine Description: Description: Di-ship four signal lightning protection device according to IEC61000-4-5, ITU-TK20 & K21 standard design, the use of multi-level protection circuit, use the latest high-speed surge protection devices, fast response, Output residual voltage, superior transmission performance; interface uses standard industrial terminals, easy to use, applicable to all areas of RS-485/RS-422 communications Lightning / lightning / SPD fine surge protection products using composite symmetrical circuit, common mode differential mode full protection, L, N can easily access, use aluminum alloy shell, sealing, dustproof, anti-corrosion function, installed in series connected high voltage pulse suppression on the line to protect the back-end equipment from lightning Industrial surge damage. Four signal mine features: remote control and intelligent community transport, water, electricity, gas four signal lightning parameters digital public address system instrumentation and industrial applications RS-485 field bus control of security monitoring equipment : Name four signal mine Model DJ-DX / 4 protective shell size line 4 9.4 * 4 * 2.7 cm nominal operating voltage Un 48 V Clamping Voltage 68 V nominal discharge current In (8/20) 5 KA Maximum discharge Imax (8/20) 1 0 KA response time tA <1 ns signal transmission rate Vs 1 ~ 100 Mbps shell material of fine grade aluminum enclosure protection class IP 20 protective housing protection class protection mode wiring terminals in series 3 Fine filtration pressure protective earth resistance Ω / diameter ≤ 4Ω 2.5 m Operating temperature range - 40 ℃ ~ +70 ℃ relative humidity of the indoor air temperature conditions of 30% to 90% Standard GBl8802.1, lEC61643-1 signal using four anti- lightning Note: 1: The Lightning connected in series, the products marked "output" All ports are connected to the protected equipment 2: In doing mine carefully grounded properly installed ground wire, if positive Negative line of the product, please distinguish between "positive", "negative" 3: lightning protection device is installed in the front-end, according to the conditions of the installation and construction of "four principles from the protective equipment as close as possible" to the construction: mine equipment needs regular inspections, please change occurs when the deterioration of the product, in order to avoid unnecessary loss of your 5: remember not live operations, construction should be checked after the closing run mine without exception 6: At present our mine products subject to ground, must be well grounded and grounding wire resistance must not be greater than 4 ohms straight.