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| No.8858882
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Information Name: | Supply DDF Digital Distribution Frame, DDF Digital Distribution |
Published: | 2012-04-14 |
Validity: | 365 |
Specifications: | Multiple |
Quantity: | 10000.00 |
Price Description: | |
Detailed Product Description: | Item No.: YL-SP03 Product Category: Digital Distribution Frame> 1, the environmental requirements 1.1 Operating Temperature: 5 ℃ ~~ 40 ℃; relative humidity: no more than 85% (30 ° C); atmospheric pressure: 70 ~ 106Kpa; storage humidity: -25 ℃ ~ +55 ℃. 2, the electrical properties 2.1, the work rate: 2Mbit / s, 8Mbit / s, 34Mbit / s, 45Mbit / s, 140Mbit / s, 155Mbit / s,; 2.2 Characteristic impedance: 75Ω (nominal value). 2.3, coaxial connector contact resistance; the outer conductor is not more than 2.5mΩ after mechanical durability test of its value-added is not greater than 2.5mΩ; inner conductor is not more than 10mΩ after mechanical endurance test of its value-added is not greater than 10mΩ . 2.4 Insulation resistance: the connector between the outer conductor, the insulation between the inner conductor and the cell plate metal resistance should be greater than 1000MΩ measuring circuit DC voltage is 500V ± 50V. 2.5 Withstanding Voltage: Connect the inner and outer conductor between the inner conductor and the cell plate metal should be able to withstand a frequency of 50Hz, the effective value of the role of 1000V AC voltage 1min without breakdown and arcing. 2.6, the degree of crosstalk defense in the back line: not less than 70dB (50kHz ~ 233MHz) 2.7 Insertion Loss: 0.3dB (50kHz ~ 233MHz) 2.8 Return loss: not less than 18dB (50kHz ~ 233MHz) 3, the mechanical properties 3.1, the pull-off strength: coaxial connectors and cable connected to anti-cable tensile force should be greater than 50N. 3.2, mechanical durability Coaxial connector plug 1000, shall comply with the provisions of line in standard 2.3.1.3,2.3.1.7,2.3.1.8,2.4.2,2.4.3 and 6.2, and the contact surface is still the plating layer shall not be exposed substrate material . 3.3 Digital Distribution Frame all parts of the materials used should have antiseptic properties, such as corrosion resistance should be treated with preservatives; its physical and chemical properties must be stable; a variety of materials must be compatible. 3.4 Digital Distribution Frame the combustion characteristics of the structure of the non-metallic materials shall comply with the requirements of the test A GB/T5169.7-1985 standard. 3.5, the conductor elastic material should be used bronze, tin bronze. 3.6, coaxial connector inner conductor and the contact area should be plated an intermediate layer (buffer layer), then the thickness of the gold-cobalt alloy plating |
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Copyright © GuangDong ICP No. 10089450, Xiaolin Town, Cixi City, easy communications equipment factory. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 13347 visitor
Copyright © GuangDong ICP No. 10089450, Xiaolin Town, Cixi City, easy communications equipment factory. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility