原装级联型多路切换开关

较简单的开关有二片名叫“触点”的金属，二触点接触时使电流形成回路，二触点不接触时电流开路。选用接点金属时需考虑其对抗腐蚀的程度，因为大多数金属氧化后会形成绝缘的氧化物，使接点无法正常工作。
GSM-5801
Product Name : 5 in 8 Multiswitch
Model : GSM-5801
Switching Voltage/Signal :
13/18V、0/22KHz
Connectors:“F” type female
Product features:



Excellent quality tinplate housing and exquisite plastic case shell attached, making installation convenient
Excellent quality component, professional amplification design and low loss
An external 20V、700mA DC power offering more stable operation
13/18V、0/22KHz supplied by satellite receiver through coaxial cable to switch corresponding port
Capable of connecting four SATV **s, one ANT ** or FM broadcast simultaneously
Four SATV **s switched through 13/18V、0/22KHz
Distributed into eight subscribers to use simultaneously and no mutual interference
Applicable to multi-satellite and multi-receiver usage


Parameter description:



Item
Specification


Item Specification
Frequency Range ANT 5-860(MHz) Return Loss ANT Input 12(dB)
Frequency Range SAT 950-2150 (MHz) Return Loss Outputs 8(dB)
Insertion Loss ANT 5(dB) Output Level ANT 85(dBuV)
Insertion Loss SAT 3(dB) Output Level SAT 100(dBuV)
Isolation In-In SAT 25(dB) Normal Working Voltage 12-20 (V)
Isolation In-In SAT/ANT 25(dB) DC Power Consumption 45(mA)
Isolation Between Outputs 25(dB) Supply Voltage 20V（±1）700mA
Switching Isolation SAT Inputs 28(dB) Temperature Range -20℃-60℃
Return Loss SAT Inputs 10(dB) Impedance(all ports) 75(Ω)

Company profileHome > Company profile
Zhongshan Visat Electronics Co., Ltd.
Zhongshan Visat Electronics Co., Ltd. is founded in Zhongshan (Zhuhai) and approbated as high-tech industries by Committee of Science and Technology. Visat takes “Customer Satisfaction” as our goal. Visat strive for "Higher starting point, Higher quality, and Higher efficiency", and dedicate to promoting China's satellite and cable television industries.
Zhongshan Visat Electronics Co., Ltd. is one of the most professional high-tech enterprises, which specializes in developing, manufacturing and marketing SATV and CATV equipments. Visat adopts advanced technology, equipments and instruments in order to offer high quality products in varied forms. Our main products includes DiSEqC switch, MultiSwitch, 0/22KHz controlled switch, Satellite Splitter, In-Line Amplifier, Satellite Finder, A/V Sender , IR Remote Extender, Indoor Splitter, Indoor Tap, Outdoor Splitter, Outdoor Tap, CATV Amplifier, Modulator, Wall Sockets, Isolator, Attenuator, Filter, Lightning protector, SAT/ANT Diplexer,etc.
Zhongshan Visat Electronics Co., Ltd takes “Technical Innovation” as developing concept. Because of Advanced R & D team and good relationship between Visat and Clients all over the world, Visat finds its development direction, and never stops our step to innovate. We continuously promote new model products to fit for the trend of SATV and CATV development, so that we can meet the needs of our customers to support their businesses. We believe that we can make more progress through cooperation and common development.
中山市伟讯电子科技有限公司属中山（珠海）市科学技术**认定的**产业。公司以客户满意为目标，以“高起点、高品质、高效率”为经营理念，致力于推动我国卫星及其有线电视产业的发展。
中山市伟讯电子科技有限公司是一家专业卫星电视及有线电视*材开发、生产、销售为一体的高新企业，公司产品均采用国内外先进技术、设备和仪器生产，产品种类丰富多样，卫星设备主要产品：DiSEqC切换开关、0/22K切换开关、多路切换开关、功分器、卫星线放、混频器、２.4G/5.8G音/视频无线传送器；有线电视设备主要产品：室内用户放大器、干线放大器、用户盒、室内分支分配器、野外分支分配器、集中型和阶梯型分支分配器等等。
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中山市伟讯电子科技有限公司属中山（珠海）市科学技术**认定的**产业。公司以客户满意为目标，以“高起点、高品质、高效率”为经营理念，致力于推动我国卫星及其有线电视产业的发展。


中山市伟讯电子科技有限公司是一家专业卫星电视及有线电视*材开发、生产、销售为一体的高新企业，公司产品均采用国内外先进技术、设备和仪器生产，产品种类丰富多样，卫星设备主要产品：DiSEqC切换开关、0/22K切换开关、多路切换开关、功分器、卫星线放、混频器、２.4G/5.8G音/视频无线传送器；有线电视设备主要产品：室内用户放大器、干线放大器、用户盒、室内分支分配器、野外分支分配器、集中型和阶梯型分支分配器等等。


中山市伟讯电子科技有线公司以“严谨创新、诚信务实、持续改进、客户满意”为目标构建公司文化，团结员工树立“以人为本”的核心价值观念，不断提升产品品质，改善生产工艺，以增强自己的行业竞争力。


中山市伟讯电子科技有限公司以技术创新为发展理念，不仅拥有自己的研发团队，也同国内多家业内企业保持稳固的合作关系，这使得我们得以敏锐的洞悉卫星及有线电视设备的发展方向，进而推出适应市场用户需求变化的新型产品，满足国内外更广泛的需求。我们坚信我们能够在合作中不断进步、共同发展。
看结构：较通用的开关结构有两种：
1、滑板式和摆杆式。滑板式开关声音淳厚，手感优雅舒适；摆杆式声音清脆，有稍许金属撞击声，在消灭电弧及使用寿命比传统的滑板式结构较稳定，技术成熟。
2、双孔压板接线较螺钉压线更安全。
因前者增加导线与电器件接触面积，耐氧化，不易发生松动、接触不良等帮障；而后者螺钉在坚固时容易压伤导线，接触面积小，使电件易氧化、老化，导致接触不良。
比选材：开关纯银导电能力强，发热量低，安全性能高，触点采用铜质材料则性能大打折扣；插座材料采用锡磷生铜片可得到配合较好的强度、韧性、弹性等指标，比一般黄铜作簧片的插座耐用数十倍，且较少有插板时强烈的电弧烧坏插座的现象；镀金的簧针较难氧化，性能稳定，能保证音质的清晰真实，数据传输的快速准确。