专业订制级联型多路切换开关

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。

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.

眼观：一般好的产品外观平整、无毛刺，色泽亮丽和其材料采用优质abs+PC料，阻燃性能良好，不易碎。有的产品表面虽光洁，似乎涂了一层油，但色泽苍白、质地粗大，此类材料阻燃性不好，可以用火点燃试试它的阻燃性怎么样。要是点着很快熄灭，则为好的塑料，否则就是很差的塑料。
手按：好的产品面板用手不会直接取下，必须借助一定的**工具，而一般的非主流中低档产品则很容易用手取下面盖，造成家居和公共场所的不雅。选择时用食指、拇指分按面盖对角成端点，一端按住不动，另一端用力按压，面盖松动、下陷的产品质量较差，反之则质量可信。
耳听：轻按开关功能件，滑板式声音越轻微、手感越顺畅，节奏感强则质量较优；反之，启闭时声音不纯、动感涩滞，有中途间歇状态的声音则质量较差。

按照用途分类：波动开关，波段开关，录放开关，电源开关，预选开关，限位开关，控制开关，转换开关，隔离开关，行程开关，墙壁开关，智能防火开关等。
按照结构分类：微动开关，船型开关，钮子开关，拨动开关，按钮开关，按键开关，还有时尚潮流的薄膜开关、点开关。
按照接触类型分类：开关按接触类型可分为a型触点、b型触点和c型触点三种。接触类型是指，“操作（按下）开关后，触点闭合”这种操作状况和触点状态的关系。需要根据用途选择合适接触类型的开关。
按照开关数分类：单控开关、双控开关、多控开关、调光开关、调速开关、防溅盒、门铃开关、感应开关、触摸开关、遥控开关、智能开关、插卡取电开关、浴霸**开关。

看标识：市场上常用的家庭一般开关的额定电流为10A，插座电流为10A或16A以上，
认品牌：**产品经时间、市场的严格考验，是消费者心目中公认的安全产品，无论是材质、品质均严格把关，包装、运输、展示、形象设计各方面均有优质的流程，**电工产品不仅是一种安全电工功能用品，更是一件件精致、优雅，折射出高雅文化品味的艺术品。
如今是一个追时尚的时代，电工用品虽然不是一种大众日用消费品，但和手机一样，精美绝伦的款式、风格各异的设计，*具匠心的创意均是为了生活更安全、更舒适。
其实，无论从哪个方面来说，家庭选购应选用一些名优品牌产品，这些产品不仅品质优良，款式新颖，规格多样，更重要的是安全可靠。
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。