power over ethernet poe (power over ethernet) refers to the power over ethernet (poe) in the existing ethernet cat 5. the technology of providing dc power supply for some ip based terminals (such as ip telephone, wireless lan access point ap, network camera, etc.) while transmitting data signals without any changes to the wiring infrastructure.
poe is also known as local area network based power supply system (pol, power over lan) or active ethernet. sometimes it is also referred to as ethernet power supply. it is the latest standard specification for simultaneous transmission of data and electric power by using existing standard ethernet transmission cables, and maintains compatibility with existing ethernet systems and users. poe technology can ensure the normal operation of the existing network while ensuring the safety of the existing structured cabling and minimize the cost. the ieee 802.3af standard is a new standard based on the power supply system over ethernet (poe). it adds relevant standards for direct power supply through network lines on the basis of ieee 802.3. it is an extension of the existing ethernet standard and also the first international standard for power distribution. the system composition of poe includes two parts: power sourcing equipment (pse) and power receiving device (pd). based on the ieee 802.3af standard, the system establishes information contact about the connection condition, device type, power consumption level and other aspects of the power receiving device pd, and supplies power to the pd through ethernet according to the pse.
power over ethernet (poe) cabling system is a certification project established by noa and china electronic energy saving technology association (ceta). noa provides product certification and system certification for different products.
product certification:
power over ethernet (poe) switch certification
power over ethernet (poe) cabling system certification (including 4 pairs of twisted pair cables, rj45 sockets, rj45 jumpers, etc.)
power over ethernet (poe) dc power supply equipment certification
power over ethernet (poe) power receiving equipment certification (including wireless lan access point, telephone, network camera, etc.)
system certification:
power over ethernet (poe) cabling link and cabling channel certification
end to end certification of power over ethernet (poe) system (including power supply equipment, ethernet switch, integrated wiring system, power receiving equipment, etc.)
○《power over ethernet (poe) engineering technical standard》
○ establish a more complete internal management system, improve the internal management and technical level, and stabilize the operation;
○ strengthen quality management and improve the quality of products and services through the participation of all staff;
○ improve work efficiency, reduce product cost, and comprehensively improve enterprise economic efficiency;
○ obtain the qualification of market access, enhance market competitiveness and seize the first opportunity;
○ obtain important evidences that customers and consumers can trust, enhance trust and continuous satisfaction to the enterprise;
○through professional authority certification, eliminate the trust crisis and save the energy and cost of repeated verification;
○ vip coupons for government procurement and major project bidding;
○ obtain the "green pass" of international trade and break through the technical barriers established between international trade;
○ expand the popularity of the enterprise and improve the enterprise image;
○ enterprise commitment is an important way to fulfill social responsibility and achieve sustainable development.
tel： 86-400 821 5138
fax： 86-21 3327 5843
email：noa@noagroup.com
