Tianjin Unicom Optical Fiber Replaces Copper Cables

On the afternoon of the 28th (Thursday), Tianjin Unicom officially launched the “Best Quality and High-Quality Service” campaign to provide high-quality broadband based on "Fibre Broadband" to the public and improve the quality of broadband services.

It is understood that the majority of users in this city are still using traditional ADSL broadband services. Since such broadband uses copper transmission, the bandwidth is currently only 4 trillion. With the in-depth development of the "fiber-to-the-home" project, Tianjin Unicom has begun a comprehensive upgrade of the existing copper cable broadband throughout the city, and free-to-home fiber-optic cables will be installed at home. According to reports, after broadband is upgraded to fiber-optic broadband, the broadband speed will increase to 20 megabits or even 100 megabits, and the speed of the Internet will become extremely fast. Browsing high-definition movies will no longer cause screen jams. In addition, Tianjin Unicom has also launched a number of broadband service initiatives: 100% acceptance of broadband installation services; broadband installation, transfer every other day, 48 hours of broadband service in urban areas, 72 hours of broadband service in villages and towns, and 24 hours of failure of broadband lines. Within the repair, etc., repair hotline 96796999 will achieve 7 × 24 hours of uninterrupted service.

According to another report, at present, the city's broadband access rate has reached about 30%, and more than 100,000 households have already used fiber-optic broadband. In the first half of this year, Tianjin Unicom will also upgrade more than 1,000 residential communities to optical fiber access standards and expect to achieve 100% coverage of optical fiber broadband within three to five years.

50Mm Dc Spur Gear Motor including 50RS545, 50RS555 and 50RS775 Dc Spur Gear Motor. 50mm DC Spur Gear Motor sometimes is used on welding machines and other devices need high torque. 50mm DC Spur Gear Motor has a better gearbox strength.
50mm dc spur gear motor

50mm dc spur gear motor has 4 kind of stages.
For the 2 stages gearbox, we have 9 gear ratio;
For the 3 stages gearbox, we have 21, 25.5 gear ratios;
For the 4 stages gearbox, we have 50, 60, 72 gear ratios;
For the 5 stages gearbox, we have 118, 141, 170, 205 gear ratios;

Number of stages 2 3 4 5
Reduction Ratio 9 21, 25.5 50, 60, 72  118, 141, 170, 205
Gearbox Length(L) mm 20.4 24.9 29.4 33.9
Breaking Torque(kg f.cm) 25 30 90 90
Gearbox efficiency 81% 72% 65% 59%
50mm dc spur gear motor

50mm DC Spur Gear Motor

50Mm Dc Spur Gear Motor,50Mm Gear Motor,50Mm Dc Gear Motor,50Mm Planetary Gear

SHENZHEN DONGMING MOTOR CO., LTD. , http://www.dmdcmotor.com