An Optical Distribution Frame (ODF) is primarily used to connect and schedule optical fibers and optical cables. It is applicable to fiber intersections between an optical transmission network and optical transmission devices as well as between optical cables in an access networks.
ODF with pigtails and adapters contain one ODF, adapters and pigtails. Parts are shipped separately; the installer assembles the pigtails and adapters in the ODF on site. Boxes can be supplied to contain from 6 to 144 fibers. All ODFs are withdrawable and designed for mounting in 19" racks. They are equipped with splice holder and guiding for fibers. We can also supply you with other combinations on request.
Optical Distribution Box,Fiber Optic Distribution Box,ODF Frame,Indoor Frame ODF Chengdu Xinruixin Optical Communication Technology Co.,Ltd , https://www.xrxoptic.com
4K ultra high definition television has become a popular home appliance product. With the emergence of a large number of products, the price is no longer superior. This year, Sony introduced the X8500C series of new 4K Android TVs, which currently have a minimum starting price of approximately US$1,500 (approximately RMB 9550) and have received some attention. Below, take a look at the actual use of this TV.
Sony 55X8500C Design and Hardware 
The Sony X8500C series is available in 55, 65, and 75-inch sizes. The 55-inch 55X8500C that participated in the evaluation was a side-lit LED backlight, while the 65- and 75-inch models were full-array LEDs. Due to the positioning of the midrange, its design has not undergone major changes, you can find the elements of the previous Sony mid-range TV, such as ultra-narrow frame, metal bracket type base and so on. 
In terms of configuration, it has four built-in HDMI 2.0 (supports HDCP 2.2), three USB interfaces, and more. Sony also has two remote controls for it, one for the traditional and one for the touchpad, which is more suitable for Android TV system operation.
Sony 55X850C picture quality and system 
The foreign media Reviewed tested the performance of the Sony 55X8500C. The test movie was Mad Max. It can be seen that its rich colors and bright, side-lit LED make some of the dark and bright scenes have a better performance. In addition, the improved "Motionflow:True Cinema" movie mode can suppress the soap opera effect of watching movies in traditional sports mode while retaining details and reducing blurring. 
However, due to lack of quantum dots, HDR and other new technologies, Sony 55X8500C does not perfectly represent all colors, especially red, after all, the traditional LED is still mainly blue-green, so in some scenes you will feel red is closer to orange. Of course, after all, Sony 55X850C positioning midrange, this is acceptable. 
Sony 55X8500C system aspects:
Sony 55X8500C equipped with Android TV system, the layout of the interface is slightly more complex, but well adapted to the 4K screen. However, the Android system may be slightly larger for the TV, while the mid-range Sony 55X8500C does not have the strongest processor, so it will occasionally have a Caton phenomenon. In addition, even if Android has a large number of applications, but only after the television certification to achieve the perfect display ratio, it seems that fragmentation is also a phenomenon that Android TV can not avoid. For now, Android TV seems to be at a strange stage: as a TV interface, it is not concise; at the same time, it does not completely inherit the functions and applications of the mobile version, and the whole experience is a little messy.
summary
In general, the Sony 55X8500C is a full-fledged 4K TV with moderate price and overall picture quality. From a different point of view, it may be moderate or comprehensive. For the average user, Sony 55X850C may be a good choice, after all, quantum dots, HDR and OLED TVs are too expensive, and low-end models may not meet the quality requirements.