I have written an article about the ASUS EA-N66 dual-band "N900" (more precisely, "N450") 802.11n access point/bridge/repeater. The features of the EA-N66 (Figure 1) are consistent with previous commitments, but based on my personal assessment of the device, it can cause problems in several places. For example, the device cannot change its assigned IP address and appears to be compatible with other Asus network devices. In order to better assess the potential of EA-N66 and to understand the extent to which the potential of this product can be further enhanced by future software upgrades, I decided to use it as an analysis object for this design analysis. Similar to other similar consumer devices, you can see the three screws that secure the base by opening the three rubber bases at the bottom. After removing the screws and disassembling the three antennas, the PCB can be easily removed. Figure 1: EA-N66. For more pictures on EA-N66, please visit the FCC website. The PCB in this article is the blue v1.3 version (Figure 2), while the FCC official website shows the earliest red v1.2 version. At the moment, it is not clear what is the difference between the two versions. Figure 2: The v1.3 version of the PCB is blue. The top of the PCB is very common. The RF subsystem of the three antennas (additional components are placed on the bottom side of the PCB). In the upper part, the Winbond W971GG6JB-25 1G DDR2 SDRAM is below it. On the right side of the SDRAM, along the edge of the PCB, you can see a mysterious four-pin connector - flip the PCB over to find the flags that indicate GND, RX, TX, and VCC functions. The connector is a 3.3V TTL serial port and may be used for debugging, production line diagnostics, and firmware programming (and reprogramming). Finally, the Ethernet connector can be seen on the bottom of the PCB with the power connector on the right and the RTL8211E GbE transceiver from its semiconductor partner, Raychem, on the left (Figure 3). Figure 3: The processing core of EA-N66 is the application SoC of Ralink Technology (now affiliated to MediaTek). In addition to the three mirrored antenna component groups mentioned above, the processing core of EA-N66 can be clearly seen in the middle right position of the bottom of the PCB - Application SoC. of Ralink Technology (now affiliated to MediaTek) and other semiconductors The system combines the MIPS32 74Kc CPU core with Imagination's 500MHz operating frequency. Below it is the Wanghong MX29LV640EBTI-70G 64Mb parallel interface flash memory. At the bottom left corner of the PCB, you can see two switches. Surprisingly, only one switch (through the through hole at the bottom of a device) is exposed to the outside as a reset button for a paperclip trigger. The function of another switch (both independent but synchronized with each other) is unclear. The ASUS EA-N66 includes seemingly robust hardware that is also used in network devices from ASUS and other manufacturers. Fortunately, subsequent firmware iterations can eliminate the defects of these hardware and implement additional functions. Made of high-quality soft TPU and hard PC materials. Matte clear gray backing can shows off the natural look of the phone while provides a great hands-feeling. Mobile phone case,phone case,soft phone case,soft tpu pc phone cases Dongguan City Leya Electronic Technology Co. Ltd , https://www.dgleya.com
Built-in 360 degrees rotating ring kickstand sets your hands free while watching video or more, and it also offers a comfortable grip to prevent accidental drops.
Metal plate in the back allows the case to be attached to the magnetic car holder when driving. (Note: Magnetic car holder is not included.)
Full body protection with shock-absorption corner and raised edge around screen and camera make this case shockproof, dust-proof and sand-proof. Precise cutout and design makes you easily access to all ports, buttons and all features.
The gap between the potential and status quo of ASUS EA-N66
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