The transmission rate of wireless routers is getting faster and faster, and the requirements for router antennas are getting higher and higher. Netgrear's latest R8000 router external antennas have reached as many as 6. Although some dual-band wireless routers use antenna multiplexing technology to have only two antennas, in the case of concurrent transmission of data between 2.4G and 5G, the antenna will quickly switch in different frequency bands, so that the dual-band router actually has only one frequency band in operation in the same time, and the data transmission rate of the wireless router is greatly reduced.
Today, the editor received a TOTOLINK A850R gigabit dual-band wireless router. Some netizens may feel unfamiliar with the TOTOLINK brand, but if we talk about ipTIME, many people should have come into contact with this brand of network products. ipTIME is a Korean network equipment provider that has been established for more than 10 years. ipTIME's network products have entered the Chinese market since 2005. In 2012, ipTIME has officially changed its name to TOTOLINK except South Korea.
Unboxing:
Compared with many cost-saving wireless routers on the market, the packaging box of the TOTOLINKA850R wireless router is much larger, and the size of the packaging box reaches 280mm x 260mm x 75mm. The outer packaging of the A850R wireless router is very exquisitely printed, and some texts on the front and sides are more eye-catching in gold fonts. From the front text of the packaging box, we can see that the A850R wireless router supports 802.11ac protocol, and the dual-band concurrent transmission rate of the 2.4G/5G wireless band can reach up to 1200Mbps. Dual-band and high-speed wireless transmission can fully meet the user's requirements for network use during video, games and large files transmission.
TOTOLINK The packaging box of the A850R wireless router is made of injected with easily degradable environmentally friendly materials. The router packaging box contains one A850R wireless router host, one router bracket, one power adapter, one RJ45 network connection cable, installation guide and card repair and one TOTOLINK product manual each. The power adapter attached to the
A850R wireless router is produced by Shenzhen Hongben Electronics Company, and the product has passed the national 3C safety certification. The input voltage of the adapter is 100-240V AC current, and the wide amplitude input voltage allows the A850R to be used all over the world; the output voltage of the adapter is 12V DC, which can provide a maximum output current of 1A and a maximum output power of 12W. This output power is more than enough to cope with a wireless dual-band router without a built-in hard disk.
TOTOLINK A850R wireless router uses a pure white plastic shell, which looks very simple and beautiful from the outside. Most routers on the market design Reset and WPS buttons on the back of the router. If there are new wireless devices that need to be connected to the wireless network through WPS, users need to turn the back of the router to press the WPS button. If there are multiple RJ45 network cables connected on the back of the router, it will make the originally sorted network cable very messy. The A850R wireless router designs Reset and WPS buttons on the front panel of the router. Users can press WPS or Reset buttons from the front at any time without moving the router, saving the trouble of reorganizing the network cable. When the A850R wireless router is placed vertically in a bracket, the lower end of the back of the router is the power input interface, and there are 4 10/100M RJ45 LAN interfaces above the power port, and 1 10/100M RJ45 WAN interface at the top. Whether the router is placed vertically or horizontally, all wired connections are on the back of the router. Users can bundle and organize all input wires to avoid messy wires affecting the visual effect of the home. The biggest feature of the A850R Gigabit dual-band wireless router is the use of 4 external antennas for wireless data transmission, of which 2 are dedicated antennas for the 2.4G frequency band and 2 are dedicated antennas for the 5G frequency band; the A850R router independently completes wireless transmission in the 2.4G and 5G frequency bands, and does not interfere with each other, avoiding the problem of the total data transmission rate of some wireless routers using antenna multiplexing technology that requires uninterrupted switching of different frequency bands to affect concurrent data; TOTOLINK A850R supports MIMO multi-antenna synchronous transceiver technology, and the wireless transmission protocol supports 802.11ac/a/b/g/n, supports up to 300M wireless transmission rate in the 2.4G frequency band, and supports up to 867M wireless transmission rate in the 5G frequency band.The four external antennas of the
A850R wireless router are not removable. The 4 antennas can be rotated to different angles according to the user's position of the router. The pure white appearance and rotatable antenna are easily matched with the user's home environment.
From the text logo on the TOTOLINK A850R wireless router antenna interface, you can see that these four external antennas are divided into two groups: 2.4G and 5G frequency bands. The wireless communication of different frequency bands of the router completes the transmission and reception work concurrently through the corresponding antenna. The wireless gain of the external antenna is 5dBi. TOTOLINK specially customized the external antenna for the A850R wireless router. There is a TOTOLINK LOGO logo on the top of the antenna.
A850R wireless router comes with a vertical bracket. If the user needs to vertically place the router, just use the vertical bracket to snap into the bottom position of the router.
In summer high temperature season, the ventilation and cooling design of the wireless router is directly related to whether it can work stably. The top, bottom and side of the TOTOLINK A850R wireless router is designed with a large number of ventilation holes, which is very conducive to dispersing the heat during the working of the wireless router through the air to the outside, thereby reducing the internal temperature of the router and allowing the router to work stably at high temperatures.
TOTOLINK There are 9 LED indicators on the front of the A850R wireless router. Through these indicators, users can immediately understand the working status of the router.
Disassembly:
Remove the 4 screws from the bottom of the A850R, and it is easy to open the bottom shell of the router to expose the internal structure of the router. The internal design and layout of the router appear dry and reasonable. There are two limit snaps on the plastic case to fix the circuit board of the router. All integrated chips of
A850R are arranged on the front of the circuit board. You can see from the circuit board that the A850R wireless router adopts Realtek Realtek design solution. The router's main control uses Realtek RTL8197DL chip, with a maximum working frequency of 660M. The chip integrates 2 PCIe interface circuits, 2 USB interface circuits, and 5 10/100M switch interface circuits. Unfortunately, the A850R does not design the peripheral circuits of PCIe and USB interfaces. If there is a USB interface, the router can be used as a downloader at the same time. The 2.4G and 5G wireless processing circuits on the circuit board are not shielded using metal covers. Fortunately, the wireless processing circuit occupies a large space on the circuit board and is far away from other functional circuits, otherwise the wireless signal processing circuit will be easily disturbed or interfered with the operation of other surrounding circuits.
TOTOLINK A850R wireless router uses a 4M (32Mbit) Gigabit GD25Q32BSIG SPI Flash chip storage router firmware system; runs the memory chip using a 64M Jinghao ESMT M14D5121632A DDR-2 SDRAM.
A850R wireless router uses RTL8192ER as the main control chip of the 2.4G wireless frequency band. The chip supports 802.11b/g/n wireless transmission protocol, the maximum wireless transmission rate can reach 300Mbps, and supports 2x2 MIMO antennas; the 5G wireless frequency band uses a RTL8812AR chip, the RTL8812AR chip supports 802.11a/n/ac protocol, and the maximum wireless transmission rate is 867Mbps, which also supports 2x2 MIMO antennas. The concurrent transmission rate of the 2.4G and 5G wireless frequency bands is 867M+300M. The power processing circuit of the router uses a high-frequency magnetic core transformer. The 12V input power supply of the power adapter is processed by this part of the circuit and outputs different voltage values for each chip to use. The two keys
Reset and WPS are designed to be installed on the circuit board in a staggered position. This design method effectively prevents the user from accidentally touching the Reset key when pressing the WPS key. The RJ45 Ethernet interface behind the
A850R wireless router uses a 4-bit integrated socket and a 1-bit socket. It uses two different color sockets to distinguish the local area network and wide area network functions. Each socket has 8 copper cores.
Each external antenna base of the wireless router is designed with a gasket, instead of being stuck directly on the shell like many wireless routers, to avoid the problem of loose antennas caused by long-term use of the router.The external antenna of the router is directly soldered to the circuit board. It is estimated that the user will not replace the 5dBi high-gain antenna. Directly soldering the signal transmission line on the circuit board can reduce the signal attenuation problem caused by using the antenna socket, and at the same time, it can avoid poor contact of the antenna connector.
(Please continue to pay attention to the next issue of Lei Technology's TOTOLINK A850R wireless router signal and application evaluation)
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