Wireless LAN product lineup
We are only connected to wired LAN terminals such as hotels, and the Internet by Wi-Fi (wireless LAN) communication becomes available easily.
It is router equipped with Wireless. We can connect PC, TV, smartphone, game console in Wireless.
We can make even PC which does not carry wireless LAN Wireless by connecting wireless LAN adapter.
It is access point which makes wired LAN Wireless.
Extend radio wave of Wireless router which has been already installed at home; electric wave of wireless LAN widely!
We introduce wireless LAN router, wireless LAN-related product of ELECOM including wireless LAN adapter. We are based on the biggest transmission rate, range (structure or size of building), number of people, which standard of IEEE 802 .11 that electric wave reaches, or, as for the main point to choose Wireless router as, it is security technology, the number of the ports of wired LAN port (presence). Generally, there is image of "fast thing = high efficiency of the biggest transmission rate", but product which is most suitable by use environment and Uses is different each. Please see Specifications page of each product. In addition, we introduce about products to have you use main phone (router), cordless handset (adapter), access point, repeater of wireless LAN for specific Uses here.
Standard of wireless LAN
11ac, 11n, 11a, 11 g, five of 11b are in standard of used wireless LAN mainly now. It is necessary for each apparatus to support the same standard to communicate. Many products support plural standards. Person having wireless LAN apparatus will already choose product corresponding to standard same as apparatus on hand. When we purchase newly, product of 11ac conformance that is the latest standard is recommended. Transmission rate largely in comparison with conventional standard improves.
|Standard name||The biggest transmission rate||Use frequency band||Features|
|1300Mbps/867Mbps/433Mbps (it varies according to product)||5GHz||We improve 11a and expand band more than 11n. New standard that greatly raised line speed by raising data compression rate. It is hard to receive electric wave interference like 11a, but transmission range is short and is poor at obstacle.|
|54Mbps||5GHz||Because there is little electronic equipment using 5Ghz obi, it is hard to receive electric wave interference. On the other hand, transmission range is short and is poor at obstacle.|
|11Mbps||2.4GHz||It is not high-speed, but introduction cost is low. Transmission range is long and is strong in obstacle.|
(.11 g of IEEE 802)
|54Mbps||2.4GHz||Transmission range is long and is strong in obstacle. On the other hand, besides, 2.4GHz band has much electronic equipment using, and electric wave interference is easy to happen.|
(it varies according to product)
|2.4/5GHz||It is compatibility in 11b/g/a. It supports band of "2.4/5GHz" both sides. Speed improves, too.|
Vocabulary of wireless LAN
|It is wireless LAN that adopted IEEE 802.11 standard that is International Standard. If there is between apparatuses in conformity with the same standard, connection is enabled with product between different makers. Wi-Fi came to be used for the world as pronoun of wireless LAN now because it spread widely, and it was virtual world standard standard of wireless LAN. In addition, it is trade group called American "Wi-Fi Alliance" to manage Wi-Fi.|
(Wi-Fi Protected Setip: daburyupiesu)
|Setting to require trouble a little including code input is necessary to secure security of information when we connect wireless LAN apparatuses. Therefore, setting of conventional wireless LAN was particular about naive user, and it was high hurdle of wireless LAN introduction. We largely simplify setting of this wireless LAN, and technique to be able to perform connection setting by simple operation is WPS. There are some methods including "PIN code system" to input password that main phone issues "push button method" that connection is completed just to push setup key of each main phone, cordless handset in WPS into cordless handset. Because wireless LAN router of ELECOM supports WPS, you can easily set even beginner.|
(Wired Equivalent Privacy: ueppu)
|As for the communication between wireless LAN apparatuses, intercept is easy. Therefore, coding to prevent you from understanding communication contents even if intercepted is necessary. In one of this coding standards, we use character string of five characters called "WEP key" or 13 characters (we may be ten characters or 26 characters) as code, and WEP decodes coding of information. Because code same as WEP key which transmitter (apparatus) set to decode encrypted data is necessary, it is structure which security of information can keep. But decoding of WEP key consists of progress of IT technique relatively easily, and "WPA" or "WPA2" of stronger encryption system become standard of security standard of wireless LAN now. We recommend the use in stronger encryption system including "WPA" and "WPA2" as much as possible.|
(Temporal Key Integrity Protocol: tea ticket)
|It is one of the encrypting protocol to keep security of communication between wireless LAN apparatuses. We generate temporary encrypting key automatically in TKIP, and when communication of fixed quantity is carried out, we cancel encrypting key, and new encrypting key comes to be generated. Therefore, even if encrypting key is decoded by any chance, we are replaced with new encrypting key immediately and can keep security of communication contents. In addition, point varying in encrypting key may say every cordless handset connecting when security is stronger than WEP. In addition, encrypting key to be used for TKIP is generated by secret key cryptography called "RC4", and the Specifications is nonpublic. There is merit, which "we can encrypt by 1 bit unit" "can set the length of the key optionally" in RC4.|
(Advanced Encryption Standard ：AE S)
|We review data encryption technology adopted in WEP and TKIP, and thing adopted as high code of ability for security more is AES. It is established by the U.S. Department of Commerce standard Technology Administration (NIST) and is adopted as U.S. Government standard code. Three keys to 128 bits .192 bits .256 bits head comes to be available, and report that succeeded for complete decoding is still the world, but there is no such precedent. We recommend the use of AES which is the strongest security when wireless LAN apparatus of errand supports AES.|
(Wi-Fi Protected Access: daburyupie)
|It is coding standard of wireless LAN that American wireless LAN trade group "Wi-Fi Alliance" managing Wi-Fi announced in 2002. Voice for establishment of new coding standard to raise security strength of wireless LAN increased till then because weakness of WEP of mainstream coding standard was discovered in succession, and cases to hit the weakness, and to intercept wireless LAN came to increase. Therefore, it is WPA to have been developed as new standard as a substitute for WEP. We adopted encrypting protocol called setting and TKIP (technique to update encrypting key every communication of fixed quantity automatically) of user authentication function in WPA, and large improvement for security enhancement was added.|
(Wi-Fi Protected Access2: daburyupietsu)
|WPA2 is coding standard of wireless LAN that American wireless LAN trade group "Wi-Fi Alliance" managing Wi-Fi in September, 2004 devised. There are many commonalities on technical extension of WPA, but point adopting CCMP (Counter-mode CBC-MAC Protocol) in encrypting protocol is greatly different from WPA basically. We strengthen security very much by adopting AES, and, in CCMP, encryption algorithm has characteristic that we include manipulation detection function of data again.|
(multiple Service Set Identifier: Chie Malle Sue eye D)
|SSID is inherent ID to avoid interference of access point in Wi-Fi. Much access point names may be listed when we raise wireless LAN apparatus in downtown and train, but the displayed name is SSID. Wireless LAN router has SSID, but can connect different apparatus in each certification, encrypting protocol at the same time because wireless LAN router with multi-SSID function can use plural SSID at the same time. Therefore, it might be said that, for example, we used SSID set in standard that we could easily connect such as WEP from game console which did not transmit and receive important data using SSID which did high secure setting from PC which handled important personal information.|
←→AP (access point) change over Switch
|RT and changeover switch of AP are included in wireless LAN router. RT is "router mode" and changes Switch here when we use router function that wireless LAN router has built-in. In addition, we change Switch here without AP being "access point mode", and already using router function of the wireless LAN router when router is different when we use as access point (device catching electric wave). Depending on Internet service provider joining, Wireless router function may be incorporated in termination devices installed in the room. At this chance we change Switch to the AP side and can use wireless LAN router as access point by switching on again.|