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Reţele Wi-Fi pentru acasă sau birouri mici - folosind echipamente TP-LINK 802.11n
Versiunea originală în limba polonă de Lukasz Kopciuch

Standardul 802.11n permite viteze de transfer de până la 300 Mbps şi este perfect pentru transmisia de material multimedia precum filme, imagini şi muzică. Transmisia wireless a filmelor şi a muzicii va dura astfel mult mai puţin decât pe cablu fast ethernet. Un alt avantaj al echipamentelor 802.11n este compatibilitatea sa cu standardele mai vech. Un router 802.11n poate comunica şi cu plăci de reţea 802.11b şi 802.11g.
Acest articol vă prezintă multitudinea de reţele wireless WiFice pot fi creeate cu echipamente TP-LINK.
TP-Link in one of the leading manufacturers of network devices for home and business applications. The devices are reliable, easy to configure and offer modern design. It is reflected by numerous prizes awarded by independent magazines round the world, which prove high quality of the devices and customer-driven policy of the manufacturer.
High R&D investments and cooperation with the top manufacturers of microprocessors result in improved reliability and implementation of the latest methods and technology.TP-LINK is currently the No. 1 in the Chinese market of SOHO (Small Office/Home Office) network devices.
The company begins to set quality standards, gaining recognition and winning awards around the world.
Varianta 1
Partajarea unei conexiuni ADSL
It is one of the most popular ways to distribute Internet within the home, as most home users are connected to the Internet through ADSL lines (Asymmetric Digital Subscriber Line).
The router (1) with integrated ADSL modem is responsible for distribution of the connection to multiple computers, via wired or wireless means.
Lista echipamentelor care pot fi utilizate într-un astfel de scenariu:

  • Dispozitiv nr. 1 - echipament cu acces la internet, responsabil cu distribuirea semnalului către mai multe calculatoare în cadrul reţelei locale:
    • N2902 - Router wireless ADSL2+, TP-Link TD-W8901G (switch cu 4 porturi integrate şi funcţie AP),
    • N2904 - Router ADSL TP-Link TD-W8960N, switch cu 4 porturi integrat si AP 802.11n (300 Mb/s),
    • N2908 - Router wireless cu modem ADSL2 TP-Link TD-W8950ND ( switch cu 4 porturi şi AP 802.11n la 150 MB/s)
    • N2906 - Router ADSL TP-Link TD-8816 (fără WiFi),
    • N2907 - Router ADSL TP-Link TD-8840T, switch cu 4 porturi (fără WiFi).
  • Dispozitiv nr. 2 şi 3 - pentru accesul la internet folosind cablu UTP:
    • N2997 - Placă de reţea PCI TP-LINK TG-3269 10/100/1000 Mbps,
    • N2998 - Placă de reţea PCIe TP-LINK TG-3468 10/100/1000 Mbps,
    • N2999 - Placă de reţea PCI TP-LINK TF-3239DL 10/100 Mbps.
Varianta 2
Partajarea unei conexiuni de bandă largă (xDSL sau LAN)
The connection is provided by the ISP (cable TV, DSL, or other operator) via Ethernet interface (it may be for example cable modem with RJ-45 socket). The user will need a router equipped with WAN port (RJ-45 socket).
The router (1) is responsible for distribution of the connection to multiple computers, via wired or wireless means.
Lista echipamentelor care pot fi utilizate într-un astfel de scenariu:

  • Dispozitiv nr. 1 - echipament cu acces la internet, responsabil cu distribuirea semnalului către mai multe calculatoare în cadrul reţelei locale:
    • N3252 - access point (802.11n 150 Mb/s) TP-LINK TL-WR740N cu router incorporat,
    • N3254 - access point (802.11n 150 Mb/s) TP-LINK TL-WR741N cu router incorporat,
    • N2958 - 3G (UMTS/HSPA) wireless router TP-LINK TL-MR3220 (802.11n 150 Mb/s),
    • N2957 - 3G (UMTS/HSPA) wireless router TP-LINK TL-MR3420 (802.11n 300 Mb/s),
    • N3250 - access point (802.11n 300 Mb/s) TP-LINK TL-WR841ND cu router incorporat şi switch de 4 porturi,
    • N3251 - access point (802.11n 300 Mb/s) TP-LINK TL-WR941ND cu router incorporat şi switch de 4 porturi,
    • N3253 - access point (802.11n 300 Mb/s) TP-LINK TL-WR1043ND cu router incorporat, switch de 4 porturi GbE şi port USB.
  • Dispozitiv nr. 2 şi 3 - pentru accesul la internet folosind cablu UTP:
    • N2997 - Placă de reţea PCI TP-LINK TG-3269 10/100/1000 Mbps,
    • N2998 - Placă de reţea PCIe TP-LINK TG-3468 10/100/1000 Mbps,
    • N2999 - Placă de reţea PCI TP-LINK TF-3239DL 10/100 Mbps.
  • Dispozitiv nr. 4 şi 5 - pentru accesarea reţelei wireless de pe un calculator desktop sau laptop:
    • Adaptoare USB cu antenă detaşabilă:
      • N2922 - 802.11n USB adapter TP-LINK TL-WN722N, 150 Mb/s with external 4 dBi antenna,
      • N2925 - 802.11n USB adapter TP-LINK TL-WN7200ND, 150 Mb/s High Power (500 mW);
    • Plăci de reţea PCI wireless cu antenă detaşabilă pentru calculatoare desktop:
      • N2972 - Placă de reţea PCI TP-LINK TL-WN951N 802.11n 300 Mb/s,
      • N2974 - Placă de reţea PCI Express TP-LINK TL-WN781N 802.11n 150 Mb/s,
      • N3271 - Placă de reţea PCI TP-LinkTL-WN851N 802.11n 300 Mb/s.
    • Alte adaptoare USB wireless:
      • N2924 - TP-LINK TL-WN721N 802.11n 150Mb/s,
      • N2926 - TP-LINK TL-WN822N 802.11n 150Mb/s,
      • N2927 - TP-LINK TL-WN723N 802.11n 150Mb/s,
      • N3221 - TP-LINK TL-WN821N 802.11n 300Mb/s.
Varianta 3
Accesul la internet se face wireless
When the Internet is distributed wirelessly, we need an AP (wireless router) with WISP (Wireless Internet Service Providers) mode enabling configuration of its wireless interface as WAN port.
The router can be directly connected to a suitable outdoor antenna via 50 ohm RF cable (e.g. Tri-Lan 240 E1171_100).
Lista echipamentelor care pot fi utilizate într-un astfel de scenariu:

  • Device no. 1 - the device with wireless access to the Internet, responsible for its distribution to multiple computers within the local network:
    • N2956 - WISP access point TP-Link TL-WR743ND with built-in router and 4-port switch.
  • Device no. 2 - for wired access to the network from a desktop PC:
    • N2997 - PCI NIC TP-LINK TG-3269 10/100/1000 Mb/s,
    • N2998 - PCIe NIC TP-LINK TG-3468 10/100/1000 Mb/s,
    • N2999 - PCI NIC TP-LINK TF-3239DL 10/100 Mb/s.
  • Device no. 3 - for wireless access to the network from a desktop or mobile PC:
    • N2922 - 802.11n USB adapter TP-LINK TL-WN722N, 150 Mb/s with external 4 dBi antenna,
    • N2924 - 802.11n USB adapter TP-LINK TL-WN721N, 150 Mb/s ,
    • N2925 - 802.11n USB adapter TP-LINK TL-WN7200ND, 150 Mb/s High Power (500 mW),
    • N2926 - 802.11n USB adapter TP-LINK TL-WN822N, 300 Mb/s 100 mW,
    • N2927 - miniature 802.11n USB adapter TP-LINK TL-WN723N 150 Mb/s,
    • N3221 - 802.11n USB adapter TP-LINK TL-WN821N, 300 Mb/s.
Varianta 4
O reţea de birou mai complexă
Lack of access to the Internet greatly reduces the functionality of buildings and premises. Wired LAN can be built on the occasion of major refurbishment of an existing facility or construction of a new one. However, it is impossible to completely predict the needs of the future users (the layout of the hardware). Fast, cheap and effective way to solve this problem is to install wireless network. The diagram below shows an example of an extensive office network.
  • Device no. 1 - the device with access to the Internet, responsible for its distribution to multiple computers within the local network:
    • N3252 - access point TP-LINK TL-WR740N with built-in router, 150 Mb/s 802.11n,
    • N3254 - access point TP-LINK TL-WR741N with built-in router, 150 Mb/s 802.11n,
    • N2958 - 3G wireless router TP-LINK TL-MR3220, 802.11n 150 Mb/s, UMTS/HSPA,
    • N2957 - 3G wireless router TP-LINK TL-MR3420, 802.11n 300 Mb/s, UMTS/HSPA,
    • N3250 - access point TP-LINK TL-WR841ND 802.11n 300 Mb/s with built-in router and 4p switch,
    • N3251 - access point TP-LINK TL-WR941ND 802.11n 300 Mb/s with built-in router and 4p switch,
    • N3253 - access point TP-LINK TL-WR1043ND 802.11n 300 Mb/s with built-in router, GbE switch, USB.
  • Device no. 2 - for wireless access to the network from a desktop or mobile PC:
    • Wireless USB adapters with option for connecting an external antenna:
      • N2922 - 802.11n USB adapter TP-LINK TL-WN722N, 150 Mb/s with external 4 dBi antenna,
      • N2925 - 802.11n USB adapter TP-LINK TL-WN7200ND, 150 Mb/s High Power (500 mW);
    • PCI wireless adapters for desktop PCs with option for connecting an external antenna:
      • N2972 - PCI card TP-LINK TL-WN951N 300 Mb/s,
      • N2974 - PCI Express card TP-LINK TL-WN781N 802.11n 150 Mb/s,
      • N3271 - PCI card TP-LinkTL-WN851N 802.11n 300 Mb/s.
  • Device no.3 - antenna strengthening the signal in the case of more distant locations in the building(s):
    • A72713 - indoor omnidirectional antenna TP-LINK TL-ANT2405C 5 dBi 2.4 GHz,
    • A72714 - indoor omnidirectional antenna TP-LINK TL-ANT2408C 8 dBi 2.4 GHz.
  • Device no. 4 - WiFi repeater:
    • N2942 - access point TP-Link TL-WA701ND 2.4 GHz, 150 Mb/s 802.11n,
    • N2944 - access point TP-Link TL-WA901ND 2.4 GHz, 300 Mb/s 802.11n.
 
George Popescu
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