ZyXEL P-660HN-T1A Support Guide - Page 33

P-660HN Series Support Notes single "logical channel". To an unsynchronised receiver an FHSS transmission appears to be short-duration impulse noise. 802.11 may use FHSS or DSSS. 6. Do I need the same kind of antenna on both sides of a link? No. Provided the antenna is optimally designed for 2.4GHz or 5GHz operation. WLAN NICs often include an internal antenna which may provide sufficient reception. 7. Why the 2.4 GHZ Frequency range? This frequency range has been set aside by the FCC, and is generally labeled the ISM band. A few years ago Apple and several other large corporations requested that the FCC allow the development of wireless networks within this frequency range. What we have today is a protocol and system that allows for unlicensed use of radios within a prescribed power level. The ISM band is populated by Industrial, Scientific and Medical devices that are all low power devices, but can interfere with each other. 8. What is Server Set ID (SSID)? SSID is a configurable identification that allows clients to communicate to the appropriate base station. With proper configuration, only clients that are configured with the same SSID can communicate with base stations having the same SSID. SSID from a security point of view acts as a simple single shared password between base stations and clients. 9. What is an ESSID? ESSID stands for Extended Service Set Identifier and identifies the wireless LAN. The ESSID of the mobile device must match the ESSID of the AP to communicate with the AP. The ESSID is a 32-character maximum string and is case-sensitive. Security FAQ 1. How do I secure the data across the P-660HN-T1A Access Point's radio link? To secure the date across the P-660HN-T1A Access Point‟s radio link, we could select any one of the security mode: Static 64/128 bit WEP, WPA-PSK, WPA, WPA2-PSK, WPA2. 2. What is WEP? 33 All contents copyright © 2010 ZyXEL Communications Corporation.