OfficeServ 500 Wireless LAN Service Manual/Ed.00 CHAPTER 3. Installation© SAMSUNG Electronics Co., Ltd. Page 1-153.4.3 InterfaceThe WBS24(Basic) consists of wire processing part and wireless processing part.The wire processing part has a wire interfaces : IEEE 802.3 Ethernet connected toLAN. The wireless processing part has 2.4 GHz frequency bandwidth of wirelessLAN, which complies with the RF interface based on IEEE 802.11b standard.Wired Interface Interworking with LANThe wired Ethernet interface can access to LAN with the 10/100BASE-T port andsend/receive data via Internet, other than voice. The wireless processing part cansend/receive voice data for wireless voice communication, as well as data forwireless access to Internet. The maximum data transmission speed between wirelesssections is up to 4 to 5 Mbps. One unit of WBS24(Basic) can process simultaneouscalls on 4 channels.Wireless InterfaceThe wireless interface uses 2.400 to 2.4835 GHz of wireless frequency bandwidthand meets the IEEE 802.11 b standard. Voice can be sent and received across thewireless sections using a voice-specific terminal. The Voice over WLANsends/receives the voice packet data, and laptop computers and PDA send/receive thedata packet across the wireless sections. 13 wireless channels are used in Korea and11 wireless channels are used in the U.S.The wireless interface occupies 22 MHz of bandwidth per wireless channel and theinterval between center frequencies is 5 MHz. Therefore, to be a clear channel thatdoes not interfere with other wireless channels, it should be 4 channels away fromother channels. The wireless processing part sends/receives voice data for wirelessvoice communication, as well as data for wireless access to Internet. The maximumdata transmission speed between wireless sections is up to 4 to 5 Mbps. One unit ofWBS24(Basic) can process simultaneous calls on 4 channels.3.4.4 Application SpecificationsThe WBS24(Basic) is designed to meet both specifications of wireless type andelectromagnetic compatibility(EMC) as follows :Type Registration (Domestic Specification)Among different types of wireless equipment that use radio wave signals, thefollowing equipment, available to the general public, shall be approved of its type.The following tests shall be conducted according to the standards of ‘Specific OutputWireless Equipment for Wireless LAN’.1) The absolute gain of sending antenna shall be less than 6 dBi. However, thestationary point-to-point wireless equipment shall be less than 20 dBi.2) Frequency tolerance shall be less than ±50×0-6.