Acrowave Systems AAP-1100E 2.4GHz Wireless LAN User Manual users manual 5

Acrowave Systems Co., Ltd 2.4GHz Wireless LAN users manual 5

users manual 5

AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 41 of 41 In order to upgrade Access Point firmware via local disk, click the Local Disk button. In order to use this option, you should have latest firmware version in your local disk already. After you click Browse button, select the firmware that you want to update. In this time, you should take special attention in opening file so that not to open wrong file or firmware version. After confirm the file name, click the Start button. The other processes from this stage are the same as those of the Internet. Firmware Upgrade Via Local Disk
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 42 of 42 These windows is provided for wireless LAN expert only, so if you does not have deep information about wireless LAN air interface specifications, do not change default options. More detail information about how to change detail configuration will be explained in Access Point Management section. • Beacon Period: The amount of time between beacons. • DTIM Period: This setting, always a multiple of the beacon period, determines how often the beacon contains a delivery traffic indicator message (DTIM). The traffic indicator message tells power-save clients that a packet is waiting for them. Other items will be explained later vision of this document. Access Point Detail Control
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 43 of 43 3.2 Setting Bridge Mode You can connect two separate LANs over a wireless link by configuring two AcroLAN Access Points to communicate with each other. This is called a LAN-to-LAN connection. Two APs in different buildings using an outdoor antenna to connect the LANs in those buildings can be deployed. To configure two APs to communicate with each other in a LAN-to-LAN configuration, perform the following tasks: 1) Get the wireless MAC address of the remote AP. You can see the wireless address via the AP Manager or console device, as described in “Access Point Configuration Window“ section. The wireless MAC address is NOT the same as the wired MAC address printed on the front of the AP. 2) Set the Bridge Mode to LAN-to-LAN, as described in above “Access Point Configuration Window section’s Type item. 3) Make sure that the APs use the same channel. To change the AP channel, see “Access Point Configuration Window“ section. The AP provides the following bridging services: • Store-and-forward capability The AP receives, checks, and transmits frames to other LANs, enabling the configuration of extended LANs. • Frame filtering based on address Using the address database and the source and destination addresses from incoming frames, the AP isolates the traffic that should not be allowed on other LANs. This action reduces the total data traffic on an extended LAN by not forwarding the packets that have local destination addresses or packets that are not allowed to forward. This increases bandwidth efficiency.
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 44 of 44 • Data Link layer relay The AP operates at the Data Link layer of the Open System Interconnection (OSI) model. Operation at this layer makes the AP transparent to the protocols that use the LAN connectivity service. This protocol transparency is a key factor in the extended LAN service.
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 45 of 45 Chapter 4 Troubleshooting T.B.D.
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 46 of 46 Appendix Appendix A Cell Planning (Radio Range) This section provides general guidelines on factors that influence network performance Cell Site Survey Because of differences in component configuration, placement and physical environment, every network application is a unique installation. Before installing the system, users should perform a site survey to determine the optimum utilization of networking components and to maximize range, coverage and network performance. Here are some operating and environmental conditions you should consider: • Data Rates Radio signal sensitivity and range are inversely proportional to data bit rates. The maximum radio range is achieved at the lowest workable data rate. There will be a decrease in receiver threshold sensitivity as the radio data rate increases. • Antenna Type and Placement (PCI card only) Proper antenna configuration is a critical factor in maximizing radio range. As a general guide, range increases in proportion to antenna height. For a detailed explanation of antenna types and configurations along with guidelines on selecting antennas for specific environments, see the documentation that comes with your antenna. • Physical Environments Clear or open areas provide better radio range than closed or filled areas. Also, the less cluttered the work environment, the greater the range. • Obstructions A physical obstruction such as metal shelving or a steel pillar can hinder the performance of the client adapter. Avoid locating the computing device in a location where there is a metal barrier between the sending and receiving antennas.
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 47 of 47 • Building Materials Radio penetration is greatly influenced by the building material used in construction. For example, drywall construction allows greater range than concrete blocks. Metal or steel construction is a barrier to radio signals. Enhancing Coverage The system architecture options of the wireless station and AcroLAN Access Points provide for a variety of coverage alternatives and flexibility. The system can be designed to provide a wide coverage area with minimal overlap or coverage with heavy overlap. The latter improves system performance and protection against downtime in the event of a component failure. By arranging the AcroLAN Access Points so the overlap in coverage area is minimized, a large area can be covered with minimal system cost. The total bandwidth available to each mobile station will depend on the amount of data each mobile station desires to transfer and the number of stations located in each cell. Seamless roaming is supported as a mobile station moves in and out of range of each AcroLAN Access Point, thereby maintaining a constant connection to the wired LAN. Each device in the radio network must be configured with the same Service Set Identifier (SSID) to provide the roaming capability. Multiple systems can operate in the same vicinity. The architecture provides multiple channels, which can coexist in the same area with virtually no interference to each other. In this mode, each system must be configured with different Service Set Identifiers (SSID) and different channels, which prevent clients from roaming to AcroLAN Access Points of a different wireless system.
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 48 of 48 Appendix B Technical Specifications Functional Specification Item Function Configuration and setup . Local monitor . Access Point Manager Modes . Access Point . Wireless LAN Bridge Status Display Power, Air Link Status, Wire Link status Software Upgradeable Via Access Point Manager or local monitor Security WEP 64 bit standard, upgradeable to 128 bit Approval WiFi, FCC (in processing) Max. No of Clients per AP 255
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 49 of 49 Electrical/Radio Specifications Item Specification Description Compliance IEEE802.11b Radio Type Direct Sequence Spread-Spectrum (DSSS) 2.4 GHz ISM Band Operating Frequency 2400-2483.5 MHz North American, ETSI, and Japan channel coverage, factory configurable Range Depending on data rate and environment. Accurate values must be calculated for specific installation. Data Rate 1, 2, 5,5 or 11Mbps Dynamic rate selection based on radio medium quality. FCC ID FCC approval Number of Channels Max 14 Refer Appendix CHANNEL Channeling 5 MHz increments Programmable for IEEE 802.11b Type of Modulation BPSK 1 Mbit/s QPSK 2 Mbit/s CCK 5.5 and 11 Mbits/s Nominal 10 MHz BW (-6 dB) Receiver sensitivity –87 dBm @ 1 Mbps –85 dBm @ 2 Mbps –84 dBm @ 5.5 Mbps –81 dBm @ 11 Mbps Wired LAN Interface 10Base-T RJ45 Connector Serial Interface RS-232 @ 19.2Kbps DB-9 female Power Consumption 4.5W @ 20°C Power Supply 1.5A DC Input 100-240VAC, 60Hz 5V VDC Dimension 157w x 128d x 27h MM Weight 0.5Kg Without antenna Operating Temperature 0°C ~ +55°C Storage Temperature -30°C ~ +80°C Operating Humidity 10% ~ 90% Non-condensing
AcroLAN Access Point User’s Guide Version 2000.12.10 Copyright© Acrowave Systems 2000 DOC – xxx - yyy Page 50 of 50 Appendix C Channel Allocation The channel identifiers and the channel center frequencies of each 22-MHz-wide channel are shown in the table below, as appropriate for the various areas or regulatory agencies. Regulatory Domains Channel Identifier Center Frequency North America ETSI Spain France Korea / Japan 1 2412MHz √√√√ √√√√ − − √√√√ 2 2417MHz √√√√ √√√√ − − √√√√ 3 2422MHz √√√√ √√√√ − − √√√√ 4 2427MHz √√√√ √√√√ − − √√√√ 5 2432MHz √√√√ √√√√ − − √√√√ 6 2437MHz √√√√ √√√√ − − √√√√ 7 2442MHz √√√√ √√√√ − − √√√√ 8 2447MHz √√√√ √√√√ − − √√√√ 9 2452MHz √√√√ √√√√ − − √√√√ 10 2457MHz √√√√ √√√√ √√√√ √√√√ √√√√ 11 2462MHz √√√√ √√√√ √√√√ √√√√ √√√√ 12 2467MHz − √√√√ − √√√√ √√√√ 13 2472MHz − √√√√ − √√√√ √√√√ 14 2484MHz − − − − √√√√

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