User manual AIRLIVE WHB-5854A

[. . . ] AirLive WHB-5854A Wireless Outdoor Bridge WHB-5854A 5~5. 8GHz 802. 11a Outdoor Wireless Bridge User's Manual Default IP Address is 192. 168. 1. 20 Default User name is Admin Default Password is 5up 1 AirLive WHB-5854A Wireless Outdoor Bridge FCC Notice: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] Note: 3 to 5dB additional margin is recommended to maintain a reliable link. Basic Mode Modulation Data Rate (Mbps) BPSK BPSK QPSK QPSK 16QAM 16QAM 64QAM 64QAM 6 9 12 18 24 36 48 64 Minimum RX Sensitivity -88 -87 -86 -84 -81 -76 -72 -68 Turbo Mode Data Rate (Mbps) 12 18 24 36 48 72 96 108 Minimum RX Sensitivity -85 -84 -83 -81 -78 -73 -69 -65 Table 1 5GHz RX Sensitivity VS. Data Rate 7) Transmit Power Available selection of Transmit Power are Full, Half (-3dB), Quarter (-6dB), Eighth (-9dB), and Minimum. Select the appropriate Transmit Power according to the distance and environmental factor between Bridges. 8) RTS/CTS Threshold In order to prevent the transmission collision in a hidden 25 AirLive WHB-5854A Wireless Outdoor Bridge nodes environment, Bridge may send a RTS (Request To Send) before transmitting the data frame and expect to receive a CTS (Clear To Send) from remote Bridge. You may define a threshold for those frame size greater than the threshold need to activate RTS/CTS mechanism. The valid range is between 256 and 2346. Set low value to this threshold may avoid collision, but the RTS/CTS frame would consume bandwidth. 9) Distance Setup "Bridge Distance" according to the longest link distance between the Master and Slaves in the network. The input needs to be greater than or equal to the real distance. 10) Super Bridge Mode Super Bridge Mode provides three mechanisms to improve the bridge throughput. Compression: Frame is compressed by hardware before transmitting. Note that the compression may save bandwidth but would consume frame process time. In case the data is already compressed (eg. mpeg frame), please do NOT turn on this function. Bursting: Turning on Bursting function enables multiple frames are transmitted at SIFS intervals which may reduce transmission overhead. But this may increase packet error rate on the other side. Fast Frame: Turning on Fast Frame function enables two Ethernet frames bundled into a single wireless frame. Warning 1: It is required to setup the same options of Super Bridge Mode between Bridges to communicate. Warning 2: It very depends on the deployed site environment to decide whether turning on Bursting & Fast Frame function or not. 11) Auto Reboot With this function enabled, Bridge will reboot itself automatically while there is no data received for 30 seconds. 12) Spanning Tree Protocol This function is to prevent the network loop and disabled by default. It is suggested you enable this function when the network configuration is complicated. 13) Click and "Reboot" the system after setting. 26 AirLive WHB-5854A Wireless Outdoor Bridge Picture 16 5GHz Bridge (Master) Picture 17 5GHz Bridge (Slave) Security Setting ­ Master / Slave side Share/Unique Key To have a secured data transmission, Outdoor WLAN Product provides 3 encryption mechanisms. [. . . ] Specifies the number of transmit DMA errors. Specifies the number of receive duplicate frames. Specifies the enabled state of encryption either yes or no. Specifies the error count for both transmit and receive. Specifies the number of transmit excessive retries. [. . . ]