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Quick Start Guide
802.11g 54Mbps WLAN Building to Building
Bridge
Outdoor: 3CRWEASYG73
Indoor: 3CRWE920G73
http://www.3com.com/
Published July 2005
Quick Start guide version2.0.1
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1 Introduction Thank you for choosing the 3Com Corporation 802.11g 54Mbps Wireless LAN Building to Building Bridge. The outdoor version of 3Com 802.11g Wireless Bridge is ideal for rough outdoor environments and covering long distances, whereas the indoor version has a smaller profile to be unobtrusive and can be customized to the application with a variety of antenna selections. They can be configured as an inter-building wireless bridge with maximum 54Mbps transmission rate. This manu
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2 Package Contents Please ensure that the package is complete before beginning with the installation. The package should include the following components: 3CRWE920G73 3CRWEASYG73 Indoor 802.11g 54Mbps Building to Building Bridge Outdoor 802.11g 54Mbps Building to Building Bridge • 3Com 802.11g Wireless indoor Bridge • 3Com 802.11g Wireless Outdoor Bridge • Mounting kit for wall or ceiling mount • Mounting kit for wall or mast mount • CD-ROM containing software and documentation • CD
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3 Hardware Installation Installing the 3CRWE920G73 Indoor Wireless Bridge On a flat surface 1 Find a surface that is clear of debris. 2 Set the bridge down on its four rubber feet. On a wall 1 Use the mounting template as a guide to make two marks 7.40cm (2.91 inches) apart on the wall. Use the vertical line on the template to ensure that the placement of the marks is plumb to the wall. 2 Drill holes at the marks. Use a 5-mm (3/16-inch) drill bit if using the provided screw anch
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Connect the antenna 1 Connect one end of the antenna cable to the antenna. 2 Connect the free end of the antenna cable to the connection on the bridge. Follow the instructions that come with the antenna and follow these general guidelines: For best performance, place the antenna using the mounting hardware provided with the antenna. Outdoor placement is especially important if the building is of metal construction or has metal siding. If necessary, you can mount an antenna inside
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Installing the 3CRWEASYG73 Outdoor Wireless Bridge Mount the Unit to a Mast Follow the instructions that come with the bridge mounting hardware and follow the general guidelines listed below. NOTE: Mast should extend above bridge 1 meter (3 ft) Recommended Pole Diameter = 2’’ -- 2.5’ - ’ Maximum Pole Diameter = 3’’ Bridge may be installed to freestanding or roof mounted mast For best performance, place the antenna outdoors using the mounting hardware provided with the a
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Align and Polarize the Units For optimal performance, position the antenna so that there are minimal obstacles between it and any other antenna with which it will communicate. While maintaining a direct line of sight between antennas is not strictly necessary, such a configuration helps to ensure a strong signal. As mentioned earlier, this is not always possible in long distance configurations. Any two bridge units that are to communicate with each other must be set for the same polarizat
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Antenna Specification The following antennas and cables are available from 3Com Corporation: Antennas 3CWE591 - 6/8dBi Dual-Band 3CWE598 - 8/10dBi Dual-Band Panel 3CWE495 13 dBi Sector-Panel Omni directional Antenna Antenna Directional 3CWE596 - 18/20dBi Dual-Band Ultra Low Loss Coaxial Panel Antenna Antenna Cables: 3CWE580 (6 foot) 3CWE581 (20 foot) 3CWE582 (50 foot) NOTE: Because of power level restrictions, use of the 3CWE495 13dBi and 3CWE596 18d
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Connect to the Power Source and the Local Network 3CRWE920G73 Indoor Wireless Bridge Connect a twisted pair CAT5 Ethernet cable from the ’’To Hub/Switch’’ port of the PoE Adapter to a free port on the hub or switch within the local network 3CRWEASYG73 Outdoor Wireless Bridge NOTE: 3Com recommends that you use a weatherproof and shielded CAT5 cable to help protect the Bridge and your network equipment from lightning and power surges. If the Bridge failed to power on or if it
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LED Indicators After the correct connection, the Power LED and the Ethernet link LED of the 3CRWE920G73 indoor bridge should light up. On the front of the Wireless Bridge you will find three LEDs POWER WIRELESS ETHERNET 1 POWER LED Off: Power supply connection not available or broken On: Power supply connection OK 2 WIRELESS activity LED Off: No activity Blinking: Sending and receiving data 3 ETHERNET LAN link LED Off: No LAN connec
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5 Find your New Wireless Bridge To find your new Wireless Bridge you will need to connect the Wireless Bridge to the same physical LAN network as your PC. By default, the Wireless Bridge will use DHCP Client mode to get an IP address from a DHCP Server. If your network does not have a DHCP server, the Bridge uses a default IP address of 169.254.X.Y, where the X and Y is the last two bytes of the MAC address in decimal value respectively. You can use that default IP address to configure the
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If 3Com Wireless Infrastructure Device Manager (WIDMAN) finds that your PC cannot connect to the Wireless Bridge by IP, it would pop-up a dialog requesting that you change the IP address of the device. Then the utility will prompt you to enter the password of the bridge. [Note: default password is ‘‘blank’’] If the password is correct, you will be able to configure it through the WEB UI. [NOTE: It can take up to 60 seconds for the 3Com Building to Building Bridge to boot up after power
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6 Default Settings. Property Default Setting Device Name 3Com Building-to-Building Bridge Country For U.S. version, United States For non-U.S version, set by the user IP Network Setting Obtain IP address automatically IP Address Obtained automatically (with a DHCP server) 169.254.X.Y (without a DHCP server) Subnet Mask Obtained automatically (with a DHCP server) 255.255.0.0 (without a DHCP server) Default Gateway Obtained automatically (with a DHCP server) 0.0.0.0 (without a DHC
