3Com Wireless LAN Bridge
Contents
1. ACCESS PROTOCOL CSMA CA TRANSMIT POWER SETTINGS Based on the regulatory domain set by the system administrator not to exceed the following Indoor Bridge 3CRWE920G73 17 dBm U S Canada Mexico 20 dBm EIRP max depending on antenna and cable configuration Europe U K Ireland Latin America Outdoor Bridge Access Point 3CRWEASYA73 802 11g 6 to 54 Mbps 18 dBm 2412 and 2472 GHz 20 dBm 2417 2467 GHz 802 11b 1 to 11 Mbps 15 dBm 2412 2472 and 2417 2467 GHz 802 11a 6 to 48 Mbps 17 dBm 5 150 5 250 5 250 5 350 5 500 5 700 and 5 725 5 825 GHz 54 Mbps 12 dBm 5 150 5 250 GHz 17 dBm 5 250 5 35 and 5 500 5 700 GHz 16 dBm 5 725 5 825 GHz affected due to Dynamic Frequency Selection DFS Outdoor Building to Building Bridge and 11b g Access Point 3CRWEASYA73 only RECEIVE SENSITIVITY 3CRWE920G673 802 1la 6 Mbps 87 dBm 9 Mbps 86 dBm 12 Mbps 84 dBm 18 Mbps 82 dBm 24 Mbps 79 dBm 36 Mbps 75 dBm 48 Mbps 72 dBm 54 Mbps 71 dBm 802 11b 1 Mbps 91 dBm 2 Mbps 89 dBm 5 5 Mbps 88 dBm 11 Mbps 86 dBm 802 11g 6 Mbps 85 dBm 9 Mbps 83 dBm 12 Mbps 81 dBm 18 Mbps 79 dBm 24 Mbps 77 dBm 36 Mbps 74 dBm 48 Mbps 72 dBm 54 Mbps 70 dBm 802 11a g 1 Mbps 95 dBm 2 Mbps 92 dBm 5 5 Mbps 91 dBm 6 Mbps 89 dBm 9 Mbps 88 dBm 11 Mbps 88 dBm 12 Mbps 86 dBm 18 Mbps 84 dBm 24 Mbps 81 dBm 36 Mbps 77 dBm 48 Mbps 732. the wired network up to 15 5 kilometers 9 6 miles away The unit includes an embedded 17 dBi high gain antenna for bridging applications Optional external omni directional and directional antennas are available separately WIRELESS COST ADVANTAGES Using wireless bridges to extend the network saves the high cost of installing cable between buildings Enterprises can also avoid the expense of leasing T1 E1 lines which can cost up to US 1 000 per month or more And 3Com building to building bridges provide 10 to 20 times the bandwidth of T1 E1 lines SECURE COMMUNICATIONS To ensure privacy and protect valuable information 3Com building to building bridges are equipped with a full complement of enterprise class security features The bridges provide the latest Wi Fi Protected Access 2 WPA2 with Advanced Encryption Standard AES wireless encryption WPA with PSK authentication and Wired Equivalent Privacy WEP encryption They also support virtual private network VPN and virtual LANs VLANs pass through so that data access can be restricted to specific groups or individuals IEEE 802 1X EAP MD5 EAP TLS EAP TTLS and PEAP is supported for user or MAC authentication and an embedded supplicant is included for authentication to the local LAN DURABLE AND RELIABLE The outdoor bridges are designed to withstand harsh conditions as the rugged housing guards against vibration water and shock and even includes internal lightning pro
3. 10 dBi Dual Band Panel Antenna 3CWE598 3Com Ultra Low Loss Antenna Cable 6 Foot 3CWE580 3Com Ultra Low Loss Antenna Cable 20 Foot 3CWE581 3Com Ultra Low Loss Antenna Cable 50 Foot 3CWE582 3Com RSMA to SMA 6 Antenna Cable 3CWE586 Outdoor Bridge Access Point 3CRWEASYA73 Accessories 3Com 6 8 dBi Dual Band Omni Antenna 3CWE591 3Com 18 20 dBi Dual Band Panel Antenna 3CWE596 3Com 8 10 dBi Dual Band Panel Antenna 3CWE598 3Com Ultra Low Loss N to N Antenna Cable 6 Foot 3CWE810 3Com Ultra Low Loss N to N Antenna Cable 20 Foot 3CWE811 3Com Ultra Low Loss N to N Antenna Cable 50 Foot 3CWE812 3Com Global Services 3Com Wireless LAN Site Survey Network Health Check Installation Services and Express Maintenance www 3com com services_quote 3Com University Courses www 3com com 3comu Visit www 3com com for more information about 3Com secure converged network solutions 3Com Corporation Corporate Headquarters 350 Campus Drive Marlborough MA 01752 3064 Cx 3COM 3Com is publicly traded on NASDAQ under the symbol COMS Copyright 2008 3Com Corporation All rights reserved 3Com and the 3Com logo are registered trademarks and Express is a service mark of 3Com Corporation All other company and product names may be trademarks of their respective companies Wireless speed and performance depend on number of users physical conditions and other electronic devices in the area While every effort is made to ensure the information gi
4. 1X authentication access control with key rotation IEEE 802 1X mutual authentication access control between two bridged access points NETWORKING PROTOCOLS NetBEUI IPX TCP IP Bridging Protocol Spanning Tree Protocol SNMP DHCP PERFORMANCE 3CRWE920G73 Dynamic rate shifting Packet bursting Clear channel connect 3CRWEASYA73 Dynamic rate shifting Packet bursting Clear channel connect 802 11a g turbo and Super G modes MANAGEMENT 3CRWE920G673 CLI via Telnet or SSN HTTP or HTTPS web browser interface SNMP vl and 3 3Com Network Director Remote software upgrade via HTTP 3CRWEASYA73 CLI via console port or Telnet SSH HTTP or HTTPS web browser interface SNMP vl and 3 3Com Wireless Infrastructure Device Manager Widman LEDS 3CRWE920G73 Power LAN activity radio activity 3CRWEASYA73 Power reset Ethernet link Ethernet activity radio activity bridge link RSSI DIMENSIONS AND WEIGHT 3CRWE920G73 Length 17 5 cm 6 9 in Width 12 1 cm 4 76 in Height 3 6 cm 1 4 in Weight 0 26 kg 0 575 1b 3CRWEASYA73 Length 19 5 cm 7 6 in Width 19 cm 7 4 in Height 7 4 cm 2 8 in Weight 5 3 kg 11 6 lb REGULATORY AGENCY APPROVALS Safety EN 60950 2000 IEC 60950 Edition 3 CSA 22 2 60950 3rd edition UL 60950 3rd edition UL 2043 IEC 60529 NOM 109 SCFI AS NZ 3260 Radio Electromagnetic 47 CFR Part 15 Section 15 247 15 207 15 407 FCC 03 287 Parts 2 amp 15 FCC Bulletin ORC 65
5. Ca 38COM DATA SHEET Secure and reliable wireless connections that extend the network without costly cabling or leased line charges FD CERTIFIED 3Com 54 Mbps Wireless LAN Building to Building Bridge Family OVERVIEW The 3Com 54 Mbps Wireless LAN Building to Building Bridge family provides IEEE 802 11a and 802 11g Wi Fi connections and bridged links across building complexes enterprise campuses and metropolitan areas Wireless outdoor bridges can connect intra building LANs which are up to 10 miles 17 kilometers apart while 802 11g indoor bridges enable network connections between adjacent buildings and out to open areas such as atriums and storage yards In addition the 3Com lla 54 Mbps Wireless LAN Outdoor Building to Building Bridge and 11b g Access Point combines the functions of a bridge and a full featured wireless access point in one durable weatherproof unit By installing 3Com building to building bridges enterprises can avoid the expense of extending their cabling plant between buildings or using expensive leased lines with recurring monthly service fees Rugged design and multiple security features help ensure continuous reliable and secure operation Several antenna options are available for the indoor bridges and the outdoor bridge access point KEY BENEFITS NETWORK CONNECTIONS EVERYWHERE 3Com building to building bridges let users connect to the enterprise network at full 54 Mbps or 108 Mbps Wi Fi sp
6. Canada RSS 102 Issues 1 amp 5 EN 300 328 EN 301 983 EN 301 489 Emissions Immunity ICES 003 Class B FCC Part 15 Class B ETSI EN 301 489 17 EN 55022 1994 Al 1995 A2 1997 Class A EN 61000 3 2 2000 EN 61000 3 3 1995 A1 2001 Using IEEE 802 11a for bridging is not recommended in countries requiring radar detection as link speed and quality may be adversely affected due to Dynamic Frequency Selection DFS Outdoor Building to Building Bridge and 11b g Access Point 3CRWEASYA73 only 3COM 54 MBPS WIRELESS LAN BUILDING TO BUILDING BRIDGE FAMILY SPECIFICATIONS CONTINUED Giri CERTIFIED ENVIRONMENTAL RANGES 3CRWE920G673 Operating temperature 33 to 50 C 27 to 122 F Wind operational loading up to 153 kph 95 mph wind survival to 201 kph 125 mph Vibration class 4M3 Transportation environment ETS 300 019 2 2 Class 2 3 public transportation Storage environment shock IEC 68 2 29 Drop IEC 68 2 32 Lightning unit should withstand a 4KV of Input surge 1 2 usec rise fall time 50 usec duration every 10 seconds for both RF and IF ports 3CRWEASYA73 Operating temperature 40 to 65 C 40 to 149 F Wind operational loading up to 246 kph 100 mph wind survival to 241 kph 150 mph Vibration class 4M3 Transportation environment ETS 300 019 2 2 Class 2 3 Public Transportation Storage environment shock IEC 68 2 29 Drop IEC 68 2 32 Lightning unit should withstan
7. b g Ensures access point interoperability with other Wi Fi certified products Range up to 10 miles 17 km Network can be extended to buildings across an entire metro area longer distances are possible with external antenna options Antenna choices 4 dBi to 20 dBi panel or omni directional antennas are available to provide maximum RF coverage for a wide range of applications Point to point and point to multipoint wireless bridging and mobile user connectivity Access point repeater and bridge functionality can be independently configured on both radios making the unit extremely flexible for a variety of applications Point to point and point to multipoint topology Flexibility in configuring building to building networks point to multipoint supports up to six bridge connections SECURE AND RELIABLE WPA TKIP WPA2 AES3 64 128 152 bit WEP 802 1X authentication and encryption Toughest industry standard algorithms help keep wireless transmissions private VPN and VLAN pass through Supports secure tunnels and segmented traffic to protect data and provide workgroup containment Weatherproof fire resistant enclosure with integrated antenna Meets stringent outdoor environmental and safety specifications EN EC 60529 IPX4 rated Meets UL and CAN CSA standards for waterproofing Dynamic Rate Shifting Matches the best connection speed in response to physical and traffic con
8. d a 4KV of input surge 1 2 usec rise fall time 50 usec duration every 10 sec for both RF and IF ports PACKAGE CONTENTS 3CRWE920G73 1lg Wireless 54 Mbps Wireless LAN Indoor Building to Building Bridge power adapter for PoE injector power cable s for PoE injector mounting bracket CD ROM with user guide and configuration software warranty booklet 3CRWEASYA73 lla Wireless 54 Mbps Wireless LAN Indoor Building to Building Bridge and 11b g Access Point with internal lightning protection power injector and 30 meter 98 ft power cable PoE inserter wall and pole mounting brackets grounding wire weather proof Ethernet and console cables CD ROM with Setup Wizard software and user s manual warranty booklet WARRANTY AND OTHER SERVICES One Year Limited Hardware Warranty Limited Software Warranty for 90 days 90 days of telephone technical support Refer to www 3com com warranty for details ORDERING INFORMATION PRODUCT DESCRIPTION 3COM SKU 3Com 11g 54 Mbps Wireless LAN Indoor Building to Building Bridge 3CRWE920G73 3Com 11a 54 Mbps Wireless LAN Outdoor Building to Building Bridge 3CRWEASYA73 and 11b g Access Point Indoor Bridge 3CRWE920G73 Accessories 3Com 6 8 dBi Dual Band Omni Antenna 3CWE591 3Com 3 4 dBi Dual Band Ceiling Mount Antenna 3CWE592 3Com 18 20 dBi Dual Band Panel Antenna 3CWE596 3Com 4 6 dBi Dual Band Hallway Antenna 3CWE597 3Com 8
9. dBm 54 Mbps 72 dBm 3CRWEASYA73 802 1la 6 Mbps 88 dBm 9 Mbps 87 dBm 12 Mbps 86 dBm 18 Mbps 84 dBm 24 Mbps 81 dBm 36 Mbps 75 dBm 48 Mbps 72 dBm 54 Mbps 71 dBm 802 11b 1 Mbps 93 dBm 2 Mbps 90 dBm 5 5 Mbps 90 dBm 11 Mbps 87 dBm 802 11g 6 Mbps 88 dBm 9 Mbps 87 dBm 12 Mbps 86 dBm 18 Mbps 85 dBm 24 Mbps 81 dBm 36 Mbps 77 dBm 5 150 5 350 GHz 78 dBm 5 500 5 825 GHz 48 Mbps 73 dBm 54 Mbps 69 dBm 5 150 5 250 GHz 70 dBm 5 250 5 700 GHz 67 dBm 5 725 5 825 GHz 3COM 54 MBPS WIRELESS LAN BUILDING TO BUILDING BRIDGE FAMILY SPECIFICATIONS CONTINUED STANDARDS CONFORMANCE IEEE 802 11b 802 119 802 11a 802 3 802 1X8 WPA23 WPA WEP AES EAP FTP HTTP IAPP NTP SNMP SNTP DFS ANTENNA Indoor Bridge 3CRWE920G73 Antenna must be ordered at time of bridge purchase Outdoor Bridge Access Point 3CRWEASYA73 Integrated 17 dBi antenna 18 horizontal beamwidth 18 vertical beamwidth unit supports 1 external 802 11a and 2 external 802 11g antennas with N connectors SECURITY 3CRWE920G73 64 128 bit WEP WPA TKIP encryption WPA PSK AES authentication Local MAC address filtering VPN and VLAN pass through 3CRWEASYA73 WPA TKIP WPA2 AES 40 64 104 128 128 152 bit WEP Local MAC authentication RADIUS MAC authentication Local MAC address filtering RADIUS client support Access Control Lists ACLs SSL SSH IEEE 802
10. ditions so wireless connections stay reliable INSTALLATION AND MANAGEMENT CONVENIENCE Power over Ethernet PoE support eliminates the need to locate the device near existing AC power outlets a power injector is supplied with all building to building bridges Dynamic Frequency Selection DFS Detects radar signals that must be protected against IEEE 802 11a interference automatically switches the 802 11a operating frequency to one that is not interfering with the radar systems Web browser SNMP and 3Com Network Director support Bridges can be managed from anywhere LANs may be seamlessly integrated with enterprise management tools Setup wizard Simplifies setup procedures t Data throughput can vary depending upon several factors including network traffic load distance between bridges antennas line of sight conditions and local and remote electromagnetic emissions EMI and Freznel zone obstructions Maximum range of 10 miles requires 3Com wireless building to building bridges at both ends Outdoor Building to Building Bridge and 11b g Access Point 3CRWEASYA73 only Not available with Outdoor Building to Building Bridge and 11b g Access Point 3CRWEASYA73 Not available with Indoor Building to Building Bridge 3CRWE920G73 Using IEEE 802 11a for bridging is not recommended in countries requiring radar detection as link speed and quality may be adversely affected due to Dynamic Frequency S
11. eeds wherever they happen to be working even outdoors or in a remote facility across town Extending the network beyond the reach of Ethernet cabling gives users more freedom and helps them be more productive The bridges support both point to multipoint and point to point operation to meet a variety of configuration requirements from left 3Com 11a 54 Mbps Wireless LAN Outdoor Building to Building Bridge and 11b g Access Point 11g 54 Mbps Wireless LAN Indoor Building to Building Bridge 3COM 54 MBPS WIRELESS LAN BUILDING TO BUILDING BRIDGE FAMILY KEY BENEFITS CONTINUED BRIDGE AND ACCESS POINT COMBINATION The 3Com 11a Outdoor Building to Building Bridge and 11b g Access Point provides point to point or point to multipoint bridge functionality while simultaneously using another band for access point operation providing connectivity for mobile users The access point repeater or bridge functionality can be independently configured on both radios making the product extremely flexible for a variety of applications The bridge function supports data rates up to 108 Mbps between buildings or to offsite locations The access point function provides connectivity at up to 108 Mbps for as many as 128 users With access point and bridging functionality on the same unit mobile users can link to the network and the traffic can be backhauled over a wireless point to point or point to multipoint bridge link to another unit attached to
12. election 3COM 54 MBPS WIRELESS LAN BUILDING TO BUILDING BRIDGE FAMILY 3COM 11G 54 MBPS WIRELESS LAN OUTDOOR BUILDING TO BUILDING BRIDGE SAMPLE DEPLOYMENTS Point to Point Bridging 3Com WLAN bridges can be used to join sites together over wireless links that are fast reliable and secure Point to Multipoint Bridging A single 3Com WLAN bridge can connect to multiple remote facilities providing a cost effective way to connect buildings across Campus or across town s wwirele gt m aN prid9 3COM 54 MBPS WIRELESS LAN BUILDING TO BUILDING BRIDGE FAMILY Outdoor Wireless Access The 3Com Outdoor WLAN Bridge AP can be mounted anywhere wireless access is required Throughout an Enterprise college or hospital campus or mounted on the side of a building the unit provides up to 108 Mbps connectivity for mobile users on 802 11a and 802 11g and up to 11 Mbps connectivity on 802 11b arters wniretes apto peada poA Tamiri Pron LaptoP pDA l one Ari PO yoNi Outdoor Wireless Bridging and Access The 3Com Outdoor WLAN Bridge AP can provide access point services on one radio while providing wireless backhaul on the other radio Access points can be distributed throughout a campus shopping mall park or apartment complexes wherever wireless coverage is required and can be mounted mounted anywhere power is available Network Internet connectivity is then provided through a w
13. ireless backhaul link to another unit attached to the corporate network Internet 5 rrer yeadat en irets F g dge Al mani phone apto j me pron No 3COM 54 MBPS WIRELESS LAN BUILDING TO BUILDING BRIDGE FAMILY SPECIFICATIONS Using IEEE 802 1 1a for bridging is not recommended in countries requiring radar detection as link speed and quality may be adversely All information in this section is relevant to all members of the 3Com Building to Building Bridge family unless otherwise stated MEDIA INTERFACES Indoor Bridge 3CRWE920G73 RJ 45 l1OBASE T 100BASE TX 802 11b g Outdoor Bridge Access Point 3CRWEASYA73 10BASE T 100BASE TX 802 11a b g WIRELESS DATA RATES 3CRWE920G673 802 11a 802 11b 11 5 5 2 1 Mbps 802 119 54 48 35 24 18 12 9 6 Mbps 3CRWEASYA73 802 11a g 6 9 12 18 24 36 48 54 Mbps up to 108 Mbps turbo and super modes 802 11b 1 2 5 5 11 Mbps FREQUENCY BAND 3CRWE920673 802 11b g 2 4 2 4835 GHz 3CRWEASYA73 802 11a 5 GHz 802 11b g 2 4 GHz USERS SUPPORTED Up to 64 simultaneous wireless users per access point radio for a total of 128 OPERATING CHANNELS Use of this product is only authorized for the channels approved by each country To conform to FCC and other country restrictions this product may be limited in the channels that are available MODULATION TECHNIQUE 802 11a BPSK QPSK 16 QAM 64 QAM 802 11b g CCK BPSK QPSK OFDM MEDIA
14. tection An internal heater is included to help keep it operational in extreme cold environments Dynamic Rate Shifting helps keep network connections available POWER FLEXIBILITY To simplify installation where AC power outlets may not be readily available Power over Ethernet PoE is supported on all bridges The outdoor bridges require a custom PoE inserter included with the unit to support the higher power required for the embedded heater The included power inserter also provides additional lightning protection which is critical when mounting any communications equipment outdoors CONVENIENT INSTALLATION AND MANAGEMENT Setup wizard software makes installation and configuration easy Once setup is complete the building to building bridges can be remotely managed using a standard Web browser or SNMP management tools 3COM 54 MBPS WIRELESS LAN BUILDING TO BUILDING BRIDGE FAMILY FEATURES AND BENEFITS ECONOMICAL HIGH SPEED CONNECTIVITY Cost effective wireless building to building links Rapid return on investment in as little as two to three months by eliminating fiber cable installation or recurring T1 E1 line costs wireless building to building bridge deployments cost about one tenth what cabling would cost with no right of way or trenching issues High speed 54 Mbps data rate 108 Mbps for bridge access point Much higher throughput than 1 5 2 0 Mbps T1 E1 lines OPEN AND FLEXIBLE Wi Fi CERTIFIED a
15. ven is accurate 3Com does not accept liability for any errors or mistakes which may arise All specifications are subject to change without notice 401004 003 01 08
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