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3

3 C O M

®

1 1 G   5 4 M B P S   W I R E L E S S   L A N   B U I L D I N G - T O - B U I L D I N G   B R I D G E   FA M I LY   D ATA   S H E E T

Specifications

Interfaces 

RJ-45, 10BASE-T/100BASE-TX

802.11b/g 

Wireless Data Rates 

802.11g: 

54, 48, 35, 24, 18, 12, 9 & 6 Mbps

802.11b: 

11, 5.5, 2 & 1 Mbps 

Frequency Band

802.11b/g: 

2.4-2.4835 GHz

Wireless Transmit Power

Outdoor Building-to-Building Bridge: 

17 dBm: +/- 1 dB (US, Canada, Mexico)

20 dBm +/- 1 dB (Europe, UK, Ireland, Latin America)

Indoor Building-to-Building Bridge:

17 dBm (US, Canada, Mexico)

20 dBm EIRP max. depending on antenna and cable
configuration (Europe, UK, Ireland, Latin America)

Network Architecture Type 

Bridge 802.3 to 802.11b/g 

Number of Users/Bridge 

Up to 1000 users 

Wireless Bridges/LAN 

Unlimited 

Modulation Technique

DSSS (Direct Sequence Spread Spectrum)

OFDM (Orthogonal Frequency Division Multiplexing)

Media Access Protocol

CSMA/CA 

Receive Sensitivity 

802.11g:

54 Mbps: -70 dBm

48Mbps: -72 dBm

36 Mbps: -74 dBm

24 Mbps: -77 dBm

18 Mbps: -79 dBm

12 Mbps: -81 dBm

9Mbps: -83 dBm

6 Mbps: -85 dBm

802.11b:

11 Mbps: -86 dBm

5.5 Mbps: -88 dBm

2 Mbps: -89 dBm

1 Mbps: -91 dBm

Standards Conformance

IEEE 802.11b, 802.11g, 802.3, and 802.1X; HTTP,
WPA, WEP

Antenna 

Outdoor Building-to-Building Bridge: 

Integrated 18dBi

directional panel antenna (19° beam angle) 

Indoor Building-to-Building Bridge: 

Antenna must be

ordered at the time of bridge purchase. See Ordering
Information for antenna and cable options.

Security 

64/128-bit WEP, 128-bit AES, WPA TKIP encryption;
WPA-PSK authentication

Local MAC address filtering

VPN and VLAN pass-through 

Networking Protocols 

NetBui, IPX, TCP/IP, Bridging Protocol, Spanning Tree
Protocol, SNMP, RMON, DHCP

Management 

Command line interface (via Telnet or SSH)

HTTP or S-HTTP Web browser interface 

SNMP

3ND 

Remote software upgrades via HTTP

LEDs

Power, LAN activity, Radio activity

Physical Dimensions 

Indoor Building-to-Building Bridge:

Length: 6.9 in (17.5 cm)

Width: 4.76 in (12.1 cm)

Height: 1.4 in (3.6 cm)

Weight: 0.575 lb (0.26 kg)

Outdoor Building-to-Building Bridge:

Length: 15 in (38 cm)

Width: 13.78 in (35 cm)

Height: 2.75 in (7 cm)

Weight: 5.6 lb (2.54 kg)

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 & 15, Fcc Bulletin OEC-65; Canada RSS-
102 Issues 1 & 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+A1: 1995+A2: 1997 Class A,
EN 61000-3-2:2000, EN 61000-3-3:1995+A1:2001

Environmental Operating Ranges 

Operating temperature: 

-33 to 50°C (-27 to 122 °F)

Storage temperature: 

-20 to 70°C (-4 to 158 °F)

Altitude: 

Up to 3 km (1.86 miles)

Humidity: 

5 to 95% non-condensing 

Wind (Outdoor Bridge): 

Operational loading up to 

153 kmph (95 mph); wind survival to 201 kmph 
(125 mph) 

Package Contents

54 Mbps 11g Wireless LAN Indoor or Outdoor
Building-to-Building Bridge

Power adapter/PoE injector 

Power cable for PoE injector

Lightning arrestor (Outdoor B-to-B bridge)

Mounting bracket

CD-ROM with user guide and configuration software

Warranty booklet

Warranty 

One-year limited warranty
Refer to 

www.3com.com

for details

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