3com 8250 Manual De Usuario
E N T E R P R I S E - C L A S S 3 C O M
®
W I R E L E S S L A N A C C E S S P O I N T S 7 2 5 0 / 8 2 5 0 / 8 5 0 0 / 8 7 5 0
3
Security
Authentication:
802.11x Remote Access Dial-In Service (RADIUS)
server-based MAC address authentication. WPA
TKIP authentication using EAP-MD5, EAP-TLS,
EAP-TTLS, and PEAP protocols.
server-based MAC address authentication. WPA
TKIP authentication using EAP-MD5, EAP-TLS,
EAP-TTLS, and PEAP protocols.
Encryption:
Advanced WPA 256-bit encryption (AES),
40/64-bit, 128-bit and 154-bit, WEP shared key
encryption, 3Com proprietary 128-bit Dynamic
Security Link encryption, Dynamic session key
management
40/64-bit, 128-bit and 154-bit, WEP shared key
encryption, 3Com proprietary 128-bit Dynamic
Security Link encryption, Dynamic session key
management
Access Control:
MAC address filtering, sever access control lists.
Performance
253 simultaneous user support
Dynamic rate shifting
Auto network connect
Clear channel select
802.11a turbo mode (not supported by AP 7250)
DHCP passthrough
Dynamic rate shifting
Auto network connect
Clear channel select
802.11a turbo mode (not supported by AP 7250)
DHCP passthrough
Network Management
3NS network management utility
Site Survey tool
Wireless Infrastructure Device Manager and
Wireless LAN Discovery Tool
Wireless LAN Discovery Tool
Embedded web server
SNMP v1- or SNMP v3-compliant management
HP OpenView support
RADIUS accounting
Standards Conformance
Wi-Fi certified, WEP, WPA
IEEE 802.11b, IEEE 802.11a, IEEE 802.11g
IEEE 802.3af (PoE)
CSMA/CA
Radio Operation
Data Rates:
802.11a: 54, 48, 36, 24, 18, 12, 9, 6 Mbps (not sup-
ported by AP 7250)
ported by AP 7250)
802.11g: 54, 48, 36, 24, 18, 12, 9, 6, 11, 5.5, 2, 1 Mbps
Frequency Band:
802.11a: 5 GHz; 802.11g: 2.4 GHz
Wireless Medium:
802.11a: OFDM, 802.11g: OFDM and DSSS (with
Barker coding and CCK for backward compatibility
with 802.11b)
Barker coding and CCK for backward compatibility
with 802.11b)
Operating Channels:
802.11a: 36-64 (8 non-overlapping total), 802.11g:
1-11 (U.S. and Canada), 1-13 (Worldwide; channel
availability depends on local regulations)
1-11 (U.S. and Canada), 1-13 (Worldwide; channel
availability depends on local regulations)
Operating Range (indoor):
802.11a: up to 50 meters (164 feet) transmit and
receive
802.11g: up to 100 meters (328 feet) transmit and
receive
receive
802.11g: up to 100 meters (328 feet) transmit and
receive
Power of Radio:
802.11a: 100mW
802.11g: 100mW
Transmit Power Settings:
802.11a: 17 dBm low band depending on bitrate,
20dBm midband depending on the bitrate;
802.11g: 17 dBm depending on bitrate
20dBm midband depending on the bitrate;
802.11g: 17 dBm depending on bitrate
Receive Sensitivity: Access Point 8250/8500/8750
802.11a:
6 Mbps: -84 dBm, +/- 2 dBm (depending on band)
6 Mbps: -84 dBm, +/- 2 dBm (depending on band)
12 Mbps: -82 dBm
36 Mbps: -73 dBm
54 Mbps: -66 dBm
802.11g:
1 Mbps: -96 dBm
1 Mbps: -96 dBm
2 Mbps: -94 dBm
5.5 Mbps: -92dBm
11 Mbps: -88 dBm
12 Mbps: - 86dBm
24 Mbps: -85 dBm
36 Mbps: - 80dBm
54 Mbps: - 73 dBm
Receive Sensitivity: Access Point 7250
802.11g:
1 Mbps: -91 dBm
1 Mbps: -91 dBm
2 Mbps: -89 dBm
5.5 Mbps: -87 dBm
11 Mbps: -83 dBm
12 Mbps: -81 dBm
24 Mbps: -80 dBm
36 Mbps: -75 dBm
54 Mbps: -68 dBm
Antenna Options:
802.11a: Integrated antenna only; 802.11g:
External antenna options are available, see
"Accessories" under Ordering Information for
detail
External antenna options are available, see
"Accessories" under Ordering Information for
detail
Safety, RF, and Electromagnetic Conformance
Safety:
IEC & EN 60950, UL / CSA 60950, NOM 019
RF:
FCC Part 15.247, Part 15.205, Part 15.209, & Part
15.407, RSS-210, EN 300 328-2, EN 301 893,
TELEC RCR STD 33 & T66
15.407, RSS-210, EN 300 328-2, EN 301 893,
TELEC RCR STD 33 & T66
EMC:
EN 301 489-17, EN 301 489-01
Environmental Operating Ranges
Temperature: 0º C to 40º C (32º F to 104º F); with
external antennas 15º C to 40º C (59º F to 105º F)
external antennas 15º C to 40º C (59º F to 105º F)
Humidity: 5-95% non-condensing
Physical Dimensions
Access Point 8250/8500/8750
Height: 32 cm (12.5 in)
Width: 20 cm (8.1 in)
Depth: 7 cm (2.8 in
Access Point 7250
Height: 20.5 cm (8 in)
Width: 28 cm (11 in)
Depth: 8 cm (3 in)
Package Contents
Access point
Inline PoE power injector with local power cord
(Access Point 8250/8500/8750)
(Access Point 8250/8500/8750)
AC power adapter (Access Point 7250)
CD ROM with management utilities and site survey
tool
tool
10-meter (33-foot) Category 5 Ethernet cable
Mounting bracket and hardware
User guide
Warranty
One-year hardware warranty, 90-day software
warranty
warranty
Specifications
Ordering
Information
Information
3Com Wireless LAN Access Points are
available in the U.S./Canada, Latin America,
Asia-Pacific countries, and Europe.
available in the U.S./Canada, Latin America,
Asia-Pacific countries, and Europe.
Access Points
Product Name
Order Number
Product Description
3Com Wireless LAN Access Point 7250
3CRWE725075A
Ships with one 802.11g radio
3Com Wireless LAN Access Point 8250
3CRWE825075A
Ships with one 802.11g radio and one open radio slot
3Com Wireless LAN Access Point 8500
3CRWE850075A
Ships with one 802.11a radio and one open radio slot
3Com Wireless LAN Access Point 8750
3CRWE875075A
Ships with one 802.11a radio and one 802.11g radio