3Com 3CRWEASYG73 Service Manual - Page 3

Important Feature Information - us access point

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3Com Wireless 7760 11a/b/g PoE Access Point v1.6.40 Release Notes Page 3 of 6 4. Important Feature Information 4.1 Antenna Configurations The 3Com Wireless 7760 11a/b/g PoE Access Point has two original dual-band antennas (11a/g). If a 3Com external high-gain antenna is to be used, please make sure to select the External High-gain Antenna option in the "Wireless Advanced Settings" page of the user interface. This selection automatically disables antenna diversity and activates only antenna "A". Antenna "A" is the one on the left (looking at the front of the Access Point). Refer to the External Antenna Power information in the following section. CAUTION: When connecting the external antenna, tighten the connector gently. Excessive tightening force may damage the RF connection. CAUTION: When outdoor antennas are used with the access point, 3Com recommends installing a lightning arrestor between the antenna and the access point. 3Com suggests the Altelicon model AL6-NFNFB when the arrestor is installed between two extension cables, or the Altelicon AL6-NMNFB when the arrestor is connected directly to the antenna. See www.altelicon.com. 4.2 External Antenna Power Settings When using external antennas it is necessary to select the appropriate output power in order to remain compliant with spectrum regulations in your country or region. Use the RSMA to SMA 6-inch (15 cm) Antenna Cable (3CWE586) to connect the Wireless 7760 Access Point to an Antenna extension cable (3CWE580, 3CWE581 or 3CWE582). The maximum power setting that may be used with each antenna combination and cable is specified in Tables 1 and 2 below. The table that is relevant for your country is indicated below: Bahamas, Brazil, Canada, Columbia, Dominican Republic, Guatemala, Mexico, Panama, Puerto Rico, Taiwan, United States, United States Minor Outlying Islands, Virgin Islands (US) Use Table 1 All other countries Use Table 2 Note: Not all of the bands or channels indicated below are available in all countries. The channels and bands available to you are controlled automatically by the access point, based upon your country.

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3Com Wireless 7760
v1.6.40 Release Notes
11a/b/g PoE Access Point
Page 3 of 6
4.
Important Feature Information
4.1
Antenna Configurations
The 3Com Wireless 7760 11a/b/g PoE Access Point has two original dual-band
antennas (11a/g). If a 3Com external high-gain antenna is to be used, please make sure
to select the
External High-gain Antenna
option in the “
Wireless Advanced Settings
”
page of the user interface. This selection automatically disables antenna diversity and
activates only antenna “A”. Antenna “A” is the one on the left (looking at the front of the
Access Point).
Refer to the
External Antenna Power
information in the following section.
CAUTION:
When connecting the external antenna, tighten the connector gently.
Excessive tightening force may damage the RF connection.
CAUTION:
When outdoor antennas are used with the access point, 3Com recommends
installing a lightning arrestor between the antenna and the access point. 3Com suggests
the Altelicon model AL6-NFNFB when the arrestor is installed between two extension
cables, or the Altelicon AL6-NMNFB when the arrestor is connected directly to the
antenna. See
www.altelicon.com
.
4.2
External Antenna Power Settings
When using external antennas it is necessary to select the appropriate output power in
order to remain compliant with spectrum regulations in your country or region.
Use the RSMA to SMA 6-inch (15 cm) Antenna Cable (3CWE586) to connect the
Wireless 7760 Access Point to an Antenna extension cable (3CWE580, 3CWE581 or
3CWE582).
The maximum power setting that may be used with each antenna combination and cable
is specified in Tables 1 and 2 below. The table that is relevant for your country is
indicated below:
Bahamas, Brazil, Canada, Columbia,
Dominican Republic, Guatemala, Mexico,
Panama, Puerto Rico, Taiwan, United States,
United States Minor Outlying Islands, Virgin
Islands (US)
Use Table 1
All other countries
Use Table 2
Note:
Not all of the bands or channels indicated below are available in all countries. The
channels and bands available to you are controlled automatically by the access point,
based upon your country.