Cisco AIR-MP20B Manuale utente
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Preface
This guide is designed to help you install an IEEE 802.11g-compliant radio
in a Cisco Aironet 1100 or 1200 Series Access Point. Detailed installation
and configuration information can be found in the following documents:
•Cisco Aironet 1100 Series Access Point Hardware Installation Guide
•Cisco Aironet 1200 Series Access Point Hardware Installation Guide
•Cisco IOS Software Configuration Guide for Cisco Aironet Access
Points
Note Before installing your 802.11g radio, make sure that you upgrade to
Cisco IOS Release 12.2(13)JA or later. If you do not upgrade, the
access point will continually reboot.
Documentation for the 1100 and 1200 series access points is available at
Cisco.com. Follow these links to access them:
http://cisco.com/en/US/products/hw/wireless/ps4570/tsd_products_support_
series_home.html
http://cisco.com/en/US/products/hw/wireless/ps430/tsd_products_support_s
eries_home.html
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Introduction
The Cisco Aironet IEEE 802.11g-compliant radio (hereafter called the
802.11g radio) is designed to upgrade 1100 and 1200 series access points to
IEEE 802.11g standards. The radio delivers 100 milliwatts (mW) maximum
transmit power at 1, 2, 5.5, and 11 megabits per second (Mbps) data rates and
30 mW maximum at all other data rates. The radio supports data rates of up
to 54 Mbps.
This guide provides instructions for installing or replacing an 802.11g radio
in an 1100 or 1200 series access point. The following operations summarize
the upgrade procedure:
1. Remove all cables and power connections from the access point.
2. Follow standard electrostatic discharge (ESD) procedures.
3. Place the access point on an ESD-protected work surface.
4. Open the access point’s radio access cover.
5. Install the new 802.11g radio card.
6. Close the access point’s radio access cover.
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Caution ESD can damage the Cisco Aironet client radio and the internal
components of the access point. It is recommended that the
802.11g radio upgrade procedures be performed by an
ESD-trained service technician at an ESD-protected
workstation.
Unpacking the Radio
Each 802.11g radio is shipped with the following items:
•This radio upgrade guide
•A product registration card
•A T-10 tamper-resistant Torx L-wrench (for 1200 series access points
only)
•Access point compliance labels (one for the 1100 and two for the 1200
series access points)
If anything is missing or damaged, contact your Cisco representative for
support.
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1100 Series Installation Instructions
Note Before installing your 802.11g radio, make sure that you upgrade to
Cisco IOS Release 12.2(13)JA or later. If you do not upgrade, the
access point will continually reboot.
Preparing the Access Point and Work Area
Follow these steps to prepare your access point and work area before
installing the 802.11g radio:
1. Remove all cables and power connections from the access point.
2. Place the access point on an ESD-protected work surface.
3. Remove all static-generating items from the work area, such as plastic
material, styrofoam cups, and other similar items.
4. Place the access point and the new 802.11g radio (in its antistatic bag)
on an antistatic work surface.
5. Discharge any static buildup on your body by touching a grounded
surface (antistatic work surface) before proceeding.
6. Follow standard ESD procedures during all phases of the process.
5
Removing the Back Cover
Follow these steps to remove the access point’s back cover:
1. Position the access point so that its back cover is facing up.
Caution ESD can damage the internal access point components and the
802.11g radio if they are not handled properly.
2. Remove the back-cover retaining screw using a Philips screwdriver as
shown in the following illustration.
1Back cover screw 2Back cover
95757
2
1
6
3. Hold the front cover with one hand, and with the other hand gently slide
the back cover towards the connector end of the unit.
4. Gently lift the connector end of the back cover and remove the cover.
Removing the 2.4-GHz Radio
Follow these steps to remove the 2.4-GHz radio card from your access point:
1. Gently lift the top of the antenna card until it clears the plus-shaped (+)
support post as shown in the following illustration.
7
2. Gently pull the antenna card to remove it from the notch in the support
bracket. Do not disconnect the antenna wire connectors.
3. Push the card-retaining clips (on each side of card) away from the radio
card (see the previous illustration). When released, the radio card springs
up. Do not disconnect the antenna wires.
1Plus-shaped (+) support post 42.4-Ghz radio card
2Antenna card 5Card retaining clips
3Support bracket 6Mini-PCI connector
95755
1
2
34
5
6
5
8
Note If the radio card does not spring up, slightly loosen the support
bracket screws.
4. Remove the 2.4-GHz radio card from the mini-PCI connector by
performing the following operations:
a. Grasp the radio card only on the edges, being careful not to touch
components on the board or the gold connector pins.
b. Remove the 2.4-GHz card from the mini-PCI connector.
5. Place the radio card and antenna card on the ESD-protected work
surface.
Caution You can damage the connectors if you use long-nose pliers or
similar tools during the removal process. To avoid damaging the
antenna wire assemblies, remove them by hand.
6. Use your fingers to carefully remove the antenna wire connectors from
the 2.4-GHz radio card. Do not remove the antenna wire connectors from
the antenna board.
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Caution Do not pull the antenna wire to remove the connector from the
radio card. Damage to the wire and connector will result.
7. Place the 2.4-GHz radio card into an anti-static bag.
Note Do not put the antenna card in the anti-static bag. You will
connect it to the 802.11g radio card.
1Antenna card 22.4-GHz radio card
95751
2
1
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Installing the 802.11g Radio
Follow these steps to install the 802.11g radio:
Caution ESD can damage the internal access point components and the
802.11g radio if they are not handled properly.
1. Carefully remove the 802.11g radio from its anti-static bag.
2. Grasp the card only on the edges, being careful not to touch components
on the board or the gold connector pins.
3. Place the radio on the anti-static work surface next to the antenna card.
Caution Do not use long-nose pliers or similar tools. To avoid damaging
the antenna wire assemblies, handle them by their connectors.
4. Use your fingers to carefully connect the antenna wire connectors to the
mating connectors on the 2.4-GHz radio card as shown in the illustration
on the following page.
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