Cisco Aironet 340 Series User manual

TAKE OUT WHAT YOU NEED
CONNECT AND POWER UPTHE BRIDGE
CONFIGURE THE BRIDGE
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2
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Quick Start Guide
C ISCO A IRONET 340 S ERIES
W
IRELESS B RIDGES
LAN segment A
LAN segment B
File server
Workstation A
Wireless bridge
(root unit)
Wireless bridge
(remote node)
Workstation B
CONSOLE/RS-232C
12-18VDC
I
CONSOLE/RS-232C
12-18VDC
I

1
Take Out What You Need
If any item is missing or damaged, contact your Cisco representative or reseller for support.
Before You Begin
Before beginning installation, determine bridge location. Because the unit is a radio device, unit
and antenna location are important to ensure optimum radio range and throughput:
• To maximize the range of a building-to-building connection, install the antenna as high as
possible.
• Maintain a clear line of sight between wireless bridge antennas. Obstructions may impede
performance or limit bridge ability to transmit and receive data.
• Place directional antennas at both ends with maximum path clearance.
Cisco Aironet 340 Series Wireless Bridge
Bridge power pack
2.2 dBi dipole antenna
Cisco Aironet 340 Series Wireless Bridge CD
with product documentation
CONSOLE/RS-232C
12-18 VDC
I

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Connect and Power Up the Bridge
Note: Before you install the bridge system, we recommend that you test the bridge using the
2.2 dBi antenna included in the package. Then install the wireless bridge with the appropriate
antenna for your application. A lightning arrestor and low-loss antenna cable are included in
the optional antenna kits or can be ordered separately.
Installing the Antenna
1If applicable, with the unit powered off, attach a lightning arrestor to the antenna
connector.
Note: The lightning arrestor provides surge protection to the bridge in the event of a lightning
strike and is highly recommended if the antenna will be located outdoors.
2Connect one end of the low-loss antenna cable to the lightning arrestor connected to the
bridge antenna connector.
Note: Because of FCC and DOC regulations, the antenna connector on the Aironet bridge is
of reverse polarity to the standard TNC connectors.
3Connect the other end of the antenna cable to the 2.2 dBi antenna or to an external
high-gain antenna.
4Mount the bridge antenna at an appropriate elevation to ensure maximum path clearance
and line-of-sight to the other bridge or device.
Installing the Ethernet Connection
The Aironet wireless Ethernet bridge supports three connection types: 10Base2 (Thinnet),
10Base5 (Thicknet), or 10BaseT (twisted pair). Connect only one Ethernet cable to each
bridge. With the power off, connect the appropriate cable from your network to the bridge.
10Base T
10Base 5
10Base 2
Antenna connector

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10Base T
10Base 5
10Base 2
10Base 5
10Base 2
10Base5
connector
10Base2
connector
10Base 2
10Base T
10Base 5
10BaseT
connector
Attaching 10Base2 Cabling
1Attach the 10Base2 (Thinnet) cabling to
a BNC T-connector.
2Attach the T-connector to the 10Base2
connector on the bridge.
3If the unit is at the end of the Ethernet
cable, install a 50-ohm terminator on
the open end of the T-connector.
Caution Removing a terminator
to install extra cable or breaking an
existing cable to install a
T-connector will cause a disruption
in Ethernet traffic. Consult your
LAN administrator before you
change any Ethernet cable
connections.
Attaching 10Base5 Cabling
1Attach the transceiver connector to the
10Base5 (Thicknet) port.
2Slide the locking mechanism into place.
3Attach the other end of the transceiver
drop cabling to an external transceiver.
Attaching 10BaseT Cabling
1Plug the RJ-45 connector into the
10BaseT (twisted pair) port.
2Connect the other end of the twisted
pair cabling to the 10BaseT Ethernet
LAN connection.

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The console port and power connections are on the side of the bridge. The console connection
is required for setting up initial configuration information. After configuration is complete, you
may remove this cable unless or until additional configuration is required via the serial port.
Installing the Console Port and Powering Up the Bridge
CONSOLE/RS-232C
12-18 VDC
I
CONSOLE/RS-232C
12-18 VDC
CONSOLE/RS-232C
12-18 VDC
Power connector
Console port
On/off button
Installing the Console Port Cable
Note: Use a straight-through cable with
9-pin male to 9-pin female connectors.
1Attach the console port cable to the
console port on the bridge.
2Attach the other end of the console cable
to the serial port on a terminal or PC
running a terminal emulation program.
3Set the terminal to 9600 baud, 8data
bits, No parity, 1stop bit, and Xon/Xoff
flow control.
Connecting Power to the Bridge
1Connect the small plug on the end of the
power pack cord into the bridge power
port.
2Plug the power pack into an electrical
outlet (120VAC/60 Hz or
90–264VAC/47–63 Hz, as appropriate).
3Push the on/off button to power on the
bridge.
When power is initially applied to the
bridge, all three indicators on the top
panel will flash in sequence to test the
functionality of the indicators.

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Configure the Bridge
Assigning the SSID
Use the console port to set the Service Set
Identifier (SSID) that allows the wireless
bridge to communicate with other nodes.The
SSID is a unique, case-sensitive identifier that
is attached to selected packets sent out over
the radio network. Nodes associating to the
bridge must use the same SSID or their
association requests will be ignored.
Determine a unique SSID for the bridges and
make sure that all bridges in the network use
the same SSID.
1On the terminal connected to the console
port, select Configuration from the Main
menu.
2From the Configuration menu, select
Radio.
3From the Radio menu, select SSID.
4Enter a value for the SSID option. The
SSID can have up to 32 characters. All
devices in the same radio network must
use the same SSID. This value is case
sensitive.
Assigning IP Information
To enable remote access to the bridge using
Telnet, HTTP, or SNMP, you must assign an
IP address to the bridge.
Note: You can also assign other detailed
internet addressing options, such as gateway
address, subnet mask, or SNMP
configuration. Refer to the user guide on the
product CD for more information.
1On the terminal connected to the
console port, select Configuration from
the Main menu.
2From the Configuration menu, select
Ident.
3Use the INADDR option to assign an IP
address. Be sure to assign a unique IP
address to each bridge.
4Use the INMASK option to define the
internet subnet mask, if appropriate.
5Use the GATEWAY option to define the
gateway address, if appropriate.

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Setting Root Configuration
Before performing detailed configuration, you should determine whether the bridge will be a
root bridge or a non-root bridge. Refer to the Aironet 340 Series Wireless Bridge User Guide
on the product CD for configuration examples. The default setting for a bridge is as a root unit.
Use the following steps to change this setting.
1Access the Configuration Radio menu.
—If you are using a terminal emulator, select Configuration > Radio from the Main
menu.
—If you are using a browser, click Radio under the Configuration heading.
2At the Configuration Radio menu, select on or off for the Enable root mode setting.
—If you are using a terminal emulator, enter a 2to select the Root setting. The prompt
will ask if you are sure you want to change the setting. Enter yto toggle the setting from
on to off, or from off to on.
—If you are using a browser, click Allow Config Changes and then click On to set the
bridge as a root unit, or click Off to set the bridge as a non-root unit.
Once the bridge is configured as a root or non-root unit, you can quit the terminal emulator or
browser, disconnect the console port cable, and install the bridge in its desired location before
proceeding with remote configuration.
Refer to the Aironet 340 Series Wireless Bridge User Guide on the product CD for details on
configuration.

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Safety Information for the Cisco Aironet 340 Series Wireless Bridge
The FCC with its action in ET Docket 96-8 has adopted a safety standard for human exposure
to radio frequency (RF) electromagnetic energy emitted by FCC certified equipment. Cisco
Aironet 340 Series products meet the uncontrolled environmental limits found in OET-65 and
ANSI C95.1, 1991. Proper operation of this radio according to the instructions found in this
manual and the users guide on the Cisco Aironet 340 Series Wireless Bridge product CD will
result in user exposure that is substantially below the FCC recommended limits.
• Do not touch or move antenna(s) while the unit is transmitting or receiving.
• Do not hold any component containing the radio such that the antenna is very close or
touching any exposed parts of the body, especially the face or eyes, while transmitting.
• Do not operate a portable transmitter near unshielded blasting caps or in an explosive
environment unless it is a type especially qualified for such use.
• Do not operate the radio or attempt to transmit date unless the antenna is connected; if not,
the radio may be damaged.
• Antenna use:
—Always orient a di-pole antenna such that it is at least 6 inches (15 cm) away from your
body.
—High-gain, wall-mount or mast-mount antennas are designed to be professionally
installed and should be located at a minimum distance of 12 inches (30 cm) or more
from your body. Please contact your professional installer, VAR, or antenna
manufacturer for proper installation requirements.
—Warning for laptop users: In order to comply with the FCC RF exposure limits, it is
recommended when using a laptop with a PC client adapter, that the adapter’s
integrated antenna should not be positioned closer than 2 inches (5 cm) from your
body or nearby persons for extended periods of time while it is transmitting (or
operating). If the antenna is positioned less than 2 inches (5 cm) from the user, it is
recommended that the user limit exposure time.

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Compliance Information for the Cisco Aironet 340 Series Wireless Bridge
Federal Communication Commission Declaration of Conformity Statement
This device complies with Part 15 rules. Operation is subject to the following two conditions:
1This device may not cause harmful interference, and
2This device must accept any interference received, including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits of a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a residential
environment. This equipment generates, uses, and radiates radio frequency energy, and if not
installed and used in accordance with the instructions, may cause harmful interference.
However, there is no guarantee that interference will not occur. If this equipment does cause
interference to radio or television reception, which can be determined by turning the equipment
on and off, the user is encouraged to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician.
Warning The Part 15 radio device operates on a non-interference basis with the
other devices operating at this frequency. Any changes of modification to said product
not expressly approved by Cisco could void the user’s authority to operate this device.
Professional Installation
Per the recommendation of the FCC, the installation of high gain directional antennas to the
system, which are intended to operate solely as a point-to-point system and whose total power
exceeds the +36 dBm EIRP, require professional installation. It is the responsibility of the
installer and the end user that the high power systems are operated strictly as a point-to-point
system.