Installation Guide
D-Link DWL-1800
Wireless Outdoor Bridge

Package Contents

Indoor unit
Outdoor unit with integrated antenna
Pole mounting kit for the Outdoor unit(includes two brackets and four sets of screws,
nuts and washers)
110/220V AC Power Cord
20 meter Indoor to Outdoor cable
3 shielded RJ-45 connectors
CD containing: Manual and Configuration Utility
Quick Installation Guides

This Quick Installation Guide is intended for experienced installers and network administrators.
Please refer to the D-Link AirPremier DWL-1800 Manual on the CD for further details and
information regarding the installation procedures.
The Base Unit Station DWL-1800B is a required product in all
installations, wether PtP or PtMP architecture; the remote stations
can’t communicate to each others without DWL-1800B.

Outdoor units and antennas should be installed ONLY by
experienced installers who are familiar with local building and
safety codes and, wherever applicable, are licensed by the
appropriate authorities. Failure to do so may void the D-Link
product warranty and may expose the end user or the service
provider to legal and financial liabilities.
D-Link and its resellers or distributors are not liable for injury,
damage or violation of regulations associated with the installation
of outdoor units or antennas.

System Description
The products come in two options: the basic DWL-1800B (BU) and DWL-1800R (RB) units
come with a high gain flat antenna integrated on the front cover of the Outdoor unit. In this
model, the front cover also functions as a protective sun cover.

The installation process should follow these general steps:
Select an appropriate locations for the Outdoor unit, the antenna (if using an external
antenna) and the Indoor unit.
Connect a ground cable between the Outdoor unit and an appropriate grounding point.
Remove the service box assembly of the Outdoor unit, unscrew the top nut and route the
indoor-outdoor cable through the top nut and the service box. Assemble an RJ-45
connector on the cable, connect it to the Ethernet connector, replace the service box and
tighten the nut. Make sure that the external jack of the cable is well inside the service
box to guarantee a good sealing. Route the cable to the location selected for the Indoor

Preparing the Indoor-to-
Outdoor Cable
The Indoor-to-Outdoor cable provides
pin-to-pin connection on both sides.
It is supplied open-ended, to allow the
installer to conveniently route the cable
through the service box of the Outdoor
unit and through a wall into the building.
The following diagram shows the wire
pair connections required for the Indoor-
1 2 3 4 5 6 7 8
to-Outdoor cable.

4 + 5
1 + 2
7 + 8
3 + 6

Mount the Indoor unit. Assemble an RJ-45 connector with a protective cover on the
indoor side of the Indoor-to-Outdoor cable and connect it to the Indoor unit’s Radio
port. Prepare the power cable (if supplied open ended) and use it to connect the Indoor
unit to the AC mains.

Note: The Indoor unit should be connected to the power source only after it has been
connected to the Outdoor unit.

Note: If the power cord supplied with the unit is open ended, connect to it a power
plug appropriate to the country in which the unit is being installed. The color
codes of the cable are:

brown phase
blue neutral
yellow/green grounding

The operating AC mains voltage of the Indoor unit is
marked on the rear panel of the unit

5. Connect
Indoor unit Ethernet port to the Ethernet hub using a straight Ethernet
cable or directly to the PC’s NIC using crossed cable.
Align the antenna and verify connectivity with the other unit(s).

To perform antenna alignment:
1. Power on both units.
2. Synchronize the units by aligning the antennas at the main and remote sites until
maximum signal quality is obtained. Check the signal strength RSSI bar on the bottom
panel of the DWL-1800R (RB) bottom panel. If the received signal quality is lower than
expected for this antenna/range combination, change antenna height and verify RF cables
Verifying Correct Operation
To verify proper operation of the Outdoor unit, view the LED indicators located on the bottom
panel of the unit as shown in the following table:

Outdoor Unit LEDs
Name Description
WLAN Wireless
Blinking Green – Data received or transmitted on wireless
link. Blinking rate is lower when there is no wireless traffic.
Self Test and Power
Green – Self test passed and 48VDC power is received by
the outdoor unit
Red – Self test failed. Firmware did not loaded successfully.
Ethernet activity /
OFF –Ethernet connectivity is OK. No traffic activity
detected on the port.
Blinking Green –Ethernet connectivity is OK, with traffic
on the port.
Red – No Ethernet connectivity.

DWL-1800R (RB): Received Signal Strength Indication
DWL-1800B (BU): Number of associated RB units
To verify proper operation of the Indoor unit, view the LED indicators located on the front
panel of the unit as shown in the following table:

Indoor Unit LEDs
Name Description
Green -The Indoor unit supplies 48VDC to the Radio
Off - No power is supplied to the Radio port.
Self Test and Remote
Off – No Ethernet connectivity has been detected
Ethernet Link
between the outdoor unit and the device connected to
the indoor unit.

Orange– Self-test passed and Ethernet connection
between the outdoor unit and the device connected to
the indoor units is detected.
Note: The LINK LED indicates end-to-end
connection between the outdoor unit and the
Ethernet connection to the indoor unit.

Quick Start to Wireless Networking
Perform the following steps to configure a WLAN for the first time:
1. Physically connect the DWL-1800B/DWL-1800R units to the Ethernet LAN. Make sure they
are switched on. The D-Link AirPremier DWL-1800 wireless network will be up and
running immediately. If you are content with the default settings of the DWL-1800B/DWL-
1800R units, you can stop right here. It is more likely however, that you want to assign
different radio frequencies to each DWL-1800B/DWL-1800R, or impose some restrictions
on the use of your wireless network.
2. To be able to manage the DWL-1800B/DWL-1800R units via SNMP, each DWL-
1800B/DWL-1800R needs a unique IP address. If you provide a DHCP or BOOTP service
on your LAN (and have sufficient free IP addresses available) this will be taken care of
automatically. If not, refer to User's Guide for further information on assigning IP addresses.
3. Use the D-Link AirPremier DWL-1800 Configuration utility to configure the network
settings according to your needs.
4. Select the radio channels of the DWL-1800B/DWL-1800R units according to your cell plan.
See the User's Guide for further details and information regarding cell planning and channel

Preparing The Indoor To Outdoor Cable

The Indoor-to-Outdoor cable provides pin-to-pin connection on both sides. It is supplied open-
ended at both sides, to allow the installer to conveniently route the cable into the waterproof seal
off the Outdoor unit and through holes in walls.
The figure below shows the wire pair connections required for the Indoor-to-Outdoor cable.
4 + 5
1 + 2
7 + 8
3 + 6

Use a standard crimp tool for RJ45 connectors to prepare the wires, insert them into the
appropriate pins and use the crimp tool to crimp the connector. Make sure to do the following:
a) Remove as smaller length as possible of the external jacket to verify that the external jacket
will be well inside the service box when connected to the Outdoor unit to ensure good
b) Take back the shield drain wire before inserting the cable into the RJ-45 connector, to
ensure a good connection with the connector’s shield after crimping.

Connecting the Indoor-to-Outdoor Cable

1. Remove the two screws holding the waterproof seal assembly to the Outdoor unit and
remove the waterproof seal.
2. Unscrew the top nut from the waterproof seal.

Routing the Indoor-to-Outdoor Cable through the Waterproof Seal

3. Route an uncrimped straight Ethernet cable (8-wire, 24 AWG pin-to-pin) through the top
nut and the waterproof seal.
Note: The 8-wire cable should be shielded.
4. Insert and crimp an RJ45 connector.
5. Connect the cable to the outdoor unit RJ45 connector.
6. Replace the waterproof seal assembly to the Outdoor unit and then replace the top nut.
Make sure that the external jack of the cable is well inside the service box to guarantee a
good sealing.
7. Route the cable to the location selected for the Indoor unit.
8. Assemble an RJ-45 connector with a protective cover on the indoor side of the Indoor-to-
Outdoor cable and connect it to the Indoor unit’s Radio port.

System Troubleshooting

The following troubleshooting guide provides answers to some of the more common problems
that may occur when installing and using the D-Link Air Premier DWL-1800. If problems not
mentioned in this guide should arise, checking the Ethernet and WLAN counters may help. If
the problem persists, please feel free to contact your local distributor or the D-Link Technical
Support Department.
Troubleshooting Guide
Problem and
Possible Cause
Corrective Action
No power to unit. Power cord is not properly Verify power cord is properly connected to
Power LED is off.
the DWL-1800 unit and to the power outlet.
Failure to establish
1. Power supply to units
1. Verify power to units.
wireless link.
may be faulty
2. Verify that all units in the network have
2. The DWL-1800R units
the same ESSID (ESSID must be identical
LED is off and unit
may not have the same
in all units in the WLAN; the ESSID is case
resets every few
ESSID as the DWL-
sensitive). Check that the units are on the
same channel.
3. Verify wireless link
• Set DWL-1800B and DWL-
1800R units side by side.
• Power on each unit and see if a
wireless link is established
• If the units fail to associate, reset
units to factory default values.
The units should now establish a
wireless link.

Problem and
Possible Cause
Corrective Action
Failure to establish
1. Power supply to units
1. Verify power to units.
wireless link (“D”
may be faulty.
2. Verify that all cables are con-
2. Cables may be
nected securely.
improperly connected
3. Refer to previous Section and
3. There may be some
verify wireless link between the
problem with antenna
4. Verify that the antenna(s) are
properly installed (see relevant
section in this manual):
• Check antenna alignment.
• Verify that antenna
polarization is the same at both
• Verify that the range matches
• Verify line-of-sight/antenna
alignment/antenna height.
Wireless link
1. Ethernet hub port or 1. Check that the LINK LED is lighted
established, but
UTP cable is faulty.
Green. If this is not the case, the port is
there is no Ethernet
2. Ethernet port in unit is inactive. Try another port on the hub or
activity (DWL-
another UTP cable.
1800B and DWL-
2. Verify that Ethernet port in unit is
1800R units).
1. The
working. Ping unit to verify Ethernet
is associated to a
DWL-1800B unit that is 3. Verify that you are using a cross-over
not connected correctly to UTP cable (pins 1 & 3, 2 & 6) if connected
the LAN.
directly to a workstation, or a straight-
through cable if connected to a hub.
4. Check the unit’s LINK LED indicator and
check the Ethernet counters in the monitor
to verify Ethernet activity (see manual
section 3.3.4).
5. Check that the DWL-1800B is correctly
connected to the LAN.

DWL-1800 FAQ

Can the DWL-1800R indoor unit be placed outdoors?

It is not recommended. The DWL-1800 indoor units are specified to operate between 0°C and
40°C and is not weather proof so it is best to mount the DWL-1800R indoors or in a protective
Do DWL-1800 units support 802.1Q VLAN?
Yes, but the support is limited to transparent operation. This means that the DWL-1800 does
not take any action on 802.1Q frames, but will transparently pass them within a VLAN
What is the maximum number of networked PCs the DWL-1800B/ DWL-1800R can learn?
1024 network MAC addresses can be learned by the DWL-1800B/DWL-1800R from the LAN
Can the DWL-1800B/DWL-1800R be used for multi-point as well as point-to-point links?
Yes. The DWL-1800B can support multiple DWL-1800R units creating a point-to-multi-point
How many DWL-1800R units can one DWL-1800B support?
The maximum number of associations is 128.
What is the practical limit to the number of DWL-1800R units per DWL-1800B? And, what
performance can I expect for a multi-point link?

This depends upon average throughput expectations. All clients would have the maximum
throughput available for burst traffic, however the overall average would depend on the
utilization of the network. For example, in a heavily utilized network needing about 350Kbps
to 500kbps average net throughput per site, 9 to 12 DWL-1800R’s would be the limit. For a
moderately utilized network needing about 175Kbps to 258Kbps average, 18 to 24 DWL-
1800R’s should be used, and for a lightly used network needing 32Kbps to 48Kbps average net
throughput per site could use up to 128 DWL-1800R’s.
What is the range of the DWL-1800B/ DWL-1800R Bridges?
15 miles/24Km (FCC) or 10 KM (ETSI) can be achieved using the UNI-24 antenna kit for a
point-to-point link. Consult the antenna and accessory guide range tables for distances using
other antennas.
Does the DWL-1800B supports 802.1d spanning tree protocol?
No, the DWL-1800B/DWL-1800R does not support spanning tree.

What is the normal PER (Packet Error Rate) for the DWL-1800B/DWL-1800R?
The error rate will be about 4%-6% (transmitted fragments vs. retry count). This is typical
when operating in a non-interference environment at maximum range for bi-directional traffic
loads. If the traffic load is more uni-directional, then the PER will be less.
What is the best value for the CW min parameter on the DWL-1800?
Setting the CW min parameter to 31 for heavy bi-directional traffic loads will minimize the
PER. Setting the CW min to 15 will improve performance for more uni-directional traffic loads.
CW min 7 should only be used for short-range point-to-point links, and 63 should be used for
large, long-range multi-point links.
Is the D-Link AirPremier DWL-1800 compatible with other D-Link wireless equipment from
other vendors?

Yes. However, for the outdoor bridges, interoperability can vary from vendor to vendor and in
some cases it may not operate if the manufacturer’s implementation is not pure 802.11b. The
DWL-1800B/DWL-1800R can operate at 1, 2Mbps 5.5Mbps and 11Mbps with D-Link Air and
Air Plus wireless family products. D-Link Air Premier DWL-1800 units are fully WI-FI
How many DWL-1800B or DWL-1800R units can be collocated on the same building or

You can collocate up to 3 DWL-1800B or DWL-1800R units on the same structure. Each
unit is assigned to one of the non-overlapping channels, 1, 6, or 11.
Can a Frequency Hopping network operate in the same area as the D-Link Air Premier

Yes, but in a collocated network both products will suffer some a decrease in performance. The
degree of performance loss depends on network utilization. For example, the higher the utilization
of the Frequency Hopping network, the higher the level of impact on the Direct Sequence (DWL-
1800) network, and vice versa. Typically, in light to moderately utilized networks, the performance
loss is not significant.
Can I use D-Link Air Premier DWL-1800 Bridges to feed a Frequency Hopping
distribution point?
Yes, bandwidth sharing between the Direct Sequence and Frequency Hopping products can
be minimized if the network is designed using cross-polarized directional antennas with as
much spatial separation as possible. Contact technical support for more information.


What is the throughput of the D-Link Air Premier DWL-1800?
The DWL-1800B/DWL-1800R bridge link typical performance is 4.2Mbps using TCP and
6.2Mbps using UDP. For long-range links, the performance drops by about 5%.
What if the D-Link Air Premier DWL-1800 link experiences interference?
If interference is affecting the DWL-1800 link, one of the other channels may be selected to
operate away from the frequency of the interference. Also, physically re-locating the antennas
may help.
What is the typical latency of a DWL-1800B/DWL-1800R?
A point-to-point link would realize about 3mS latency.

Can the DWL-1800B/ DWL-1800R firmware be upgraded?
Yes, the firmware in the DWL-1800B/DWL-1800R is stored in flash and is upgraded using the
built in Configuration Utility or the TFTP server.
Can the DWL-1800B/DWL-1800R flash be erased or the firmware changed by an
unauthorized person?

No, the TFTP server in the DWL-1800B/DWL-1800R requires the SNMP write community
name (password) to perform an upgrade.
Can the firmware flash be corrupted when upgrading to a new version?
Yes, if the TFTP file transfer is interrupted during a flash update the firmware may be
corrupted. The D-Link Air Premier DWL-1800 has a backup flash, which contains the
previous version for firmware. If the primary flash is corrupt, then the backup is automatically
used to return the unit to an operating state.
When does the back up flash image get upgraded?
After completing a firmware upgrade, the backup flash containing the old firmware version is
overwritten with the new version on the new power on cycle.
Can D-Link Air Premier DWL-1800 firmware be downgraded?
Yes, an earlier version of firmware can overwrite a newer version.
Can the previous version of firmware be kept?
The previous version of firmware cannot be kept on the DWL-1800 itself, but can be stored on
your PC and loaded if needed.
Can the regulatory domain (country) of a DWL-1800 unit be changed?
No. The regulatory domain is factory set.
How can the DWL-1800 be configured or managed if the SNMP Community name has been

Press the reset button on the top panel with a paper clip. This will set the read and write
Community names to public and private, respectively.

How can the DWL-1800 unit be returned to factory default settings?
There are two ways. One way is to use the Default button on the Station Control Tab in the
DWL-1800 Configuration Utility. The other is to press and hold the reset button on the back of
the unit while powering on the unit. Remember that all settings including IP addresses will be
lost when setting defaults.

What management options are available for the DWL-1800?
The DWL-1800B/DWL-1800R comes with a graphical Configuration Utility that operates on
any Windows based network ready PC. With this utility you can configure and monitor every
DWL-1800 on your network. You can also use the DWL-1800 SNMP MIB on standard
management platforms like SNMPc, and HP Openview.
Does the DWL-1800 offer out-of-band management?
No, the DWL-1800 does not offer out-of-band management, such as a serial port. The DWL-
1800 is managed in-band only via the DWL-1800 Configuration Utility or SNMP.
What installation and site survey tools are available for DWL-1800/DWL-1800?
The DWL-1800 comes with a Windows based manager utility. With this utility you can
configure link parameters and monitor signal quality and RSSI (received signal strength
indication). Optimizing antenna alignment is done using the signal quality and RSSI display.
Any computer on the network can use this utility to manage the DWL-1800B/DWL-1800R.

Technical Support

The most recent software and user documentation is on the D-Link website.
D-Link provides free technical support for customers during the warranty period
on this product.
Customers can contact D-Link Technical Support through the web site.
Please also refer to the list of D-Link locations that is in the next page.

CE Mark Warning
This is a Class B product. In a domestic environment, this product may cause
radio interference, in which case the user may be required to take adequate
Dies ist in Produkt der Klasse B. Im Wohnbereich kann dieses Produkt
Funkstoerungen verursachen. In diesem Fall kann vom Benutzer verlangt
werden, angemessene Massnahmen zu ergreifen.
Advertencia de Marca de la CE
Este es un producto de Clase B. En un entorno doméstico, puede causar
interferencias de radio, en cuyo case, puede requerirse al usuario para que
adopte las medidas adecuadas.
Ceci est un produit de classe B. Dans un environnement domestique, ce produit
pourrait causer des interférences radio, auquel cas l`utilisateur devrait prendre
les mesures adéquates.
Il presente prodotto appartiene alla classe B. Se utilizzato in ambiente
domestico il prodotto può causare interferenze radio, nel cui caso è possibile
che l`utente debba assumere provvedimenti adeguati.
FCC Warning
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of
the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
-Consult the dealer or an experienced radio/ TV technician for help.

La décision N° 01-480 en date du 23 mai 2001 prise par l’Autorité de
Régulation des Télécommunications (ART) autorise l’utilisation d’une
partie de la bande de fréquences 2400-2483,5 MHz pour les réseaux
locaux radioéléctriques (RLAN)
Au niveau national, seule la bande 2446,5-2483,5 MHz est autorisée
pour des produits ayant une puissance limitée à 100 mW
Cette bande de fréquences correspond aux canaux 10,11,12 et 13.
En instal ant et utilisant les produits réseaux sans fils de la gamme
proposée par D-Link, vous vous engagez donc à respecter cette
réglementation et à n’utiliser que ces 4 canaux.

The Decision N° 01-480 taken by ART (Autorité de Régulation de
Télécommunications) on May 23, 2001 authorizes the utilisation of a
part of the 2400-2483.5MHz band for Radio Local Area Network
(RLAN) in France.
Only the 2446.5-2483.5MHz band is authorized for RLAN with
products with a limited power to 100mW.
This band concerns the channels 10, 11, 12 and 13.
Using and installing D-Link Wireless solutions for RLAN, you commit
to respect this regulation et to use only these four channels.

Declaration of Conformity
Hereby, D-Link Corporation, declares that this DWL-1800B, DWL-1800R is in compliance
with the essential requirements and other relevant provisions of Directive 1999/5/EC.
The following importer/manufacturer is responsible for this declaration:
Company Name
: D-Link Corporation
Company Address : No.8, Li-shing Road VII,Science-based Industrial Park, Hsinchu,
Taiwan, R.O.C.
: +886-3-563-6666
Facsimile: +886-3-578-1861
Person is responsible for marking this declaration:
Sam Liang
Name (Full Name)
Position/ Title
August 7, 2002
Legal Signature


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BBS: 1-949-455-1779, 1-949-455-9616