Industrial Wireless Access Point DM500

Industrial Wireless Access Point
DM500
User´s Manual
User´s Manual
Industrial Wireless Access Point DM500
Important Announcement
The information contained in this document is the property of Welotec GmbH, and is supplied
for the sole purpose of operation and maintenance of Welotec GmbH´s products. No part of
this publication is to be used for any other purposes, and it is not to be reproduced, copied,
disclosed, transmitted, stored in a retrieval system, or translated into any human or computer
language, in any form, by any means, in whole or in part, without the prior explicit written
consent of Welotec GmbH, offenders will be liable for damages. All rights, including rights
created by patent grant or registration of a utility model or design, are reserved.
Disclaimer
We have checked the contents of this manual for agreement with the hardware and software
described. Since deviations cannot be precluded entirely, we cannot guarantee full
agreement. However, the data in this manual is reviewed regularly and any necessary
corrections included in subsequent editions. Suggestions for improvement are welcome. All
other product names referenced herein are registered trademarks of their respective
companies.
Published by
Welotec GmbH
Zum Hagenbach 7
D-48366 Laer, Germany
Tel: +49 (0)2554/9130-00
Fax: +49 (0)2554/9130-10
Mail: info@welotec.com
www.welotec.com
Copyright © 2014 Welotec GmbH, All rights reserved. Technical data is subject to change. All
other product names referenced herein are registered trademarks of their own respective
companies.
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User´s Manual
Industrial Wireless Access Point DM500
Table of Contents
Preface ............................................................................................................ 1
1.
2.
Introduction ............................................................................................. 4
1.1
Product Overview ................................................................................... 4
1.2
Features..................................................................................................... 5
Getting started ........................................................................................ 6
2.1. Inside the Package ................................................................................. 6
2.2. Front & Power Panels ............................................................................ 7
2.3. First Time Installation ............................................................................ 9
2.3.1.
Web Configuration Overview ......................................................... 10
2.4. Factory Default Settings ..................................................................... 13
3.
Web Console Configuration ................................................................. 17
3.1. Administrator Login ............................................................................. 17
3.2. Overview Information .......................................................................... 18
3.2.1.
Secure Wireless Network ................................................................ 18
3.3. Wireless Settings .................................................................................. 19
3.3.1.
Wizard .................................................................................................. 19
3.3.2.
Basic Settings .................................................................................... 19
3.3.3.
Security Settings ............................................................................... 25
3.3.4.
WPS Settings...................................................................................... 28
3.3.5.
WDS Settings ..................................................................................... 29
3.3.6.
Advanced Settings............................................................................ 30
3.3.7.
Wireless Scheduler Settings .......................................................... 32
3.4. Network Settings................................................................................... 34
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3.6. Email Settings ........................................................................................ 36
3.7. DHCP Server .......................................................................................... 37
3.8. Firewall & Filtering ............................................................................... 38
3.8.1.
Wired MAC Filtering ......................................................................... 39
3.8.2.
Wireless MAC Filtering .................................................................... 40
3.8.3.
Ethernet Type Filtering .................................................................... 41
3.8.4.
IP Filtering ........................................................................................... 42
3.8.5.
Management List ............................................................................... 43
3.9. System Log............................................................................................. 44
3.9.1.
Syslog .................................................................................................. 44
3.9.2.
Event Log ............................................................................................ 45
3.10.
System Setup ..................................................................................... 46
3.10.1.
Admin Settings .................................................................................. 46
3.10.2.
Date/Time Settings............................................................................ 47
3.10.3.
Alert Event .......................................................................................... 48
3.10.4.
Firmware Upgrade............................................................................. 48
3.10.5.
Backup & Restore Configuration .................................................. 49
3.11.
System Status .................................................................................... 50
3.11.1.
System Information .......................................................................... 51
3.11.3.
Wireless Client Table ....................................................................... 53
3.11.4.
Traffic Log & Statistics .................................................................... 53
3.11.5.
DHCP Status ....................................................................................... 54
3.11.6.
Ping ....................................................................................................... 54
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Industrial Wireless Access Point DM500
3.12.
4.
Reboot and Restore Default Settings .......................................... 55
Operation Modes .................................................................................. 57
4.1. Regular AP Mode .................................................................................. 57
4.2. WDS Bridge Mode................................................................................. 59
4.3. AP Client Mode ...................................................................................... 64
5.
Applications .......................................................................................... 66
5.1. Basic Access Point Setup .................................................................. 66
5.2. Basic WDS Setup .................................................................................. 67
5.3. Coverage Range Extender Setup ..................................................... 68
5.4. AP Client Setup ..................................................................................... 69
6.
Specifications ....................................................................................... 70
6.1. Hardware Specification ....................................................................... 70
6.2. Software Specifications ...................................................................... 79
6.3. LED Indicators ....................................................................................... 80
Warranty ....................................................................................................... 81
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User´s Manual
Industrial Wireless Access Point DM500
1
Preface
This manual supports you during the installation and configuring of the DM500 Industrial
Wireless Access Point only, as well as it explains some technical options available with the
mentioned product. As such, it contains some advanced network management knowledge,
instructions, examples, guidelines and general theories designed to help users manage this
device and its corresponding software; a background in general theory is a must when
reading it. Please refer to the Glossary for technical terms and abbreviations.
Who Should Use This User Manual
This manual is to be used by qualified network personnel or support technicians who are
familiar with network operations; it might be useful for system programmers or network
planners as well. This manual also provides helpful and handy information for first time users.
For any related problems please contact us.
Supported Platform
This manual is designed for the DM500 Industrial Wireless Access Point and that model only.
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Industrial Wireless Access Point DM500
2
European Community, Switzerland, Norway, Iceland, and Liechtenstein
Model: DM500
Declaration of Conformity with regard to the R&TTE Directive 1999/5/EC
This equipment is in compliance with the essential requirements and other relevant provisions
of 1999/5/EC.
The following standards were applied:
EMC
EN 301.489-1 v1.4.1; EN 301.489-17 v1.2.1
Health & Safety
EN60950-1: 2001; EN 50385: 2002
Radio
EN 300 328 v 1.7.1; EN 301.893 v 1.5.1
The conformity assessment procedure referred to in Article 10.4 and Annex III of Directive
1999/5/EC has been followed.
Note: This equipment is intended to be used in all EU and EFTA countries. Outdoor use may
be restricted to certain frequencies and/or may require a license for operation. For more
details, contact Welotec Technical Support.
European Union
This system has been evaluated for RF exposure for humans in reference to the ICNIRP
(International Commission on Non-Ionizing Radiation Protection) limits. The evaluation was
based on the EN 50385 Product Standard to Demonstrate Compliance of Radio Base stations
and Fixed Terminals for Wireless Telecommunications Systems with basic restrictions or
reference levels related to Human Exposure to Radio Frequency Electromagnetic Fields from
300 MHz to 40 GHz. The minimum separation distance from the antenna to a general
bystander is 20 cm (7.9 inches).
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3
Caution
Beginning from here there will be extreme caution exercised.
Never install or work on electrical cabling during periods of lightning activity.
Never connect or disconnect power when hazardous gases are present.
WARNING: Disconnect the power and allow to cool 5 minutes before touching.
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Industrial Wireless Access Point DM500
4
1. Introduction
1.1
Product Overview
The DM500 Wireless Access Point series is our new line of wireless products designed to
provide a wireless connectivity to clients or mobile stations creating a complete solution for
your industrial wireless networking.
As an example, you can connect PC´s or IP Cameras to a switch and connect these two to a
Wireless Access Point device; this example illustrates how to connect devices to a local
area network or a backbone network,
Fehler! Verweisquelle konnte nicht gefunden
werden.. The DM500 series provide several functionalities to support mobile and wireless
networking.
Fig. 1 DM500
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Industrial Wireless Access Point DM500
1.2
5
Features
The DM500 is our latest addition to our Industrial Wireless products; its small size but
powerful architecture makes it a perfect choice for industrial/manufacturing needs in which
size is a decisive factor. It rewards our customers with superb connectivity. Among its many
characteristics, we could mention:

Stream input/output with maximum link speed of 300 Mbps and throughput of 100 Mps
(environment dependent).

5 GHz frequency support to reduce interference on 2.4 GHz with other wireless devices.

Wireless Isolation to enhance security between wireless clients.

Different modes of operation:
o
Regular AP
o
WDS Bridge
o
AP Client
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Industrial Wireless Access Point DM500
6
2. Getting started
2.1. Inside the Package
Inside the product purchased you will find the following items:
Item
DM500
Antenna
Terminal Block
Mounting Kit
Documentation + CD
Quantity
1
2
1
1
1
Description
Industrial Wireless Access Point
3~5 dBi antenna
3-pin lockable terminal block
DIN-rail kit, already mounted
Inside the CD you will find
 User´s Manual
 Installation Guide
 Device View Utility
Tab. 1 Inside the package
Note: Please notify your sales representative if any of the above items is missing or damaged in any form upon
delivery. If your sales representative is unable to satisfy your enquiries, please contact us directly.
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2.2. Front & Power Panels
The Front (Fig 2) and Power panels (Fig 3) are as follow:
Fig. 2 DM500 Front panel
Fig. 3 DM500 Power panel
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The rear panel (where you can mount the device on a rail or to the wall), looks as in Fig. 4, a
simple mounting instruction is given there, too. For more information on hardware installation,
please refer to the product’s installation guide.
Fig. 4 DM 500 Rear panel and mounting instruction
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2.3. First Time Installation
Before installing the device, please adhere to all safety procedures described below, Welotec
will not be held liable for any damages to property or personal injuries resulting from the
installation or overall use of the device. Do not attempt to manipulate the product in any
way if unsure of the steps described here, in such cases please contact your dealer
immediately.

Prepare the necessary cables, DC adapter, power cord, LAN cable, etc.: do not connect
the unit yet.

Install both antennas to the SMA (f) connectors.

Proceed then to plug the power source to the unit, starting from the ground and then the
terminal block.

Place the device in the desired location and connect it to the LAN via an Ethernet cable
with a RJ45 connector.

Connect your computer to the LAN network. Default configurations will be addressed
later.
Note: remember to please consult your Hardware Installation Guide when attempting an installation. Also, please
follow all safe procedures when doing so.
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Industrial Wireless Access Point DM500
2.3.1.
10
Web Configuration Overview
DM500 series’ Web Configuration is designed into three different modes for ease of use to
suit customer needs. The Web Configuration appears as follows in Fig. 5:
Fig. 2 Web Configuration
On the left side, a menu-tree appears with all the modes and options available (Fig 6), while
on the right side of your screen the contents of each mode/option will be displayed in a
graphical state. Since each mode of operation is different, the content will differ, for more
information on each selection please refer to each option’s section throughout the manual.
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11
Fig. 3 Available options
Note: It is worth noting that as a first step to reach your device, you could use Device View © (the utility provided in
the CD); please refer to Sec. 3.1 for more details.
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In general, there will be three buttons which will be present at the end of almost each
configuration:
Button
Function
Saves the current configuration input on the
page only, the configuration itself will not be
applied to the device. We recommend users
to use this button before the configuration
process is completed and then press “Apply”
at the last step.
Save and apply the current configuration
input on the page. On some pages, the
device may need to reboot, we strongly
advice to save the device’s settings before
reboot.
Cancel the current configuration input and
shows the original settings.
Tab. 2 Buttons
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2.4. Factory Default Settings
Upon arrival, the device will be set as Regular AP, the rest of the settings are as follow:
Mode
Radio On
SSID
SSID Broadcast
Wireless Mode
Channel
Bandwidth
Secondary Channel
Transmit Rate
WDS Mode
Security Mode
Encryption Type
Root AP
WPS
WPS BUTTON
PIN Number
Regular AP
WDS Bridge
Wireless
Basic Settings
AP1 Enabled
DM500
Enabled
802.11b/g/n
1 (Automatic Channel Selection
enabled)
40 MHz
None (disabled)
Best (auto)
Root AP
Security Settings
Disabled
N.A.
WDS Settings
None
N.A.
Blank
WPS Settings
Disabled
AP Client
N.A.
N.A.
N.A.
N.A.
Tab. 3 Wireless and security setting
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Advanced Settings
Regulatory Domain
Tx Power
Short GI
WMM
WPA Group Rekey Interval
STP
Fast Handoff
Fast Roaming
Fast Roaming Threshold
EU
100%
Enabled
Enabled
600
Disabled
Disabled
Disabled
50%
N.A.
Mobile Station
SSID
BSSID (MAC Address)
Topology
Band mode
TxRate
Channel
Bandwidth
Secondary Channel
Authentication Mode
Encryption Type
WEP Key
WPA-PSK/WPA2-PSK
(Passphrase)
WPA-PSK/WPA2-PSK
RADIUS)
User
Password
DM500
Disabled
Infrastructure
Auto
N.A.
OPEN
None
(with
Disabled
Wireless Scheduler
Status
Disabled
Tab. 4 Advances settings
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DHCP
IP Address
Subnet Mask
Default Gateway
Preferred DNS
Alternate DNS
System Contact
System Location
Read Community
Write Community
SNMP Trap Server
15
Network Settings
Manual (box unchecked)
192.168.2.2
255.255.255.0
192.168.2.1
192.168.2.1
None
SNMP Settings
Contact
Location
None (SNMP disabled)
0.0.0.0
Email Settings
Sender
Receiver
SMTP Server
Authentication
User name
Password
DHCP
From IP Address
To IP Address
Netmask
Lease Time (minutes)
Static Connection
Blank
Disabled
DHCP Server
Disabled (unchecked)
None (if above unchecked)
Tab. 5 Network-, SNMP- and Email Settings
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Firewall and Filtering (a total of 64 entries available per option)
Wired MAC Filtering
Disabled MAC Filtering
 Access Control List
None (if above checked)
Wireless MAC Filtering
Disabled
 Access Control List
None (if above checked)
Ether Type Filtering
Disabled
 Ethernet Type Filtering List
None (if above checked)
IP Filtering
Disabled
 IP Filtering List
None (if above checked)
Management List
Disabled
System Setup
Username
adm
Old Password
New Password
123456
Repeat new password
Web Mode
HTTP
Device name
Device’s MAC Address
NTP
Unchecked
NTP Server
None (if above unchecked)
Time Zone
Manual Time Settings
2006/1/1 00:00
Alert Event
All unchecked
Firmware Upgrade
Path directed to Desktop
Backup & Restore
Configuration
System Status
System Information
Site Monitor
Wireless client table
Default table according to connection
Traffic Log & Statistics
Refresh Rate
No refresh
DHCP Status
No DHCP entry
Ping
Blank
16
N.A.
N.A.
Tab. 6 Firewall- and System Setup
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17
3. Web Console Configuration
3.1. Administrator Login
As soon as the device is connected to the web, the user can proceed to navigate through its
configuration using Device View ©, (utility that comes with the CD); as noted in Fig. 7 below,
important information such as the IP, MAC address, etc is going to be displayed.
Fig. 4 Device View
If your device’s name is double-clicked, a window (Fig. 8) will pop-out that will prompt you to
enter username and password (see Factory Default Settings for more information), proceed
then to click “OK”.
Fig. 8 Security Window
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The settings can then be accessed (as in
18
Fehler! Verweisquelle konnte nicht gefunden
werden. 9), by introducing first the username and password; as mentioned before, it will be
in Regular AP by default.
Fig. 5 Overview
3.2. Overview Information
DM500 is an Industrial Wireless solution for applications in harsh environments. The DM500
is tough enough, expected to operate at temperatures ranging from -10°C~60°C. The ease of
installation makes it attractive as it uses a DIN-Rail for fixing itself to virtually any surface in
your workplace. Reliability is a key factor when wireless solutions are needed, that is why
DM500´s size makes it ideal for small places when considering its positioning without
affecting real-time, control and overall performance.
3.2.1.
Secure Wireless Network
DM500 is designed to provide you security support when building a network. We recommend
using WPA2-PSK with AES as a minimum when securing your network; also remember to set
it at 802.11n for a full speed performance. For more information on this and more please read
Chap 3, Sec. 3.3.2.
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3.3. Wireless Settings
Wireless Settings include the basic Wi-Fi settings and wireless security. There are however,
some concepts to be mentioned before going one step forward on the wireless settings. As
you know, 802.11 is a set of standards for WLAN communication at the 2.4, 3.6 and 5 GHz
frequencies. The DM500 works only with the 2.4 and 5 GHz range. It follows the below
mentioned standards:

802.11a; (also known as 802.11a-1999), is a 54 Mbps (around 20 Mbps net throughput),
5 GHz signaling standard; since 2.4 GHz is used by a big number of different devices
interference here is less than in 802.11b. However, signals will not penetrate as much as
802.11b because they are absorbed more readily by walls and other solid objects (when
on a single path), but not when use in multi-path environments i.e., indoors, office.

802.11b; the first of the standards to be created; an 11 Mbps (4~5 Mbps net
throughput), 2.4 GHz signaling standard. Although it performs much better than
traditional dial-up networking, its performance is still significantly less than 802.11a and
other, newer standards.

802.11g; very similar to 802.11b, the main difference being that it is done in a maximum
raw data rate of 54 Mbps (20 Mbps net throughput), at the same 2.4 GHz bandwidth

802.11n; Improves the amount of bandwidth utilized by using multiple wireless signals
and antennas (MIMO technology) instead of one. Link speed on a 2x2 solution is 300
Mbps on our models.
3.3.1.
Wizard
The DM500 comes with a Quick Setup Wizard that will guide you through most of the
common settings. You might find it suffice to follow the wizard and setup the Access Point
without the need to proceed with this manual, (again, this is only applicable for the most basic
setups in each mode).
3.3.2.
Basic Settings
To set up a wireless network, several parameters are needed. Link Speed can be optimized
up to 300 Mbps by choosing 802.11 b/g/n or 802.11a/n; again, remember that 2.4 GHz
frequency is easily interfered by other devices that operate in the same region (namely
Bluetooth, Zigbee, Microwave, etc.) so it is better to choose the 802.11a/n which operates in
the 5 GHz when your network allows it. Below there is a table which shows Basic Settings
for the device, Table 7.
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Caption
Default
Radio On (AP1)
Enabled
Radio On (AP2)
Disabled
Radio On (AP3)
Disabled
SSID
DM500
SSID Broadcast
Enabled
Wireless Mode
802.11b/g
Channel
1 (Automatic Channel Selection box selected)
Bandwidth
40 MHz
Secondary Channel
5
Transmit Rate
Best (auto)
Tab. 7 Basic settings
The basic settings are explained in detail below:

Radio On: DM500 supports up to three multiple SSIDs (AP1, AP2, and AP3). AP1 must
be enabled before you can proceed to AP2 and AP3. AP2 and AP3’s settings are only
shown when they are enabled. When all three APs are disabled, wireless radio would
turn off completely.

SSID: specifies the device’s wireless network name that other wireless devices should
use in order to associate with this AP. Each AP (AP1, AP2, and AP3) can have their own
SSID for better wireless network management. You can use the “Scan network”
function to learn about the different SSIDs and channel numbers in the device’s
surroundings, please be patient as this process might take as long as 10 seconds as
shown below. Once it has finished scanning, names and basic properties of neighboring
networks will be shown as in Fig 9. When no neighbors have been found the answer is
as follows Fig 10. Keep in mind that the SSID should be unique unless wireless roaming
is required.
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Fig. 6 Result of scanning
Fig. 7 Result of scanning
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
22
SSID Broadcast: Allows any wireless client to search for this access point presence, it
is enabled by default. When the SSID Broadcast is disabled, wireless clients need to
manually input the SSID in their wireless client configuration, increasing network security
to prevent an access from unsolicited clients.

Wireless Mode: The modes are separated into two parts by different colors. The modes
colored in green denotes the modes that runs on the 2.4 GHz frequency and the modes
colored in red denotes the modes that runs on the 5 GHz frequency. Please note that
the 2.4 GHz frequency is very crowded and usually does not reflect the real
performance of the device, please consider using the 5 GHz frequency when possible.

Channel: Select “Automatic Channel Select” to let the device automatically assign the
best available channel number. When setting the channels manually, bear in mind that
channels 1, 6, and 11 are the non-overlapping channels for 2.4 GHz
Fehler!
Verweisquelle konnte nicht gefunden werden.. Again, you can use “Scan
network” to see which channels are already occupied.

Bandwidth: When 40 MHz is used, DM500 will double the channel width to 40 MHz as
compared to the standard 20 MHz to transmit its data; this is not recommended for
802.11b/g/n since it will leave only one non-overlapping channel for other APs. HT40 (40
MHz), is recommended for 802.11a/n because it offers a wider frequency range and it is
easier for DM500 to find empty channels as well.
Fig. 8 Non-Overlapping Channels for 2.4 GHz WLAN
Fig. 9 Non-Overlapping Channels for 5 GHz WLAN
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23
Fig. 10 Basic Settings

Secondary Channel: the second channel that DM500 uses when the 40 MHz bandwidth
is enabled, a better description is given on Table 8 and Table 9.
2.4 GHz
channel
1
2
3
4
5
6
7
8
9
10
11
12
13
Primary
20 MHz
Blocks
1-3
1-4
1-5
2-6
3-7
4-8
5-9
6-10
7-11
8-12
9-13
10-13
11-13
40MHz upper
ch. Center Block
s
5
3
1-7
6
4
1-8
7
5
1-9
8
6
2-10
9
7
3-11
10
8
4-12
11
9
5-13
12
10
6-13
13
11
7-13
Not Available
nd
2
nd
2
40 MHz lower
ch.
Center Block
Not Available
1
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
10
11
1-7
1-8
1-9
2-10
3-11
4-12
5-13
6-13
7-13
Tab. 8 Settings for Secondary Channel for 2.4 GHz
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5 GHz Primary channel
36
40
44
48
60
64
149
153
157
161
40MHz upper
nd
2 channel
40
48
64
153
161
-
24
40 MHz lower
nd
2 channel
36
44
60
149
157
Tab. 9 Settings for Secondary Channel for 5 GHz

Transmit Rate: a maximum data transmission of 300 Mbps is supported, however, data
transmission could be reduced in exchange for a more stable connection (refer to Table
10). Each AP (AP1, AP2 and AP3) can have their own transmission rate to prevent
congestion on the network.
MCS
index
Spatial
streams
Modulation
type
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
Data rate (Mbit/sec)
200 MHz channel
40 MHz channel
800 ns GI 400 ns GI 800 ns GI
400
ns
GI
6.50
7.20
13.50
15.00
13.00
14.40
27.00
30.00
19.50
21.70
40.50
45.00
26.00
28.90
54.00
60.00
39.00
43.30
81.00
90.00
52.00
57.80
108.00
120.00
58.50
65.00
121.50
135.00
65.00
72.20
135.00
150.00
13.00
14.40
27.00
30.00
26.00
28.90
54.00
60.00
39.00
43.30
81.00
90.00
52.00
57.80
108.00
120.00
78.00
86.70
162.00
180.00
104.00
115.60
216.00
240.00
117.00
130.00
243.00
270.00
130.00
144.40
270.00
300.00
Tab. 10 Transmit Rate
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3.3.3.
25
Security Settings
These settings provide an overall network security (according to the user’s needs), by default
Wireless Security is Disabled,
Fehler! Verweisquelle konnte nicht gefunden werden. .
Each AP (SSID) can have its own wireless security. For example, you can create a temporary
SSID with OPEN security for guest access. Note that WEP will not be available if you have
enabled more than one AP (SSID).
Fig. 11 Security Settings for AP1
A number of Security Settings are available for you:

WEP 64/128-bit Hex: stands for Wired Equivalent Privacy. Which is a moderately weak
security algorithm, and although it implies security in a wired connection, it is weaker
than WPA protocols. It is not recommended unless a really large network is being
administered. Up to 4 different hexadecimal or ASCII keys can be entered in this
section, Fig.15.
Fig. 12 Security Settings for AP1
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
26
WPA-PSK: stands for Wi-Fi Protected Access. It uses a passphrase generated and
entered by the user; this passphrase can be between 8 and 63 characters long. We
strongly recommend not to take a passphrase already in use within the network (nor use
a variation of personal information publicly available), since this can compromise
network’s security, Fig 16.
Fig. 13 Security Settings for AP1

WPA2-PSK: stands for Wi-Fi Protected Access II. This is a highly recommended setting
for the average user. You can select the encryption mode tone of the following: TKIP
(Temporal Key Integrity Protocol), or AES (Advanced Encryption Standard). Less prone
to be hacked than the above one, Figure 17.
Fig. 14 Security Settings for AP1
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
27
WPA2 (RADIUS): Designed for enterprise networks, it requires a RADIUS (Remote
Authentication Dial In User Service), authentication server. Although possessing a more
complicated setup, security is optimized since passwords are not transmitted between
the NAS (Network Authentication Server) and RADIUS, Fig. 18.
Fig. 15 Security Settings for AP1

Disabled: No security settings are being used in the current device (comes as factory
default),
Fehler! Verweisquelle konnte nicht gefunden werden.. This option is
highly discouraged since authentication as well as encryption is not performed in
this mode.
Fig. 16 Security Settings for AP1
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3.3.4.
28
WPS Settings
This option is available only when DM500 is running in the Regular AP mode. WPS stands
for Wi-Fi Protected Setup, PBC stands for Push Button Configuration. WPS needs to be
enabled before you can Start WPS PBC. To use this feature, first trigger the WPS process in
DM500 by pressing the WPS PBC button and click on the WPS PBC button on SW550X’s UI
or other WPS methods designated by a WPS compatible device, Fig 20. After the Start WPS
PBC button is pressed, WPS would be triggered and the DM500 will wait for 120 seconds for
a WPS compatible device to associate with it automatically.
Fig. 17 WPS Settings
Note that since DM500 only supports the “Configured” mode of WPS, the following wireless
settings need to set manually before the device would enter the WPS state:
Basic Settings
WDS Settings
Operation Mode
SSID
Wireless Mode
Authentication
Encryption
Passphrase
Regular AP
User Define
User Define
WPA-PSK or WPA2-PSK
TKIP or AES
User Define
Tab. 11 Wireless Settings required for WPS
Note: Again, TKIP is not covered in the 802.11n standard and the wireless rate would be limited to 54 Mbps.
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3.3.5.
29
WDS Settings
This option is available only when DM500 is running in the WDS Bridge mode and DM500 is
configured as a WDS Hybrid or a WDS Station, three different encryption types are
available: WEP, TKIP and AES. The configuration is relatively simple and straightforward;
enter the WLAN MAC of the adjacent DM500, the adjacent DM500 could be a Root AP or a
Hybrid, Fig. 21.
Fig. 18 WDS Settings
Note that the Encryption Type here would also be used by the wireless clients connecting to
DM500 if you are a WDS Root or WDS Hybrid. When TKIP or CCMP (AES) is selected,
DM500 would use WPA2-PSK authentication for the connecting wireless clients.
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3.3.6.
30
Advanced Settings
Provide details on wireless parameters for performance tuning. Changes in this section may
affect overall performance, so caution is recommended, if you are not clear of what you are
doing please refrain from altering them.
Fig. 19 Advanced Settings

Radio On can turn off the wireless signal of DM500 completely. This option only shows
in the AP Client mode. To turn off the wireless signal completely under Regular AP
mode and WDS Bridge mode, disable all APs in the Basic Settings.

TX Power is DM500´s Transmission Power. The transmission power can be reduced to
prevent wireless interference to other wireless networks.

Short GI is recommended to leave it as enabled to maximize the throughput.

WMM or Wireless Multimedia Extension, which is recommended to leave as enabled in
order to comply with 802.11n standards and achieve link speeds higher than 54 Mbps.

WPA Group ReKey Interval, WPA automatically changes secret keys after certain
period of time, which all devices on the wireless network share. Constantly rekeying the
group key protects your network against intrusion.
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
31
STP or Spanning Tree Protocol, please enable this option if STP is enabled in your
network to prevent network loops. When disabled, DM500 will not forward STP BPDUs.
o
Forward Delay time in which the interface takes to converge from blocking stage
to forwarding state. This option only shows in the AP Client mode.

Maximum Signal Distance is used to determine how fast a wireless signal should be
timed out. If DM500 is equipped with an outdoor antenna to reach further distances,
increase this value accordingly.

Fast Handoff is a proprietary protocol to speed up roaming between DM500´s. Enable
to allow DM500 to share its neighboring DM500 information to SW550X to further
reduce its roaming time.

Wireless Isolation creates a firewall between wireless clients connected to this AP. The
isolation can be enabled to prevent data traffic flowing between clients to increase client
security and to prevent unnecessary traffic between clients.
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3.3.7.
32
Wireless Scheduler Settings
This function allows you to setup a wireless schedule and disables SSIDs according to the
time in a day when necessary. You can have up to 10 rules.
Fig. 20 Schedular Settings

Number: select from 1 to 10.

Name: give this rule a name, so it is easier to remember.

Status: enable or disable this rule.

SSID: select the SSID which this rule applies to.

Days(s): select the days of the week when this rule should be effective.

Time (hour:minute): select the time of the day when this rule should be
effective. If you want this rule to run for the whole day, set 00:00 – 00:00.
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Scheduler Usage Tutorial:
Let’s say there are two sites that are covered by the AP and they have different working
hours. The office would normally work from 8am to 6pm and the production line should run 24
hours. Both sites will shut down on weekends Fig 24.
Steps

Enable AP2 in the Wireless Basic Setings. Set AP1 to use SSID DM_Production and
AP2 to use SSID DM_Office. Configure other wireless settings when necessary.

Go to Wireless Scheduler Settings and select Rule 1. Give this rule a name (Production
Line), change its status to Enabled, select the SSID (DM_Production), check the days
(Monday ~ Friday), and set 00:00 – 00:00 for Time. In case you have done something
wrong and would like to discard the changes, press the Cancel button. Click the
Add/Modify button to add this rule or overwrite an existing rule.

Select Rule 2. Give this rule a name (Office), change its status to Enabled, select the
SSID (DM_Office), check the days (Monday ~ Friday), and set the Time range to 8:0018:00. Click the Add/Modify button to add this rule or overwrite an existing rule.

In case there are other rules present in the table, you can select that rule and press the
Remove button so it would clear.

Click the Apply button to make the new scheduler rules effective.
Note that under this scenario, the wireless function (radio) would be turned off completely on
Saturdays and Sundays.
Fig. 21 Example for Scheduler Settings
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3.4. Network Settings
DM500 will get an IP address from a DHCP server connected on the LAN interface, just
check “Obtain an IP Address Automatically” for it. Besides you can just use your own IPConfiguration if you uncheck “Obtain IP Address Automatically”.
Fig. 22 LAN & WLAN Interfaces

Gratuitous ARP enables to periodically send out an ARP response automatically to
announce that DM500 is in the network. The frequency in minutes could be set in the
nearby box
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3.5. SNMP Settings
The SNMP is used by network management software to monitor devices in a network to
retrieve network status information and to configure network parameters. The SNMP Settings
shows the configuration of this device so it can be viewed or edited by third-party SNMP
software as shown below, Fehler! Verweisquelle konnte nicht gefunden werden..
Fig. 23 SNMP Settings
DM500 provides two SNMP fields, which are “System Contact”, usually used to specify the
device’s contact information in case of emergency; and “System Location”, usually used to
specify the device location.
If you wish to make the device information available for public viewing/editing, Enable the
SNMP function. Fill in the passphrase for the “Read Community”, the group that is allowed
to read the device information and fill in the passphrase for the “Write Community”, the
group that is allowed to read/modify the device information. By default DM500 comes in
public for Read Community and private for Write Community. In case the device raises an
alert due to any unexpected incident, a message will be dispatched to a SNMP trap server.
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Specify the IP Address of the SNMP Trap Server designed to collect all alert messages; any
changes made will take effect after the device is restarted.
3.6. Email Settings
In case the device raises an alert and/or warning message, it will send an email to the
administrator’s mailbox. Email Settings allows you to set up the device to be able to send an
email. To set up the email sending, you need to put a “Sender” email address which will be
the “From” on the email. Then, you fill in “Receiver” email address to which the email is
sent. You can send the email to several recipients using Semicolon (;) to separate each email
address. Next step is to set the Email Server. First, you fill in the IP address of a Mail
Server in your local network. If the Mail Server needs a user authentication, you need to
enable “SMTP server authentication required”, and fill in Username and Password.
Please contact your network administrator for Mail Server IP address and the Username
and Password,
Fehler! Verweisquelle konnte nicht gefunden werden.. You can click
on “Send Test Mail” to verify your mail settings.
Fig. 24 E-mail Settings
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3.7. DHCP Server
If there is no workstation or server to act as the DHCP Server and assign IP addresses to
each client automatically, DM500 can serve as the DHCP Server to statically or dynamically
assign an IP address to any network device. To enable such functionality, check Enabled to
enable the DHCP Server in DM500; proceed then to fill in the IP Address Range including
the “From IP Address” and “To IP Address”, fill in the IP address’ Netmask (or Subnet
Mask). “Lease Time” is the duration in minutes that an assigned IP Address will belong to
that device; once expired, the IP address will be recycled. A maximum of 21600 minutes is set
by default.
You can also assign a static IP address to a network device, meaning that the network device
would always get the same Static IP Address from the DHCP server. To statically assign an IP
address, check on the small box in front of each line, and then fill in the Host Name and/or
the MAC Address that you want to assign a static IP Address to. When DHCP is enabled, up
to 32 different static IP/MAC can be set, Fig. 28.
Fig. 25 DHCP Server
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For a look at the current DHCP client table, just click where it says “DHCP Client List”, if no
clients are present there would be a message specifying so Fig. 29.
Fig. 26 DHCP Status
3.8. Firewall & Filtering
The following section deals with configuration for the network’s firewall as well as its packet
filtering. Available criteria for packet filtering are based on MAC address (Wired or Wireless),
Ethernet packet, and IP address. These filtering methods provide security, preventing
unauthorized or malicious packets an entrance to your network.
Data packets will be filtered (classified) as either “allowed packets” or “denied packets”;
the “allowed packets” mode is more commonly known as the “whitelist” and the “denied
packets” mode is known as the blacklist. We highly encourage you to be extremely careful
on this section as data that doesn’t fit into any of those criteria will be discarded with the
potential outcome of letting the DM500 as inaccessible if not configured properly. If the latter
happens, you will need to reset the device back to its default by any of the methods described
on Sec 3.12.
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3.8.1.
40
Wired MAC Filtering
When connected to the LAN/Ethernet interface, filtering can be done using this option. The
setting is simple, intuitive and straight-forward; just choose whether to Allow or Deny
packets and proceed to fill in the blanks with the corresponding MAC addresses. Up to 64
different MAC addresses can be set for allowing as well as for denying packets, Fig. 30; as a
default, Wired MAC Filtering is disabled. For changes to take effect, press Apply, for saving
those changes just press Save Settings.
Fig. 27 Wired MAC-Filtering
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3.8.2.
41
Wireless MAC Filtering
Packet filtering in a Wireless environment can be done in an analogous way as the Wired
MAC Filtering. In the same way, connection is ensured by allowing or denying packets
according to their respective MAC addresses; again, a maximum of 64 different MAC
addresses are available as an option.
Fig. 28 Wireless MAC-Filtering
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42
Ethernet Type Filtering
Ethernet Type Filtering is done according to the packets’ Ethernet type, also known as
Layer 3 filtering. As in the two previous sections, there is a maximum of 64 entries for packets’
specification. Enabling is simple (packets are set as disabled by default, Fig. 31), checking
the packet’s Ethertype box (located to the left of it, first column). Ethertype numbering
usually starts with 0x, in which  corresponds to a hexadecimal number, e.g.,
0xF0F0 which is to filter NETBUI type messages or 0x8035 for RARP type messages; Fig.
31.
Fig. 29 Ethernet Type Filtering
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43
IP Filtering
IP Filtering, as its name implies, is for filtering on the IP protocol, also known as Layer 4
filtering. Continuing its simple design, IP address is added on the Source and Destination
Address fields. Each filter only provides a one-way filtering, to create a 2-way filtering you
need to add another entry that has the source and destination address reversed. The filters
should be active once the checkbox in the first column is checked. A total of 64 different
entries can be added to the list, Fig. 32.
Fig. 30 IP Filtering
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3.8.5.
44
Management List
The Management List is used to filter the MAC address that has access to the Web
management interface. When enabled, only the MAC addresses entered in the Access
Control List below has access to the Web UI.
Fig. 31 Management List
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3.9. System Log
3.9.1.
Syslog
The Syslog function is turned on by default and cannot be turned off. It is used to log system
events and report to an external Syslog server if necessary.
Fig. 32 System Log Settings

Enable Log Event to Flash: this would write log events to the local flash, otherwise the
logs would be cleared when the device restarts because they are stored in the RAM by
default.

Log Level: 2 (we only allow logging at this level).

Enable Syslog Server: enabling this option would allow you to send Syslog events to a
remote Syslog server.

Syslog Server IP: Please specify the remote Syslog Server IP.

Syslog Server Service Port: Please specify the remote Syslog Server Port.
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3.9.2.
46
Event Log
Display the current event log stored in the device.
Fig. 33 Event Log
Fig. 3. 1
Click on “Last Page” to go to the last page. Click on “Next Page” to go to the next page. Click
on “Show All Event” to show all events in one page. Click on “Clear All Event” to clear the
events stored in the device. Click on “Save To File” to save all the events to a file locally.
Click on “Last Page” to go to the last page. Click on “Next Page” to go to the next page. Click
on “Show All Event” to show all events in one page. Click on “Clear All Event” to clear the
events stored in the device. Click on “Save To File” to save all the events to a file locally.
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3.10. System Setup
The following section describes some critical settings for the DM500; take care when
changing the values here as they will greatly influence your network performance.
3.10.1. Admin Settings
The DM500 allows User and password management, the user’s default is as “adm” and the
password will be “123456” as default. The Device name entry can be changed as well; to
set/change their value just follows the steps filling in the corresponding blanks and choose
Apply in the end, Fig. 37.
There are two ways to access DM500´s Web UI. One is Hypertext Transfer Protocol (HTTP)
and the other is Hypertext Transfer Protocol Secure (HTTPS). For enhanced security, it is
recommended to use the encrypted HTTPS protocol. Note that HTTP uses the 80 port while
HTTPS uses the 443 port.
Fig. 34 Admin Settings
If the Web mode is switched to „HTTPS“ it is important to fill in the old password and an new
one. This new one can be the same as the old one but it needs to bei filled in. Otherwise the
DM500 is no more accessabel via the web-interface.
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3.10.2. Date/Time Settings
Date and time can be set manually, or using Network Time Protocol (NTP) to automatically
synchronizes with a Time Server. For auto-synching check the box below NTP Server
Settings “Obtain date/time automatically” proceeding then to fill the IP address or host
name for it if a hostname is entered, the DNS server must be configured properly; a Time
Zone can be selected as well.
Fig. 35 Date and Time Settings
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3.10.3. Alert Event
There are five events that will trigger the alarm; these alerts are useful for security control or
security monitoring, Fig. 39.

Cold Start, when there is a power interruption.

Warm Start, when the device resets.

Authentication Failure, when an incorrect username or password is entered.

IP Address Changed, when the device’s IP is changed.

Password Changed, when the administrator password is changed.
Any of the five events would trigger an alert. When enabled, an email alert would be sent to
the designated address in the E-Mail Settings. A Trap alert would be sent to the designated
Trap server in the SNMP Settings.
See “Email Settings” section, to specify the email addresses to which the alert message is
sent. See “SNMP Settings” section to specify a SNMP trap server.
Fig. 36 Alert Events
3.10.4. Firmware Upgrade
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Updated firmware is provided by our company from time to time (for more information visit our
News & Events webpage), to fix bugs and optimize performance. It is very important that the
device must NOT be turned off or powered off during the firmware upgrading, (please
be patient as this whole process might take up to 7 minutes). Before upgrading the
firmware, please make sure that the device has a reliable power source that will not be
powered off or restarted during the upgrading process. To upgrade a new firmware, once
downloaded, copy the new firmware file to your computer, and then click “Browse” to find the
new firmware file, then click “Upload”. The program will show the upload status, please wait
until the uploading process is finished (the amount of time varies depending on the equipment
used); the device will then proceed to restart itself (Fehler!
Verweisquelle konnte nicht
gefunden werden.).
Fig. 37 Firmware Upgrade
Note: if the firmware upgrade process fails and the device becomes unreachable, follow the TFTP Recovery
procedure on the Appendix.
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3.10.5. Backup & Restore Configuration
Once all the configurations are set and the device is working properly, you may want to back
up your configuration. Backup can be used when the new firmware is uploaded and it is reset
to a factory default settings, it is done to prevent accidental loading of incompatible old
settings. The backup file could also be used to efficiently deploy multiple DM500´s of similar
settings by uploading the settings to the devices.
To back up your configuration, click “Backup”, and a pop-up dialog is prompted for saving
the backup file on your computer. It is important NOT to modify the saved configuration
file by any editor. Any modification to the file may corrupt the file, and it may not be
used for restore. Please contact our authorized distributors for more information on this
subject.
To restore the configuration backup, click “Browse” to locate the backup file, and then click
“Upload” to upload the configuration backup file to the device. Once, the backup file is
successfully uploaded; the device will restart, the time needed for this process may vary on
the equipment used, Fig. 2.
Fig. 2
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3.11. System Status
Overall DM500’s info as well as network (and very possibly neighbors) information will be
available when browsing this section.
3.11.1. System Information
This section illustrates DM500’s overall information,
Fehler! Verweisquelle konnte nicht
gefunden werden..
Fig. 38 System Information
3.11.2. Site Monitor
Site Monitor allows users to view the other wireless networks in the neighborhood, it also
provides information on other access points such as SSID, Channel, the RSSI (Received
Signal Strength Indicator), Security and Link Speed of other access points. It can be helpful
when setting SSID and Channel for this device to avoid SSID name and Channel conflict and
prevent unexpected errors or degraded performance.
Please keep in mind that it will take some time (approximately 10 seconds), for this option to
gather information of the surrounding wireless networks, Fig. 42 ~Fig. 43.
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Fig. 39 Site Monitor – Waiting
Fig. 40 Site Monitor
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3.11.3. Wireless Client Table
On this table you may be able to see all the Wireless and WDS device connected to this
DM500, Fig. 44.
Fig. 41 Wireless Client Table
3.11.4. Traffic Log & Statistics
Traffic Log & Statistics shows wireless network and status information; “Refresh Rate” can be
changed to automatically reload/update the page, the default being a “no refresh” option, but
it can be done manually by clicking on Refresh. Be careful when setting this value because it
will increase CPU load on the device, Fig. 45.
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Fig. 42 Traffic Log and Statistics
3.11.5. DHCP Status
DM500 could distribute IP addresses using the DHCP protocol; a list of clients currently
receiving an IP can be accessed by choosing the DHCP Status option. DHCP Client’s MAC
Address as well as its IP addresses, Host Name, and Lease Time will be shown in this list,
Fig. 46.
Fig. 43 DHCP Status
3.11.6. Ping
Use the Ping function to determine whether DM500 can reach the gateway or other devices in
the network or not. This process takes around 20 seconds. Fig. 47 represents a successful
ping while Fig. 3. 3 means that the connecting device is not reachable.
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Fig. 44 Successful Ping
Fig. 45 Device not reachable
3.12. Reboot and Restore Default Settings
To manually reboot the device, you may click on “Reboot”, after which the device will restart. If
a factory default setting is needed, tick the “Reset” checkbox, and then click on Reboot, Fig.
49.
Also, you could use the button located on the Front panel, close to the ANT2; it is
conveniently labeled as Reset. Just insert the tip of a paper clip and hold it long enough until
the device produce a long beep, release the button and wait for the device to restart.
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Fig. 46 Reboot & Restore Default
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4. Operation Modes
4.1. Regular AP Mode
Regular AP mode’s welcome screen is as shown below, Fig. 50.
Fig. 47 Operation Mode
Regular AP mode which is the factory default and the first option on the screen, allows
wireless clients to connect to a network, relaying data between the wired and wireless devices
in the network. It allows multiple wireless clients to access the network through DM500´s
Ethernet interface (physical/wired connection). Its corresponding complete menu-tree is as
follows in Fig. 51.
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Fig. 48 Menu tree for regular AP mode
Steps for a quick setting for the DM500 as a Regular AP are:

On operation mode choose “Regular AP” (if the device is not in factory default).

Go to Wireless  Basic Settings; here you can change the Network Name (SSID) to
your preferred name, you might want to first click on “Scan network” to find whether
there are neighbors with a name matching yours (this is done for preventing any conflict
over networks).

At this point you may decide to change other settings such as the Wireless Mode,
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whether to have Automatic Channel Selection, the Bandwidth, Transmission Rate
and the Secondary Channel (only available when on 802.11a/n and 802.11b/g/n
modes).

Next go to Security Settings, and on Security Mode choose which security protocol
will be used in the network. We strongly recommend not leaving this section as disabled.

On LAN & WLAN Interfaces, enter the IP Address, Subnet Mask, Default Gateway,
and DNS servers used (if any), according to your network configuration.

Click “Apply”, and wait for the changes to take effect. You may also want to Save
Settings afterwards just in case you need these configurations in the future.
4.2. WDS Bridge Mode
On this mode multiple DM500 can bridge together to create a Wireless Distribution System.
The following details the WDS structure; there are three roles that DM500 can play in a WDS
network:

Root AP (or Root)

Hybrid (or Parent)

Station (or Child)
Please keep in mind that there should be one and only one Root AP in the WDS network.
Hybrids can connect to a Root AP or connect with each other and Stations can connect with
either a Root AP or a Hybrid. Connecting multiple WDS nodes to a Root AP or a Hybrid is
allowed as well. Please take a look at the following tree structure,
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Fig. 49 WDS tree structure
Note: It is possible to setup a Hybrid (Parent) without a Station (Child). The difference between a Hybrid and a
Station is that the Station does not allow wireless clients to associate to it.
For DM500 quick steps to work as in WDS Mode, the procedure is as follows:

On operation mode choose “WDS Bridge”.

Go to Wireless → Basic Settings; on WDS Mode you can choose whether to use the
DM500 as a Root AP, Hybrid, or Station. Also as before, you can change the Network
Name (SSID) to your preferred name; you might want to first click on “Scan network”
to find whether there are neighbors with a name matching yours (this is done for
preventing any conflict over networks). From here three different configurations are
therefore possible:

When on Root mode
o
SSID Broadcast can be disabled here for an additional level of security.
o
On Wireless Mode, we recommend using 802.11 a/n since it is not as crowded
as 802.11 b/g/n; however this is only possible if it is supported by your wireless
client. Channel and transmission rate can be chosen automatically by the
DM500, however feel free to change them to the settings that work for you.
o
On WDS Settings → Encryption Type, do not leave this option as NONE, nonexistent encryption will result in an easy target for undesired access to your
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network.
o
On Root AP, the MAC address is to be left empty; again the Local Area network
fields should be entered with their corresponding values for the network being
configured.
o

Save and apply the settings for them to take effect.
When on Hybrid mode
o
Please remember that the SSID here should be the same as the Root AP. This
also means roaming is possible between APs.
o
On WDS Settings → Root AP, the MAC address entered should be the
Root/Hybrid’s (Parent’s) MAC address that is directly above this Hybrid AP. It
might not be the Root AP’s MAC address if the WDS setup has a multilayer
architecture.
o

Save and apply the settings for them to take effect.
When on Station mode
o
SSID is not present here as there is no AP function
o
On WDS Settings → Root AP, the MAC address entered should be the
Root/Hybrid’s (Parent’s) MAC address that is directly above the Station AP. It
might not be the Root AP’s MAC address if the WDS setup has a multi-layer.
o
Save and apply the settings for them to take effect.
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Fig. 50 Operation mode WDS Bridge
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Its corresponding menu-tree has slight differences compared to Regular AP, Fig. 54.
Fig. 51 Menu tree for WDS Bridge mode
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4.3. AP Client Mode
This mode allows your DM500 to connect to an Access Point. Ethernet clients connected to
DM500 over the Ethernet interface are allowed to access the network through DM500´s
wireless interface.
Fig. 52 Operation mode AP Client
Remember that your DM500 can function as both a Regular AP and as an AP Client (the
latter connected to the first one).
Supposing we already have the network physically installed, the steps for configuring your
DM500 as an AP Client are as follows.

On Operation Mode choose AP Client.

Click on “Save Settings”, go then to Mobile Station under the Wireless section and
click on “Scan network” to choose an SSID.

A window/tab will pop out; in that new window/tab, there will be the names of the
surrounding Wireless Networks. Choose the one that you already designated as your
Regular AP by selecting its corresponding SSID.

Click “Connect”, this will make you close the pop-out window/tab, and leave you with
the settings selected on the previous page.
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
Enter the WEP key or the WPA passphrase if necessary.

Scroll to the end of the page and press “Apply”, please wait for some time for the
changes to apply.

Then proceed to go to System Information, on the AP Client Information you can
confirm your DM500 is connected to the Network selected if the status field displays a
signal percentage instead of disconnected. Also, you may also double check the
wireless connection status inside the client table of the connected AP.
Fig. 53 System Information
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5. Applications
5.1. Basic Access Point Setup
Fig. 57 Basic Access Point Setup
For more information on how to configure your DM500 as an Access Point please refer to
Sec. 4.1.
Note: Wireless coverage is dependent on the environment.
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5.2. Basic WDS Setup
The following figure illustrates two sites with some considerable distance apart. Ethernet
cabling is impossible to the adjacent site. The adjacent site has both wireless clients and
ethernet clients. Note that if the Access Point function is not required at the adjacent site (no
wireless clients), WDS Hybrid can be changed to WDS Station.
Fig. 58 Basic WDS Setup
For more information on how to configure your DM500 for this topology, please refer to Sec.
4.2.
Note: Wireless coverage is dependent on the environment.
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5.3. Coverage Range Extender Setup
Extending from the above scenario, if the distance needs to be further extended, it is always
possible to add more DM500 (in WDS Hybrid mode) in between the existing one. The WDS
MAC address of the newly added DM500 (in WDS Hybrid mode) should be MAC address of
the DM500 that it is directly connecting to, not the MAC address of the DM500 in WDS Root
mode. Note that DM500 in WDS Station mode does not allow both wireless client and
DM500 (in WDS Hybrid mode) to connect in. Normally it should be the last DM500 in the
wireless topology if utilized.
Fig. 59 Coverage Range Extender Setup
For more information on how to configure your DM500 for this topology, please refer to Sec.
4.2.
Note: wireless coverage is dependent on the environment.
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5.4. AP Client Setup
If DM500 is being added to a wireless network where Access Points (AP1) from other
vendors already existed, DM500 could be set to AP Client mode to connect to that AP1 and
bridge the Ethernet clients to AP1. This setup is similar to Scenario #2, except that WDS is
not used. This is because WDS from different vendors might not be compatible.
Fig. 60 AP Client Setup
For more information on how to configure your DM500 for this topology, please refer to Sec.
4.3.
Note: Wireless coverage is dependent on the environment.
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6. Specifications
6.1. Hardware Specification
The device’s appearance is as follows, Fig. .
Fig. 61 DM500

Ethernet: IEEE 802.3 10 BASE-T, 802.3U 100BASE-TX, 802.3ab 1000 BASE-T
Power Requirements

Input Voltage: 9VDC-48VDC

Input Current: (9VDC) 0.65 A

Power Consumption: Approx. 5.85 W

Reverse Polarity Protection*: Yes

Connection: 3-pin Lockable, terminal block on top
Note*: We strongly advice against this practice.
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Physical Characteristics

Housing: IP50 protection, metal case.

Weight: 500 g

Dimensions: 47x110x90 mm

Installation: DIN-Rail, wall mount (optional kit)
Environmental Limits

Operating Temperature: -10°C~60°C (14°F~140°F)

Storage Temperature: -40°C~85°C (-40°F~185°F)

Ambient Relative Humidity: 5~95% RH, (non-condensing)
Wireless Specifications

PCI-e Module: Atheros AR9382

Tx/Rx: 2T2R MIMO (2x2 with MCS 0-15)

Wireless Standard Conformance: 802.11a, 802.11b, 802.11g, 802.11n

Antenna: 3/5 dBi Dual antenna design, SMA(R) Female connector
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Frequency Range
Country/Region
Unites States (FCC)
2.4 GHz
2412-2462 (20 MHz)
5 GHz
5180-5240, 5745-5825 (20
MHz)
5190-5230, 5755-5795(40MHz)
5180-5240(20MHz)
5190-5230(40MHz)
5320,5745-5825(20MHz)
5310-5310, 5755-5795(40MHz)
5745-5825(20MHz)
5755-5795(40MHz)
2422-2452 (40 MHz)
2412-2472 (20 MHz)
2422-2462 (40 MHz)
2412-2462 (20 MHz)
2422-2452 (40 MHz)
2412-2472 (20 MHz)
2422-2462 (40 MHz)
Europe (ETSI)
Taiwan (NCC)
China (CCC)
Tab. 12 Frequency Range
Data Rate
Standard
Data Rate
802.11a
6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11b
1, 2, 5.5 and 11 Mbps
802.11g
6, 9, 12, 18, 24, 36, 48, 54 Mbps
1Nss: 65Mbps @ 800GI, 72.2Mbps @ 400GI
(Max.)
20 MHz
2Nss: 130Mbps @ 800GI, 144.4Mbps @
400GI (Max.)
802.11n
1Nss: 135Mbps @ 800GI, 150Mbps @ 400GI
(Max.)
40 MHz
2Nss: 270Mbps @ 800GI, 300Mbps @
400GI (Max.)
Tab. 13 Data Rate
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Output Power
+15dBm @ 6, 9, 12, 18, 24Mbps
802.11a
+15dBm @ 36Mbps
+12dBm @54Mbps
+14dBm @ 48Mbps
802.11b
+14dBm
+17dBm @ 6, 9, 12,18, 24Mbps
+17dBm @ 36Mbps
802.11g
+16dBm @ 48Mbps
+16dBm @ 54Mbps
+16dBm @ MCS 0/8
+16dBm @ MCS 1/9
+16dBm @ MCS 2/10
+16dBm @ MCS 3/11
2.4GHz/HT20
+16dBm @ MCS 4/12
+16dBm @ MCS 5/13
+16dBm @ MCS 6/14
+15dBm @ MCS 7/15
802.11n
+15dBm @ MCS 0/8
+15dBm @ MCS 1/9
+15dBm @ MCS 2/10
+15dBm @ MCS 3/11
2.4GHz/HT40
+15dBm @ MCS 4/12
+15dBm @ MCS 5/13
+15dBm @ MCS 6/14
+14dBm @ MCS 7/15
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+15dBm @ MCS 0/8,
+15dBm @ MCS 1/9
+15dBm @ MCS 2/10
+15dBm @ MCS 3/11
5GHz/HT20
+15dBm @ MCS 4/12
+11 - 14dBm @ MCS 5/13
+9 - 12dBm @ MCS 6/14
+7 - 10dBm @ MCS 7/15
+14dBm @ MCS 0/8,
+14dBm @ MCS 1/9
+14dBm @ MCS 2/10
+14dBm @ MCS 3/11
5GHz/HT40
+14dBm @ MCS 4/12
+10– 13dBm @ MCS 5/13
+8 – 11dBm @ MCS 6/14
+6 – 9dBm @ MCS 7/15
Tab. 14 Output Power
Note*:
Please keep in mind that this is the raw output power for the RF module; note that the
device has been tested with two 3 dbi @2.4GHz and 5 dbi @5GHz antenna.
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Receiver Sensitivity
Data Rate
IEEE Spec (1RX dBm)
Typical/Maximum
(2RX dBm)
6M
-82
-95/-85
9M
-81
-94/-84
12M
-79
-93/+82
18M
-77
-90/-80
24M
-74
-88/-77
36M
-70
-84/-73
48M
-66
-82/-69
54M
-65
-81/-68
1M
Not specified
-98/-85
5.5M
Not specified
-98/-85
11M
Not specified
-94/-85
6M
-82
-96/-85
9M
-81
-96/-84
12M
-79
-95/-82
18M
-77
-93/-80
24M
-74
-90/-77
36M
-70
-87/-73
48M
-66
-83/-69
54M
s-65
-82/-68
MCS0
-82
-94/-85
MCS1
-79
-92/-82
MCS2
-77
-90/-80
MCS3
-74
-87/-77
MCS4
-70
-84/-73
MCS5
-66
-79/-69
MCS6
-65
-78/-68
MCS7
-64
-76/-67
802.11a
802.11b
802.11a/n
HT20
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802.11a/n
HT40
802.11b/g/n
HT20
802.11b/g/n
HT40
77
MCS0
-79
-92/-82
MCS1
-76
-90/-79
MCS2
-74
-87/-77
MCS3
-71
-84/-74
MCS4
-67
-80/-70
MCS5
-63
-76/-66
MCS6
-62
-74/-65
MCS7
-61
-72/-64
MCS0
-82
-95/-85
MCS1
-79
-94/-82
MCS2
-77
-92/-80
MCS3
-74
-89/-77
MCS4
-70
-86/-73
MCS5
-66
-82/-69
MCS6
-65
-80/-68
MCS7
-64
-78/-67
MCS0
-79
-92/-82
MCS1
-76
-92/-79
MCS2
-74
-89/-77
MCS3
-71
-86/-74
MCS4
-67
-83/-70
MCS5
-63
-77/-66
MCS6
-62
-76/-65
MCS7
-61
-75/-64
Tab. 15 Receiver Sensitivity
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Operation Distance
Standard
Outdoor
Indoor
802.11a
50m @ 54Mbps
30m @ 54Mbps
300m @ 6Mbps
100m @ 6Mbps
150m @ 11Mbps
30m @ 11Mbps
300m @ 1Mbps
100m @ 1Mbps
50m @ 54Mbps
30m @ 54Mbps
300m @ 6Mbps
100m @ 6Mbps
30m @ 300Mbps
20m @ 300Mbps
30m @ 130Mbps
20m @ 130Mbps
250m @ 6.5Mbps
100m @ 6.5Mbps
802.11b
802.11g
802.11n
Tab. 16 Operation Distances
Security

64-bit and 128-bit WEP encryption

802.1x authentication

AES and TKIP, WPA/WPA2
Others

Reset Button: Yes
Regulatory requirements

EMC: EN 301489-1: 2008, EN301489-17: 2009 (Class A), FCC 15B (Class A), CNS
13438

Radio: FCC 15C 15.247, FCC 15E 15.407, EN 301893: 2008, EN 300328: 2006,
NCC LP00002

EMF: EN 62311: 2008, EN 50385: 2002,

Safety: UL60950-1, EN60950-1, CNS 14336

Shock: IEC 60068-2-27

Freefall: IEC 60068-2-32
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User´s Manual
Industrial Wireless Access Point DM500

Vibration: IEC 60068-2-6

MTB*F: 20 years

RoHS: Yes

Maritime: N/A

Hazardous location: IEC 62368-1
Test
Item
Value
Contact Discharge
IEC 61000-4-2
IEC 61000-4-4
IEC 61000-4-5
Level
±8KV
4
±15KV
4
Radiated(Enclosure)
10(V/m)
3
AC Power Port
±2.0 KV
3
LAN Port
±2.0 KV
4
COM Port
±2.0 KV
4
AC Power Port
Line-to-Line±1.0 KV
3
AC Power Port
Line-to-Earth±2.0 KV
3
LAN Port
Line-to-Earth±2.0 KV
3
COM Port
Line-to-Earth±2.0 KV
3
ESD
Air Discharge
IEC 61000-4-3
79
RS
EFT
Surge
IEC 61000-4-6
CS
Conducted(Enclosure)
10 V rms
3
IEC 61000-4-8
PFMF
(Enclosure)
10(A/m)
3
IEC 61000-411
DIP
AC Power Port
-
-
Note: Above certifications are subject to change depending on product’s final destination. DC Ports are tested
through a power adaptor available in the accessories kit.
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6.2. Software Specifications
Configuration

Browser (IE8+, Firefox 6+, and Chrome 13+)

Telnet

Serial Manager© (Windows utility)

ICMP

TCP

UDP

DHCP

DNS

SNMP

NTP

SMTP

HTTP

HTTPS

IPv4

802.1x

RADIUS

Syslog
Alert Events

E-mail
Radio OFF

SNMP Trap
Yes
Protocol
Other







Multiple SSID
Wireless Scheduler
Config Import / Export from Web
Firmware upgrade through Web or Device View©
Site Monitor / Site Survey
Wireless Isolation
Firewall/Filtering (Wired / Wireless MAC Filtering, Ethernet Type
Filtering, IP Filtering, Management List)
Tab. 17 Software Specifications
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6.3. LED Indicators
Name
Regular AP
Mode
WDS Bridge
Mode
Color
Status
Green
On
The Access Point (AP) function is enabled and has more than one
wireless client connected.
Blinking
The AP function is enabled and does not have any wireless client
connected.
Green
Off
The Access Point (AP) function is disabled.
On
The WDS Bridge function is enabled and the WDS is connected
successfully.
Blinking
AP Client
Mode
5GHz
Locate
Green
Red
Green
Orange
Green
The WDS Bridge function is disabled.
On
The AP Client function is enabled and connected to the remote AP
successfully
Blinking
The AP Client function is enabled but not connected to the remote
AP
Off
The AP Client function is disabled.
On
The AP is running on 5GHz band if WLAN LED is On.
Off
The AP is running on 2.4GHz band if WLAN LED is On
Blinking
Blinking
Green
The AP is being located
The AP is not being located
Ethernet is Connected on 10Mbps
On
Ethernet is Connected on 100/1000Mbps
Off
Ethernet is Disconnected
Blinking
On
WLAN
The WDS Bridge function is enabled and the WDS is not
connected successfully.
Off
Off
LAN
Description
Blinking
Data is transmitting on Ethernet
Wireless Radio is enabled
Wireless Radio is enabled and data is transmitting
Off
Wireless Radio is disabled (Mode LEDs should also disable)
Off
System is not powered on
RUN
Green
RUN
Blinking
Rapidly
AP firmware is running normally
Blinking
Steadily
AP firmware is not running
Tab. 18 LED Indicators
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Warranty
Limited Warranty Conditions
Products supplied by us are covered in this warranty for undesired performance or defects
resulting from shipping, or any other event deemed to be the result of Welotec´s mishandling.
The warranty does not cover however, equipment which has been damaged due to accident,
misuse, abuse, such as:

Use of incorrect power supply, connectors, or maintenance procedures

Use of accessories not sanctioned by us

Improper or insufficient ventilation

Improper or unauthorized repair

Replacement with unauthorized parts

Failure to follow Our operating Instructions

Fire, flood, “Act of God”, or any other contingencies beyond our control.
RMA and Shipping Reimbursement

Customers must always obtain an authorized “RMA” number from us before shipping
the goods to be repaired.

When in normal use, a sold product shall be replaced with a new one within 3 months
upon purchase. The shipping cost from the customer to us will be reimbursed.

After 3 months and still within the warranty period, it is up to us whether to replace the
unit with a new one; normally, as long as a product is under warranty, all parts and labor
are free of charge to the customers.

After the warranty period, the customer shall cover the cost for parts and labor.

Three months after purchase, the shipping cost from you to us will not be reimbursed,
but the shipping costs from us to the customer will be paid by us.
Limited Liability
Welotec GmbH shall not be held responsible for any consequential losses from using our
products.
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