Digi W R 2 1 User Manual
TransPort®WR21
Wireless Routers
Installation Guide
January 30, 2012
Digi TransPort® WR21 Installation Guide
Disclaimer
Digi International makes no representations or warranties with respect to the contents or use of this manual,
any software drivers or associated application software provided with this product and specically disclaims
any expressed or implied warranties of merchantability or tness for any particular purpose.
Digi International reserves the right to modify or revise all or part of this document, its contents, and any
products described herein at any time without prior notication and shall not be responsible for any loss, cost
or damage, including consequential damage, caused by reliance on these materials.
Digi Technical Support Contact Information
United States: (952) 912-3444 or (877) 912-3444
Other Locations: +1 (952) 912-3444 or (877) 912-3444
EMEA +44 870 35 000 35
Safety Notices
1. Please read all instructions before installing and powering the unit. You should keep these instructions in
a safe place for future reference.
2. If the power supply shows signs of damage or malfunction, stop using it immediately, turn off the power
and disconnect the power supply before contacting your supplier for a repair or replacement.
3. Changes or modications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment. Use only the accessories, attachments, and power supplies
provided by the manufacturer – connecting non-approved antennas or power supplies may damage the
unit, cause interference or create an electric shock hazard, and will void the warranty.
4. Do not attempt to repair the product. The unit contains no electronic components that can be serviced or
replaced by the user. Any attempt to service or repair the unit by the user will void the product warranty.
5. Products in the TransPort WR® family are designed for indoor use (except for the WR44 R) and should be
used in an environment that is suitable for computers and other electronic equipment.
6. Ports that are capable of connecting to other apparatus are dened as SELV ports. To ensure conformity
with IEC60950 ensure that these ports are only connected to ports of the same type on other apparatus.
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Digi TransPort® WR21 Installation Guide
Special notes on safety for wireless routers
Digi International products are designed to the highest standards of safety and international standards
compliance for the markets in which they are sold. However, cellular-based products contain radio devices
which require specic consideration. Please take the time to read and understand the following guidance. Digi
International assumes no liability for an end user’s failure to comply with these precautions.
Wireless routers incorporate a wireless radio module. Users should ensure that the
antenna(s) is (are) positioned at least 1 meter away from themselves and other persons
in normal operation.
When in a hospital or other health care facility, observe the restrictions on the use of
mobile phones. Do not use the unit in areas where guidelines posted in sensitive areas
instruct users to switch off mobile phones. Medical equipment may be sensitive to RF
energy.
The operation of cardiac pacemakers, other implanted medical equipment and hearing
aids can be affected by interference from cellular terminals such as the wireless routers
when places close to the device. If in doubt about potential danger, contact the physician
or the manufacturer of the device to verify that the equipment is properly shielded.
Pacemaker patients are advised to keep the wireless router away from the pacemaker
while it is on.
Wireless routers must NOT be operated on aircraft. The operation of wireless appliances
in an aircraft is forbidden to prevent interference with communications systems. Failure
to observe these instructions may lead to the suspension or denial of cellular services to
the offender, legal action, or both.
As with any electrical equipment, do not operate the unit in the presence of ammable
gases, fumes or potentially explosive atmospheres. Radio devices should not be used
anywhere that blasting operations are taking place.
Wireless routers receive and transmit radio frequency energy when power is on.
Interference can occur if used close to TV sets, radios, computers or inadequately
shielded equipment. Follow any special regulations and always power off your unit
wherever forbidden or when it may cause interference or danger.
SOS IMPORTANT! - Wireless routers operate using radio signals and cellular networks
cannot be guaranteed to connect in all possible conditions. Therefore, never rely solely
upon any wireless device for life critical communications.
Warning: For environments where the temperature is 55° C or above, this device must
be installed in a restricted access area.
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Digi TransPort® WR21 Installation Guide
Table of Contents
1 Package Contents ..................................................................................... 5
2 Introduction ................................................................................................ 6
2.1 Front Panel Features .......................................................................................7
2.2 Rear Panel Features ........................................................................................8
3 Installation .................................................................................................. 9
4 Conguration ............................................................................................. 11
4.1 Network Settings ..............................................................................................11
4.2 Web Interface ....................................................................................................11
4.3 Command Line Interface (CLI) ..........................................................................14
5 Troubleshooting ........................................................................................ 16
5.1 Troubleshooting Resources .............................................................................16
5.2 Unable to open the Web Interface ....................................................................16
5.3 Unable to log in to the Web Interface ...............................................................16
6 Specications ............................................................................................ 17
7 Accessories ............................................................................................... 18
Appendix A: SERIAL 0 Port Pin-out Diagram....................................... 19
Appendix B: Software Options............................................................... 20
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1 Package Contents
Digi TransPort® WR21 Installation Guide
TransPort WR21
Cellular
Antenna(s)
Ethernet Cable
Power Supply Adapters
[Non-US models only]
If any item is missing or damaged, please contact your supplier. Also, make a record of any damage that may
have occurred during shipping and report it to the carrier.
Depending on model and conguration, the package will also contain additional cables/antennas as appropriate.
Power Supply
(some models may include a DC Power
Cord or have no Power Supply)
Installation Guide
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Digi TransPort® WR21 Installation Guide
Preface
This guide describes the installation procedure for the Digi TransPort WR family of routers. It is intended to
provide sufcient information to be able to connect the unit to terminal equipment and power-on the unit. A
complete reference guide to the software features that are available on the product is available separately in
PDF format and can be downloaded from the Digi International web site (www.digi.com).
2 Introduction
Digi TransPort WR21 is a full-featured, cellular router offering the exibility to scale from basic connectivity
applications to enterprise class routing and security solutions. With its high performance architecture, Digi
TransPort WR21 is designed for Wide Area Network connectivity including 2.5G/3G/4G networks.
Digi TransPort WR21 is available with a range of Ethernet, Serial (RS232, RS422/485) and Power connector
options.
Digi TransPort WR21 also offers an optional advanced routing, security and rewall feature set including
stateful inspection rewall and integrated VPN. Enterprise class protocols incorporate BGP, OSPF and
VRRP+, a patented technology built upon the popular VRRP failover standard providing true auto sensing,
auto failure and auto recovery of any line drop.
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Digi TransPort® WR21 Installation Guide
2.1 Front Panel Features
1. SIM/R-UIM Sockets (SIM card models only) - SIM 1 and SIM 2 are for use with the Subscriber
Identication Module(s) (SIMs) or Removable User Identication Module(s) (R-UIMs).
2. LED Status Indicator - POWER - Illuminates steady when power is connected.
3. LED Status Indicator - SERVICE - Illuminates steady when there is a network connection to the WWAN
interface and ashes when data is transmitted or received.
4. LED Status Indicator - WWAN (Wireless Network) - Flashes to show which network mode the unit is
operating in:
• Off - no service
• 1 blink - GPRS mode
• 2 blinks - EDGE mode
• 3 blinks - UMTS mode
• 4 blinks - HSDPA mode
• 5 blinks - HSUPA mode
• On steady - CDMA mode
5. LED Status Indicator - SIGNAL.
• 0 LEDs illuminated: < -113 dBm (effectively no signal)
• 1 LED illuminated: >= -112 dBm and <= -87 dBm (weak)
• 2 LEDs illuminated: >= -86 dBm and <= -71 dBm (medium)
• 3 LEDs illuminated: >= -70 dBm and <= -51 dBm (strong)
6. USB Host Connector - The USB host connector may be used to connect compatible USB 2.0 client
devices such as memory sticks, and serial adapters. The total current available to power USB devices is
0.5A.
7. Reset button - The reset button allows the user to return the unit to its factory default settings.
2.1.1 Reset instructions
Step 1) Turn the unit on and wait 15 seconds for the unit to complete its initialization process.
Step 2) Press and hold the reset button gently for 5 seconds. After this time, the unit will automatically re-boot
and display a pattern of alternating LEDs ashing followed by the normal boot sequence.
Note: Do not remove power from the unit during this operation as corruption of the ash memory may occur.
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2.2 Rear Panel Features
WWA N
SECONDARY
SERIAL 0
9-30VDC
2A MAX
WWA N
PRIMARY
7
LAN 1LAN 0
Digi TransPort® WR21 Installation Guide
1. Secondary Cellular (WWAN) Antenna Connector - This SMA female connector is used to connect the
unit’s secondary cellular antenna. It is highly recommended to use the secondary antenna for diversity. In
most circumstances, dual antennas will provide improved signal strength thus better performance.
2. LAN 0 - This RJ45 port is used to connect the unit to a 10/100 base-TLAN. The port is auto-sensing for
speed and wiring (straight-through or cross-over).
3. LAN 1 (optional) - This RJ45 port is used to connect the unit to a 10/100 base-TLAN. The port is autosensing for speed and wiring (straight-through or cross-over).
4. Serial 0 Port - This DB9 port provides an asynchronous RS232 (RS485 optional) serial port with optional
RS422/485 support which may be which may be used to connect the unit to a compatible serial device.
This is a DCE serial port and allows CLI access to the device by default; the baud rate is 115200. A pinout
diagram is available in Appendix A: SERIAL 0 Port Pin-out Diagram on page 19.
5. Power Cord Input – This socket is used to connect the unit to a power source using either the supplied
Power supply or DC power cord. The barrel plug connector can be secured by rotating it by 90o once
installed into the Digi TransPort unit.
6. Primary Cellular (WWAN) Antenna Connector - This SMA female connector is used to connect the unit’s
primary cellular antenna.
7. Power Cord Input (Terminal Block Variant) – This socket is used to connect the unit to an alternative
power source. For wiring details, see Section 3 Installation.
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