Digi transport User Manual

Digi TransPort

User Guide

Digi TransPort User Guide

(Part number 90001019)

Revision Date Description

A February, 2009 Initial Release.

B February, 2009 Added bug fixes.

C April, 2009 Revised with firmware updates.

D October, 2009 Revised with firmware updates.

E May, 2005 Added minor changes.

F March, 2012 Changed default IP address and added temperature monitoring section.

G May, 2012 Updated autosa and ouridtype parameters.

H August, 2012 Added GPIO section.

K April, 2013 Added several new commands including network status commands, GOBI

image load selection and MultiTX.

L February, 2015 Added PPP CLI commands and fixed errors.

MDecember,

2015

N January, 2016 Updated TransPort WR31 serial pinout diagram and links to it. Updated links

Added TransPort WR31 product information. Created Hardware chapter to
house all hardware content for models, including content migrated from
Installation Guides. Addressed several technical issues. Reorganized content
and deleted obsolete product information.

and information Dynamic DNS feature.

Disclaimers

Information in this document is subject to change without notice and does not represent a commitment on
the part of Digi International. Digi provides this document “as is,” without warranty of any kind, expressed
or implied, including, but not limited to, the implied warranties of fitness or merchantability for a particular
purpose. Digi may make improvements and/or changes in this manual or in the product(s) and/or the
program(s) described in this manual at any time.

Trademarks and copyright

Digi, Digi International, Digi TransPort, Digi Remote Manager, and the Digi logo are trademarks or registered
trademarks in the United States and other countries worldwide. All other trademarks mentioned in this
document are the property of their respective owners.

© 2016 Digi International. All rights reserved.

Customer support

If you need assistance, contact technical support:

Telephone (8:00 am - 5:00 pm—U.S. Central Time):

866.765.9885 toll-free U.S.A. & Canada

801.765.9885 Worldwide

Fax: [phone]

Online: www.digi.com/support/eservice/

Mail:

Digi International

11001 Bren Road East

Minnetonka, MN 55343 USA

Digi TransPort User Guide 3

Contents

Introduction to Digi TransPort routers

Hardware

TransPort WR 11 10
TransPort WR21 11
TransPort WR31 12
TransPort WR 41 14
TransPort WR44 / WR44 R 15
TransPort WR44 RR 17

TransPort WR11 hardware 19
TransPort WR21 hardware 29
TransPort WR31 hardware 36
TransPort WR41 hardware 50
TransPort WR44 / WR44 R hardware 60
TransPort WR44 RR hardware 71
LTE specifications 77
Accessories 78
Serial port connections and pinouts 78
Signal strength indicators 79
Regulatory and safety statements 85

Use the Digi TransPort web interface

Log in to the device 101
Log out and return to the login page 103
Accessing the web interface Via a LAN port 103
Configure and test W-WAN models from the web interface 104
Signal strength indicators on the Mobile status page 105
Web interface wizards 106

Use the Digi TransPort command-line interface

About the Digi TransPort command line interface 112
Supported command types 112
Required software for using the command line 112
Connect to the TransPort router from a PC 113
Log in from the command line 113
Commands and the active port 113
When commands take effect 113
View current configuration changes 114
Save changes 114
Configure network settings 114
Establish a remote connection 115
AT commands 116
Application commands 137

Digi TransPort User Guide 4

Configure network interfaces

Configure Ethernet interfaces 152
Configure Wi-Fi interfaces 177
Configure mobile interfaces 189
Configure DSL interfaces 214
Configure GRE interfaces 223
Configure ISDN interfaces 228
Configure PSTN interfaces 250
Configure DialServ interfaces 258
Configure serial interfaces 267
Configure Advanced interfaces settings 287

Configure DHCP servers

About DHCP servers 325
DHCP Server parameters for Ethernet n 326
Advanced DHCP parameters 329
Advanced DHCP options 330
Logical Ethernet interfaces 331
DHCP options 332
Static lease reservations 333

Configure network services

Network Services page 334
Network Services parameters 335

Configure DNS servers and Dynamic DNS

Configure DNS Servers 338
Configure Dynamic DNS 344

Configure IP routing and forwarding

View the TransPort routing table 349
Supported routes 349
IP Routing parameters 352
Static routes 355
Default Route n parameters 361
RIP parameters 368
Interfaces > Ethernet / PPP / GRE parameters 373
OSPF parameters 375
BGP parameters 377
IP Port Forwarding / Static NAT Mappings parameters 379
Multicast Routes parameters 381
Virtual Routing and Forwarding (VRF) 383

Configure Virtual Private Networking (VPN)

About Virtual Private Networks (VPNs) 389
About Internet Protocol Security (IPSec) 389
IPsec parameters 394
PPTP parameters 445
OpenVPN parameters 447

Digi TransPort User Guide 5

Configure Secure Sockets Layer (SSL)

About the Secure Sockets Layer (SSL) 454
SSL Clients parameters 455
SSL Server parameters 457

Configure Secure Shell (SSH) server and client

About the Secure Shell (SSH) server 459
Configure Secure Shell (SSH) server parameters 460
Configure Secure Shell (SSH) Client 464
SSH parameters 468
Generate an SSH private key from the web interface 468
Generate an SSH private key from the CLI 469
SSH Authentication with a public/private key pair 469

Configure FTP Relay

About FTP relay agents 471
FTP Relay n parameters 472
Advanced FTP Relay parameters 475

Configure IP passthrough

About IP passthrough 476
IP Passthrough page configuration parameters 477
Related CLI commands 478

Configure UDP echo

About UDP echo 480
UDP Echo n parameters 480
Related CLI commands 481

Configure Quality of Service (QoS)

About Quality of Service (Qos) 483
Configuring QoS in the web interface 484
DSCP Mappings parameters 485
Queue Profiles parameters 486

Configure time bands

About time bands 488
Enable and disable time bands for a PPP instance 489
Timeband page parameters 490
Related CLI commands 491

Configure advanced network settings

About advanced network settings 492
Advanced Network Settings descriptions 493

Digi TransPort User Guide 6

Configure legacy protocols

Configure Systems Network Architecture over IP (SNAIP) 500
Configure TPAD parameters 509
Configure X.25 parameters 521
Configure MODBUS Gateway parameters 563
Configure Protocol Switch software 567

Configure alarms

Event Settings parameters 587
Event Logcodes parameters 602
SMTP Account parameters 606

Configure system settings

Device Identity parameters 610
Date and Time parameters 612
Autoset Date and Time parameters 614
Start parameters 615
NTP parameters 617
General system parameters 621

Configure Remote Manager

About Digi Remote Manager 626
Remote Manager parameters 627
SNMP parameters 635

Configure security settings

System security settings 645
Users security settings 646
Firewall configuration 651
RADIUS parameters 682
TACACS+ parameters 687
Advanced security settings 691
Command filters 692

Configure position (GPS) settings

About the GPS module on TransPort routers 694
GPS parameters 695
Related CLI commands 697
Configure GPS support for the GOBI3000 module 699

Manage applications

Manage ScriptBasic applications 701
Manage Python applications 703

Digi TransPort User Guide 7

Manage networks and connections

View network interface status 706
Manage connections 743
Manage position (GPS) information 751
View and manage the event log 753
Use the Analyser 754
Monitor and manage network top talkers 763

Device administration tasks

View system information 766
Manage files 769
Manage X.509 certificates and host key pairs 788
Update firmware 797
Reset the router to factory default settings 798
Execute a command 799
Save configuration settings to a file 800
Reboot the router 801

Troubleshooting

Troubleshooting Resources 803
Download the debug.txt file 804
Cannot open the web interface 805
Cannot log into the web interface 805
Troubleshoot the LTE-MIMO antenna orientation 805

Glossary

Digi TransPort User Guide 8

Introduction to Digi TransPort routers

The Digi TransPort WR family of 3G/4G cellular routers offers an all-in-one mobile
communications solution with true enterprise class routing, security and firewall. These
multifunction cellular routers feature a flexible design with optional integrated Wi-Fi access point
(with multi SSID) / client, USB, serial, VDSL, 1-, 2- or 4-port Ethernet switch with VLAN. Additional
configuration options include multiple serial ports (async or sync), GPS or telemetry I/O.

The Digi TransPort family offers an advanced routing, security and firewall feature set including
stateful inspection firewall 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.

Digi TransPort WR routers are ideal for transportation, POS, energy, medical, financial and digital
signage as well as cellular backup and remote device connectivity applications.

Digi management solutions provide easy setup, configuration and maintenance of large
installations of remote Digi TransPort devices. Digi Remote Manager
management for remote Digi cellular routers and gateways. Digi TransPort routers have the
following features:

• Enterprise class cellular routers with advanced dynamic routing, security and firewall features.

offers web-based device

• High speed LTE/4G router with fall back to both GSM and CDMA 3G/2G technologies.

• Optional integrated Wi-Fi access point and multiport Ethernet switch.

• Flexible interfaces including serial (async/sync), GPS, VDSL, USB, CAN Bus and telemetry I/O,
with flexible DC power options.

• Powerful integrated end user programming.

• Remote Management via windows remote management software or cloud hosted Remote
Manager.

Digi TransPort User Guide 9

TransPort WR 11

WWAN

PRI

WWAN

SEC

SERVICE SIGNAL POWER

Digi TransPort WR11 is a full-featured, cellular router offering the flexibility to scale from basic
connectivity applications to enterprise class routing and security solutions. With its high
performance architecture, Digi TransPort WR11 is designed for Wide Area Network connectivity
including 2.5G, 3G and 4G networks.

TransPort WR 11

Digi TransPort User Guide 10

TransPort WR21

POWER SERVICE WWAN

SIGNAL

Digi TransPort WR21 is a full-featured, cellular router offering the flexibility 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 firewall feature set
including stateful inspection firewall 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.

TransPort WR21

Digi TransPort User Guide 11

TransPort WR31

WW

AN PRI

9-30VDC
2A MAX

Digi’s TransPort WR31 is an intelligent 4G LTE router designed for critical infrastructure and
industrial applications.

TransPort WR31

Key features of the TransPort WR31 include:

• Global HSPA+ and 4G LTE support and certification on major carrier networks around the
world

• Software defined multi-carrier networking with Gobi 4G LTE, meaning one device that operates
in 2G, 3G, or 4G across all major North American carriers.

• Ethernet, serial, and I/O for connecting diverse field assets

• Extremely resilient cellular connection through Digi’s patented SureLink™, VRRP+ protocol,
and dual SIM slots

• Enterprise Routing features for security, logging, and redundancy (e.g. stateful firewall, VPN,
SNMP); no annual enterprise software license required

• Digi Remote Manager provides mass configuration, device management, and troubleshooting
tools

Digi TransPort User Guide 12

TransPort WR31

• Rugged aluminum enclosure, optimized for Din rail or shelf mounting

• Optional weatherproof enclosure

• 5 year warranty standard—no additional cost

The TransPort WR31 provides a secure, reliable connection to industrial controllers, process
automation equipment, and smart grid assets on third party sites or remote locations. This drop­in connectivity gives operators a way to reduce the cost of downtime and service calls and also
increase revenue by bringing distributed sites online faster.

The TransPort WR31 is ideal for connecting the following:

• Building and process automation controllers

• Smart grid assets (meters, switches, controllers)

• IP Cameras and access controllers

• Remote data loggers, flow meters, and sensing equipment

•Telco infrastructure

• Traffic and obstruction lighting

Digi TransPort User Guide 13

TransPort WR 41

The Digi TransPort WR family of cellular routers offers an all-in-one mobile communications
solution with true enterprise class routing, security and firewall. These multifunction cellular
routers feature a flexible design with an optional integrated Wi-Fi access point (with multi SSID) /
Client, USB, serial, and Ethernet, as well as a variety of configuration options including multiple
serial ports (async or sync), GPS or I/O telemetry modules.

The Digi TransPort family also offers an advanced routing, security and firewall feature set
including stateful inspection firewall 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.

Digi TransPort WR routers are ideal for transportation and mobile applications. Flexible power
options include AC, DC and 4-pin Molex connectors for direct integration into vehicle applications.
Also available is the Digi Remote Manager™ which provides easy setup, configuration and
maintenance of large installations of Digi TransPort devices.

TransPort WR 41

Model GPRS EDGE UMTS HSUPA EVDO / 1xRTT

WR-41-E

WR-41-G

WR41-U

WR41-C

WR41-U5











Digi TransPort User Guide 14

TransPort WR44 / WR44 R

TransPort WR44 / WR44 R

The Digi TransPort WR44 cellular router is an all-in-one mobile communications solution with
true enterprise-class routing, security and firewall. This multifunction cellular router features a
flexible design with integrated Wi-Fi access point, USB, serial and 4-port Ethernet switch, as well
as a variety of configuration options including multiple serial ports (async or sync), GPS or I/O
telemetry modules.

The Digi TransPort family offers an advanced routing, security and firewall feature set including
stateful inspection firewall 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.

Digi TransPort WR44 is ideal for transportation and mobile applications. Flexible power options
include 11-58 VDC barrel or molex connectors for direct integration into vehicle applications. Digi
Remote Manager™ provides easy setup, configuration and maintenance of large installations of
Digi TransPort devices.

Digi TransPort User Guide 15

TransPort WR44 / WR44 R

Digi TransPort WR routers are available on the following networks:

Model GPRS EDGE UMTS HSUPA EVDO / 1xRTT

WR-44-E

WR-41-G

WR44-U

WR44-C

WR44-U5











Digi TransPort User Guide 16

TransPort WR44 RR

Digi TransPort WR44 RR is a rugged enterprise-class cellular router designed for rail
environments. Its rail industry ratings, versatility, security features and performance make it ideal
for applications such as Positive Train Control (PTC), wayside device communications and on­board passenger Internet access.

Digi TransPort WR44 RR provides a reliable primary high speed cellular network connection or
can act as a secure backup connection to the existing railroad network. It features a flexible
communications design with 3G/4G multicarrier GSM/CDMA cellular, plus integrated Wi-Fi b/g/n
access point, serial and 4-port Ethernet switch. It also features full on-board train certifications,
including AREMA C/H and EN50155. Communications interfaces include hardened connectors,
including M12 for Ethernet and serial, as well as TNC connectors for antenna connections.

Digi management solutions provide easy setup, configuration and maintenance of large
installations of remote Digi TransPort devices. Digi Remote Manager offers web-based device
management for remote Digi cellular routers and gateways.

TransPort WR44 RR

Digi TransPort User Guide 17

Hardware

This section describes hardware specifications and features of TransPort products, presents
pinout information, and covers regulatory and safety statements and certifications.

• TransPort WR11 hardware on page 19

• TransPort WR21 hardware on page 29

• TransPort WR31 hardware on page 36

• TransPort WR41 hardware on page 50

• TransPort WR44 / WR44 R hardware on page 60

• TransPort WR44 RR hardware on page 71

• LTE specifications on page 77

• Accessories on page 78

• Signal strength indicators on page 79

• Regulatory and safety statements on page 85

Digi TransPort User Guide 18

TransPort WR11 hardware

1

2

4

3

TransPort WR11 EVDO model hardware features

TransPort WR11 hardware

Digi TransPort User Guide 19

TransPort WR11 hardware

1. LAN port: This Ethernet port connects the device to a 10/100 base-T Local Area Network
(LAN). The port is capable of auto-sensing for speed and wiring, so it can accept both straight­through or cross-over cable connections.

2. Power cord input: This locking power connector connects the device to a power source. The
connector should be inserted and rotated to lock in place.

3. LEDs:

• Service LED: Indicates the presence and level of cellular service running on the device.

Off: No cellular service

1 Blink: Device is running 1xRTT service

2 Blinks: Device is running EDVO Rev 0 service

3 Blinks: Device is running EDVO Rev A service

• Signal LED: Indicates strength of cellular signal.

Off: Poor or No signal. Place the device in a location where it gets a better signal.

Amber: Fair

Green: Good

•Power LED

Off: No power

Green: TransPort device is powered

4. Cellular antenna connector: This SMA female connector connects the device’s primary
cellular antenna.

Digi TransPort User Guide 20

TransPort WR11 HSPA+ model hardware features

1

2

4

3

5

6

TransPort WR11 hardware

1. LAN port: This Ethernet port connects the device to a 10/100 base-T Local Area Network
(LAN). The port is capable of auto-sensing for speed and wiring, so it can accept both straight­through or cross-over cable connections.

2. Power cord input: This locking power connector connects the device to a power source. The
connector should be inserted and rotated to lock in place.

3. LEDs:

• SERVICE LED: Indicates the presence and level of cellular service running on the device.

Off: No cellular service

1 Blink: GPRS mode

2 Blinks: EDGE mode

3 Blinks: UMTS mode

4 Blinks: HSDPA mode

5 Blinks: HSUPA mode

• SIGNAL LED: Indicates strength of cellular signal.

Off: Poor or No signal. Place the device in a location where it gets a better signal.

Amber: Fair

Green: Good

• POWER LED:

Off: No power

Green: TransPort device is powered

Digi TransPort User Guide 21

TransPort WR11 hardware

4. SIM door: Encloses the SIM sockets. The SIM door must be removed to install the SIM cards
For installation details, refer to the Quick Start Guide that came with your device.

Note To remove the SIM door, hold the device on a flat surface and using a screwdriver, firmly

pull the cover straight up.

5. Cellular antenna connector: This SMA female connector connects the device’s primary
cellular antenna.

6. SIM Sockets: SIM 1 and SIM 2 are for use with the Subscriber Identification Module(s) (SIMs).

Digi TransPort User Guide 22

TransPort WR11 LTE-MIMO hardware features

1

2

5

6

7

3

4

WWAN

PRI

WWAN

SEC

TransPort WR11 hardware

WWAN

PRI

WWAN

SEC

Digi TransPort User Guide 23

TransPort WR11 hardware

2

1. LAN port: This Ethernet port connects the device to a 10/100 base-T Local Area Network
(LAN). The port is capable of auto-sensing for speed and wiring, so it can accept both straight­through or cross-over cable connections.

2. Power cord input: This locking power connector connects the device to a power source. The
connector should be inserted and rotated to lock in place.

3. LEDs:

• SERVICE LED: Indicates the presence and level of cellular service running on the device.

Off: No cellular service

1 Blink: GPRS mode

2 Blinks: EDGE mode

3 Blinks: UMTS mode

4 Blinks: HSDPA mode

5 Blinks: HSUPA mode

6 Blinks: LTE mode

• SIGNAL LED: Indicates strength of cellular signal.

Off: Poor or No signal. Place the device in a location where it gets a better signal.

Amber: Fair

Green: Good

• POWER LED:

Off: No power

Green: TransPort device is powered

4. SIM door: Encloses the SIM sockets. The SIM door must be opened to install the SIM cards. For
installation details, refer to the Quick Start Guide that came with your device.

Note To open the SIM door, slide the SIM door out using your finger.

5. SIM sockets: SIM 1 and SIM 2 are for use with the Subscriber Identification Module(s) (SIMs).

6. Primary LTE antenna connector: This SMA female connector connects the device’s primary
cellular antenna.

7. Secondary LTE antenna connector: This SMA female connector connects the device’s
secondary cellular antenna.

Digi TransPort User Guide 24

TransPort WR11 XT

1

2

6

7

4

5

3

TransPort WR11 hardware

1. LAN port: This Ethernet port connects the device to a 10/100 base-T Local Area Network

Digi TransPort User Guide 25

2. Power cord input: This locking power connector connects the device to a power source. The

(LAN). The port is capable of auto-sensing for speed and wiring, so it can accept both straight­through or cross-over cable connections.

connector should be inserted and rotated to lock in place.

TransPort WR11 hardware

3. LEDs:

• SERVICE LED: Indicates the presence and level of cellular service running on the device.

Off: No cellular service

1 Blink: GPRS mode

2 Blinks: EDGE mode

3 Blinks: UMTS mode

4 Blinks: HSDPA mode

5 Blinks: HSUPA mode

6 Blinks: LTE mode

• SIGNAL LED: Indicates strength of cellular signal.

Off: Poor or No signal. Place the device in a location where it gets a better signal.

Amber: Fair

Green: Good

•POWER LED:

Off: No power

Green: TransPort device is powered

4. SIM door: Encloses the SIM sockets. The SIM door must be opened to install the SIM cards. For
installation details, refer to the Quick Start Guide that came with your device.

5. SIM sockets: SIM 1 and SIM 2 are for use with the Subscriber Identification Module(s) (SIMs).
Insert SIM cards with the notch facing the bottom-right corner of the device. If you are using
one SIM card only, insert it in the SIM 1 slot.

6. Primary cellular antenna connector: This SMA female connector connects the device’s
primary cellular antenna.

7. Secondary cellular antenna connector: This SMA female connector connects the device’s
secondary cellular antenna.

Digi TransPort User Guide 26

TransPort WR11 hardware specifications

TransPort WR11 hardware

Category

General features Dimensions (L x W x H) 3.9” x 5.2” x 1.3”

Cellular EDGE 850, 900, 1800, 1900 MHz

Power requirements Power input voltage 5V DC ± 5%

Specification

Weight 0.85 lbs.

GSM UMTS / HSPA 800/850, 900, 1700 (AWS),

CDMA 1xRTT 800, 1900 MHz

EVDO 800, 1900 MHz

LTE-AT&T 700 (B17) / 850 (B5) / AWS1700 (B4) / 1900

LTE-Verizon 700 (B13) / AWS1700 (B4)

LTE-Worldwide 800 (B20) / 1800 (B3) / 2600 (B7)

Value

(10 cm x 13.1 cm x 3.2 cm)

1900, 2100 MHz

(B2)

Power 3.5W typical, 15W maximum

Power connector Locking barrel

Environmental Operating temperature 0°C to 40°C required

TransPort WR11 XT only:

-30° to +70°C

See also Restricted Access Location notice

for TransPort WR11 XT on page 89

Relative humidity 5% to 90% (non-condensing)

Storage temperature -40° C to +80° C

TransPort WR11 XT only:

-40°C to+85°C

RoHS compliance Yes

Digi TransPort User Guide 27

TransPort WR11 hardware

Category

Specification

Approvals Emissions/Immunity

Safety

Value

EN 55022: 2010 Class B

FCC 15.109(g):2014 Class B

FCC 15.109:2014 Class B

ICES-003:2012 Class B

EN 55022: 2010 Class B

FCC 15.107:2014 Class B

ICES-003:2012 Class B

EN 61000-3-2:2006 (Amended by

A1:2009 and A2:2009) Class B

EN 61000-3-3:2008 Class B

EN 301 489-07 V1.3.1:2005 Class B

EN 550024:2010

EN 301 489-07 V1.3.1:2005

EN 60950-1: :2006 + A1:2010 +

A11:2009 + A12:2011

IEC 60950-1:2005+ A1:2009

UL 60950-1 2nd Ed. Revised 2011-12-

19

CSA C22.2 No. 60950-1 -07 + A1:2011

Mobile certifications-GSM AT&T & PTCRB

Mobile certifications-

Sprint & Verizon

EVDO

Mobile certifications-LTE AT&T; Verizon; PTCRB

Wireless carrier

Certified by most major carriers.

certifications

Digi TransPort User Guide 28

TransPort WR21 hardware

POWER SERVICE WWAN

SIGNAL

1

2

3

4

5

6

7

TransPort WR21 front panel features

1. SIM/R-UIM sockets (SIM card models only): SIM 1 and SIM 2 are for use with the Subscriber
Identification Module(s) (SIMs) or Removable User Identification Module(s) (R-UIMs).

2. POWER LED:

• Off: No power

• Green: TransPort device is powered

TransPort WR21 hardware

3. SERVICE LED:

• Off: No WWAN network connection

• Green: WWAN network connection

• Flashing: WWAN traffic being transmitted or received

4. WWAN (Wireless Network) LED: Indicates the presence and level of cellular service running on the

device.

• Off: No cellular service

• 1 Blink: GPRS mode

• 2 Blinks: EDGE mode

• 3 Blinks: UMTS mode

• 4 Blinks: HSDPA mode

• 5 Blinks: HSUPA mode

• 6 Blinks: LTE mode

5. SIGNAL LED: Indicate strength of cellular signal.

• 3 LEDs: Excellent

• 2 LEDs: Good

• 1 LED: Fair

• 0 LEDs: Poor or No signal

6. Reset button: Returns the router to its factory default settings.

7. USB host connector: Connects compatible USB 2.0 client devices such as memory sticks, and
serial adapters. The total current available to power USB devices is 0.5A.

Digi TransPort User Guide 29

TransPort WR21 hardware

Reset the TransPort WR21

1. Turn the router on and wait 15 seconds for the router to complete its initialization process.

2. Press and hold the reset button gently for 5 seconds. After this time, the router will
automatically re-boot and display a pattern of alternating LEDs flashing followed by the
normal boot sequence.

CAUTION! Do not remove power from the router during this operation, as corruption of the

flash memory may occur.

Digi TransPort User Guide 30