US Robotics USR3520, USR803520, Courier USR3510, Courier USR803510 User Manual

USRobotics® Courier®

Modemulator™ & 3G M2M Cellular Gateway

Gateway User Guide & Technical

Documentation

For the following products:

USR3520, USR803520

R24.0799.00

07/08/2015

Table of Contents

Table of Contents .......................................................................................................................................... 2

User Guide .................................................................................................................................................... 4

Introduction ............................................................................................................................................... 4

Base Unit Hardware .................................................................................................................................. 5

Expansion Cards ........................................................................................................................................ 7

USR Universe ............................................................................................................................................. 8

Custom Developer Images ........................................................................................................................ 9

Network Interfaces .................................................................................................................................... 9

Installing the Gateway ............................................................................................................................. 10

Configuring the Base Unit ....................................................................................................................... 19

Configuring Expansion Cards ................................................................................................................... 63

Hardware Guide .......................................................................................................................................... 71

Mechanical Drawings .............................................................................................................................. 71

IP-65 requirement ................................................................................................................................... 72

Front and Back Panels ............................................................................................................................. 73

LED Descriptions ...................................................................................................................................... 77

Main Board Specifications ....................................................................................................................... 78

Expansion Card Specifications ................................................................................................................. 79

RF Specifications ...................................................................................................................................... 89

Ethernet Specifications............................................................................................................................ 94

Environmental Specifications .................................................................................................................. 98

Power Requirements ............................................................................................................................... 98

Internal Power Circuits ............................................................................................................................ 99

SIM Card Requirements ........................................................................................................................ 101

Certification and Operator Approvals ................................................................................................... 102

USR Universe Guide .................................................................................................................................. 110

Introducing the USR Universe ............................................................................................................... 110

Creating an Account .............................................................................................................................. 110

Signing In ............................................................................................................................................... 112

Activating a Gateway Using USR Universe ............................................................................................ 113

Groups ................................................................................................................................................... 115

Devices .................................................................................................................................................. 125

Users ...................................................................................................................................................... 139

Managing Software ............................................................................................................................... 142

Editing Your Account ............................................................................................................................. 152

Appendicies ............................................................................................................................................... 154

Appendix A: DB9 Pinouts ....................................................................................................................... 154

Appendix B: Excessive Data Usage Warning ......................................................................................... 155

Troubleshooting ........................................................................................................................................ 157

Licenses ..................................................................................................................................................... 162

User Guide

This USRobotics Courier Modemulator & 3G M2M Cellular Gateway User Guide explains how to install, activate, and configure your device for use as a cellular gateway when the Modemulator function is bypassed.

This guide is designed for:

 Distributors  System integrators  Field engineers

Gateway hardware specifications and technical information are available in the Hardware Guide section of this document. Information about deploying gateway firmware, configuration and software updates is available in the Provisioning Server Guide section of this document.

Introduction

The Courier Modemulator & 3G M2M Cellular Gateway from USRobotics can bypass the Modemulator logic to operate as a USR3510 cellular gateway. In gateway mode it provides LAN to WWAN and Serial to WWAN routing and GPS functionality in a simple, cost-effective base unit. The gateway can be configured locally or remotely from a PC, tablet, or smartphone. The USR3520 is certified on all major U.S. cellular operators (CDMA/EvDO and WCDMA/HSPA).

The USR3520 is pre-loaded with a USR3516-EMU Modemulator card in its primary expansion slot.

Base Unit Design

The base unit design features Serial-to-WWAN, LAN-to-WWAN, and GPS interfaces, advanced error detection, and repair watchdogs. When a component or software process loses connectivity, the device automatically resets or repowers itself. You can also schedule the device to reset at specific intervals to ensure daily, error-free operation.

Finally, the device can be monitored and provisioned remotely, which vastly reduces the technician time on site, and enables firmware updates and new software features to be deployed quickly and efficiently.

Expansion Slots

The gateway can be user-customized with expansion cards available from select electronics distributors. The USR3516-EMU Modemulator card that is pre-loaded in the primary expansion slot can be removed and replaced with another expansion card, and the secondary expansion slot can be loaded with an expansion card. Contact a USRobotics Sales representative for more details.

Feature Overview

Reliability and Security

 Software and hardware watchdogs continually monitor for loss of connectivity and will repair the

problem if detected

 Software and configuration images are protected with digital signatures  Secure, redundant firmware and configuration images ensure the unit can revert to previous

working settings if a problem is detected

 Management functions are protected by certificate or password and applied over encrypted links

Flexibility

 Hardware expansion slots allow for additional radio and/or wired interfaces  Expansion cards are designed with board-edge connectors for easy installation and replacement in

the field

 Hardware and software development kits are available to partners for developing custom expansion

cards and software images

Provisioning

 The USR Universe allows for efficient deployment of firmware, configuration file and developer

image updates to multiple gateways at once.

More Resources

USR3520 M2M Cellular Gateway Datasheet (US)

USR803520 M2M Cellular Gateway Datasheet (WCDMA - EMEA)

Base Unit Hardware

The mechanical housing for each base unit is identical. Internally, the main board is also identical and is designed around a WWAN module and Ethernet interface.

The gateway can be user-customized with Option expansion cards available from select electronics distributors. The USR3516-EMU Modemulator card that is pre-loaded in the primary expansion slot can be removed and replaced with another expansion card, and the secondary expansion slot can be loaded with an expansion card. Contact a USRobotics Sales representative for more details.

The base unit consists of:

 Light weight aluminum housing with DIN rail and wall mounting options  Two SMA-type antenna interfaces: WWAN Main and WWAN Div/GPS  WLAN, GPS, System, and WWAN LEDs showing system status and signal strength  10/100 MB/s RJ-45 Ethernet interface  Primary expansion slot pre-loaded with USRobotics Modemulator card: USR3516-EMU  9-33 VDC power in with Micro-Fit™, dual row, 4-circuit connector  Available secondary expansion slot  Internal main board with WWAN module, Ethernet interface and GPS  Freescale i.MX280 450MHz Processor

o 64 MB Ram o 128 MB Flash o GTM68X WWAN module

Base Unit Versions

Two versions of the base unit exist:

 USR3520

o Contains the GTM689 cellular radio module which provides CDMA/EVDO and WCDMA

technology.

o Used in the U.S. and Canada and has the correct certification and approvals for these countries.

 USR803520

o Contains the GTM681 cellular radio module which provides WCDMA technology. o Used in Europe and has the correct certification and approvals for these countries.

Related Topics

Expansion Cards

Mounting options

Mechanical Drawings

Front and back Panels

Expansion Cards

The USRobotics M2M Cellular Gateway is compatible with Option expansion cards. For custom solutions, Option also licenses a hardware development kit. Third parties can design their own expansion cards to fit specific needs.

The expansion cards offered by Option include:

 WLAN expansion card (CG2101)  Low cost serial card (CG1101)  Industrial serial card (CG1102)  PoE Ethernet switch (CG1103)  Basic Ethernet switch (CG1104)

 Developer card (CG1105)

WLAN Expansion Card - CG2101

 Provides 802.11abgn  Simultaneous Access Point and Station mode for providing service or connection as a wireless LAN  Failover to WLAN client for WAN connectivity  Dual SSID

Low Cost Serial Card - CG1101

 Provides a single RS-232, 921.6Kbaud maximum speed.

Industrial Serial Card - CG1102

 One RS-232 port with 921.6 Kbaud maximum speed.  2 KV isolated RS-485 serial port, 921.6 kbaud, full duplex or half duplex; 2 wire or 4 wire with

switchable termination.

Basic Ethernet Switch - CG1104

 4-port 10/100Base-T  µSD card

Tip: You can set the USR Universe to enable or disable the automatic downloads.

PoE Ethernet Switch - CG1103

 Power over Ethernet board. (requires special power supply)  4-port 10/100Base-T with 2 ports class 4 or 4 ports up to class 3 PoE  µSD card

Developers Expansion Card - CG1105

 Extended format with headers on all interfaces to attach to development equipment  Pre-wired RS-232 port, GPIO connected temperature sensor, a relay and SD card slot.

Related Topics

Installing Expansion Cards

Configuring Expansion Cards

USR Universe

The USR Universe is the configuration and deployment mechanism for the USR Gateway. From the factory, the base unit is pre-configured for a USR3516-EMU Modemulator card.

On power-up, the gateway connects to the USR Universe over the wired Ethernet port and automatically downloads the appropriate update. If the Ethernet interface is unavailable, then the gateway uses the

WWAN interface to download the updates.

The Gateway downloads the following files from the USR Universe:

 Gateway firmware: System firmware provided by USRobotics.  Gateway developer image: customized software that provides additional functionality to the

gateway or controls third-party expansion cards.

 Gateway config file: configuration settings that can be applied to one or more gateways  Gateway GOBI firmware image: software that updates changes to wireless operator firmware

Related Topics

USR Universe Guide

3G Connection Tab

Custom Developer Images

To extend the base unit functionality provided by the gateway firmware, you can install developer software images onto an overlay file system and adapt the gateway to specific needs. Developer images can be created for custom applications and middleware, and to control third-party expansion cards.

Option licenses a software development kit which allows third parties to design developer images. For information on the Option CloudGate developer program, contact Option Customer Support.

Related Topics

USR Universe Guide

Network Interfaces

For connecting to the Internet, the base unit comes with an Ethernet interface and a WWAN (3G) interface. An optional WLAN interface is available only when the WLAN expansion card is installed.

While the WWAN network interface is always a direct connection to the Internet, or WAN, the Ethernet interface and optional WLAN interface can act as either a WAN or a local Area Network (LAN). The LAN interface allows local devices to connect to the Internet through the gateway.

The network interfaces available on the gateway are:

 Ethernet interface: can be a WAN or LAN connection depending on the behavior of the WAN/LAN

switchover feature at start-up or can be set manually.

 WWAN interface: always a WAN connection because it connects directly to the internet.  WLAN interface: optional Wi-Fi expansion card can be configured as either a WLAN client, which will

act as a WAN interface, or as a WLAN access point, which will act as a LAN interface.

Choosing a WAN or LAN Interface

The gateway can have only one WAN connection at a time. However the gateway can be connected to several different LAN networks simultaneously.

In choosing the network interface, you can specify:

 Manual: the network interface is selected through the embedded web interface on the Home page.  Automatic: a priority list defines which network interface to use to connect to the WAN/internet.

The network interface at the top of the list will try to connect to the WAN/internet first. If this succeeds then the gateway continues to use this network interface to connect to the WAN/internet. If the connection to the internet fails, the gateway tries the second interface in the priority list and so on. The priority list is defined in the embedded web interface on the Home page.

Warning: In firmware versions 1.12.0 and older, the ability to choose between automatic mode and manual mode and to set a connection priority list are not available. These firmware versions always try to connect to the internet over the Ethernet interface first. When this interface is not able to connect to the internet, the gateway will try to connect to the internet via the WWAN interface.

Related Topics

Configuring the Base Unit

Ethernet Tab

3G Connection Tab

WAN/LAN switchover feature

Installing the Gateway

To install the base unit out of the box, review the installation requirements and then follow the installation steps listed below. For information about customizing the base unit, learn about installing

expansion cards and provisioning the device with a custom developer image.

Installation Requirements

 Gateway base unit  Included power supply  Included WWAN antennas  Ethernet cable  Web browser on a laptop or smartphone.  A service plan from a wireless service provider.

o One of the following US wireless service providers:

 Sprint  Verizon Wireless  AT&T (requires SIM)  T-Mobile (requires SIM)

o For non US wireless service providers, any WCDMA based network will work.

Browser Requirements

For the Provisioning Server:

 Chrome 27.0 (.1453.110 m)  Firefox 21.0  Internet Explorer 9 (.0.8112.16421)  Internet Explorer 10 (.0.9200.16540)

MODE

Before installing your gateway device, read the safety guidelines carefully. Not following these guidelines can cause harm to the gateway, yourself or other persons.

For the gateway embedded web interface:

 Internet Explorer 9  Safari 5.1  Firefox (Windows 21.0, Mac 12.0)  Chrome (Windows 27.0.1453.110, Mac 26.0.1410.65)  Opera (Windows 12.02, Mac 12.10)

Installation Overview

Bypass Modemulator to use Gateway Mode

The USRobotics Courier Modemulator & 3G M2M Cellular Gateway can bypass the Modemulator logic to operate as a USR3510 cellular gateway.

To put the Modemulator into gateway mode, move the MODE switch to the right if not already there.

With power applied to the gateway, the MODE LED will be red when the Modemulator is switched into gateway mode.

To install the base unit:

1. Attach the antennas.

2. Install the SIM, if your wireless operator is using a SIM card, or make sure that a service plan is

associated with your device (for Sprint and Verizon).

3. Register the Gateway on the Provisioning Server.

4. Power on the Gateway.

5. Connect the Gateway to a laptop and log in to the embedded web interface.

6. Select a wireless operator in the 3G Connection tab.

 For operators using a SIM card, the network settings will populate automatically for most SIM

cards. Check the settings of the APN , Username and Password. Update them if appropriate. Click Save changes. Learn more about 3G network settings

Tip: For other wireless operators, such as Sprint or Verizon Wireless, make sure a service plan is associated with the device before continuing the installation.

 For CDMA based operators (for Sprint or Verizon, no SIM card is required), click Start

programming to start the activation sequence. Learn more about CDMA network settings

Attaching the Antennas

The base unit has two SMA-female antenna connectors on the front panel. Attach the included antennas to these connectors.

Related Topics

Front and Back Panels

RF Specifications

Installing the SIM

For some UMTS and 3G operators, such as AT&T, T-Mobile and European operators, you must install a SIM card associated with the service plan.

To install the SIM:

1. Using a T6 Torx screwdriver, remove the four screws from the top plate on the back panel, and then

remove the plate.

2. Insert the SIM into the SIM slot.

3. Replace the top cover plate and screws.

Related Topics

Selecting a Wireless Operator

Activating the Gateway

When you activate the gateway, you add the device to the USR Universe. The USR Universe allows you to configure one or more devices with the same firmware, configuration, and developer images.

To activate a gateway using a computer:

1. Open an internet browser and go to the USR Activate URL: http://www.usr.com/activate/3510

2. If you don’t have a user name and password, click Don't have an account yet? and follow the

instructions.

3. Sign in and complete the Activate Device page. Select or enter a User group, (your personal user

group is the same as your username), the type of activation, the serial number, and activation code.

4. Click Activate.

IMPORTANT: When using the USRobotics USR803520 (GSM/WCDMA only version), selecting the wireless operator is not needed and you can immediately go to step 7 on the next page.

WARNING!

LAN to WAN routing is enabled by default. Once connected, any

Internet activity on your system will consume Cellular Data. For

configuration and more information go to Appendix B

Related Topics

Creating an Account on the USR Universe

Activating the Gateway Using the USR Universe

Powering On the Gateway

To power on the gateway:

1. Plug the power supply into the power connector on the back of the unit and into a power source.

2. Observe the LEDs on the front panel. The gateway attempts to connect automatically with the USR

Universe and download the appropriate firmware, developer image, and configuration file. When the power-on sequence is complete, the System and WAN LEDs on the front panel turn green.

Related Topics

LED Descriptions

Selecting a Wireless Provider

For the minimum, out-of-the-box installation of the base unit, you have to connect the device to a laptop and use the embedded web interface to select the appropriate wireless provider firmware.

To connect the gateway to a laptop and select a wireless provider:

1. Connect an Ethernet cable to the Ethernet port on the gateway front panel and a network port on a

laptop or computer.

2. In a web browser, go the URL: 192.168.1.1.

3. In the login screen, enter the default username admin and password admin.

4. Click the 3G Connection tab in the top menu bar.

5. Scroll down to the Radio firmware selection field for the wireless operator firmware options.

6. Select the appropriate wireless provider and click Save changes.

Tip: When using an AT&T SIM card, select AT&T. For all other operators using SIM cards, select UMTS generic.

7. Proceed with the wireless provider selection.

 For Verizon Wireless and Sprint service

Make sure the service plan is already associated with the unit (MEID). Scroll down to the CDMA section and click Start programming to complete the activation.

Tip: Another way to determine the appropriate slot, is to look at the card connector. Cards with the small connector are installed in the rear slot. Cards with the large connector are installed in the front slot.

 For all SIM card based operators

The network settings populate automatically for most SIM cards. Scroll down to the Network Settings section and check the APN, Username, and Password fields. Update if necessary and click Save changes. If the service plan requires a PIN code, scroll down to the PIN Settings section, enable and enter the PIN code, and click Save changes.

Related Topics

Configuring the Base Unit

3G Connection Tab

Installing Expansion Cards

Gateway expansion cards are easy to install either during staging by a distributor or system integrator, or in the field by a technician.

Expansion cards are designed to fit in one of two expansion slots accessed from the unit’s front or back panels. In general, cards with antenna interfaces, such as the WLAN card, are installed in the back slot to avoid interference with the 3G antennas on the front of the base unit.

To install an expansion card:

1. Make sure the unit is powered off.

2. Using a T6 Torx screwdriver, remove the three screws from the bottom plate on the front or

back panel, and remove the plate.

3. With the expansion card in your hand, make sure the English labelling for any external

interfaces, such WLAN Antenna or Serial Port, are facing up. In this orientation, the card connector is also right facing.

Expansion Card

Slot

Wi-Fi Card (CG2101)

Back

Low Cost Serial Card (CG1101)

Front

Industrial Serial Card (CG1102)

Front

Basic Ethernet Switch (CG1104)

Front

PoE Ethernet Switch (CG1103)

Front

Developers Card (CG1105)

Front

Note: The expansion card faceplate will deform if the card is pulled at the edge.

Do not attempt to remove the expansion card by pulling its edge!

4. Slide the card into slot, using the side channels or grooves on the housing to guide the card into

place. Make sure the screw holes line up.

5. Push gently until the card is flush with the housing.

6. Secure the card with the screws.

The following table lists the expansion cards available from Option and the slot.

Removing Expansion Cards

1. Remove the Torx screws that fasten the card to the base unit.

2. Plug a connector into the mating connector on the expansion card. If the card has multiple

connectors, choose a connector near the right edge.

3. Remove the expansion card by pulling the plug or cable that is inserted into an expansion card

connector.

Tip: When choosing the mounting orientation of the unit, consider the direction of the cables and antennas. Make sure cables are routed with sufficient ease to all connectors, and that the antennas are unobstructed for easy positioning. The front panel LEDs should also be visible.

IMPORTANT: All mounting hardware is installer provided.

Related Topics

Configuring Expansion Cards

Mounting the Gateway

The gateway can be mounted on a wall or DIN rail.

Mounting on a wall

The gateway can be mounted on a wall with six screws. The mounting holes in the base of the gateway have a diameter of 4.3 mm. USRobotics recommends using screws with a minimum width of 4mm and a minimum length of 30 mm (M4x30mm).

To wall mount the gateway:

1. Mark the six holes with a pencil on the wall.

2. Drill (if necessary) the holes in the mounting surface. Do not drill into the gateway housing. Click

here for a drawing of the mounting holes.

3. Mount the gateway with six M4x30mm screws

Tip: To provision a number of gateways at once, use the web interface to create a configuration file and use the USR Universe to download the file to multiple devices.

Mounting on a DIN rail

To mount the gateway on a DIN rail, use two DIN rail adapters. USRobotics suggests adaptors from

the following companies:

 Phoenix Contact  DSB Marketing  Hammond

Configuring the Base Unit

When the gateway is connected to a laptop through an Ethernet cable, you can configure the device locally using the embedded web interface. The web interface allows you to configure one device at a time.

Learn how to log on to the embedded web interface

The web interface displays a number of tabs based on the expansion cards installed. For the base unit with the included USR3516-EMU Modemulator card, the following default tabs are available: Home, Ethernet, 3G Connections, Firewall, Connection Persistence, Provisioning, System, Plugin and VPN.

Click this tab

To do these tasks

Home

Verifying the Internet Connection Checking the Firmware Version

Ethernet

Disabling the WAN/LAN Switchover Feature Managing IP Configuration Settings

3G Connection

Configuring the WWAN Interface Choosing a Wireless Operator Setting Up SIM Parameters Setting Up WWAN Connection Parameters Choosing PIN Code Settings Setting up Verizon Wireless or Sprint wireless operators

Firewall

Setting Default Firewall settings Setting Up the DMZ Setting Up Inbound Port Forwarding Setting Up Outbound Port Filtering Setting Up Outbound Trusted IPs

Connection Persistence

Configuring the Connection Watchdog Configuring the Automatic Timed Reset

Provisioning

Setting up Automatic updates

System

Setting up the Time Zone Setting up Remote Access to the Gateway Setting up a Dynamic DNS Service Changing the Username and Password Creating Log Files Download a configuration file Manually Resetting the Gateway

Plugin

Setting up the serial port Setting up GPS reporting

VPN

Creating and configuring IPSec tunnels

Logging On to the Base Unit

To log on to the embedded web interface:

1. In a web browser, go to the URL: 192.168.1.1.

2. Enter the user name and password, and then click Login.

 Use the default username admin and password admin. You can change the default username

and password later if necessary.

Home Tab

The Home tab displays the gateway connection status, the connection settings, the different available LAN interfaces and the firmware and software versions installed.

Connection status

Displays the type of Internet connection and reports if the unit is connected or not connected.

Connection settings

Internet connection enabled:

 This parameter enables (Yes) or disables (No) the WAN interface.

Connections strategy:

 This parameter defines which interface should be chosen to connect to the internet (WAN

interface) in case multiple solutions are possible. Two possible solutions are available: Manual and priority based.

Manual

 In manual mode, the interface with a blue background will be the one and only interface to the

internet (WAN interface).

 In order to change the interface press on the "use this" button behind the interface you would

like to be the WAN interface.

Priority based

 In priority based mode the gateway will first try to make a WAN connection with the interface

on the top row of the table.

 When the first interface is unable to make a connection to the internet, the gateway will then

try the second interface.

 When the second interface fails the next line will be tried.  In order to change the priorities, click on the arrows behind the interface you would like to

change.

IMPORTANT: The gateway decides that it's not connected anymore when:

- the Ethernet connection cable is removed.

- when a disconnect message of the network is received via the 3G connection

- when the WLAN connection is out of range.

This functionality can be extended when used together with the connection persistence feature.

LAN interfaces

 Displays a list of the available LAN interfaces and their IP addresses.

VPN Tunnels

Displays a list of the active VPN tunnels.

System information

Device serial number

 Displays the serial number of the gateway

Firmware version

 Displays the current version of the system firmware. System firmware is required for the

gateway to operate.

Image version

 Displays the version of the developers image. This image is only required in case you need

features which are not part of the system firmware.

Configuration version

 Displays the version of the configuration file.  A configuration file is not mandatory, it's a way to provision gateway settings to multiple units.

Interfaces Tab

The interfaces menu groups the settings of all connection technologies

 Ethernet  3G Connection  WLAN Client  WLAN Access point

Ethernet Tab

The Ethernet tab configures the behavior of the Ethernet port on startup and manages IP nework settings.

Enabled

 Enables (Yes) the Ethernet interface on the main board of the gateway or disables (No) the

Ethernet interface

Result of WAN/LAN switchover feature

State of "Mode"

End result

WAN

LAN

WAN

LAN

WAN

Mode

 This will define the state of the Ethernet interface when the WAN/LAN Switchover feature is

disabled.

 When the WAN/LAN switchover feature is enabled the state of the Ethernet interface will be as

in the following table:

WAN/LAN Switchover

 The WAN/LAN switchover feature defines the state of the Ethernet port after the gateway is

powered on. By default, WAN/LAN Switchover is enabled. Learn more about the WAN/LAN

switchover feature.

 If set to Yes the gateway tries to connect to the Internet through the Ethernet connection, such

as an ADSL or cable modem. If a connection is unavailable, the port switches to LAN mode and acts as a LAN interface.

 Set to No to power on the Ethernet port as defined in the "mode" parameter.

MTU

 The MTU packet size: Value range 68 to 1500

IP address

 Sets the IP address of the gateway. By default the IP address is 192.168.1.1. You can change this

to any value you want.

Netmask

 Sets the netmask of the gateway. By default the netmask is set to 255.255.255.0. You can

change this to any value you want.

Enable DHCP server

 Enables the DHCP server. By default the DHCP server is enabled. (When the Ethernet port is in

LAN state). In case you want to use static IP addresses in your network you can disable the DHCP server.

DHCP range

 Sets the DHCP range for the DHCP server.

Lease time

 Lease time is configurable from 2 minutes up to 24854 days.

DNS 1 and DNS 2

When the gateway is in LAN mode the DNS fields will be empty by default. As a result the gateway itself will act as a DNS server. All the connected Ethernet devices will receive an DNS address which is equal to the gateway's IP address (by default 192.168.1.1) When the DNS server inside the gateway can't resolve the DNS request it will forward the request to the DNS server of the WAN connection.

When the gateway is in WAN mode the DNS address will be defined by the DHCP server of the internet provider. When the DNS fields are changed to another value than the other IP address will be used for the DNS server.

Reserved leases

 Lists the DHCP leases which are assigned to a certain MAC address.  Click Add to assign another lease and link a MAC address to an IP address.

Active leases

 Lists the active DHCP leases of the devices connected to the gateway.  Click Reserve to add the lease to the Reserve leases list.

Related Topics

WAN/LAN Switchover Feature

3G Connection Tab

The 3G Connection tab configures the gateway WWAN interface, as well as 3G and CDMA network settings.

It includes the following sections:

 Connection Status  General  Network Settings  PIN Settings  CDMA

Connection Status

The Connection status section provides information about the wireless network.

Operator Name

 Displays the name of the wireless operator the gateway is connected to.

Signal Strength

 Displays the received signal strength.

ECIO

 Displays the energy per chip over the interference. This is a typical way to indicate the quality of 3G

networks.

Technology

 Displays the technology used by the wireless operator.

Voice number

 Displays the voice number linked to the SIM card for 3G wireless operators.

General

The General section configures the WWAN interface on the gateway.

Enabled

 Enables and disables the WWAN (3G) interface,  Set to Yes (default) to enable the WWAN interface. If there is no Internet connection available on

the Ethernet interface, the device automatically connects to the network using the WWAN interface on startup.

 Set to No to disable the WWAN interface. The only network connection possible is through the

Ethernet interface.

IMPORTANT: When pass-through is active, data send to port 80 will always redirect to the WebGui of the gateway!

IMPORTANT: Installing one antenna with diversity enabled (set to Yes), results in poor or unstable performance. Make sure that diversity is disabled when there is only one antenna installed.

IMPORTANT: National roaming is always allowed on the gateway. The Connect while on roaming feature only has an impact on international roaming behavior.

IMPORTANT: Remote login to the gateway does not work when Only upon traffic is enabled.

Only upon traffic

 By default, the device is always connected to the network and can send and receive data in both

directions: Internet to gateway, and gateway to Internet. To protect the device from unauthorized access and ensure you only pay for the data you want to send, you can configure the device to connect only when it has data to transmit.

 Set to Yes to connect the device to the WWAN when it has data to send and disconnect it

immediately after. Note that when the device is disconnected, it is also unable to receive data. USRobotics recommends enabling this feature only if you are interested in one way, gateway-toInternet data flow.

 Set to No (default) to disable sending data only upon traffic.

Connect while on international roaming

 Manages international roaming settings for a device installed in a vehicle.  If set to Yes, international roaming is enabled.  If set to No, international roaming is disabled. USRobotics recommends disabling this feature to

prevent high roaming costs.

WWAN Div Antenna present

 Enables antenna diversity.  The base unit supports two antenna interfaces: WWAN with Diversity/GPS and WWAN Main. Using

both antennas ensures better reception in low coverage areas and increased throughput.

 If set to Yes, antenna diversity is enabled and both physical antennas must be installed.  If set to No, make sure only one antenna is connected to WWAN Main on the front panel.

WWAN Passthrough Mode

 By default, Passthrough Mode is disabled (set to No).  If set to Yes, the connected laptop receives an IP address from the wireless operator through the

gateway.

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US Robotics USR3520, USR803520, Courier USR3510, Courier USR803510 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual