Multitech MultiModem rCell User manual

MultiModem® rCell
Intelligent Wireless Router
User Guide

Copyright and Technical Support
2Multi-Tech Systems, Inc. MultiModem rCell User Guide
MultiModem® rCell User Guide
Intelligent Wireless Router
MTCBA-Xx-EN3
S000508B, Revision B
Copyright
This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All
rights reserved.
Copyright © 2012 by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied
warranties of merchantability or fitness for any particular purpose.
Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content
hereof without obligation of Multi-Tech Systems, Inc., to notify any person or organization of such revisions or changes. Check Multi-Tech’s
Web site or product CD for current versions of our product documentation.
Revision History
Revision
Date
Description
A
09/14/11
Initial Release
B
12/17/12
RoHS update.
Trademarks
Trademarks and registered trademarks of Multi-Tech Systems, Inc. include MultiModem, the Multi-Tech logo, and Multi-Tech. Windows is a
registered trademark of Microsoft Corporation in the United States and other countries. All other products or technologies referenced in
this manual are the trademarks or registered trademarks of their respective holders.
Contacting Multi-Tech
Knowledge Base
The Knowledge Base provides immediate access to support information and resolutions for all Multi-Tech products. Visit
http://www.multitech.com/kb.go.
Installation Resources
To download manuals, firmware, and software, visit http://www.multitech.com/setup/product.go.
Support Portal
To create an account and submit a support case directly to our technical support team, visit: https://support.multitech.com
Technical Support
Business Hours: M-F, 9am to 5pm CT
Country
By Email
By Phone
Europe, Middle East, Africa
[email protected]
+(44) 118 959 7774
U.S., Canada, all others
[email protected]
[phone] or [phone]
World Headquarters
Multi-Tech Systems, Inc.
2205 Woodale Drive
Mounds View, Minnesota 55112
Phone: [phone] or 800-328-9717
Fax: [phone]
Warranty
To read the warranty statement for your product, please visit: http://www.multitech.com/warranty.go

Contents
Multi-Tech Systems, Inc. MultiModem rCell User Guide 3
Contents
Chapter 1 –Introduction and Description..........................................................................................................6
Introduction ...........................................................................................................................................................6
Package Contents...................................................................................................................................................6
Related Documentation .........................................................................................................................................6
Safety Warnings .....................................................................................................................................................7
Ethernet Ports..................................................................................................................................................7
RF Safety ..........................................................................................................................................................7
Interference with Pacemakers and Other Medical Devices ............................................................................7
Internal Lithium Battery...................................................................................................................................8
Front Panel .............................................................................................................................................................8
Specifications .........................................................................................................................................................9
Power Draw..........................................................................................................................................................10
RF Specifications...................................................................................................................................................10
Antenna System for Cellular Devices ...................................................................................................................10
PTCRB Requirements for the Antenna ..........................................................................................................10
FCC Requirements for the Antenna...............................................................................................................10
GSM Antenna Requirements/Specifications .................................................................................................11
Chapter 2 - Installation...................................................................................................................................12
Inserting the SIM ..................................................................................................................................................12
Making the Connection........................................................................................................................................12
Mounting the Router............................................................................................................................................13
Setting the TCP/IP Address...................................................................................................................................13
Logging into Web Management Software ...........................................................................................................15
Configuring the Router.........................................................................................................................................15
Wizard Setup..................................................................................................................................................16
Verifying Signal Strength......................................................................................................................................17
Account Activation for Wireless Devices..............................................................................................................18
Resetting the Router ............................................................................................................................................18
Chapter 3 - Web Management Software .........................................................................................................19
Navigating the Web Management Software........................................................................................................19
Submit and Save & Restart ............................................................................................................................19
Screen Parts ...................................................................................................................................................20
Screen Buttons...............................................................................................................................................20

Contents
4Multi-Tech Systems, Inc. MultiModem rCell User Guide
Submenus ......................................................................................................................................................21
Web Management Software Screens...................................................................................................................21
IP Setup ................................................................................................................................................................22
Telnet Configuration ............................................................................................................................................24
IP Setup > HTTP Configuration.......................................................................................................................24
IP Setup > DDNS Configuration......................................................................................................................25
IP Setup > SNTP Configuration.......................................................................................................................26
IP Setup > Static Routes .................................................................................................................................27
IP Setup > Remote Configuration ..................................................................................................................28
PPP........................................................................................................................................................................29
PPP > PPP Configuration ................................................................................................................................29
PPP > Wakeup-on-Call ...................................................................................................................................31
PPP > Wakeup-On-Call Examples...................................................................................................................33
PPP > Power-On Configuration......................................................................................................................35
PPP > Modem Commands .............................................................................................................................35
Networks & Services ............................................................................................................................................36
Networks & Services > Network Configuration.............................................................................................36
Networks & Services > Service Configuration................................................................................................37
Packet Filters > Packet Filters...............................................................................................................................38
Packet Filter ...................................................................................................................................................38
Packet Filters > DNAT Configuration .............................................................................................................39
Packet Filters > DNAT Example......................................................................................................................40
Packet Filters > Advanced..............................................................................................................................41
GRE Tunnels..........................................................................................................................................................42
GRE Tunnels > GRE Tunnels ...........................................................................................................................42
GRE Tunnels > GRE Routes Configuration .....................................................................................................43
DHCP Server .........................................................................................................................................................43
DHCP Server > Subnet Settings......................................................................................................................43
DHCP Server > Fixed Addresses .....................................................................................................................44
IPSec .....................................................................................................................................................................45
IPSec > IPSec ..................................................................................................................................................45
Tools .....................................................................................................................................................................49
Tools > Tools ..................................................................................................................................................49
Tools > Firmware Upgrade.............................................................................................................................49
Tools > Load Configuration............................................................................................................................50
Tools > Save Configuration ............................................................................................................................50

Contents
Multi-Tech Systems, Inc. MultiModem rCell User Guide 5
Statistics & Logs....................................................................................................................................................51
Statistics & Logs > System Information .........................................................................................................51
Statistics & Logs > Ethernet ...........................................................................................................................52
Statistics & Logs > PPP ...................................................................................................................................53
Statistics & Logs > PPP Trace .........................................................................................................................54
Statistics & Logs > DHCP Statistics.................................................................................................................54
Statistics & Logs > GRE Statistics ...................................................................................................................54
Statistics & Logs > Modem Information ........................................................................................................55
Statistics & Logs > Service Status...................................................................................................................55
Statistics & Logs > TCP/UDP Client Live Log ..................................................................................................55
Statistics & Logs > TCP/UDP Server Live Log .................................................................................................55
Statistics & Logs > IPSec Live Log ...................................................................................................................56
Statistics & Logs > IPSec Log Traces...............................................................................................................56
Appendix A –Commonly Supported Subnets Reference Table.........................................................................57
Appendix B –Regulatory Information .............................................................................................................60
EMC, Safety, and R&TTE Directive Compliance ...................................................................................................60
47 CFR Part 15 Regulation Class B Devices...........................................................................................................60
EMC Requirements for Industry Canada..............................................................................................................61
Waste Electrical and Electronic Equipment Statement .......................................................................................61
WEEE Directive ..............................................................................................................................................61
Instructions for Disposal of WEEE by Users in the European Union .............................................................61
REACH Statement.................................................................................................................................................62
Registration of Substances ............................................................................................................................62
Substances of Very High Concern (SVHC)......................................................................................................62
Restriction of the Use of Hazardous Substances (RoHS)......................................................................................62
Information on HS/TS Substances According to Chinese Standards....................................................................63
Information on HS/TS Substances According to Chinese Standards (in Chinese)................................................64
依照中国标准的有毒有害物质信息 ...........................................................................................................64
Index .............................................................................................................................................................65

Chapter 1 –Introduction and Description
6Multi-Tech Systems, Inc. MultiModem rCell User Guide
Chapter 1 –Introduction and Description
Introduction
This User Guide describes the MultiModem® rCell intelligent wireless routers with an Ethernet II interface. The
MultiModem rCell Router is configured for one of three connectivity modes: always-on, wake-up on ring, or dial-
on demand. The always-on network connection automatically establishes a wireless data connection and allows
for around the clock surveillance, monitoring or real time data acquisition of any remote Ethernet device such as a
Web camera. If the data link is dropped in the event of poor reception or a complete loss of service, it will
automatically re-establish the data link. The wake-up on ring configuration allows the router to “wake up” and
initiate a connection when it detects an incoming ring. For security reasons, you can setup the router to wake up
based on a particular caller ID number. This configuration is ideal for reducing the costs associated with the
modem being online and available 24/7. When configured for dial-on demand, the router only accesses the
Internet when data is present. This configuration is ideal for sharing Internet access among networked PCs.
Model
Description
MTCBA-H3-EN3-P1
Quad-band HSPA 7.2
Package Contents
Unbundled package without accessories
Bundled package with accessories
1 router
1 Quick Start Guide
Note: You must supply mounting screws,
AC or DC power supply, and an
antenna.
1 router
1 antenna
1 Ethernet cable
1 power supply
1 Quick Start Guide
Note: You must supply mounting screws.
Note: If required, your wireless provider will supply the SIM card.
Related Documentation
AT Commands: The MultiModem MTCBA-H3-EN3 wireless router is configured using the HSPA-H3 AT Commands.
These commands are documented in the Reference Guide number S000505x.

Chapter 1 –Introduction and Description
Multi-Tech Systems, Inc. MultiModem rCell User Guide 7
Safety Warnings
Ethernet Ports
Caution: The Ethernet ports and command ports are not designed to be connected to a public
telecommunication network.
RF Safety
Follow any special regulations regarding the use of radio equipment due to the possibility of radio frequency (RF)
interference. Follow the safety advice given below.
Caution: Maintain a separation distance of at least 20 cm (8 inches) between the transmitter’s antenna and the
body of the user or nearby persons. The modem is not designed for or intended to be used in portable
applications within 20 cm (8 inches) of the user’s body.
Check your local standards regarding safe distances, etc.
●Operating your wireless device close to other electronic equipment may cause interference if the equipment
is inadequately protected. Observe any warning signs and manufacturers’ recommendations.
●Different industries and businesses have their own restrictions governing the use of cellular devices. Please
observe the local restrictions of the environment where you intend to operate the cell modem.
●Do not place the antenna outdoors.
Interference with Pacemakers and Other Medical Devices
Potential interference
Radiofrequency energy (RF) from cellular devices can interact with some electronic devices. This is
electromagnetic interference (EMI). The FDA helped develop a detailed test method to measure EMI of implanted
cardiac pacemakers and defibrillators from cellular devices. This test method is part of the Association for the
Advancement of Medical Instrumentation (AAMI) standard. This standard allows manufacturers to ensure that
cardiac pacemakers and defibrillators are safe from cellular device EMI.
The FDA continues to monitor cellular devices for interactions with other medical devices. If harmful interference
occurs, the FDA will assess the interference and work to resolve the problem.
Precautions for pacemaker wearers
If EMI occurs, it could affect a pacemaker in one of three ways:
●Stop the pacemaker from delivering the stimulating pulses that regulate the heart's rhythm.
●Cause the pacemaker to deliver the pulses irregularly.
●Cause the pacemaker to ignore the heart's own rhythm and deliver pulses at a fixed rate.
Based on current research, cellular devices do not pose a significant health problem for most pacemaker wearers.
However, people with pacemakers may want to take simple precautions to be sure that their device doesn't cause
a problem.
●Keep the device on the opposite the side of the body from the pacemaker to add extra distance between the
pacemaker and the device.
●Avoid placing a turned-on device next to the pacemaker (for example, don’t carry the device in a shirt or
jacket pocket directly over the pacemaker).

Chapter 1 –Introduction and Description
8Multi-Tech Systems, Inc. MultiModem rCell User Guide
Internal Lithium Battery
A lithium battery inside the device provides backup power for the time-keeping capability. The battery has an
estimated life expectancy of ten years. If data and time are incorrect after having the unit powered off, it may be
due to a weak battery or incorrect setup. Contact Multi-Tech if you suspect a failed battery.
Warning: You risk explosion if you replace the battery with the wrong type.
Note: Lithium cells and batteries are subject to the Provisions for International Transportation. Multi-Tech
Systems, Inc. confirms that the lithium batteries used in the Multi-Tech product(s) referenced in this
manual comply with Special Provision 188 of the UN Model Regulations, Special Provision A45 of the
ICAO-TI/IATA-DGR (Air), Special Provision 310 of the IMDG Code, and Special Provision 188 of the ADR
and RID (Road and Rail Europe).
Front Panel
The front panel contains nine LEDs and the SIM card holder. For details on inserting a SIM card, refer to Insert the
SIM Card into Holder.
LED
Indicator
Description
Power
Lit when there is power.
Status
Solid light when the rCell boots up, saves the configuration, restarts, or updates the firmware.
Blinks when the router is ready.
LNK
Link. Blinks when there is transmit and receive activity on the Ethernet link.
Shows a steady light when there is a valid Ethernet connection.
SPD
Speed. Lit when the Ethernet link is at 100 Mbps. If it is not lit, the Ethernet link is at 10 Mbps.
CD
Carrier Detect. Lit when data connection has been established.
LS
Link Status.
Permanently On: Powered on and connected, but not transmitting or receiving.
Slow flashing state (5 Seconds) Powered on searching for a connection.
Fast flashing state (0.3 seconds) Transmitting and receiving.
Signal
ALL OFF: Unit is off, not registered on network, or extremely weak signal (0 < = RSSI < 6).
1 Bar ON: Very weak signal (7 < = RSSI <14)
1 Bar and 2 Bar: Weak signal (15 < = RSSI <23)
1 Bar, 2 Bar, and 3 Bar ON: Good signal (24 <= RSSI > = 31)

Chapter 1 –Introduction and Description
Multi-Tech Systems, Inc. MultiModem rCell User Guide 9
Specifications
Features
MTCBA-H3-EN3
Standard
HSPA
Band, Frequency
HSPA/HSDPA/UMTS quad-band: 2100/1900/900 MHz;
GSM/GPRS/EDGE: 900/1800/900/850
Packet Data
HSDPA data service of up to 7.2 Mbps; HSUPA data service of up to 5.76 Mbps
Circuit-Switched Data
Up to 14.4K bps, non-transparent
Short Message Services (SMS)
Text & PDU, Point-to-Point (MO/MT), cell broadcast
Antenna Connector
RF Antenna: 50 ohm SMA (female connector)
SIM Connector
Standard 1.8 and 3V SIM receptacle
Power Connector
2.5mm miniature (screw-on)
Voltage
5 VDC
Physical Description
6.50” W x 1.59” H x 3.34” D 11.5 oz (16.51cm W x 4.04cm H x 8.48cm D 326g)
Operating Temperature1
-30° to +60° C
Storage Temp1
-40° to +85° C
Humidity
Relative humidity 20% to 90% noncondensing
Certifications
EMC Compliance
FCC Part 15 Class B
EN55022 Class B
EN55024
Radio Compliance
FCC Part 22, 24
RSS132,133
EN301 489-1
EN489-3 (-GP only)
EN301 489-7
EN301 489-24
AS/ACIF S042.1, S042.3
Safety
UL60950-1, 2nd Edition
IEC60950-1:2005 (Second Edition with
EN 60950-1:2006+A11:2009
Network
PTCRB
AT&T
1 UL Listed @ 40°C. Limited by power supply. UL Certification does not apply or extend to an ambient above 40°C
and has not been evaluated by UL for ambient greater than 40°C
UL has evaluated this device for use in ordinary locations only. Installation in a vehicle or other outdoor locations
has not been evaluated by UL. UL Certification does not apply or extend to use in vehicles or outdoor applications
or in ambient above 40° C.
Note: Radio performance may be affected by temperature extremes. This is normal. The radio is designed to
automatically fallback in class and reduces transmitter power to avoid damage to the radio. When this
occurs depends on the interaction of several factors, such as ambient temperature, operating mode,
and transmit power.

Chapter 1 –Introduction and Description
10 Multi-Tech Systems, Inc. MultiModem rCell User Guide
Power Draw
Multi-Tech Systems, Inc. recommends that you incorporate a 10% buffer into your power source when
determining product load.
Input Voltage= 5.0Volts
Idle Mode
Typical
Maximum
Peak Tx
Peak Rst
(Inrush
Current)
GSM850
Current(AMPS)
0.345
0.450
1.20
3.60
Watts
1.76
2.29
5.94
HSDPA
Current(AMPS)
0.345
0.760
1.01
1.40
Watts
1.76
3.84
5.03
Inrush Current (AMPS) (approx. 3ms duration)
2.66
RF Specifications
GSM 850
EGSM 900
GSM 1800
GSM 1900
Frequency RX
869 to 894 MHz
925 to 960 MHz
1805 to 1800 MHz
1930 to 1990 MHz
Frequency TX
824 to 849 MHz
880 to 915 MHz
1710 to 1785 MHz
1850 to 1910 MHz
RF Power Stand at
12.5% duty cycle
2W
2W
1W
1W
Antenna System for Cellular Devices
The cellular/wireless performance is completely dependent on the implementation and antenna design. The
integration of the antenna system into the product is a critical part of the design process; therefore, it is essential
to consider it early so the performance is not compromised. If changes are made to the certified antenna system
of the MultiModem, then recertification will be required by specific network carriers such as Sprint. The Antenna
System is defined as the UFL connection point from the MultiModem to the specified cable specifications and
specified antenna specifications.
PTCRB Requirements for the Antenna
There cannot be any alteration to the authorized antenna system. The antenna system must maintain the same
specifications. The antenna must be the same type, with similar in-band and out-of-band radiation patterns.
FCC Requirements for the Antenna
The antenna gain, including cable loss, for the radio you are incorporating into your product design must not
exceed the requirements at 850 MHz and 1900 MHz as specified by the FCC grant for mobile operations and fixed
mounted operations as defined in 2.1091 and 1.1307 of the FCC rules for satisfying RF exposure compliance. The
antenna used for transmitting must be installed to provide a separation distance of at least 20cm from all persons
and must not transmit simultaneously with any other antenna transmitters. User and installers must be provided
with antenna installation instructions and transmitter operating conditions to satisfying RF exposure compliance.

Chapter 1 –Introduction and Description
Multi-Tech Systems, Inc. MultiModem rCell User Guide 11
GSM Antenna Requirements/Specifications
Frequency Range
824 –960 MHz / 1710 –1990 MHz
Impedance
50 Ohms
VSWR
VSWR shall not exceed 2.0:1 at any point across the bands of operation
Typical Radiated Gain
3 dBi on azimuth plane
Radiation
Omni-directional
Polarization
Vertical
TRP/TIS
Including cable loss the total radiated power (TRP) at the antenna shall be no less
than +22/24.5 dBm for 850/1900 MHz respectively, and the total isotropic
sensitivity (TIS) at the antenna shall be no less than -99/101.5 dBm for 850/1900
MHz respectively.

Chapter 2 –Installation
12 Multi-Tech Systems, Inc. MultiModem rCell User Guide
Chapter 2 - Installation
Inserting the SIM
The router requires the power supply connection to begin operation. It also requires a SIM card (Subscriber
Identity Module) to operate on a GSM network. To install the SIM, do the following:
1. Open the SIM door by pressing down on the tab on the top of the door and prying it open.
Note: When changing a SIM, disconnect power.
2. Insert the SIM card into the card holder. The image above shows the correct SIM card orientation.
3. Verify that the SIM card fits into the holder properly and then close the cover.
Making the Connection
1. Connect an suitable antenna to the SMA connector. For antenna information, see Antenna System for Cellular
Devices.
2. Connect an Ethernet cable to the ETHERNET connector on the back of the router and to your computer either
directly or via a switch or hub.
3. Attach the appropriate interchangeable blade piece to the power supply module.
4. Screw-on the power lead from the power supply module into the power connection on the router.
5. Plug the power supply into your power source.

Chapter 2 –Installation
Multi-Tech Systems, Inc. MultiModem rCell User Guide 13
Mounting the Router
Before you mount your router to a permanent surface, verify signal strength, refer to Verify Signal Strength in this
Chapter.
The router can be panel mounted with screws spaced according to the measurement shown.
Note: Use either #6 or #8 pan head screws for all four mounts.
Setting the TCP/IP Address
Establish a TCP/IP connection at the pc so the PC can communicate with the router. Note that these steps are
based on Windows XP.
1. Click Start > Control Panel. Double-click Network Connections. The Network Connections screen displays.
2. Right-click Local Area Connection and select Properties.

Chapter 2 –Installation
14 Multi-Tech Systems, Inc. MultiModem rCell User Guide
The Local Area Connection Properties dialog box displays.
3. Select Internet Protocol [TCP/IP] and click Properties. The Internet Protocol (TCP/IP) Properties screen
displays.
Note: If the Internet Protocol (TCP/IP) Properties shows your current IP configuration, record this information.
You may want to restore the computer’s settings after configuring the router.
4. Enter TCP/IP Properties for a Fixed IP Address. Repeat these steps for each computer on your network
a. Select Use the following IP address.
b. Enter the computer’s IP Address. Example: 192.168.2.x.
Note: The x in the address stands for numbers 101 and up.
c. Enter the Subnet Mask. Example: 255.255.255.0
d. Enter the Default Gateway. Example: 192.168.2.1

Chapter 2 –Installation
Multi-Tech Systems, Inc. MultiModem rCell User Guide 15
Note: The computer’s settings must be in the same subnet range as the router.
The factory default settings for the router are:
IP Address: 192.168.2.1
Subnet Mask: 255.255.255.0
e. Select Use the following DNS server addresses.
f. Enter the IP Address for the Preferred DNS Server and click OK.Example: 205.171.3.65
g. Close the Local Area Properties screen by clicking OK.
Logging into Web Management Software
The router’s Web Management software allows you to configure the Ethernet interface. To login:
1. Verify that the Status LED is blinking to indicate that router is ready.
2. Open a web browser.
3. Enter the default Gateway Address, http://192.168.2.1. The Login window displays.
4. Enter the default User Name and Password and click Login. The default for both is admin. The Web
Management displays.
Note: User name and password are case-sensitive. Change the default password to improve router security.
See Authentication for more information.
Configuring the Router
Use Wizard Setup for basic router configuration. To setup additional features and functions, refer to Chapter 3,
Web Management Software. In the Web Management Software:
1. Click Wizard Setup.

Chapter 2 –Installation
16 Multi-Tech Systems, Inc. MultiModem rCell User Guide
The Wizard Setup screen displays.
Wizard Setup
A minimum router configuration is provided using the Wizard Setup. This provides a quick way to enter and save
information needed to create a connection to the Internet. The table below provides the information for the
minimum configuration.
IP Configuration
IP Address
The default is 192.168.2.1. To change it, simply enter your own IP address.
Mask
The default is 255.255.255.0
DNS
Enter the primary DNS IP address for the system. The default is 0.0.0.0
PPP Configuration
PPP
The default is disable. To connect to the Internet, you need to enable PPP.
Depending on the model, commands may need to be issued to the integrated
cellular modem before connecting to the wireless
service. To issue commands to the integrated
cellular modem, PPP must be disabled and telnet
port 5000 used.
Dial-on-
Demand
The default is disable.
Idle Time Out
Sets the amount of time the PPP link stays active before disconnecting. Setting
the value to zero causes the link to stay active
continuously.
Dial Number
Enter the dial number. This number connects you to the Internet.
For HSPA, the number is *99***1#.
APN
For HSPA models, enter the APN (Access Point Name). The APN is assigned by
your wireless service provider.
Init String
You can set up to 4 router initialization strings.

Chapter 2 –Installation
Multi-Tech Systems, Inc. MultiModem rCell User Guide 17
PPP Authentication
Authenticatio
n
T
y
p
e
Click the button corresponding to the authentication protocol you want to use
to negotiate with the remote peer. PAP, CHAP, or
PAP-CHAP.
Default = PAP-CHAP
Username
Enter the PPP Username. This name authenticates the remote peer.
Password
Enter the PPP Password. This password authenticates the remote peer.
1. Enter settings.
2. Click Submit.
3. Click Save & Restart to reboot.
Notes:
To save changes, click Submit on the bottom of most screens.
After saving changes, you need to restart the device for the changes to take effect. To restart, click Save & Restart
on the Menu bar. You can wait to restart until you finish changing settings on multiple pages.
Chapter 3 describes additional features and functions.
Access Point Names
Your wireless service provider assigns an APN (Access Point Name), but you may have to ask for it. An access point
is an IP network to which a MultiModem rCell Router connects. The Web Management software asks for the APN
on the Wizard Setup screen and the PPP screen.
Provider Fees
Your provider charges you for data usage. Check with your provider for rates and limitations. If you plan to use the
router for large amounts of data transfers, Multi-Tech recommends an unlimited data plan with your account.
Multi-Tech is not responsible for any charges relating to your cellular bill.
Verifying Signal Strength
To communicate directly with the cellular modem to verify signal strength, telnet to the modem.
Note: Ensure that the Status LED is blinking, indicating that the router is ready. Ensure that PPP is disabled
before verifying signal strength.
1. To Telnet to the modem. You can access the modem thru the Run icon or from the Command Prompt:
Click Start I Run icon. In the Open window, enter cmd and then press ENTER.
or
Click Start I All Programs I Accessories I Command Prompt
In the command window, type telnet 192.168.2.1 5000
At the Login prompt, type the default user name: admin (all lower-case). Press ENTER

Chapter 2 –Installation
18 Multi-Tech Systems, Inc. MultiModem rCell User Guide
At the Password prompt, type the default password: admin (all lower-case). Press ENTER
2. In the command window, type AT+CSQ . The router responds with the received signal strength (rssi).
Signal Strength –RSSI
10 –31
Sufficient
0 –9
Weak or Insufficient
99
Insufficient
Once you have a good signal for where you are going to place the router, either refer back to Optional
Mounting in this Chapter if you are permanently mounting your router or continue with Account Activation
for Wireless Devices.
Account Activation for Wireless Devices
Please refer to Multi-Tech’s Cellular Activation Web site at http://www.multitech.com/activation.go for
information on activating your cellular modem.
Note: If you need remote access to your MultiModem over the Internet for remote configuration, you need to
ensure that your wireless network provider has provisioned mobile terminated data and fixed or
dynamic public IP address in which they can configure the network to redirect any incoming connection
to that predefined IP.
Resetting the Router
To reset the router:
●Hold the Reset button in until the Status Light goes out. Then, release it.
This also sets the username and password back to admin and admin and the IP address to the default,
192.168.2.1.

Chapter 3 –Using the Web Management Software
Multi-Tech Systems, Inc. MultiModem rCell User Guide 19
Chapter 3 - Web Management Software
Use the Web Management software to configures your router’s Ethernet functions.
Navigating the Web Management Software
This section explains the menu structure and the navigation buttons of the router’s Web Management software.
Menu Bar
IP Setup: Sets up a General Configuration, HTTP, DDNS, SNTP, Static Routes, and Remote
Configuration.
PPP: Sets up the PPP authentication, dial-on-demand, router authentication, and Wakeup on
Call.
Networks & Services: Defines networks and services to make them available to other functions such as
allowed packet filters, static routes, remote configuration, DNAT, and GRE tunnels and
routes.
Packet Filters: Defines filter rules, DNAT configuration, and ICMP rules.
GRE Tunnels: Generic Routing Encapsulation (GRE). Defines the remote network and the tunnel
through which traffic is to be routed.
DHCP Server: Configures the DHCP server settings.
IPSec: Allows device to support LAN-to-LAN VPN tunneling with 3DES and AES 128-192-256
encryption support
Tools: Sets DDNS Force Update, displays DDNS Status, resets the modem, and provides
screens for Firmware Upgrade, Load Configuration, and Save Configuration.
Statistics & Logs: Shows statistics and logs maintained by the router.
Save & Restart: Saves your settings and reboots.
Help Index: Accesses the online Help text.
Submit and Save & Restart
To save changes, click Submit on the bottom of most screens.
After saving changes, you need to restart for the changes to take effect. To restart, click Save & Restart on the
Menu bar. You can wait to restart until you finish changing settings on multiple pages.

Chapter 3 –Using the Web Management Software
20 Multi-Tech Systems, Inc. MultiModem rCell User Guide
Screen Parts
Menu Bar Submenu Title Submenu List
Screen
Buttons
Screen Name
Screen Input
Area
Screen Buttons
Home: Click this button to return to the Home screen.
Wizard Setup: Click this button to display the Wizard Setup screen on which you can quickly set up
your MultiModem rCell Router with basic configuration settings.
Logout: Click this button to Logout and return to the login screen.
Help: Click this button to display the Help text.