MultiModem® GPRS
USB Wireless Modem
MTCBA-G-U-F4
User Guide
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Contents
Contents
Chapter 1 – Product Description and Specifications................................................................. 5
Product Description................................................................................................................................ 5
Features.................................................................................................................................................... 5
Safety........................................................................................................................................................ 6
General Safety ..............................................................................................................................................6
RF Interference Issues.................................................................................................................................6
Vehicle Safety ...............................................................................................................................................6
Maintaining the Modem ...............................................................................................................................7
Package Contents................................................................................................................................... 7
SIM Chip ........................................................................................................................................................7
General Specifications ........................................................................................................................... 8
Functions – GSM/GPRS Modes............................................................................................................. 8
Electrical Specifications......................................................................................................................... 8
RF Specifications.................................................................................................................................... 9
Antenna Specifications .......................................................................................................................... 9
GSM/EGSM Antenna Requirements/Specifications................................................................................9
Antennas Available from Multi-Tech Systems, Inc..................................................................................9
PTCRB Requirements Note........................................................................................................................9
FCC Requirements Note .............................................................................................................................9
Interfaces.................................................................................................................................................. 9
LED Interface ..............................................................................................................................................10
AT Command Reference Guides..........................................................................................................10
Chapter 2 – Activation and Installation...................................................................................... 11
Activating Your Wireless Account.......................................................................................................11
Phone Numbers for the Wireless Modem...............................................................................................11
Inserting the SIM Card into the Holder................................................................................................11
Connecting the Antenna and USB Cable............................................................................................11
Connecting Phone Handset (Optional) ...............................................................................................12
Attaching the Modem to a Flat Surface (Optional) ............................................................................12
Installing Modem Drivers ......................................................................................................................13
Obtaining Windows Drivers.......................................................................................................................13
Obtaining Linux Drivers .............................................................................................................................13
Installing the Drivers for Windows Vista..................................................................................................13
Installing the Modem Driver ......................................................................................................................18
Installing the Drivers in Windows Server 2008, XP, 2003.................................................................20
Installing the USB driver............................................................................................................................20
Chapter 3 – Using Your Wireless Modem.................................................................................. 27
Changing the GPRS Band.....................................................................................................................27
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Contents
Band Options Overview.............................................................................................................................27
Changing the GPRS Band ........................................................................................................................27
Determining the Phone Number for the Wireless Modem................................................................27
Examples of Useful AT Commands.....................................................................................................28
Verifying Signal Strength...........................................................................................................................28
Checking Network Registration and Roaming Status...........................................................................28
Checking the Modem’s Identity ................................................................................................................28
Establishing a Voice Call...........................................................................................................................29
Establishing a Circuit-Switched Data (CSD) Connection .....................................................................30
Answering a Circuit-Switched Data (CSD) Connection ........................................................................30
Using Short Message Services (SMS).................................................................................................31
Sending a Short Message to a Specified Number.................................................................................31
Writing a Message to Memory..................................................................................................................31
Sending a Message from Storage............................................................................................................31
Viewing a List of Stored Messages..........................................................................................................31
Reading a Stored Message.......................................................................................................................31
Deleting a Stored Message.......................................................................................................................31
SMS Examples............................................................................................................................................32
Setting up Internet Access ...................................................................................................................34
Connecting to the GPRS Network for Internet Access .........................................................................34
Before you Begin ........................................................................................................................................34
Setting the Access Point Name (APN)....................................................................................................35
Creating Your Dial-Up Connection in Windows Vista, XP, 2003, and 2000......................................36
Disconnecting..............................................................................................................................................36
Chapter 4 – Troubleshooting and Frequently Asked Questions............................................ 37
Troubleshooting Examples...................................................................................................................37
Situation A: The modem does not answer............................................................................................37
Situation B: The modem always returns «No carrier» when trying to originate a call......................38
Frequently Asked Questions................................................................................................................39
Appendix A - Environmental Information .................................................................................. 41
Waste Electrical and Electronic Equipment (WEEE).........................................................................41
Instructions for Disposal of WEEE by Users in the European Union..................................................41
REACH Statement..................................................................................................................................41
Restriction of the Use of Hazardous Substances (RoHS)................................................................42
China ROHS............................................................................................................................................43
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Chapter 1 – Product Description and
Specifications
Product Description
The Multi-Tech MultiModem GPRS is an external data/fax/voice wireless modem with a USB interface. It
supports mobile originated short message service (SMS) and mobile-terminated SMS. Designed for
global use, it offers standards-based quad-band GSM/GPRS Class 10 performance. This ready-to-deploy,
standalone modem allows developers to add wireless communication to products with a minimum of
development time and expense. The MultiModem GPRS is based on industry-standard open interfaces,
is fully type approved, and can be desktop or panel mounted.
Features
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GPRS Class 10 operation
Quad-band 850/900/1800/1900 MHz
GSM Class 1 and Class 2
Desktop or panel mounting
Short Message Services including text and PDU, point-to-point, cell broadcast
14.4K GSM circuit switched data
SMA antenna connector and SIM socket
Serial interface supports DTE speeds to 115.2K
AT command compatible
MNP2 V.42bis data compression
Numerous LEDs provide operational status
ME + SIM phone book management
Fixed dialing number
SIM Toolkit Class 2
SIM, network and service provider locks
Real time clock
Alarm management
UCS2 character set management
Packet data up to 85K bps
Embedded TCP/IP stack
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Chapter 1 – Product Description and Specifications
Safety
General Safety
The modem is designed for and intended to be used in fixed and mobile applications. “Fixed” means
that the device is physically secured at one location and is not able to be easily moved to another
location. “Mobile” means that the device is designed to be used in other than fixed locations.
Caution: Maintain a separation distance of at least 20 cm (8 inches) is normally maintained
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
body of the user.
RF Interference Issues
Follow all special regulations regarding the use of radio equipment due to the possibility of radio
frequency (RF) interference. Adhere to the following safety advice:
●
Switch off your wireless MultiModem when in an aircraft. The use of cellular telephones in an
aircraft may endanger the operation of the aircraft, disrupt the cellular network and is illegal. Failure
to observe this instruction may lead to suspension or denial of cellular telephone services to the
offender, or legal action or both.
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Switch off your wireless MultiModem when around gasoline or diesel-fuel pumps and before filling
your vehicle with fuel.
Switch off your wireless MultiModem in hospitals and any other place where medical equipment
may be in use.
Respect restrictions on the use of radio equipment in fuel depots, chemical plants or where blasting
operations are in progress.
There may be a hazard associated with the operation of your wireless MultiModem close to
inadequately protected personal medical devices such as hearing aids and pacemakers. Consult the
manufacturers of the medical device to determine if it is adequately protected.
●
Operation of your wireless MultiModem close to other electronic equipment may also cause
interference if the equipment is inadequately protected. Observe any warning signs and
manufacturers’ recommendations.
Vehicle Safety
●
Do not use your MultiModem while driving.
●
Respect national regulations on the use of cellular telephones in vehicles. Road safety always comes
first.
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If incorrectly installed in a vehicle, the operation of the MultiModem could interfere with the correct
functioning of vehicle electronics. To avoid such problems, be sure that qualified personnel install
the modem. Verification of the protection of vehicle electronics should be part of the installation.
The use of an alert device to operate a vehicle’s lights or horn on public roads is not permitted.
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Chapter 1 – Product Description and Specifications
Maintaining the Modem
Treat your wireless MultiModem with care. The suggestions below will help you enjoy this product for
many years.
●
Do not expose the wireless MultiModem to any extreme environment where the temperature is
above 50ºC or humidity is above 90% noncondensing.
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Do not attempt to disassemble the wireless MultiModem. There are no user serviceable parts inside.
Do not expose the wireless MultiModem to water, rain, or spilled beverages. It is not waterproof.
Do not place the wireless MultiModem alongside computer discs, credit or travel cards, or other
magnetic media. The phone may affect the information contained on discs or cards.
●
The use of accessories not authorized by Multi-Tech or not compliant with Multi-Tech's accessory
specifications may invalidate the warranty of the wireless MultiModem.
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In the unlikely event of a fault in the wireless MultiModem, contact Multi-Tech Tech Support.
Keep the modem in a safe place and out of the reach of children.
Try to remember your Unlock and PIN codes. Use the security features to block unauthorized use
and theft.
Package Contents
Unbundled Package
Modem with No Accessories
1 modem
Bundled Package
Modem with Accessories
1 modem
1 mounting bracket
1 Quick Start Guide
1 mounting bracket
1 USB cable
Note: You must supply a USB cable, 1 antenna
bracket screws, and an antenna.
4 rubber feet
1 Quick Start Guide
Note: You must supply bracket
screws.
SIM Chip
Your wireless service provider will supply the Subscriber Identity Module (SIM) configuration chip. The
SIM contains information specific to your wireless account and its features.
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Chapter 1 – Product Description and Specifications
General Specifications
General Specifications
Mechanical Dimensions & Weight
Connectors & Fasteners
4.3" L x 2.4" W x 0.94" H; 4.2 oz.
(11 cm x 6.1 cm x 2.4 cm; 119 g)
Antenna Connection type: SMA jack
Interface Connector: USB Type B
Phone Handset: Modular handset jack
SIM receptacle: Standard 3V SIM receptacle
-40° to +85°C
Operating Temperatures
Storage Temperatures
Humidity
-40° to +85°C
Relative humidity 20% to 90% noncondensing
Certifications and Safety
CE Mark, R&TTE
EMC: FCC Part 2, 15, 22, 24, EN 55022 & EN 55024
Safety: cUL, UL 60950, EN 60950
Network: PTCRB
Functions – GSM/GPRS Modes
Mode
Description
Standard
Quad Band 850/900/1800/1900 MHz
Interface
SMS
USB interface. USB Type B.
Mobile Originated (MO) and Mobile Terminated (MT) SMS Mode Text & PDU point to point.
Cell broadcast in accordance with GSM 07.05.
Data
Data circuit asynchronous, transparent, non-transparent up to 14,400 bits
Class 10. Coding schemes: CS1 to CS4.
GPRS
Electrical Specifications
Electrical Characteristics
Switching on/off
Voltage
The device is permanently powered when connected to the USB port.
Voltage Range: 5 to 32V DC
GND: 0V
Current Requirements
GSM/GPRS 850/900 GSM/GPRS 1800/1900
Parameters
Unit
Typ.
Typ.
Input average supply current in comm. mode at Pmax
Input average supply current in idle mode
360
300
mA
mA
30
30
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Chapter 1 – Product Description and Specifications
RF Specifications
GSM 850
EGSM 900
GSM 1800
GSM 1900
Frequency RX
Frequency TX
RF Power Stand
869 to 894 MHz
925 to 960 MHz
880 to 915 MHz
1805 to 1800 MHz
1710 to 1785 MHz
1930 to 1990 MHz
1850 to 1910 MHz
824 to 849 MHz
2W at 12.5% duty
cycle
2W at 12.5% duty
cycle
1W at 12.5% duty
cycle
1W at 12.5% duty
cycle
Antenna Specifications
GSM/EGSM Antenna Requirements/Specifications
Frequency Range:
Impedance:
VSWR:
824 – 960 MHz / 1710 – 1990 MHz
50 Ohms
<2.0:1
Typical Radiated Gain:
Radiation:
3 dBi on azimuth plane
Omni
Polarization:
Wave:
Vertical
Half Wave Dipole
Antennas Available from Multi-Tech Systems, Inc.
Description
Part Number
ANF1-1HRA
Hinged Right Angle 900/1800 MHz Cellular Modem Antenna
Hinged Right Angle 800/1900 MHz Cellular Modem Antenna
ANF2-1HRA
ANQB-1HRA
Hinged Right Angle 850/900/1800/1900 MHz Cellular Modem Antenna
PTCRB Requirements Note
There cannot be any alteration to the authorized antenna system. The antenna system must be the
same type with similar in-band and out-of-ban radiation patterns and maintain the same specifications.
FCC Requirements Note
The antenna gain, including cable loss, must not exceed 3.0 dBi at 1900 MHz / 1.6 dBi at 850 MHz for
mobile operating configurations and 7.0 dBi at 1900 MHz / 2.3 dBi at 850 MHz for fixed mounted
operations, as defined in 2.1091 and 1.1307 of the rules for satisfying RF exposure compliance.
Interfaces
The wireless MultiModem has several interfaces:
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LED function indicating operating status
External antenna (via SMA connector)
Serial and control link (via USB connector)
Microphone and speaker (via handset jack)
SIM card holder
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Chapter 1 – Product Description and Specifications
LED Interface
TD
RD
CD
LS
Transmit Data. Lit when modem is transmitting data.
Receive Data. Lit when modem is receiving data.
Carrier Detect. Lit when data connection has been established.
Line Status.
Continuous “on” state indicates that the wireless modem is not registered on the network.
Flashing state indicates registration on network.
Off state. Modem is off (not ready) or in download mode.
Terminal Ready. Commonly called “Data Terminal Ready.” This is a readiness signal from the PC.
Power. Indicates presence of DC power when lit.
TR
PWR
AT Command Reference Guides
AT commands for the GPRS USB wireless modem are published in a separate GPRS AT Commands
Reference Guide. You can find this guide on the Multi-Tech website.
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Chapter 2 – Activation and
Installation
Activating Your Wireless Account
Some Multi-Tech cellular modems have been pre-configured to operate on a specific cellular network,
such as Sprint and Verizon Wireless.
However, before you can begin to use the modem, you must set up a cellular data account with your
cellular network provider. Refer to Multi-Tech’s Cellular Activation website
Phone Numbers for the Wireless Modem
Every wireless modem has a unique phone number. Your wireless provider may give you the phone
number or the number might be on the SIM card. Wireless provider implementations may vary.
Inserting the SIM Card into the Holder
The wireless MultiModem requires a SIM card (Subscriber Identity Module) to operate on a GSM
network. To install the card:
1. Use a small screwdriver or similar tool to pry off the SIM cover.
2. Insert the SIM card into the holder.
3. Verify that the SIM card fits into the holder properly and then replace the cover.
Connecting the Antenna and USB Cable
1. Connect a suitable antenna to the SMA connector (See antenna specifications in Chapter 1).
2. Connect the Series B end of the USB cable to the modem and the other end to the PC.
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Chapter 2 – Activation and Installation
Connecting Phone Handset (Optional)
If you intend to use a phone handset, connect it to the MultiModem now.
Attaching the Modem to a Flat Surface (Optional)
To mount the wireless MultiModem:
1. Obtain mounting screws (two are needed) that are appropriate for the surface on which you will
mount the MultiModem. For example, one might use two 6-32 self-tapping screws 5/8” in length to
mount the unit in a truck to the wall of the cab behind the passenger’s seat.
2. Typically, the unit is mounted against a flat surface into which holes can be drilled. The mounting
holes (center-to-center) must be separated by 125 mm or 4 -15/16 inches.
3. Drill the mounting holes at the desired mounting location (if applicable).
4. Slide the mounting brackets into the corresponding slots on the back of the MultiModem chassis.
5. Attach the MultiModem with two screws to the mounting surface at the desired location on the
equipment.
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Chapter 2 – Activation and Installation
Installing Modem Drivers
This section describes how to install modem drivers.
The wireless MultiModem is compatible with Windows Operating Systems Vista/XP/2003/2000 and
Linux.
Obtaining Windows Drivers
You must install the wireless MultiModem USB driver in your computer’s program directory. You can
download the Windows USB drivers from the website:
A complete set of drivers for each operating system is organized into Vista and XP with either 32-bit or
64-bit processor. For 64-bit operating systems, go to Start I All Programs I Accessories I System Tools I
Computer and click on the System Properties button. Under System you will see System Type: 64-bit
Operating System.
Obtaining Linux Drivers
You must download the Linux Operating System drivers from:
Refer to the Readme file for the correct driver file and installation guide for your distribution/version of
Linux.
Installing the Drivers for Windows Vista
This section describes how to install both the USB driver and the modem driver.
Before You Begin
1. Ensure you have downloaded the proper driver from the Multi-Tech website and stored the driver
on your computer.
2. Power up your computer.
3. If you have not already done so, connect the modem’s USB cable to a USB port on the computer.
4. Windows detects that the new modem is present.
Installing the Driver for your TUSB3410 Serial Port
To install the USB driver:
1. Complete the steps in the section Before You Begin.
2. The Found New Hardware window opens, indicating that Windows needs to install driver software
for your TUSB3410 Serial Port.
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Chapter 2 – Activation and Installation
3. Click Locate and install driver software (recommended). A Windows installation wizard guides you
through the process of installing the driver.
4. On the next Wizard screen, click I don’t have the disc. Show me other options.
5. Select Browse my computer for driver software (advanced).
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Chapter 2 – Activation and Installation
6. At the Browse for driver software on your computer wizard screen, click Browse.
7. Browse to the Drivers folder on your computer where you stored the driver you downloaded. Then
select one of the following:
●
If installing on a 32-bit operating system, select the location of the Vista32 driver.
If installing on a Vista 64-bit operating system, select the location of the Vista64 driver.
●
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Chapter 2 – Activation and Installation
8. Click Next.
9. Windows can’t verify the publisher of this driver software dialog box opens.
10. Select Install this driver software anyway.
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Chapter 2 – Activation and Installation
11. The Installing driver software… wizard screen appears.
12. A window appears telling you that the software has been successfully installed.
13. Click Close.
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Chapter 2 – Activation and Installation
Installing the Modem Driver
To install the modem driver:
1. The Found New Hardware – MultiTech GSM Modem window appears.
2. Click I don’t have the disc. Show me other options. Click Next.
3. Click Browse my computer for driver software (advanced).
4. The dialog box “Windows can’t verify the publisher of this driver software” appears.
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Chapter 2 – Activation and Installation
5. Select Install this driver software anyway. The Installing driver software progress window appears.
6. The software for this device has been successfully installed window appears. Windows has finished
installing the driver software for this device: Multi-Tech Systems USB GSM_GPRS wireless Modem
7. Click Close. The installation of drivers is now complete.
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Chapter 2 – Activation and Installation
Installing the Drivers in Windows Server 2008, XP, 2003
This section describes how to install drivers for the operating systems Windows Server 2008, XP and
2003.
You need to install both a USB driver and a modem driver.
Installing the USB driver
To install the USB driver:
1. Connect the USB cable between the MultiModem and the PC.
2. In some situations the operating system displays a Found New Hardware Wizard window and asks:
Can Windows connect to Windows Update to search for software?
Select No, not this time. Then click Next.
3. The Found New Hardware Wizard window now displays the GSM Device.
4. Select Install from a list or specific location (Advanced), and then click Next.
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Chapter 2 – Activation and Installation
5. The wizard screen Please choose your search and installation options opens. Ensure that only
checkbox that is selected is Include this location in the search.
6. Browse to the Drivers folder on your computer where you stored the driver you downloaded. Then
select one of the following:
●
If installing on a 32-bit operating system, select the location of the Vista32 driver.
If installing on a Vista 64-bit operating system, select the location of the Vista64 driver.
●
7. Click Next.
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Chapter 2 – Activation and Installation
8. Please wait while the wizard searches for the GSM Modem. This window only appears briefly.
9. Please select the best match for your hardware for the list below.
10. Click Next.
11. A Windows Logo Testing window appears.
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Chapter 2 – Activation and Installation
12. At the Completing the Found New Hardware Wizard – GSM Device window.
Click Finish. Installation of the USB driver is now complete.
Installing the Modem Driver
1. If the Welcome to the Found New Hardware Wizard window asking – Can Windows connect to
Windows update to search for software? appears again.
2. Select No, not this time and then click Next.
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Chapter 2 – Activation and Installation
3. The Found New Hardware Wizard window appears for the MultiTech GSM Modem.
4. Select the Install from a list or specific location (Advanced) radio button. Then click Next.
The Please choose your search and installation options window appears.
5. Select the Include this location in the search is selected check box. Click Browse.
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Chapter 2 – Activation and Installation
6. Browse to the Drivers folder on your computer where you stored the driver you downloaded. Then
select one of the following:
●
If installing on a 32-bit operating system, select the location of the Vista32 driver.
If installing on a Vista 64-bit operating system, select the location of the Vista64 driver.
●
7. Click Next. The Please wait while the wizard searches for the GSM Modem message appears.
8. The Please select the best match for your hardware from the list below message appears:
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Chapter 2 – Activation and Installation
9. The final Windows Logo Testing window may appear depending on operating system settings. This
window pertains to the creation of a modem entity in the operating system that accommodates the
wireless USB MultiModem.
10. Click Continue Anyway. The Completing the Found New Hardware Wizard window appears.
11. Click Finish.
With the modem .inf file successfully installed, the entire software installation procedure for the
MultiModem is complete.
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Chapter 3 – Using Your Wireless
Modem
Changing the GPRS Band
All MultiModem GPRS-F4 wireless modems support quad band (850/1900/900/1800 MHz). In reality,
they operate like dual, dual-band modems. In other words, they can be configured for 850/1900 or
900/1800 MHz. They do not automatically seek the local area frequency.
Band Options Overview
The GPRS-F4 wireless modems can be ordered with a default band of 850/1900 MHz or 900/1800 MHz.
850/1900 MHz – The wireless modem defaulting to 850/1900 MHz is identified with F4 in the product
ordering number. Example: MTCBA-G-F4. This build option is most commonly used in North American.
900/1800 MHz – The wireless modem defaulting to 900/1800 MHz is identified with F4-ED in the
product ordering number. Example: MTCBA-G-F4-ED. This build option is most commonly used in
Europe.
Changing the GPRS Band
If you want to change the band—because, for example, you are changing the geographical area in which
you use your modem—use the +WMBS AT Command.
To change the GPRS band:
1. To open HyperTerminal, click Start. Then select Programs > Accessories > Communications >
HyperTerminal.
2. When the command window opens, type AT+WMBS=<Band><Param>.
where <Band> can be:
4 = Dual-band mode 850/1900MHz
5 = Dual-band mode 900/1800MHz
where <Param> can be:
0 = The modem will have to be reset to start on the specified band(s). This is the default.
1 = The modem restarts immediately on the specified band(s).
3. Press Enter. For example:
AT+WMBS=4,0. Press Enter.
Determining the Phone Number for the Wireless Modem
Every wireless modem will have its own unique phone number. The wireless modem’s phone number
may simply be told to the subscriber or be on the SIM. Wireless provider implementations may vary.
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Chapter 3 – Using Your Wireless Modem
Examples of Useful AT Commands
Using HyperTerminal
In order to verify signal strength and roaming status, you must use a terminal application such as
HyperTerminal. To open this program in Windows XP, go to Start > All Programs > Accessories >
Communications > HyperTerminal. Other Windows operating systems have similar paths to
HyperTerminal. See your system’s online Help if you cannot find it.
Using AT Commands
AT commands can be used to operate, configure, and query your modem. You can find a reference
guide to the GPRS commands on the Multi-Tech website.
The following two commands let you query signal strength and roaming status.
Verifying Signal Strength
1. Using HyperTerminal, type AT+CSQ
2. The modem responds with the received signal strength (rssi).
RSSI ranges from 0 to 31.
Signal Strength Verification – RSSI
21 – 31
11 - 20
0 - 10
99
Exceptional
Average
Weak or Insufficient
No signal
3. The modem responds with the channel bit error rate (ber).
BER ranges from 0 to 7 (Seven is the highest error rate).
Checking Network Registration and Roaming Status
This section describes how to verify that the wireless MultiModem has been registered on the wireless
network.
1. Using HyperTerminal, type AT+CREG?
2. The modem responds in one of the following ways:
Network Registration Verification
Value
0,0
0,1
Network Registration Status
The modem is not registered on any network
The modem is registered on the home network
The modem is registered on a network and it is roaming
0,5
Note: If the modem indicates that it is not registered, verify the signal strength to determine if the
problem is the strength of the received signal.
Checking the Modem’s Identity
Use the ATI command (Note: This command is illustrated using the capital letter i after AT)
●
Type ATI0 (Note: The command ends in a zero)
The manufacturing data displays. For example: Wavecom Modem Multiband G850 1900
Type ATI3
●
The software version displays. For example: 651_09gg...
Type ATI6
●
Displays modem data features. For example: data rates, data modes, fax classes.
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Chapter 3 – Using Your Wireless Modem
Establishing a Voice Call
To establish a voice call:
1. Enter PIN code, if your wireless provider requires one.
a. Type AT+CPIN=1234
b. Responses include:
OK (PIN Code accepted)
+CME ERROR : 16 (Incorrect PIN Code)
+CME ERROR : 3 (PIN already entered [with +CMEE : 1 mode])
2. Initiate a voice call.
a. Type ATD1234;
(Note: Don’t forget the semicolon “;” at the end. This stands for voice calls)
b. Responses include:
OK (Communication established)
CME ERROR : 11 (PIN Code not entered [with +CMEE : 1 mode])
CME ERROR : 3 (Operation not allowed)
3. Initiate an emergency call.
a. Type ATD112; (Note: Don’t forget the semicolon “;” at the end. This stands for voice calls)
b. Responses include: OK
4. Hang up.
a. Type ATH
b. Responses:OK
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Chapter 3 – Using Your Wireless Modem
Establishing a Circuit-Switched Data (CSD) Connection
A Circuit-Switched Data Connection (CDC) makes the wireless modem work similar to a regular analog
modem. You must have CSD service in order to make a CSD call.
Note: Your cellular provider charges airtime usage for these connections.
1. To establish a Connection:
a. Open HyperTerminal or a terminal application.
b. Type ATD<phone number>
Notes:
●
The phone number you are calling is entered between the displayed brackets. Do not type
additional brackets. For example, type only ATD 8585551212. 8285551212 between the brackets.
●
This command tells the modem to inform the wireless network that you are initiating a CSD modem
call. If you are dialing to another modem, the remote modem should answer and a connection
between the two modems will be established. If you include a semi-colon (;) at the end of the dialing
string, the modem will instead initiate a Voice call to the phone number dialed.
2. To disconnect:
a. Type: +++
b. Wait about two seconds to see an OK response.
c. Type ATH
Note: +++ is the escape sequence and ATH is the Hang-up command.
Answering a Circuit-Switched Data (CSD) Connection
A Circuit-Switched Data Connection makes the wireless modem work similar to a regular analog modem.
You must have CSD service in order to answer a CSD call.
There are three phone numbers for GSM: the voice number, the data number, and the fax number. All
are provided by the carrier. To answer a call:
1. To establish a connection, call into the modem by dialing the data number provided by your carrier.
2. To answer a call, when you see the RING responses on the terminal screen, enter ATA <cr>.
3. To set auto-answer:
a. Enter ATS0=x
where x is the number rings
This sets the modem to auto-answer. The call will be answered after the number of rings
entered. .
b. Then call into the number provided to you by the carrier.
4. To disconnect:
a. Type +++
b. Wait about one second to see an OK response.
c. Type ATH
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Chapter 3 – Using Your Wireless Modem
Using Short Message Services (SMS)
Sending a Short Message to a Specified Number
1. Type AT+CMGS="8585551212" <press Enter>
2. Then type your message: Please call me soon. <press ctrl Z>
3. The modem may respond with +CMGS:<mr> OK
Writing a Message to Memory
You can store a message to send it at a later date.
1. Type AT+CMGW="8585551212" <press Enter>
2. Type the message. <press ctrl Z>
3. The modem may respond with +CMGW: 4 OK (The message is stored in the index as message 4.)
Sending a Message from Storage
1. Type AT+CMSS=x,"8585551212" <press Enter>
2. The modem may respond with +CMSS: 1 OK (The transmission is successful. One SMS message is
sent.)
Note: The x represents an index location.
Viewing a List of Stored Messages
1. Type AT+CMGL=x <press Enter>
where x can be:
REC UNREAD" Shows received unread messages.
"REC READ" Shows received read messages.
"STO UNSENT" Shows stored unsent messages.
"STO SENT" Shows stored sent messages.
"ALL" Shows messages.
2. The modem will respond AT+CMGL: 1,"REC UNREAD","8585551212",1...
3. The modem will continue until all UNREAD messages, numbers, and index number are listed.
Reading a Stored Message
1. Type AT+CMGR=x <press Enter>
where x is an index location
2. The modem may respond with +CMGR: "REC READ", "8585551212", ......
Deleting a Stored Message
1. Type AT+CMGD=x,n <press Enter>
where n can be:
0 Delete message at location <include the index number>
1 Delete all READ messages.
2 Delete all READ and SENT messages.
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Chapter 3 – Using Your Wireless Modem
3 Delete all READ, SENT, and UNSENT messages.
4 Delete ALL messages.
If you want to delete one message at a time, do not enter a value for n.
2. The modem will respond OK.
Note: The x represents an index location. The n stands for the type of messages to delete.
SMS Examples
Send Example
Send an SMS message to another SMS compatible device
at+cmgf=1 (set to text mode)
OK
at+cpms="SM","SM" (set memory storage when writing and sending SMS messages)
+CPMS: 0,50,0,50
OK
at+cmgs="7632273726" (send message to the number specified in quotes)
> TEST message ONE. (Type message after the > symbol and hit <CTRL + Z> to send the message)
+CMGS: 52
OK
Receive Examples
Receive Example 1: Receive SMS messages in text mode by saving to SIM memory – Notification via +CMTI
unsolicited response code:
at+cmgf=1 (set to text mode)
OK
at+csms=0 (set to Phase 1)
+CSMS: 1,1,1
OK
at+cnmi=2,1,0,0,0 (set to display +CMTI indication when SMS is received)
OK
at+cpms="SM","SM" (set the read and write storage of SMS to SIM)
+CPMS: 0,50,0,50
OK
+CMTI: "SM",1 (indication that message was received and stored to SIM location 1)
at+cmgr=1 (read message stored in location 1)
+CMGR: "REC UNREAD","+17632273726",,"06/03/17,13:55:22+00"
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Chapter 3 – Using Your Wireless Modem
TEST1
OK
at+cmgd=1 (delete message that is stored in location 1)
OK
Receive Example 2: Receive SMS message in text mode by directly routing the received message to the TE
through the serial port using Phase 2:
at+cmgf=1 (set to text mode)
OK
at+csms=0 (set to Phase 2)
+CSMS: 1,1,1
OK
at+cnmi=2,2,0,0,0 (set to receive SMS and route directly to TE)
OK
+CMT: "+17632273726",,"06/03/17,13:59:18+00" (message received and directly routed to TE)
TEST2
Receive Example 3: Receive SMS message in text mode by directly routing the received message to the TE
through the serial port using Phase 2+:
at+cmgf=1 (set to text mode)
OK
at+csms=1 (set to Phase 2+)
+CSMS: 1,1,1
OK
at+cnmi=2,2,0,0,0 (set to receive SMS and route directly to TE)
OK
+CMT: "+17632273726",,"06/03/17,14:01:17+00" (message received and directly routed to TE)
TEST3
at+cnma (acknowledge that message has been received)
OK
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Chapter 3 – Using Your Wireless Modem
Setting up Internet Access
You can setup Internet access in Windows Dial-Up Networking (DUN) of the computer that the wireless
modem is serving. Setup procedures vary according to the type of wireless service provider used.
To access Dial-Up Networking on your PC, from the Start button, select Settings > Network
Connections.
●
For GSM-without-GPRS, a circuit-switched data connection is used. The user can set up DUN to
make a conventional V.32 modem connection to any terminating modem at the other end. The
phone number specified in DUN can be one supplied by the wireless service provider or another
phone number related to a different dialup modem service (e.g., a dialup modem service phone
number from any commercial or private dialup network).
●
For GSM-with-GPRS, a single DUN number is generally used by all of a wireless provider’s
subscribers throughout its area of coverage; regional, nationwide, continental, etc. Rather than
being a literal phone directory number, as in conventional DUN, this is a code that gives the modem
Internet access.
Connecting to the GPRS Network for Internet Access
After you have inserted the SIM card and the modem is ready for use, you can establish an Internet
connection through a Windows dial-up session.
Note that your wireless provider will charge you for data usage.
Before you Begin
Before you begin, please note the following.
●
●
The GPRS modem has an active SIM card and must have GPRS services
The modem must be getting a proper signal and be showing a network registration through the
wireless provider’s network
●
●
You must have a PC running Windows Vista, XP, or 2003 with the Multi-Tech drivers installed for
your particular model
The following instructions are for Windows XP SP2 and Windows 2003. Every PC may have slight
differences which may cause the instructions to be different. Use these instructions as a guide to
help you understand what is required to set up an Internet connection through your wireless service
provider for all operating systems.
●
Cellular providers provide Internet services as part of your service plan. Multi-Tech recommends
that if you plan on using large amounts of data, to sign up for an unlimited data service plan with
your provider. Multi-Tech Systems, Inc. will not be responsible for any charges on your cellular bill. If
you have any questions about billing, service plans, service charges, etc., please contact your
provider for more information.
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Chapter 3 – Using Your Wireless Modem
Setting the Access Point Name (APN)
So that your GPRS wireless modem can connect to your provider’s network, you must tell the modem
the Access Point Name (APN) to which it will connect. The APN is a server name that your account is
setup on with your provider. Your provider gives you the APN. Well-known APNs include:
●
●
AT&T: PROXY, or INTERNET, or PUBLIC
T-Mobile: INTERNET2.VOICESTREAM.COM, or INTERNET3.VOICESTREAM.COM, or
WAP.VOICESTREAM.COM
●
Rogers AT&T of Canada: INTERNET.COM
To set the APN:
1. From the Start button, select Control Panel.
2. In the Control Panel, double-click Phone and Modem Options.
3. The Phone and Modem Options window appears. Select the Modems tab.
4. On the Modems tab, select the Multi-Tech wireless modem listed in the table and click Properties.
5. A Properties window for your modem opens. Select the Advanced tab.
6. From the Extra Settings group, in the Extra initialization commands text box, type:
AT+CGDCONT=1,”IP”,”<APN>”
where <APN> is the correct APN for your account.
For example:
AT+CGDCONT=1,”IP”,”ISP. AT&T”
7. Click OK to close the modem Properties window.
8. Click OK to close the Phone and Modem Options window.
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Chapter 3 – Using Your Wireless Modem
Creating Your Dial-Up Connection in Windows Vista, XP, 2003, and 2000
1. From the Start button, select Control Panel.
2. In the Control Panel, double-click Network Connections. The Network Connections window opens.
3. In the Network Tasks group, select Create a new connection.
4. The New Connection Wizard opens. The wizard helps you setup your Internet connection. Click
Next.
5. On the Network Connection Type window, select Connect to the Internet, and click Next .
6. On the Getting Ready window, select Set up my connection manually, and click Next.
7. On the Internet Connection window, select Connect using a dial-up modem. Click Next.
Note: After clicking on Next, you may or may not be asked to select which modem to use. If you
have more than one modem installed in your PC, you will be required to select the proper modem
to use. If asked, please select the Multi-Tech wireless modem that has been installed.
8. On the Connection Name window in the ISP Name box, type a name for your new connection. Click
Next .
9. On the Phone Number to Dial window, type in the number that specifies to the modem to connect
to your provider’s Internet service.
For GPRS modems, type *99***1#. Then click Next.
10. On the Connection Availability window, specify if this connection is for anyone’s use or for your use
only by checking the appropriate button. Click Next.
11. On the Internet Account Information window, type the user name and the password for your
account. In many cases, a user name and a password are not required, but some wireless providers
require it. Check with your provider to see if they are needed.
Check the following two options if you would like them activated:
●
Check the box if you want this account name and password to be used by everyone.
●
Check the box if you want this as your default Internet connection. Then click Next.
12. On the Completing the New Connection Wizard window, you last task is to place a check in the box if
you would like to add a shortcut to your desktop. Then click Finish.
13. A Connection window displays on your desktop. Click the Properties button on the bottom of this
window.
14. The Properties window will open for you to make your connection. Important: Make sure that Use
dialing rules is not selected, and then click OK.
15. Once back at your Connection window, click the Dial button at the bottom of the window to start
the connection.
16. The connection will now tell the modem to connect to your provider’s Internet service. Once
connected, the connection status icon appears in the system tray.
Disconnecting
1. To disconnect, right click on the connection icon in the system tray.
2. Select Disconnect.
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Chapter 4 – Troubleshooting and
Frequently Asked Questions
Troubleshooting Examples
Before calling the Multi-Tech Technical Support, check the following connections:
●
●
●
●
●
●
The right antenna is connected to the modem
The serial cable connection is correct
The power is connected correctly and the power lights on the modem are on
Verify your signal strength
Verify your network registration
Use the following situation examples to troubleshoot the modem not answering and the modem
returning a No Carrier message.
Situation A: The modem does not answer
If the wireless MultiModem does not answer through the serial link upon an attempted transmission of
data or voice signals, see the table below for possible causes and solutions.
Solutions for ‘no connection through serial link’ situation
If the modem Then ask …
returns …
Action
(nothing)
Is the communication program
properly configured?
In communications program, verify that modem
parameters have been set to the values shown here:
Data bits = 8
Parity = none
Stop Bits = 1
Baud = 115200 bps
Close any such application program.
Is another program interfering
with the communication program?
Is the modem set to autoanswer?
Type ATS0=1 (to set to auto answer on the first ring)
Type ATA (to set to manual answer)
Is the communication program
receiving RING responses?
Type ATS0=1 (to set to auto answer on the first ring)
Type ATA (to set to manual answer)
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Chapter 4 – Troubleshooting and Frequently Asked Questions
Situation B: The modem always returns «No carrier» when trying to
originate a call
Solutions for “no carrier” message
If the modem Then ask …
returns …
Action
no carrier
Is the selected bearer type
Type AT+CEER to view the extended error code (see
“Error Results Codes" in the AT Command guide).
(esp. for data supported by the called party?
communicatio
n)
Be sure that the selected bearer type is supported by
the called party.
Is the selected bearer type
supported by the network?
Be sure that the selected bearer type is supported by
the network.
If no success, try bearer selection type: AT+CBST=0,0,3
Be sure SIM card is available for data/fax calls.
no carrier
(esp. for voice
communicati
on)
Be sure that the semicolon character (“;”) is typed
immediately after the phone number in the AT
command; e.g., ATD######;
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Chapter 4 - Troubleshooting and Frequently Asked Questions
Frequently Asked Questions
Which providers can I use?
●
Two major providers are T-Mobile and AT&T.
Does this modem support High-Speed Circuit-Switched Data (HSCSD)?
●
●
●
●
No, our GSM/GPRS modems do not support HSCSD.
The modem is answering, but seems to not be doing anything?
The modem is answering in voice mode.
If you are trying to make a data call, make sure the account has CSD service. You will also need the
data number (separate number from the main phone number that is provided by the provider).
I am trying to make a data connection by dialing from my wireless modem to an analog modem. Why
does the analog modem answer and send tones, but never connect?
●
●
To make a data call you must use the ATD<number> command.
Make sure the account has CSD service.
How do I get the voice portion to work so I can talk to others using the wireless modem?
●
●
You will need a cable that has the speaker pins connected to a speaker and microphone.
We have a “Y” cable that splits out to a RJ9 connector that can be used to plug into the receiver of a
handset.
●
‘ATD<number>;’ will originate a voice call.
How do I make an Internet connection to my dial-up ISP?
●
●
Make sure you have CSD service.
Create a dial-up connection to the ISP’s access number, then use your account username and
password and choose the wireless modem as the device.
How does faxing work?
●
●
GPRS modems support Class 1 and Class 2 Group 3 faxing.
You will need fax services setup on your account. You should receive a separate phone number for
fax just like voice and data, and you must call the fax number for the modem to receive a fax.
●
You will also need fax software (we do not have working software). WinFax Version 10 has been
tested with success.
I can’t make outgoing calls. I just receive a NO CARRIER response.
●
●
Make sure the antenna is connected and SIM is inserted correctly.
Check signal and registration: ‘AT+CSQ’ (10-31 is good), ‘AT+CREG?’ (0,1 is registered & 0,5 is
roaming).
●
Check NO CARRIER reason with ‘AT+CEER’. Look up error code in Reference Guide.
The modem will not answer.
●
●
●
To have modem autoanswer, set modem with ‘ATS0=1’ and ‘AT&W’ to store the setting.
Send ‘ATA’ to the modem once the RING is indicated on the terminal screen.
You may need to set modem to ignore DTR, ‘AT&D0’, if you aren’t providing DTR.
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Chapter 4 – Troubleshooting and Frequently Asked Questions
I am trying to make a GPRS connection using a Windows dial-up session. It connects and then
immediately disconnects.
●
●
●
Make sure the APN is configured in the modem correctly (The APN is provided by the provider).
Check the APN with ‘AT+CGDCONT?’ To make sure it is correct.
If no APN is inserted, then insert the correct APN using the command
‘AT+CGDCONT=1,”IP”,”<APN>”’ with HyperTerminal or add it into the “Extra Initialization
Commands:” in the modem’s properties.
●
Make sure the APN is correct for your account.
When I try to establish a GPRS connection using Windows dial-up I get an error: “Hardware Failure”.
●
●
Check the modem to make sure it is installed and can be queried in the modem’s properties.
Make sure the com port is not being held by another application. Look for the TR light indication. If it
is on, most likely another application is holding onto the port.
●
●
Make sure the dial-up connections maximum speed matches the modem’s properties maximum
port speed.
Try rebooting the PC.
What is the maximum amount of characters I can use to send an SMS message?
●
●
Supports up to 160 characters maximum.
In PDU mode using 7-bit, the modem still supports 160 characters, but in 8-bit the modem will
support only 70 characters.
After changing the +CNMI, +CSCA, or +CSMP command values, the modem doesn’t store them.
When changing these command values, you must use the +CSAS command to store the changes.
How do I send an SMS message to an email account?
●
●
When sending an SMS message to an email account, you must use a designated routing number that
will tell the SMS server to route your message to an email account. Here are the numbers that we
are aware of at this time:
AT&T = “0000”
T-Mobile = “500”
Here is an example of how to send an SMS message to an email account:
AT+CMGS=”0000”
> [email protected] My message goes here. <ctrl +Z>
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Appendix A - Environmental
Information
Waste Electrical and Electronic Equipment (WEEE)
The WEEE directive places an obligation on EU-based manufacturers, distributors, retailers and
importers to take-back electronics products at the end of their useful life. A sister Directive, ROHS
(Restriction of Hazardous Substances) complements the WEEE Directive by banning the presence of
specific hazardous substances in the products at the design phase. The WEEE Directive covers all Multi-
Tech products imported into the EU as of August 13, 2005. EU-based manufacturers, distributors,
retailers and importers are obliged to finance the costs of recovery from municipal collection points,
reuse, and recycling of specified percentages per the WEEE requirements.
Instructions for Disposal of WEEE by Users in the European Union
The symbol shown below is on the product or on its packaging, which indicates that this product must
not be disposed of with other waste. Instead, it is the user’s responsibility to dispose of their waste
equipment by handing it over to a designated collection point for the recycling of waste electrical and
electronic equipment. The separate collection and recycling of your waste equipment at the time of
disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects
human health and the environment. For more information about where you can drop off your waste
equipment for recycling, please contact your local city office, your household waste disposal service or
where you purchased the product.
REACH Statement
Registration of Substances:
After careful review of the legislation and specifically the definition of an “article” as defined in EC
Regulation 1907/2006, Title II, Chapter 1, Article 7.1(a)(b), it is our current view Multi-Tech Systems, Inc.
products would be considered as “articles”. In light of the definition in § 7.1(b) which requires
registration of an article only if it contains a regulated substance that “is intended to be released under
normal or reasonable foreseeable conditions of use,” our analysis is that Multi-Tech Systems, Inc.
products constitute nonregisterable articles for their intended and anticipated use.
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Appendix A - Environmental Information
Substances of Very High Concern (SVHC):
Per the candidate list of Substances of Very high Concern (SVHC) published October 28, 2008 we have
reviewed these substances and certify the Multi-Tech Systems, Inc. products are compliant per the EU
“REACH” requirements of less than 0.1% (w/w) for each substance.
If new SVHC candidates are published by the European Chemicals Agency, and relevant substances have
been confirmed, that exceeds greater than 0.1% (w/w), Multi-Tech Systems, Inc. will provide updated
compliance status.
Multi-Tech Systems, Inc. also declares it has been duly diligent in ensuring that the products supplied are
compliant through a formalized process which includes collection and validation of materials
declarations and selective materials analysis where appropriate. This data is controlled as a part of a
formal quality system and will be made available upon request.
Restriction of the Use of Hazardous Substances (RoHS)
Multi-Tech Systems, Inc.
Certificate of Compliance
2002/95/EC
Multi-Tech Systems, Inc. confirms that this product now complies with the chemical concentration
limitations set forth in the directive 2002/95/EC of the European Parliament (Restriction Of the use of
certain Hazardous Substances in electrical and electronic equipment - RoHS)
These Multi-Tech Systems, Inc. products do not contain the following banned chemicals:
Lead, [Pb] < 1000 PPM
Mercury, [Hg] < 1000 PPM
Hexavalent Chromium, [Cr+6] < 1000 PPM
Cadmium, [Cd] < 100 PPM
Polybrominated Biphenyl, [PBB] < 1000 PPM
Polybrominated Diphenyl Ether, [PBDE] < 1000 PPM
Notes:
1. Lead usage in some components is exempted by the following RoHS annex; therefore, higher lead
concentration could be found.
a. Lead in high melting temperature type solders (i.e., tin-lead solder alloys containing more than
85% lead).
b. Lead in electronic ceramic parts (e.g., piezoelectronic devices).
42
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Appendix A - Environmental Information
China ROHS
依照中国标准的有毒有害物质信息
根据中华人民共和国信息产业部 (MII) 制定的电子信息产品 (EIP)
标准－中华人民共和国《电子信息产品污染控制管理办法》（第 39 号），也称作中国
RoHS，下表列出了 Multi-Tech Systems Inc. 产品中可能含有的有毒物质 (TS) 或有害物质 (HS)
的名称及含量水平方面的信息。
有害/有毒物质/元素
汞
铅
(PB)
镉
(CD)
六价铬
(CR6+)
多溴联苯
(PBB)
多溴二苯醚
成分名称
(Hg)
(PBDE)
O
O
O
O
O
O
印刷电路板
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
电阻器
电容器
O
铁氧体磁环
继电器/光学部
件
O
O
O
O
O
O
IC
O
O
O
O
O
O
O
O
O
O
O
O
二极管/晶体管
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
振荡器和晶振
调节器
O
O
O
O
电压传感器
变压器
扬声器
O
O
O
O
O
O
O
O
O
O
O
O
连接器
LED
螺丝、螺母以及
其它五金件
X
O
O
O
O
O
O
O
O
O
O
O
交流-直流电源
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
软件/文档 CD
手册和纸页
底盘
X
表示所有使用类似材料的设备中有害/有毒物质的含量水平高于 SJ/Txxx-2006
限量要求。
O
表示不含该物质或者该物质的含量水平在上述限量要求
Multi-Tech Systems, Inc. MultiModem GPRS USB Wireless Modem User Guide
43
Download from Www.Somanuals.com. All Manuals Search And Download.
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