
2
Table of Contents
RC3000A-E Product Introduction 3
RC3000A-E Functional Architecture 4
RC3000A-E module Features 5
RC3000A-E Product
Mechanical Dimensions 7
Using RC3000AMB to connect to Your System 8
Hardware interface 11
A. UART interface 11
B. Audio interface 12
C. USB interface 13
D. I2C interface 14
E. SPI interface 14
F. GPIO interface 14
G. PCM interface 14
H. ADC interface 15
Global Positioning System (GPS) 16
Federal Communication Commission Interference Statement
18
Industry Canada statement 19
Safety Rules and Recommendations
20
Antenna Requirements 21
SIM Card Information
23
Introduction to Modem Operation – The AT Command Set 24
Limited Warranty 41
Contacting Radicom Research 43
Information furnished by Radicom Research is believed to be accurate and reliable. However
Radicom Research assumes no responsibility for its use, or any infringement of patents or other
rights of third parties that may result from its use. Radicom Research reserves the right to
change circuitry at any time without notice. This document is subject to change without notice.

3
RC3000A-E Product Introduction
Thank you for purchasing Radicom Research’s RC3000A-E product. We are committed
to providing you quality service and technical support. The RC3000A-E is the perfect
solution for integrating WCDMA applications into many different types of embedded
hosts or remote equipment. This product is fully self-contained and requires only a serial
TTL interface from your product, SIM card and cellular signal access to provide you with
state of the art data, fax, and voice operation.
Designed for the global marketplace, RC3000A-E is a quad-band GSM/GPRS/EDGE and
dual-band UMTS/HSDPA that works on frequencies of GSM 850MHz, EGSM 900MHz,
DCS 1800MHz, PCS 1900MHz and WCDMA 2100/900MHz, 2100/850MHz or
1900/850MHz. User can choose the module based on the wireless network configuration.
The entire radio band configuration of RC3000A-E is described in the following table.
Standard Frequency RC3000A
GSM
GSM 850MHz
EGSM 900MHz
DCS 1800MHz
PCS 1900MHz
WCDMA
WCDMA 850MHz
WCDMA 900MHz
WCDMA 1900MHz
WCDMA 2100MHz
HSPA
HSDPA
HSUPA
This document is a guideline to help you design the RC3000A-E into your system. If
further information is needed please contact Radicom and we will provide any additional
help you may need.

4
RC3000A-E Functional Architecture
Transceiver
Power
Management
32.768kHz
VCTCXO
19.2MHz
GPS RF
DDR
NAND
Flash
GSM PA
GSM/WCDMA
RF Frontend
WCDMA
PA
SIM
UART
Audio
I2C
USB
GPIOs
ADC
LDO
SPI
Power On
Reset
Vbat*
PCM
Interrupt
Status LED
Vbat*

5
RC3000A-E Features
• RC3000A: Dual-Band UMTS/HSDPA 850/1900MHz, Quad-Band
GSM/GPRS/EDGE 850/900/1800/1900MHz
• Supported embedded LUA Script Language
• A-GPS: MS-Based, MS-Assisted supported
• Support for Data transfer:
HSDPA: Max. 3.6Mbps(DL)
WCDMA: Max. 384Kbps(DL), Max. 384Kbps(UL)
EDGE Class: Max. 236.8Kbps(DL), Max. 118Kbps(UL)
GPRS: Max. 85.6Kbps(DL), Max. 42.8Kbps(UL)
CSD:
• GSM data rate 14.4Kbps
• WCDMA data rate 57.6Kbps
• WCDMA 64Kbps CSD for Video Call
• Support in GSM and WCDMA for Network Identity and Time zone (NITZ)
• MMS
• TCP/IP
• MUX protocol
• FTP/FTPS/HTTPS/SMTP/POP3/DNS
• FOTA
• eCall Ready
• Supported interface: USB2.0, UART, SIM card, SPI, I2C, Keypad, Constant current
sink, GPIO, RTC, ADC, PCM
Feature Implementation
Power supply Single supply voltage 5.0+ - 0.3V
Transmission data
Dual-mode UMTS/HSDPA/EDGE/GPRS operation
• GPRS Class B, multi-slot class 12 operation, supports
coding scheme: CS1-4
• EDGE multi-slot class 12 operation, supports coding
scheme: MSC1-9
• UMTS R99 data rates-384 kbps DL/UL
• HSDPA Category 5/6 -3.6 Mbps Category 12-1.8 Mbps
• CSD feature: 9.6, 14.4, 64 kbps UL/DL
GPS
Mobile-Assisted mode
• Mobile-based mode
• Standalone mode
SMS
MT, MO, CB, Text and PDU mode
• SMS storage: SIM card
• Support transmission of SMS alternatively over CSD or

6
GPRS. User can choose preferred mode.
Output power
UMTS 850/1900: 0.25W
• UMTS 900/2100: 0.25W
• GSM850/GSM900: 2W
• DCS1800/PCS1900: 1W
Audio features
(optional)
Speech codec modes:
• Half Rate (ETS 06.20)
• Full Rate (ETS 06.10)
• Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80)
• AMR (WCDMA)
• AMR+QCP (GSM)
• A5/1, A5/2, and A5/3 ciphering
Serial interface
Serial Port standard or null modem mode on Serial Port
Interface
• Serial Port can be used to control module by sending AT
command
USB Support USB2.0 Slave mode
Phonebook
management
Support phonebook types: SM, FD, LD, RC, ON, MC
SIM application toolkit
Support SAT class 3, GSM 11.14 Release 98
Support USAT
Real Time Clock Support RTC
Timer function Programmable by AT command
Physical characteristics
Size:1.51” x 2.15”
Weight:25g
Firmware upgrade Firmware upgrade over USB interface
PCM
Multiplex on GPIOs. 3 kinds of coding formats: 8 bit (υ-law or
A-law) and 16 bit (linear)
USB Driver support
Microsoft Windows 2000/XP/Vista
• Windows CE/Mobile
• Linux 2.6
Temperature range
• Normal operation temperature: -30℃ to +80℃
• Storage temperature: -40℃ to +90℃
Certification
RC3000A-A: FCC, PTCRB
• RC3000A-E: CE, GCF
• RC3000A-J: Telec, JATE

8
Using RC3000A-E connecting to Your System
Product picture and Function
1. RC3000A Module
2. RF RPSMA connector
3. SIM card socket
4. SPI/I2C/GPIO/ADC interface socket (please see note1 for pins out orientation)
5. 3.5mm Ear phone jack
6. 3.5mm Microphone jack
7. GPS RF SMA connector
8. IDC 10 RS232 socket (please see note2 for pins out orientation)
9. Mini USB connector
10. USB_5V power on indicator
11. Network status indicator

9
Note 1:
SPI/I2C/GPIO/ADC interface socket pins out definition:
1: ADC_2 2: ADC_1 3: GPIO_1 4: Ground 5: I2C_SDA 6: SPI_CS_N
7: GPIO_2 8: SPI_MOSI_DATA 9: I2C_SCL 10: SPI_MISO_DATA
11: VDD+3.3V 12: SPI_CLK
Note 2:
IDC 10 RS232 socket pins out definition:
1: DCD 2: RXD 3: TXD 4: DTR 5: Ground
6: DSR 7: RTS 8: CTS 9: RI 10: NC
P in10
Pin9
P in 1
P in 2

`Launch RC3000A-E Product
1. Connect antenna/SIM card/IDC 10 RS232 cable to ○1 RF RPSMA connector/
○
3 SIM card socket/ ○8 IDC 10 RS232 socket accordingly
2. Plug in ○9 Mini USB connector 5V power
3.
○
11 USB_5V power on indicator (blue LED) will turn on
4.
○
10 Network status indicator (green LED) will be on after blue LED turns on 5
seconds, RC3000AMB is entering power on sequence at this stage.
5. When Docklight screen shows below message which means the UART port is
established:
6. 2014/1/3 14:51:44.068 [RX] - <NUL> ?<CR><LF>
7. START<CR><LF>
8. <CR><LF>
9. +STIN: 25<CR><LF>
10. <CR><LF>
11. +STIN: 25<CR><LF>
12. <CR><LF>
13. +CPIN: READY<CR><LF>
14. <CR><LF>
15. SMS DONE<CR><LF>
16. <CR><LF>
17. +VOICEMAIL: INIT_STATE, 0, 0<CR><LF>
18. <CR><LF>
19. PB DONE<CR><LF>
6. 3G network is connected if the ○10 Network status indicator (green LED) flashed
once/sec
7. Type AT command to control RC3000AMB kit (please refer to page 36 AT Commands
Samples)
8. Dial SIM card phone number, and type “A” “T” “A” to pick up phone call
<CR><LF>
RING<CR><LF>
2014/1/3 15:27:11.249 [TX] - A
2014/1/3 15:27:11.258 [RX] - A
2014/1/3 15:27:11.718 [TX] - T
2014/1/3 15:27:11.728 [RX] - T
2014/1/3 15:27:12.178 [TX] - A
2014/1/3 15:27:12.188 [RX] - A
2014/1/3 15:27:12.959 [TX] - <CR><LF>
2014/1/3 15:27:12.968 [RX] - <CR>
<CR><LF>
VOICE CALL: BEGIN<CR><LF>
<CR><LF>
OK<CR><LF>
Hardware Interface
A. UART interface:

The RC3000A-E provides an UART (universal asynchronous serial transmission)
port. It consists of a flexible 7-wire serial interface. The module is as the DCE
(Data Communication Equipment) and the client PC is as the DTE (Data Terminal
Equipment). AT commands are entered and serial communication is performed
through UART interface.
The application circuit is in the following figures.
Full modem
Null modem
If UART port is used in Null Modem, the pin “RI” can be used as an interrupt signal
to HOST. Normally it will keep high logic level until certain condition such as
receiving SMS, voice call (CSD, video) or URC reporting, then “RI” will change to
MODULE(DCE)
Serial port
TXD
RXD
MODULE(DCE)
Serial port
TXD
RXD
RTS
CTS
DTR
DCD
RI
R R
R R
R
R
R
MODULE(DCE)
Serial port
TXD
RXD
MODULE(DCE)
Serial port
TXD
RXD
RTS
CTS
DTR
DCD
RING
GPIO
R R
Wake up host

low logic level to inform the master (client PC). It will stay low until the master
clears the interrupt event with AT command.
If Full Modem is used to establish communication between devices, the pin “RI” is
another operation status. Initially it keeps high, when a voice call or CSD call comes,
the pin “RI” will change to low for about 5900ms, then it will return to high level for
100ms. It will repeat this procedure until this call is answered or hung up.
Note: RC3000A supports the communication rate: 300, 600, 1200, 2400, 4800, 9600,
19200, 38400, 57600, 115200, 230400, 460800, 921600, 3200000, 3686400,
4000000bps. Default rate is 115200bps.
B. Audio Interface:
RC3000A-E provides two analog signal outputs and one analog input. MIC1P/N is
used as microphone, EAR1P/N and SPK_P/N are used as audio output. Regarding
audio parameters configuration, please refer to the ATC manual.
There are three audio channels in RC3000A, including speaker output, receiver
output and microphone input. SPEAKER circuit in RC3000A is a Class-D amplifier.
Note: RC3000A has integrated MIC bias circuit. There is no need to pull the MIC1P
and MIC1N up to the external power, just connect it to microphone. MIC1P and
MIC1N must be differential lines.
Main audio parameters can be changed to satisfy users’ requirement. Here primary
register parameters and related description are listed. User can adjust them through
AT command.
Audio Parameter:
Parameter
Influence
to
Range Gain range Calculation AT command
analogue
amplifier
gain before
ADC
0…1 0…24dB 2 steps AT+CMICAMP1
txVol
of input
signal after
ADC
0,
1…65535
20 * log
(txVol/16384)
AT+CTXVOL
txGain
of input
signal after
summation
of sidetone
0,
1…65535

13-tap filter
parameters, 7
values
0…65535 ---
MATLAB
calculate
AT+CTXFTR
rxGain
of output
signal after
summation
of sidetone
0,
1…65535
Volume of
output signal
after speech
decoder,
before
summation
of sidetone
and DAC
300…300
AT+CLVL
AT+CVLVL
AT+CRXVOL
stGain
attenuation
of sidetone
0,
1…65535
(stGain/16384)12
AT+SIDET
rxFilter
13-tap filter
parameters, 7
values
0…65535 ---
MATLAB
calculate
AT+CRXFTR
Note: If users require better experience on audio, users should modify these
parameters according to their own electronic and mechanical design.
C. USB Interface:
RC3000A-E module contains an USB interface. This interface is compliant with the
USB2.0 specification. The USB2.0 specification requires hosts such as the computer
to support all three USB speeds, namely low-speed (1.5Mbps), full-speed (12Mbps)
and high-speed (480Mbps). USB charging and USB-OTG is not supported.
Currently RC3000A supports the USB suspend and resume mechanism which can
help to save power. If not transaction is on USB bus, RC3000A will enter suspend
mode. When some events such as voice call or receiving SMS happen, RC3000A
will resume normal mode automatically.
Note: The RC3000A has two kinds of interface (UART and USB) to connect to host
CPU. USB interface is mapped to five virtual ports: “SIMTECH USB Modem”,
“SIMTECH NMEA Device”, “SIMTECH ATCOM Device”, “SIMTECH Diagnostics
interface” and “SIMTECH Wireless Ethernet Adapter”.

D. I2C Interface:
I2C is used to communicate with peripheral equipment and can be operated as either
a transmitter or receiver, depending on the device function. Use AT Commands
“AT+CRIIC and AT+CWIIC” to read/write register values of related peripheral
equipment connected with I2C interface.
Both SDA and SCL are bidirectional lines, connected to a positive supply via a pullup resistor respectively. When the bus is free, both lines are high.
For RC3000A, the data on the I2C bus can be transferred at rates up to 400kbps. The
number of peripheral devices connected to the bus is solely dependent on the bus
capacitance limit of 400pF. Note that PCB traces length and bending are in users’
control to minimize load capacitance.
Note:I2C_SDA and I2C_SCL have been pulled up with two 2.2kR resistors to 2.6V
level in module. So there is no need to pull them up in users’ application circuit.
E. SPI Interface:
SPI interface of RC3000A is master only. It provides a duplex, synchronous, serial
communication link with peripheral devices. Its operation voltage is 1.8V, with
clock rates up to 26 MHz.
F. GPIO Interface:
RC3000A provides a limited number of GPIO pins. All GPIOs can be configured as
inputs or ouputs. User can use AT Commands to read or write GPIOs status.
Note-1: If more GPIOs need to be used, users can configure GPIO on other multiple
function interfaces, such as PCM.
Note-2: The output driver current of GPIOs is 2mA.
G. PCM Interface:
RC3000A provides hardware PCM interface for external codec. The PCM interface
enables communication with an external codec to support hands-free applications.
RC3000A PCM interface can be used in two modes: the default mode is auxiliary
PCM (8 KHz long sync mode at 128 KHz PCM CLK). In short-sync (primary PCM)
mode, RC3000A can be a master or a slave. In long-sync (auxiliary PCM) mode,
RC3000A is always a master. RC3000A also supports 3 kinds of coding formats: 8
bits (υ-law or A-law) and 16 bits (linear).
Note: PCM interface is multiplexed from GPIO (default setting). The AT command
“AT+CPCM” is used to switch between PCM and GPIO functions.
ADC Interface:
RC3000A has a dedicated ADC that is available for digitizing analog signals such as
battery voltage and so on; it is on PIN 35 and PIN 36, namely ADC1 and ADC2.

This ADC is 12 bit successive-approximation circuit, and electronic specification is
shown in the following table.
Electronic Characteristics:
Specification Min Typ Max Unit
Comments/Conditions
Resolution 12 Bits
Differential nonlinearity -4 +4 LSB
Analog Vdd = ADC
reference 2.4MHz sample
rate
Integral nonlinearity -8 +8 LSB
Gain Error -2.5 +2.5 %
Offset Error -4 +40 LSB
Input Range GND 4.4V V
Input serial resistance 2 kΩ
Sample and hold switch
resistance
Input capacitance 53 pF
Power-down to wakeup 9.6 19.2 µs
User can introduces a signal in the ADC pin directly and use the AT command
“AT+CADC” to get the raw data which is between 0 and 4095. The data can be
transformed to any type such as voltage, temperature, etc.

Global Positioning System (GPS)
RC3000A merges GPS satellite and network information to provide a high-availability
solution that offers industry-leading accuracy and performance. This solution performs
well, even in very challenging environment conditions where conventional GPS receivers
fail, and provides a platform to enable wireless operators to address both location-based
services and emergency mandates.
Technical specification:
Tracking sensitivity -157dBm
Cold-start sensitivity -144dBm
Accuracy (Open Sky) <2m (CEP50)
TTFF (Open Sky) Hot start <1s Cold start 35s (good signal)/100s (weak signal)
Receiver Type 16-channel, GPS L1 Frequency (1575.42MHz), C/A Code
Update rate default 1 Hz
GPS data format NMEA-0183
GPS Current consumption (WCDMA/GSM Sleep mode) 100mA (Total supply current)
GPS antenna Passive/Active antenna
Note: Performance will vary depending on the environment, antenna type and signal conditions
and so on.
RC3000A supports both A-GPS and S-GPS, and then provides three operating modes: mobileassisted mode, mobile-based mode and standalone mode. A-GPS includes mobile-assisted and
mobile-based mode.
In mobile-assisted mode, when a request for position location is issued, available network
information is provided to the location server (e.g. Cell-ID) and assistance is requested from the
location server. The location server sends the assistance information to the handset. The
handset/mobile unit measures the GPS observables and provides the GPS measurements along
with available network data (that is appropriate for the given air interface technology) to the
location server. The location server then calculates the position location and returns results to
the requesting entity.
In mobile-based mode, the assistant data provided by the location server encompasses not only
the information required to assist the handset in measuring the satellite signals, but also the
information required to calculate the handset’s position. Therefore, rather than provide the GPS
measurements and available network data back to the location server, the mobile calculates the
location on the handset and passes the result to the requesting entity.
In standalone (autonomous) mode, the handset demodulates the data directly from the GPS
satellites. This mode has some reduced cold-start sensitivity, and a longer time to first fix as

compared to the assisted modes. However, it requires no server interaction and works out of
network coverage.
This combination of GPS measurements and available network information provides:
• High-sensitivity solution that works in all terrains: Indoor, outdoor, urban, and rural
• High availability that is enabled by using both satellite and network information
Therefore, while network solutions typically perform poorly in rural areas and areas of poor cell
geometry/density, and while unassisted, GPS-only solutions typically perform poorly indoors.
The RC3000A GPS solution provides optimal time to fix, accuracy, sensitivity, availability, and
reduced network utilization in both of these environments, depending on the given condition.

Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by
the party responsible for compliance could void the user's authority to
operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
IMPORTANT NOTE:
Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with
any other antenna or transmitter.

Industry Canada statement:
This device complies with Industry Canada’s licence-exempt RSSs. Operation is
subject to the following two conditions:
(1) This device may not cause interference; and (2) This device must accept any
interference, including interference that may cause undesired operation of the
device.
Cet appareil est conforme aux CNR exemptes de licence d'Industrie Canada.
Son fonctionnement est soumis aux deux conditions suivantes:
(1) Ce dispositif ne peut causer d'interférences; et(2) Ce dispositif doit accepter
toute interférence, y compris les interférences qui peuvent causer un mauvais
fonctionnement de l'appareil.
Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator & your body.
Déclaration d'exposition aux radiations:
Cet équipement est conforme aux limites d'exposition aux rayonnements IC
établies pour un environnement non contrôlé. Cet équipement doit être installé et
utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et
votre corps.
This radio transmitter (IC: 2377A-RC3000A) has been approved by Industry
Canada to operate with the antenna types listed below with the maximum
permissible gain indicated. Antenna types not included in this list, having a gain
greater than the maximum gain indicated for that type, are strictly prohibited for
use with this device
Cet émetteur radio (IC: 2377A-RC3000A) a été approuvé par Industrie Canada
pour fonctionner avec les types d'antenne énumérés ci-dessous avec le gain
maximal admissible indiqué. Types d'antennes ne figurent pas dans cette liste,
ayant un gain supérieur au gain maximum indiqué pour ce type, sont strictement
interdits pour une utilisation avec cet appareil
Type
Manufacture
Gain
Connector
Dipole
New Premier 1.5dBi SMA

Safety Rules and Recommendations
READ CAREFULLY
Be sure the use of this product is allowed in the country. It is responsibility of the user to
enforce the country regulation and the specific environment regulation. The product has
to supply a stabilized voltage source and the wiring may have to conform to local security
and fire prevention regulations.
.
The use of this product may be dangerous and has to avoid in the following areas:
• Where it can interfere with other electronic devices in environment such as
hospitals, airports, aircrafts, etc.
• Where there is risk of explosion such as gasoline stations, oil refineries, etc.
Do not disassemble the product; any mark of tampering will compromise the warranty
validity.
The product has to be handled with care, avoiding any contact with the pins because
electrostatic discharges may damage the product itself. The same cautions have to be
taken for the SIM card, checking carefully the instruction for its use. Do not insert or
remove the SIM when the product is in power saving mode.
The system integrator is responsible of the functioning of the final product; therefore,
care has to be taken to the external components of the module, as well as of any project
or installation issue, because the risk of disturbing the GSM network or external devices
or having impact on the security. Should there be any doubt, please refer to the technical
documentation and the regulations in force.

Antenna Requirements
Every module has to be equipped with a proper antenna with specific characteristics.
The antenna for RC3000A must meet the following requirements:
This device is to be used only for mobile and fixed application. End-users must be
provided with transmitter operation conditions for satisfying RF exposure compliance.
OEM integrators must ensure that the end user has no manual instructions to remove or
install RC3000A modem. Antennas used for this OEM module must not exceed 3dBi
gain for mobile and fixed operating configurations.
GSM Antenna – Installation Guidelines
• Install the antenna in a place covered by the GSM signal. The Antenna must be
installed to provide a separation distance of at least 20 cm from all persons and
must not be co-located or operated in conjunction with any other antenna or
transmitter. In case of this requirement cannot be satisfied, the system integrator
has to assess the final product against the SAR regulation.
• Due to the RC3000A antenna characteristics to environmental sensitivity, the
antennas location should consider that the performance could be affected by a
building’s characteristics or other obstructions that may interfere with the
modules ability to make a strong connection to the intended cellular signal
provider.
ANTENNA REQUIREMENTS
Frequency Range Depending by frequency band(s) provided by the
network operator, the customer must use the most
suitable antenna for that/those band(s).
Bandwidth 80 MHz in EGSM 900, 70 MHz if GSM 850, 170
MHz in DCS, 140 MHz PCS band
Gain Gain < 1.5dBi
Impedance 50 ohm
Input Power > 2 W peak power
VSWR Absolute max <= 10:1
VSWR Recommend <= 2:1
WARNING:
Using an antenna other than the type approved for
use with this product requires the finished product, with the module
and new antenna type installed to be tested to comply with all
sections of FCC Part 15 requirements!

• The Antenna must not be co-located or operated in conjunction with any other
antenna or transmitter.
• Antenna shall not be installed inside metal cases.
•
Antenna shall be installed also according Antenna manufacturer instructions.

SIM (Subscriber Identity Module) Card Information
To access a cellular network you must purchase a compatible SIM card. The GSM
modules have a SIM card slot located on the bottom of the PCB. The SIM card has to be
handled with care, avoiding any contact with the pins because electrostatic discharges
may damage the product itself. Please read the SIM manufactures instructions prior to
installing.
Do not insert or remove the SIM card when the product is in power saving mode.
The SIM interface complies with the GSM Phase 1 specification as well as GSM Phase
2+ specification for FAST 64 kbps SIM card. The module supports both 1.8Volt and 3
Volt SIM cards. The SIM card is enabled with the AT+CSDT command.

Introduction to Modem Operation-The AT Command Set
RC3000A modules are used to originate or answer telephone calls and establish links
with other devices for the purpose of transmitting voice, data, or fax information between
two locations. Please refer to the SIM900 AT Command Manual for complete AT
command listings and information
After installation, you will now be able to communicate with the modem and establish
connections with remote devices. Controlling the modem functions is accomplished by
using “AT” commands. These commands are used to instruct the modem to perform
functions such as dialing or to answers calls. These commands are normally
automatically issued by communication software. However for some applications,
custom software may have to be written due to the absence of a normal operating system
such as DOS or Windows.
NOTE: The first AT command issued must be Upper Case AT. Subsequent AT
commands can be either Upper Case or Lower Case.
The modem will automatically accept and process “AT” commands at most standard
DTE (Data Terminal Equipment) speeds and parity settings. For each command issued,
the modem will respond with a result code informing you of the modem’s status. The
format of a basic “AT” command and result code is as follows:
AT <Command> <CR>
OK
AT = ATtention what follows is a command
<Command> = any valid command
<CR> = Carriage Return or Enter Key
OK = Result code meaning: the modem has accepted the command
AT Commands Samples
A. General Commands
Display product identification
Request manufacturer identification.
Request model identification.
Request revision identification.
Request product serial number

Request international mobile
Request overall capabilities.
Configure URC destination interface.
Indicate RI when using URC.
Originate call from specified
Originate call from active memory
Originate call from active memory
Switch from data mode to command
Switch from command mode to data
Disconnect existing call.
Select bearer service type.
Service reporting control.
DTMF and tone generation.
Automatic answer quickly.

Control PCM data transfer by
Get the current vocoder capability in
Message service failure result code.
Preferred message storage.
SMS service centre address.
Select cell broadcast message
Show text mode parameters.
New message acknowledgement to
New message indications to TE.
List SMS messages from preferred
Send message from storage.
Set text mode parameters.
Set message valid period.
Write message to memory quickly.
Generate a new message reference.
Send multi messages from storage.
Send message from storage to multi

D. Network Service Related Commands
Calling line identification
Calling line identification
Connected line identification
Call forwarding number and
Call related supplementary services.
Unstructured supplementary service
lementary service notifications.
Preferred mode selection.
Preferred band selection.
Acquisitions order prefere
Preferred service domain selection.
Inquiring UE system information.
Show network system mode.
Automatic time and time zone
Time and time zone reporting.
Show cell channel information.
Show serving cell radio parameter.
Show cell set system information.
Network band scan quickly.
Network full band scan in string

Network full band scan in numeric
Network band scan by channels in
Network band scan by channels in
Enable single mode in RAT
Manage PLMN filter password.
E. Mobile Equipment Control and Status Commands
ipment error result code.
Report mobile equipment error.
Accumulated call meter maximum.
Price per unit and currency table.
Control phone to power down.
RF check at initialization.
Change diagnostics port mode.
Write delta package to FOTA
Switch UART from AT service to
Switch to UART download mode.
F. SIMCard Related Commands

Time remain to input SIM PIN/PUK
Get service provider name from
Reinitialize the SIM card.
G. Hardware Related Commands
Read values from register of IIC
Write values to register of IIC
Set state of the pin named
Set Trigger mode of interrupt GPIO.
Set the direction of specified GPIO.
Set the value of specified GPIO.
Get the value of specified GPIO.
Set value of sound level.
Digital attenuation of sidetone.
Enable/Disable Echo Canceller.
Enable/Disable Noise Suppression.
Adjust the effect for the given echo
Reset RI pin of serial port.
Enable the multiplexer over the
Configure the specific virtual com
port to the appropriate service.

Configure the trigger condition for
Enable/Disable the pin of DTR’s
Enable/Disable the function for the
Reset GPIO 41 to high level.
Configure the trigger condition for
Switch USB high or full speed.
Adjust the LED’s intensity.
Read the value from the second
Set the value of RF output power.
SPI clock frequency setting.
SPI transfer parameters setting.
I. Phonebook Related Commands
Select phonebook memory storage.

Set the list of emergency number.
J. File System Related Commands
Select directory as current directory.
Make new directory in current
Delete directory in current directory.
List directories/files in current
Delete file in current directory.
Rename file in current directory.
Check the size of available memory.
K. File Transmission Related Commands
Select file transmitted to PC host.
Set name of file received from PC
Config the waiting seconds before
Transfer a file from EFS to external
host.
L. V24-V25 Commands
Set local baud rate temporarily.
Set local baud rate permanently.
Set local data flow control.

Display current configuration.
Set all current parameters to
manufacturer defaults.
M. Commands for Packet Domain
Define Secondary PDP Context.
Quality of service profile
3G quality of service profile
Quality of service profile (minimum
3G quality of service profile
Packet domain attach or detach.
PDP context activate or deactivate.
GPRS mobile station class.
GPRS network registration status.
Select service for MO SMS
Set type of authentication for PDP
IP connections of GPRS.
N. TCP/IP Related Commands
Set active PDP context’s profile
Set type of authentication for PDP
IP connections of socket.
Quality of service profile

3G quality of service profile
Quality of service profile (minimum
3G quality of service profile
Inquire socket PDP address.
List all of clients’ information.
Disconnect specified client.
Add an IP head when receiving data.
whether display IP address and
port of sender when receiving data.
Configure parameters of socket.
Close connection in Multi
Query the IP address of given
Query the domain name of given IP
Select TCPIP application mode.
Statistic the total size of data sent or
Enable duplicate PDP activation.
Set TCP_KEEP_ALIVE paramet
Ping some destination address.
Stop an ongoing ping session.
Set unknown incoming TCP packet
Set UDP port unreachable ICMP
Close the TCP connection.

O. SIM Application Toolkit (SAT) Commands
P. Internet Service Commands
P-1 Simple Mail Transfer Protocol Service
SMTP server address and port
SMTP server authentication.
Recipient address and name
Initiate session and send e
P-2 Post Office Protocol 3 Service
mail number and total size.
Force to stop receiving e

P-3 File Transfer Protocol Service
Set user name for FTP access.
Set user password for FTP access.
Get a file from FTP server to EFS.
Put a file in module EFS to FTP
Put a file to FTP server.
List the items in the directory on
Create a new directory on FTP
Delete a directory on FTP server.
Delete a file on FTP server.
(Summary of CME
ERROR Codes)
P-4 Hyper Text Transfer Protocol Service
codes (summary of
CME ERROR codes)
P-5 Secure Hyper Text Transfer Protocol Service
Acquire HTTPS protocol stack.
Release HTTPS protocol stack.

P-6 Secure File Transfer Protocol Service
Stop FTPS protocol stack.
Create a new directory on FTPS
Delete a directory on FTPS server.
Delete a file on FTPS server.
Change the current directory on
Get the current directory on FTPS
Set the transfer type on FTPS server.
List the items in the directory o
Get a file from FTPS server to EFS.
Put a file in module EFS to FTPS
Get a file from FTPS server to serial
Put a file to FTPS server.
Set FTPS data socket address type.
P-7 HTTP Time Synchronization Service
Updating date time using HTP
P-8 Common Secure Socket Layer Service
Acquire common SSL stack.

Connect to server using SSL.
Set the parameter of common SSL
Set the mode of common SSL
Set the URL of MMS center.
Set the protocol parameters and
Set the parameters for sending
Download the file data or title from
Delete a file within the editing MMS
Delete secret recipients.
View information of MMS in box or
Save the MMS to a mail box.
Delete MMS in the mail box.
Delete MMS in the mail box.
Configure MMS transferring
Increase the length of audio/video

Start running a LUA script file.
Stop the current running LUA script.
Compile a LUA script file.
Send data to the running LUA script.
Set the value of LUA printdir
Get GPS fixed position information.
Configure output port for NMEA
Set AGPS default server URL.
Configure NMEA sentence type.
Configure AGPS MO method.
Delete the GPS information.

Enable/disable GPS XTRA function.
Download XTRA assistant file.
Download XTRA assistant file
Configure based mode switch to
Configure positioning desired
Unsolicited XTRA
download Codes
Start/stop assist location.
Set assist location report
Set assist location mode.
T. Voice Mail Related Commands
U. EONS Related AT Commands

Modify OTAD phone number.

Limited Warranty
Warranty Coverage and Duration
Radicom Research, Inc. (“RRI”) warrants to the original purchaser its RRI-manufactured
products (“Product”) against defects in material and workmanship under normal use and
service for a period of one year from the date of delivery.
During the applicable warranty period, at no charge, RRI will, at its option, either repair,
replace or refund the purchase price of this Product, provided it is returned in accordance
with the terms of this warranty to RRI. Repair, at the option of RRI, may include the
replacement of parts, boards or other components with functionally equivalent
reconditioned or new parts, boards or other components. Replaced parts, boards or other
components are warranted for the balance of the original applicable warranty period. All
replaced items shall become the property of RRI.
RRI MAKES NO GUARANTEE OR WARRANTY THAT THE PRODUCT WILL
PREVENT OCCURRENCES, OR THE CONSEQUENCES THEREOF, WHICH THE
PRODUCT IS DESIGNED TO DETECT.
This expressed limited warranty is extended by RRI to the original end-user purchaser
only, and is not assignable or transferable to any other party. This is the complete
warranty for the Product manufactured by RRI, and RRI assumes no obligation or
liability for additions or modifications to this warranty. In no case does RRI warrant the
installation, maintenance or service of the Product.
RRI is not responsible in any way for any ancillary equipment not furnished by RRI that
is attached to or used in connection with the Product, or for operation of the Product with
any ancillary equipment, and all such equipment is expressly excluded from this warranty.
Because of wide variations in topographical and atmospheric conditions, which may
require availability of repeater stations or of particular radio frequencies, RRI assumes no
liability for range, coverage or suitability of the Product for any particular application.
Buyer acknowledges that RRI does not know a particular purpose for which buyer wants
the Product, and that buyer is not relying on RRI’s skill and judgment to select or furnish
suitable goods.
What this Warranty does NOT Cover:
(a) Defects or damage resulting from use of the Product in other than its normal and
customary manner.

(b) Defects or damage from misuse, accident or neglect.
(c) Defects of damage from improper testing, operation, maintenance, installation,
alteration, modification or adjustment.
(d) Disassembly or repair of the Product in such a manner as to adversely affect
performance or prevent adequate inspection and testing to verify any warranty claim.
(e) Any Product that has had its serial number or date code removed or made illegible.
How to Receive Warranty Service:
To obtain warranty service, contact RRI by phone (408)-383 9006 for RMA Department
or email to rma@radi.com for an RMA (Return Merchandise Authorization) number.
Deliver or send the Product, transportation and insurance prepaid to RRI, with the RMA
number clearly marked on the outside of the package.
General Provision
This warranty sets forth the full extent of RRI’s responsibilities regarding the Product.
Repair, replacement or refund of the purchase price, at RRI’s option, is the exclusive
remedy.
THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER EXPRESSED
WARRANTIES. ANY APPLICABLE IMPLIED WARRANTIES, INCLUDING
WITHOUT LIMITATION THE IMPLIED WARRANTY OF MERCHANTABILITY,
ARE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY. TO THE
FULLEST EXTENT PERMITTED BY LAW, RRI DISCLAIMS ANY LIABILITY
FOR DAMAGES IN EXCESS OF THE PURCHASE PRICE OF THE PRODUCT, FOR
ANY LOSS OF USE, LOSS OF TIME, INCONVENIENCE, COMMERCIAL LOSS,
LOST PROFITS OR SAVING OR OTHER INCIDENTAL, SPECIAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO
USE OR FAILURE OF SUCH PRODUCT.

Contacting Radicom Research
If more information or technical support is needed, please contact us:
2148 Bering Drive
San Jose, CA. 95131
Telephone: (408) 383 9006
Fax: (408) 383 9007
or
e-mail: sales@radi.com
http://www.radi.com/