Intercel SAM3T User manual

Smart SAM3T User Guide V1.52
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Ver1.52
Smart SAM3T
User Guide

Smart SAM3T User Guide V1.52
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Ver1.52
Revision History
Version
Modified By
Date
Description
1.0
07/07/2013
Initial version
1.1
21/07/2014
1.2
1.3
1.4
1.41
24/10/2014
03/11/2014
27/01/2015
20/02/2015
1.5
1.51
VP
VP
10/04/2015
05/05/2015
Update manual to version 1.5
Update manual to version 1.51
1.52
SV
19/05/2015
Added USB port in the manual

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Contents
1Introduction..........................................................................................................................................................3
2Safety Precautions.............................................................................................................................................4
3Radio Frequency Exposure - SAR...................................................................................................................5
4WEEE Directive 2002/96/EC, Disposal of Old Electronic Equipment ........................................................6
5Packaging............................................................................................................................................................7
5.1 5.1 Contents...............................................................................................................................................7
5.2 5.2 Packaging Box ....................................................................................................................................7
5.3 5.3 Production Label.................................................................................................................................8
6Functionality........................................................................................................................................................9
6.1 General .......................................................................................................................................................9
6.2 RJ45 Socket.............................................................................................................................................10
6.3 Mini USB Connector................................................................................................................................10
6.4 FME-Male 50Ω Antenna Connector......................................................................................................10
6.5 SIM Holder................................................................................................................................................10
6.6 LED Status ...............................................................................................................................................10
6.7 6.6 Data Cable.........................................................................................................................................12
7Electrical Characteristics.................................................................................................................................13
7.1 7.1 Power Consumption (TBC)..............................................................................................................13
7.2 7.2 Receive Sensitivity............................................................................................................................13
7.37.3 Conducted Transmit Power.............................................................................................................13
7.4 7.4 Main Antenna Specifications...........................................................................................................14
7.5 7.5 Environmental Characteristics ........................................................................................................14
8. The Smart SAM3T TCP/IP Operation ...............................................................................................................15
7.6 8.1 Communication Sockets..................................................................................................................15
7.7 8.2 TCP/IP AT$ Commands.................................................................................................................16
7.8 8.3 CSD Call Escape Sequence ..........................................................................................................26
9. Firmware Upgrade................................................................................................................................................27
7.9 9.1 The 3G Module Firmware................................................................................................................27
7.10 9.2 The Modem’s Controller Software..................................................................................................27

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1Introduction
The Smart SAM3T is a compact, light-weight, GSM/GPRS/EDGE/UMTS/HSPA+ based modem. It provides
GSM,GPRS,UMTS and HSPA+ connectivity.
The Smart SAM3T is designed for both mobile and fixed M2M applications. It has an RJ45 socket for input
voltage and the serial RS232 signals, an FME-male for antenna connection, a SIM holder and an LED
indicator.
The Smart SAM3T is capable of sending/receiving SMS, Circuit switched data and Packet-switched data.
Mini-USB port FME male for antenna Mini-SIM compartment
RJ45 socket for input power and serial RS232 LED
Mobile station engine HE910-DG
EU approval CE-1909
3GPP Release 6, 7
A-tick

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2Safety Precautions
The following safety precautions must be observed whenever the Smart SAM3T modem is in operation or in
service. Failure to comply with these precautions violates the safety standards of the design, manufacture
and intended use of the product
- Switch off the Smart SAM3T modem :
In hospitals or places where medical equipments may be in use.
In an aircraft
Refuelling points
Explosive areas
- Restricted use of the Smart SAM3T modem
Near any chemical plant
Near any Fuel depot
Areas with mobile phone warning signs
Respect national regulations on the use of cellular devices. Road safety always comes first
The Smart SAM3T modem receives and transmit radio frequency energy while switched on, therefore
interference can occur if the Smart SAM3T is near TVs, radios, PCs or any inadequately shielded
equipments.

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3Radio Frequency Exposure - SAR
The Smart SAM3T modem is a low-power transceiver, similar to a typical handheld GSM/GPRS/UMTS
mobile phone. When it is turned on, it will emit low-level radio frequency energy.
There are different guidelines and standards around the world that govern the permitted levels of radio
frequency exposure for general population. The levels include a safety margin to a human body.
The Specific Absorption rate (SAR) is a measure of the rate at which radio frequency energy is absorbed by
the body when exposed to radio frequency electromagnetic field. The SAR value is determined at the highest
certified power level in the laboratory conditions, but the actual SAR level of the transceiver while operating
can be well below this value. This is because the transceiver is designed to use minimum power to connect
to the network.
The Smart SAM3T modem is approved to use in applications where the antenna is placed more than
21cm from the body.
For other applications, the integrator is responsible for the local SAR requirements.

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4WEEE Directive 2002/96/EC, Disposal of Old Electronic
Equipment
This symbol on the product indicates that this product shall not be treated as household waste .
It must be placed at an appropriate collection point for the recycling of electrical and electronic equipments.
By ensuring the correct disposal of this equipment, it will help the environment and human’s health. The
recycling will help to conserve the natural resources.
The Smart SAM3T product is RoHS compliant

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5Packaging
5.1 5.1 Contents
The Smart SAM3T package consists of :
- A Smart SAM3T modem
- A data cable
- A Smart SAM3T short specification
- A Smart SAM3T User Guide
5.2 5.2 Packaging Box
The carton box diameter is 120mm x 95mm x 60mm
The Data cable is 2m long
The Label diameter is 50mm x 33mm
The Power supply is available on request. It is recommended that the Smart SAM3T is powered using a
12Vdc/1A power supply.
The antenna is also available on request. Please make sure the correct antenna is used to get optimised
performance from the Smart SAM3T.

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5.3 5.3 Production Label
The production part number is located at the back of the Smart SAM3T, which includes:
- The product model
- The software Version
- The Hardware Version
- The IMEI number
- The manufacturer
- The part number
Product Model: Smart SAM3T
Software : Version 1.C
Hardware : Revision2
IMEI
357164045098731
Made by: Intercel - N592
Part number : ASSSAM3TAMR

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6Functionality
6.1 General
The Smart SAM3T modem consists of an RJ45 socket for serial port and input power, an FME male antenna
connector and a SIM holder. The LED indicator, located next to the SIM holder, indicates the Smart SAM3T
operating status. It also has a USB port to download firmware.
FME connector
GSM/GPRS
UMTS/HSPA+
ENGINE
Switching
Power
Supply
RS232
Serial Data
Interface
SIM Interface
RJ45
Socket
LED Indicator
The Smart SAM3T Functional Block Diagram
ARM Cortex
M3
Serial Data
switches
USB
MiniB

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6.2 RJ45 Socket
Pin Signals Description
1 VIN Input voltage 5Vdc - 32Vdc
2 DCD Data Carrier Detect
3 DTR/RI Data terminal Ready/Ring Indicator
4 GND Common Ground
5 RXD Serial Data out of the Smart SAM3T
6 TXD Serial Data into the Smart SAM3
7 CTS Clear to Send
8 RTS Ready to Send
6.3 Mini USB Connector
Pin Signal
1 Vusb
2 D-
3 D+
4 N/C
5 GND
6.4 FME-Male 50Ω Antenna Connector
The FME male antenna connector is a 50Ω impedance antenna connector. The antenna used for the Smart
SAM3T must have 50Ω impedance.
6.5 SIM Holder
The SIM holder is designed to accommodate a mini-SIM card. The SIM card can either be 3V or 1V8 SIM. To
insert the SIM card, remove the door by sliding it back toward the end. Make sure the SIM card faces the
right way as indicated on the box. Voltage levels over this SIM interface complies with 3GPP standards
6.6 LED Status
The LED indication has the following status for different SAMMODE:
SAMMODE=0
Led is handled by Module Software (factory default) with the following timings:
-Not registered: always on
-Registered in idle: blinking 1s on and 2s off
- Modem in a call: always on

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SAMMODE=1
-Not registered : always on
-Modem initialising: 200ms on 200ms off
-Modem connected to PSD network (IP assigned): 100ms on 3s off
-Modem failed to connected to PSD network, timeout before reset: 100ms on 100ms off
-Modem in data transfer mode (online, serial port no longer accepting AT command): 100ms on 500ms off
SAMMODE=2
-Not registered : always on
-Modem initialising: 200ms on 200ms off
-Modem in CSD idle mode ready to receive incoming CSD call: 100ms on 1.5s off
-Modem in data transfer mode (online, serial port no longer accepting AT command): 100ms on 500ms off

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6.7 6.6 Data Cable
The data cable is 2m long. It consists of an RJ45 plug, a DB9-female connector and a 2-wire input power.
5 4 3 2 1
9 8 7 6
DB9 Signals RJ45 Description
1 DCD 2 Data Carrier Detect
2 RXD 5 Serial Data out of the Smart SAM3T
3 TXD 6 Serial Data into the Smart SAM3T
4 DTR 3 Not used
5 GND 4 Common Ground
6 DSR
7 RTS 8 Ready to Send
8 CTS 7 Clear to Send
9 RI Not used
1 RED wire : Input voltage from 5Vdc to 32Vdc
4 BLACK wire : Power Ground

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7Electrical Characteristics
7.1 7.1 Power Consumption (TBC)
Idle mode 29mA
GPRS full tx power 595mA
3G full tx power 525mA
Peak current requirement 2A
7.2 7.2 Receive Sensitivity
7.3 7.3 Conducted Transmit Power
Parameter Min Typical Max
GSM900 +31dBm +33dBm +35dBm
DCS1800 +24dBm +26dBm +28dBm
WCDMA 800/850 +21dBm +24dBm +25dBm
WCDMA 900/2100 +21dBm +24dBm +25dBm
Typical (without Diversity)
-109.5 dBm
Note
GSM 900MHZ
BAND
BER class II <2.44%
GSM 850/1900MHZ
-109 dBm
BER class II <2.44%
DCS 1800MHZ
WCDMA 800/850MHZ
WCDMA 900MHZ
WCDMA 2100MHZ
-110 dBm
-111 dBm
-110 dBm
-111 dBm
BER class II <2.44%
BER < 0.1%
BER < 0.1%
BER < 0.1%

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7.4 7.4 Main Antenna Specifications
Max cable loss 0.5dBm
Impedance 50Ω
VSWR recommended 2:1
VSWR absolute maximum 10:1
7.5 7.5 Environmental Characteristics
Operating temperature -30°C to +85°C
Storage temperature -40°C to +95°C
Humidity 90% relative humidity (non-condensing)

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8. The Smart SAM3T TCP/IP Operation
The Smart SAM3T has a MCU (Microcontroller) to control the 3G module HE910, the Smart SAM3T can be
operating in there different modes, defined by parameter SAMMODE:
-SAMMODE=0, modem is in dumb mode, when power on the MCU turn on the 3G module, check its baud
rate, turn on LED and release control of the 3G module to the connecting device, AT commands can be send
from serial port here after, the MCU keep monitor the 3G module Rx pin for AT$ commands and check time
in the POLLPERIOD parameter (to reset itself and the 3G module.
-SAMMODE=1, modem is in GPRS or PSD (Packet Switch Data) smart mode, the MCU is in total control of
the 3G module, on power up the software reads all parameters from flash and activates a GPSR connection,
it then creates an UDP and a TCP socket to listen for data transfer connection, opens an UDP and a TCP
socket to listen for remote AT commands connection, if programmed as TCP client it will tries to connect to
a remote TCP server, the modem then stays in GPRS online idle state waiting for CSD call, SMS, UDP data
or TCP connection, the software maintains GPRS connectivity by the mean of IP TRACE using
POLLPERIOD parameter stored in flash.
-SAMMODE=2, modem is in CSD (Circuit Switch Data) smart mode, this mode is used if SIM card is not
setup for GPRS, MCU is in total control of the 3G module, modem is always in waiting for CSD call or SMS.
The reason for using SAMMODE=1 for PSD and SAMMODE=2 for CSD is because it is not possible to
configure the Smart SAM3T for simultaneous operation of PSD and CSD, when the Smart SAM3T (3G) is
connected to PSD (IP mode), the modem status is busy when one try to make a data call to it, this is the
behaviour the of the 3G network.
7.6 8.1 Communication Sockets
TCP Data: Socket connection allows transparent data to pass through from host computer to the modem
serial port and vice versa, this operation is similar to the CSD data communication, in TCP
server mode the socket will be disconnected after 5 minutes of no data transfer.
UDP Data: Socket connection allows transparent data to pass through from host computer to the modem
serial port and vice versa, this operation is similar to the CSD data communication, a block
of data received from a remote UDP server will open a 2 minutes window for data to be
transfer from the serial port.
TCP AT Command: Socket connection allows a user from the host computer to send AT commands to
the modem and receive its responses, socket will be disconnected after 5 minutes of no
activity, and socket also can be used for remote firmware update.
UDP AT Command: Socket connection allows a user from the host computer to send AT commands to
the modem and receive its responses, and socket also can be used for remote firmware
update.
.

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7.7 8.2 TCP/IP AT$ Commands
Communications parameters are stored in Flash using AT$PARAMETERS.
Parameters are defined as:
APN=Access Point Name
USERNAME=Username that may required with GPRS login
PASSWORD=Password that may required with GPRS login
LTCPPORT=Local TCP listening port
RTCPIP=Remote TCP server IP
RTCPPORT= Remote TCP server port
TCPMODE=0 or 1 (0 disable modem TCP client, 1 enable modem TCP client)
LUDPPORT=Local binding UDP port (modem listen for UDP data on this port)
RUDPIP=Remote binding UDP IP (modem only accept data from this IP)
RUDPPORT=Remote binding UDP port (modem send UDP data to this port)
PINGIP=If set, modem send PING packet to this IP to check for PSD connectivity.
POLLPERIOD=Modem use this time to send TRACE or P ING packet to check for PSD connectivity.
SBREAKTIME=Serial port break time, modem will wait for this break in serial port transmission before
packetize the data and send.
MBREAKTIME=Modem or GSM module serial break time, use to adjust the way the modem rebuild long IP
packet from fragments of CMUX frames.
BAUDRATE=Serial port baud rate.
DATALEN=Serial port data bits 7 or 8
PARITY= NONE or ODD or EVEN
SAMMODE=0 for standard modem, 1 for PSD mode, 2 for CSD mode.
All parameters can be programmed all at once.
AT$PARAMETERS=APN=telstra.extranet,USERNAME=intercel,PASSWORD=mach,LTCPPORT=10000,RT
CPIP=203.45.1.236,RTCPPORT=10000,TCPMODE=,LUDPPORT=20000,RUDPIP=203.45.1.236,RUDPPO

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RT=20000,POLLPERIOD=60,SBREAKTIME=100,MBREAKTIME=5,BAUDRATE=115200,DATALEN=8,PAR
ITY=NONE,SAMMODE=0
Saved parameters to flash...
OK
Or a few parameters or one at a time.
AT$PARAMETERS=APN=telstra.extranet,USERNAME=intercel,PASSWORD=mach
Saved parameters to flash...
OK
AT$PARAMETERS=LTCPPORT=10000,RTCPIP=203.45.1.236,RTCPPORT=10000,TCPMODE=,LUDPPO
RT=20000,RUDPIP=203.45.1.236,RUDPPORT=20000
Saved parameters to flash...
OK
AT$PARAMETERS=POLLPERIOD=60,SBREAKTIME=100,MBREAKTIME=5,BAUDRATE=115200,DATALE
N=8,PARITY=NONE
Saved parameters to flash...
OK
AT$PARAMETERS=SAMMODE=0
Saved parameters to flash...
OK
AT$PARAMETERS?
$PARAMETERS:
APN: telstra.extranet
USERNAME: intercel
PASSWORD: mach
LTCPPORT: 10000
RTCPIP: 203.45.1.236
RTCPPORT: 10000
TCPMODE: 0
LUDPPORT: 20000
RUDPIP: 203.45.1.236
RUDPPORT: 20000

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BAUDRATE: 115200
DATALEN: 8
PARITY: NONE
POLLPERIOD: 60
SBREAKTIME: 100
MBREAKTIME: 5
SAMMODE: 0
OK
AT$UDPCONNECT
If modem is already allocated an IP address, this command will put the modem in UDP data mode,
modem DCD pin go high, data from serial will be packetized into UDP packet and send to remote
UDP server (UDP settings must be set prior), modem will return to AT Command mode if it
receiving no UDP data in 30 seconds.
If modem has no IP address (CSD mode or SAMMODE=2), the modem will connect to PSD and go
into UDP data mode, modem DCD pin go high, data from serial will be packetized into UDP packet
and send to remote UDP server (UDP settings must be set prior), modem will reset and return to
CSD mode if it receiving no UDP data in 30 seconds.
AT$TCPCONNECT
If modem is already allocated an IP address, this command will make a TCP client connection to
the remote TCP server, modem will return to AT Command mode if it receives no TCP ACK in 30
seconds.
If modem has no IP address (CSD mode or SAMMODE=2), the modem will connect to PSD and
make a TCP client connection to the remote TCP server, modem will reset and return to CSD mode
if it receives no TCP ACK in 30 seconds.
AT$DDNS
Use to setup parameters required for Dynamic DNS updating.
Parameters are defined as: