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MOD-GSM development board
Users Manual
All boards produced by Olimex are ROHS compliant
Rev. B, October 2011
Copyright(c) 2011, OLIMEX Ltd, All rights reserved
Page 1
INTRODUCTION
MOD-GSM is excellent board for adding remote monitoring and control in remote
places by GSM cellular network. With this module you can use all the features of
each one of Olimex's boards with on-board UEXT connector by GSM network.
Also the board can work in stand alone mode, but only when the SIM card is
without PIN code. In stand alone mode MOD-GSM don't offer much opportunities.
It can receive information by GSM network, but if you want to operate with this
information, you will need appropriate board with UEXT connected to MOD-GSM.
Choose the other board depending on the application you want to have. MODGSM contains quad-band GSM GPRS module 850/900/1800/1900Mhz inside
which covers most used GSM networks around the world. The GSM antenna is
build in the board so no need for external expensive GSM antennas.
BOARD FEATURES
•
•
•
•
•
•
•
•
•
•
•
GSM/GPRS quad-band MODULE 850/900/1800/1900Mhz with build onboard GSM cellular antenna
Li-ion backup battery 3.7 V 1200 mAh for up to 200 hours of GSM module
stand-by
SIM-card holder
Status LED
On-GSM module temperature sensor
UEXT
PWR_EXT
PWRKEY
On-board DC-DC converter for stand alone mode and battery recharge
PCB: FR-4, 1 mm (0,039"), solder mask, silkscreen component print
Dimensions: 79.2x57.6 mm (3.1182x2.268")
ELECTROSTATIC WARNING
The MOD-GSM board is shipped in protective anti-static packaging. The board
must not be subject to high electrostatic potentials. General practice for working
with static sensitive devices should be applied when working with this board.
BOARD USE REQUIREMENTS
Hardware:
12V, 800mA at least Adapter, if you want to recharge the battery.
Some of Olimex boards with UEXT on it.
Important: If your board does not work, first try to charge the battery as
you power supply the board for few hours.
Page 2
MODULE FEATURES
–
Pwer Supply – Single Supply voltage 3.4V – 4.5V
–
Power saving – Typical power consumption in SLEEP mode to 2.5mA (BS-PAMFRMS=5)
–
Charging – Supports charging control for Li-Ion battery
–
Frequency bands:
–
SIM340DZ Quad-band: GSM 850, EGSM 900, DCS 1800, PCS 1900. The
SIM340DZ can search the 4 frequency bands automatically. The
frequency bands also can be set by AT command.
–
Compliant to GSM Phase 2/2+
–
GSM class – Small MS
–
Transmit Power
–
–
–
–
–
Class 4 (2W) at EGSM 900
–
Class 1 (1W) at DCS1800 and PCS 1900
GPRS connectivity
–
GPRS multi-slot class 8 (optional)
–
GPRS multi-slot class 10 ( default)
–
GPRS mobile station class B
Temperature range
–
Normal operation: -20°C to +55°C
–
Restricted operation: -30°C to -20°C and +55°C to +80°C
–
Storage temperature -40°C to +80°C
DATA GPRS:
–
GPRS data downlink transfer: max. 85.6 kbps
–
GPRS data uplink transfer: max. 42.8 kbps
–
Coding scheme: CS-1, CS-2, CS-3 and CS-4
–
SIM340DZ supports the protocols PAP (Password Authentication
Protocol) usually used for PPP connections
–
The SIM340DZ integrates the TCP/IP protocol
–
Support Packet Switched Broadcast Control Channel (PBCCH)
–
CSD transmission rates: 2.4, 4.8, 9.6, 14.4 kbps, non-transparent
–
Unstructured Supplementary Services Data (USSD) support
SMS
–
MT, MO, CB, Text and PDU mode
–
SMS storage: SIM card
–
FAX - Group 3 Class 1
–
SIM interface - Support SIM card: 1.8V ,3V
–
External antenna - Connected via 50 Ohm antenna connector or antenna pad
Page 3
–
–
Audio features - Speech codec modes:
–
Half Rate (ETS 06.20)
–
Full Rate (ETS 06.10)
–
Enhanced Full Rate (ETS 06.50/06.60/06.80)
–
Echo suppression
Serial interface and Debug interface
–
Serial Port: Seven lines on Serial Port Interface
–
Serial Port can be used for CSD FAX, GPRS service and sending AT
command of controlling module.
–
Autobauding supports baud rates from 1200 bps to 115200bps.
–
Debug port: provide two lines on Serial Port Interface /TXD and /RXD
–
Debug port is only used for debugging
–
Phonebook management - Support phonebook types: SM, FD, LD, MC, RC, ON,
ME,BN,VM,LA,DC,SD
–
SIM Application Toolkit - Support SAT class 3, GSM 11.14 Release 99
–
Real time clock – Implemented
–
Timer function - Programmable via AT command
–
Physical characteristics
–
–
Size: 33±0.15 x 33±0.15 x 3±0.3 mm
–
Weight: 7.8g
Firmware upgrade – over serial interface
Page 4
Page 5
G ND
2
1
+
C3
2.2uF
C4
R1
68k
4.7k
R2
INV
SW
EN/SYNC
GND FB
VIN
RT
BD9778HFP
7
4
1
6
VR1
3
5
2
http://www.olimex.com/dev
COPYRIGHT(C), 2009
Rev. A
C5
4.7nF
R3
150k
R4
L1
D2
1N5822(SMC)
15uH/DBS135
2
R6
NA
4V_E
4.99k/1%
1
AGND
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
GND9
220uF/10V/tant
C7
15k/1%
C10
10nF(NA)
R5
SIM340D
EAR+
RERAUDIOOUT+
AUDIOOUT-
MIC2P
MIC2N
MIC1N
MIC1P
ANTENNA
10uF/10V/1206
C6
4.99k/1%
23
24
26
25
18
19
20
21
33
ANT
G SM_PCB_ANT
0
2
DCDC_E
1
NETLIGHT
NA
NA
TEMP_BAT
R14
R15
1000uF/6.3V/8x12/low_ESR
C8
22
17
30
31
32
34
35
36
37
48
38
39
41
12
27
29
15
28
C13
C2
1000uF/16VDC
DBG_RX
RXD
MAIN_RX
3
4
43
44
45
11
42
2
1
MAIN_RX
MAIN_TX
DTR
RTS
CTS
RI
DCD
DBG_TX
DBG_RX
VSIM
SIMDATA
SIMCLK
SIMRST
10uF/10V/1206
D1
3
MOD-GSM
1
DBG _TX
TXD
MAIN_TX
9
6
7
8
47
1
2
C15
1
4V
NA
2
1
2
AG ND_E
ON
+5V
1000uF/6.3V/8x12/low_ESR
47uF/6.3V
C14
0
5V_CHG_E
+5V
22R
R13
C19
VBAT
2k
R7
R8
33k
10k
GND
R16
NA
R9
560R
4
5
6
Q1
BC817
STAT
red
VBAT
PW RKEY
SIM
SIM-HO LDER
VCC
SIMRST SIMNC
SIMCLK SIMIO
R10
220nF(NA)
C20
PWRKEY
NETLIG HT
100nF
C17
AUXADC
330pF(NA) 2.2uF(NA)
C18
1
2
3
OPEN
2
1
1N4004(SMD)
+12V
3
DRX/MRX
1
U1
STATUS
VSIM
GPO1
SIMDATA
SPI_DATA
SIMCLK
SPI_CLK
SIMRESET
SPI_CS SIM_PRESENCE
SPI_D/C
KBROW0
BACKUP
VCHG
RXD
TXD
TEMP_BAT
DTR
AUXADC
RTS
CTS
NETLIGHT
RI
POWERKEY
DCD
DEBUG_TX
VBAT1
DEBUG_RX
VBAT2
22R
R12
+
TEMP_BAT
TXD
CTS
DCD
PW RKEY
5
40
14
13
46
16
10
22R
R11
DOWNLOAD
PW R
9-12VDC
1
2
1
2
3
1K
1K
1K
1K
AUXADC
+12V
VSIM
SIMRST
SIMCLK
SIMDATA
+
1x3
BAT
VBAT
BH10R
R22
R23
R24
R25
2
BAT_E
90-DEG REE
1K
3.3K
1K
1K
DTX/MTX
2
TB2_3.5MM
R27
10K
R18
R19
R20
R21
2
4
6
8
10
220
220
VBAT
VSIM,SIMDATA,SIMCLK,SIMRST
R17 R26
10K 33K
RXD
RTS
DTR
RI
1
3
5
7
9
UEXT
TXD,RXD,RTS,CTS,DTR,DCD,RI,DBG_TX,DBG_RX,MAIN_RX,MAIN_TX
R29
R28
CO N61.27MM-6-SMALL
5V_IN
G ND
VBAT
PW R_IN
GPIO 1
AUXADC
1
2
3
4
5
6
PW R_EXT
D3
1N5819S
+5V
C21
1nF(NA)
SCHEMATIC
VBAT
220uF/10V/tant
C16
+
+
+
100nF
BOARD LAYOUT
Page 6
POWER SUPPLY CIRCUIT
The power supply of MOD-GSM may be done in two ways:
1.
Power from +9 - 12VDC without using the external backup battery.
In this case the external power supply is used for supplying of 4V to GSM
module and thus the module can be powered only from external power
supply and the battery must not be connected.
In this case the jumpers have to be configured as follows:
− jumper BAT_E must be open
− jumper 4V_E must be closed
− jumper 4V must be closed
− jumper 5V_CHG_E must be open.
− DCDC_E must be closed
Power consumption in this mode is:
− near to 70mA when have a conversation.
− around 20mA in normal mode (without conversation).
Important: 4V_E, 4V and 5V_CHG_E jumpers have to be moved together.
2. Power from +12VDC with external 4.2V Li backup battery. The GSM module
is powered always via the battery voltage and the external power supply is
used only for charging the battery if it is discharged, i.e. if you have
plugged external power supply the battery will be charged and if the board
is not powered from external power supply the board will work until the
battery dies.
In this case the jumpers have to be configured as follows:
− jumper BAT_E must be closed
− jumper 4V_E must be open
− jumper 4V must be open
− jumper 5V_CHG_E must be closed
− DCDC_E must be closed
− Power consumption in this mode:
Depends on live of the battery and vary from 260mA to 330mA (fully
discharged battery). If we supply the module only via battery, without
external power supply, the current through the battery is between 15mA
and 30mA if there is no conversation, and between 180mA - 240mA when
there is conversation.
Page 7
CONNECTOR DESCRIPTIONS
JTAG
Pin #
Signal Name
1
NC
2
GND
3
RXD
4
TXD
5
RTS
6
CTS
7
DTR
8
DCD
9
RI
10
PWRKEY
This connector allows connecting to other Olimex boards with UEXT connector.
SIM-CARD
Pin #
Signal Name
1
VSIM
2
SIMRST
3
SIMCLK
4
GND
5
NC
6
SIMDATA
This is standard SIM card connector, to operate MOD-GSM should have inserted
valid SIM card for your operator network.
Page 8
PWR-CON
Pin #
Signal Name
1
+12V
2
GND
This connector is used to power the MOD-GSM. External (+9-12VDC) power source have to
be applied to this pins.
PWR_EXT
Pin #
Signal Name
Description
1
5V_IN
5V input for battery recharge
2
GND
Ground
3
VBAT
Output – for power supplying other
devices from the GSM battery
4
PWR_IN
Optional input for external power
supply
5
GPIO1
Doesn't work
6
AUXADC
Input for analog signal
BAT
Pin #
Signal Name
1
VBAT
2
TEMP_BAT
3
GND
Note: The battery doesn't support TEMP_BAT.
Page 9
JUMPER DESCRIPTION
BAT_E
Connects 3.7V Li-ion battery to the GSM module. Default state is to be open to not
drain the battery during stocking the modules.
Default state - open
4V_E
This jumper is used when power the module without
enable 4V to the DCDC output.
battery.
When connected
Default state – open.
4V
This jumper is used when power the module without battery. When connected the
jumper enable 4V to VBAT power pins of SIM340D module.
Default state – open.
5V_CHG_E
This jumper is used when the battery is present and allows battery charging.
Connects the DCDC converter output (5V or 4V according 4V_E jumper state) to
VCHG power pin of SIM340D module.
Default state closed
Important: 4V_E, 4V and 5V_CHG_E jumpers have to be moved together.
Do not plug in external +12V if BAT_E jumper is open!
DCDC_E
Enable DCDC. Connect DCDC output ((5V or 4V according 4V_E jumper state) to the
module.
Default state closed
Download
When the jumper is closed allow SIM340D firmware upgrade.
Default state is open
DTX/ MTX
The DebugTX/MainTX defines whether Debug TX terminal or Main TX terminal of
SIM340D module is connected to FT232RL virtual com port driver.
Default state is DTX
Page 10
DRX /MRX
The DebugRX/MainRX define whether Debug RX terminal or Main RX terminal of
SIM340D module is connected to FT232RL virtual com port driver.
Default state is DRX
AGND_E
Enable board analog ground.
Default state is closed
INPUT/OUTPUT
PWRKEY button – turns on the MOD-GSM module. You can turn on the SIM340D
by driving the PWRKEY to a low level voltage for period time from 500mS to 1S
Status LED ( red) with name STAT – indicates the state of SIM340D module.
STAT is off state - SIM340D is not running
64ms On/ 800ms Off - SIM340D does not find the network
64ms On/ 3000ms Off - SIM340D find the network
64ms On/ 300ms Off - GPRS communication
Page 11
MECHANICAL DIMENSIONS
All measures are in inches.
Page 12
AVAILABLE DEMO SOFTWARE
- MOD-GSM and MOD-GSM-EDGE demo
Page 13
ORDER CODE
MOD-GSM assembled and tested.
How to order?
You can order to us directly or by any of our distributors.
Check our web www.olimex.com/dev for more info.
All boards produced by Olimex are ROHS compliant
Revision history
Rev. B
- edited October 2011 – changes in POWER SUPPLY CIRCUIT –
more detailed
Page 14
Disclaimer
© 2011 Olimex Ltd. All rights reserved. Olimex®, logo and combinations thereof, are registered
trademarks of Olimex Ltd. Other terms and product names may be trademarks of others.
The information in this document is provided in connection with Olimex products. No license, express
or implied or otherwise, to any intellectual property right is granted by this document or in
connection with the sale of Olimex products.
Neither the whole nor any part of the information contained in or the product described in this
document may be adapted or reproduced in any material from except with the prior written
permission of the copyright holder.
The product described in this document is subject to continuous development and improvements. All
particulars of the product and its use contained in this document are given by OLIMEX in good faith.
However all warranties implied or expressed including but not limited to implied warranties of
merchantability or fitness for purpose are excluded.
This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not
be liable for any loss or damage arising from the use of any information in this document or any error
or omission in such information or any incorrect use of the product.
Page 15
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