Telit Wireless Solutions GE866-QUAD Installation manual

GE866-QUAD Hardware User Guide
1VV0301051 Rev. 11 –2019-12-05

GE866-QUAD Hardware User Guide
1VV0301051 Rev. 11 –2019-12-05
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APPLICABILITY TABLE
PRODUCT
GE866-QUAD

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SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Notice
While reasonable efforts have been made to assure the accuracy of this document, Telit
assumes no liability resulting from any inaccuracies or omissions in this document, or from
use of the information obtained herein. The information in this document has been carefully
checked and is believed to be entirely reliable. However, no responsibility is assumed for
inaccuracies or omissions. Telit reserves the right to make changes to any products described
herein and reserves the right to revise this document and to make changes from time to time
in content hereof with no obligation to notify any person of revisions or changes. Telit does
not assume any liability arising out of the application or use of any product, software, or
circuit described herein; neither does it convey license under its patent rights or the rights of
others.
It is possible that this publication may contain references to, or information about Telit
products (machines and programs), programming, or services that are not announced in your
country. Such references or information must not be construed to mean that Telit intends to
announce such Telit products, programming, or services in your country.
Copyrights
This instruction manual and the Telit products described in this instruction manual may be,
include or describe copyrighted Telit material, such as computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and its licensors certain exclusive rights for copyrighted material, including the
exclusive right to copy, reproduce in any form, distribute and make derivative works of the
copyrighted material. Accordingly, any copyrighted material of Telit and its licensors
contained herein or in the Telit products described in this instruction manual may not be
copied, reproduced, distributed, merged or modified in any manner without the express
written permission of Telit. Furthermore, the purchase of Telit products shall not be deemed
to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents or patent applications of Telit, as arises by operation of law in the sale of a
product.
Computer Software Copyrights
The Telit and 3rd Party supplied Software (SW) products described in this instruction manual
may include copyrighted Telit and other 3rd Party supplied computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer
programs, including the exclusive right to copy or reproduce in any form the copyrighted
computer program. Accordingly, any copyrighted Telit or other 3rd Party supplied SW
computer programs contained in the Telit products described in this instruction manual may
not be copied (reverse engineered) or reproduced in any manner without the express written
permission of Telit or the 3rd Party SW supplier. Furthermore, the purchase of Telit products
shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any
license under the copyrights, patents or patent applications of Telit or other 3rd Party supplied
SW, except for the normal non-exclusive, royalty free license to use that arises by operation
of law in the sale of a product.

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Usage and Disclosure Restrictions
License Agreements
The software described in this document is the property of Telit and its licensors. It is
furnished by express license agreement only and may be used only in accordance with the
terms of such an agreement.
Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is
prohibited by law. No part of the software or documentation may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language or computer language,
in any form or by any means, without prior written permission of Telit
High Risk Materials
Components, units, or third-party products used in the product described herein are NOT
fault-tolerant and are NOT designed, manufactured, or intended for use as on-line control
equipment in the following hazardous environments requiring fail-safe controls: the operation
of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic
Control, Life Support, or Weapons Systems (High Risk Activities"). Telit and its supplier(s)
specifically disclaim any expressed or implied warranty of fitness for such High Risk
Activities.
Trademarks
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or
service names are the property of their respective owners.
Copyright © Telit Communications S.p.A. 2014

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Contents
1. Introduction .................................................................................................................... 9
1.1. Scope............................................................................................................................ 9
1.2. Audience....................................................................................................................... 9
1.3. Contact Information, Support ...................................................................................... 9
1.4. Document Organization ............................................................................................. 10
1.5. Text Conventions........................................................................................................ 11
1.6. Related Documents ................................................................................................... 11
2. Overview ....................................................................................................................... 12
3. GE866-QUAD Mechanical Dimensions.......................................................................... 13
4. GE866-QUAD module connections................................................................................ 14
4.1. PIN-OUT ..................................................................................................................... 14
4.2. Pin Layout .................................................................................................................. 17
5. Hardware Commands................................................................................................... 18
5.1. Auto-Turning ON the GE866-QUAD........................................................................... 18
5.2. Turning OFF the GE866-QUAD................................................................................... 21
5.3. Fast SYSHALT the GE866-QUAD................................................................................ 23
5.3.1. Fast SYSHALT by Hardware........................................................................................... 23
5.4. Resetting the GE866-QUAD ....................................................................................... 24
5.4.1. Hardware Unconditional restart.................................................................................... 24
6. Power Supply................................................................................................................ 28
6.1. Power Supply Requirements ..................................................................................... 28
6.2. Power Consumption................................................................................................... 29
6.3. General Design Rules ................................................................................................ 30
6.3.1. Electrical Design Guidelines.......................................................................................... 30
6.3.2. Thermal Design Guidelines............................................................................................ 33
6.3.3. Power Supply PCB layout Guidelines ............................................................................ 35
7. Antenna ........................................................................................................................ 37

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7.1. GSM Antenna Requirements ..................................................................................... 37
7.1.1. GE866-QUAD Antenna –PCB line Guidelines................................................................ 37
7.2. PCB Design Guidelines .............................................................................................. 39
7.2.1. Transmission line design............................................................................................... 39
7.2.2. Transmission line measurements................................................................................. 40
7.3. GSM Antenna - installation Guidelines...................................................................... 41
8. Logic levels specifications ............................................................................................ 42
8.1. Reset signal ............................................................................................................... 43
9. Serial Ports................................................................................................................... 44
9.1. Modem Serial Port..................................................................................................... 44
9.2. RS232 levels translation............................................................................................ 46
10. Audio Section Overview ............................................................................................. 48
10.1. MIC Connection....................................................................................................... 48
10.2. LINE-IN connection ................................................................................................ 49
10.3. EAR Connection ...................................................................................................... 51
10.4. Electrical Characteristics....................................................................................... 53
10.4.1. Input lines ...................................................................................................................... 53
10.4.2. Output lines.................................................................................................................... 54
11. General Purpose I/O .................................................................................................. 55
11.1. GPIO Logic Levels................................................................................................... 56
11.2. Using a GPIO Pad as INPUT ................................................................................... 57
11.3. Using a GPIO Pad as OUTPUT ................................................................................ 57
11.4. Using the RF Transmission Control GPIO4............................................................ 57
11.5. Using the RFTXMON Output GPIO5 ........................................................................ 58
11.6. Using the ALARM/BUZZER output GPIO6 .............................................................. 58
11.7. Magnetic Buzzer Concepts..................................................................................... 60
11.7.1. Short Description ........................................................................................................... 60
11.7.2. Frequency Behaviour..................................................................................................... 61
11.7.3. Power Supply Influence ................................................................................................. 61
11.7.4. Working Current Influence ............................................................................................ 61

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11.8. STAT LED Indication of network service availability.............................................. 62
11.9. SIMIN detect function............................................................................................. 63
11.10. RTC Bypass out....................................................................................................... 63
11.11. SIM Holder Implementation ................................................................................... 63
12. DAC and ADC section................................................................................................. 64
12.1. DAC Converter ........................................................................................................ 64
12.1.1. Description..................................................................................................................... 64
12.1.2. Enabling DAC ................................................................................................................. 64
12.1.3. Low Pass Filter Example ............................................................................................... 65
12.2. ADC Converter ........................................................................................................ 65
12.2.1. Description..................................................................................................................... 65
12.2.2. Using ADC Converter ..................................................................................................... 66
13. Mounting the GE866 on your Board ........................................................................... 67
13.1. General ................................................................................................................... 67
13.2. Module finishing & dimensions.............................................................................. 67
13.3. Recommended foot print for the application (dimensions in mm): ...................... 68
13.4. Stencil ..................................................................................................................... 71
13.5. PCB pad design ...................................................................................................... 71
13.6. Recommendations for PCB pad dimensions (mm): .............................................. 72
13.7. Solder paste............................................................................................................ 73
13.8. GE866 Solder reflow............................................................................................... 74
14. Packing system ......................................................................................................... 76
14.1. Packing on reel....................................................................................................... 76
14.2. Packing on tray....................................................................................................... 77
14.3. Moisture sensibility ................................................................................................ 79
15. Safety Recommendations.......................................................................................... 80
16. Conformity assessment issues.................................................................................. 81
16.1. ANATEL Regulatory Notices: ................................................................................. 81

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17. Document History...................................................................................................... 82

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1. Introduction
1.1. Scope
The aim of this document is the description of some hardware solutions useful for
developing a product with the Telit GE866-QUAD module.
1.2. Audience
This document is intended for Telit customers, who are integrators, about to
implement their applications using our GE866-QUAD modules.
1.3. Contact Information, Support
For general contact, technical support, to report documentation errors and to order
manuals, contact Telit Technical Support Center (TTSC) at:
TS-[email protected]
TS-NORTHAMERI[email protected]
TS-LATINAMERI[email protected]
TS-[email protected]
Alternatively, use:
http://www.telit.com/en/products/technical-support-center/contact.php
For detailed information about where you can buy the Telit modules or for
recommendations on accessories and components visit:
http://www.telit.com
To register for product news and announcements or for product questions contact
Telit Technical Support Center (TTSC).
Our aim is to make this guide as helpful as possible. Keep us informed of your
comments and suggestions for improvements.
Telit appreciates feedback from the users of our information.

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1.4. Document Organization
This document contains the following chapters:
Chapter 1: “Introduction” provides a scope for this document, target audience,
contact and support information, and text conventions.
Chapter 2: “Overview” provides an overview of the document.
Chapter 3: “GE866-QUAD Mechanical Dimensions”
Chapter 4: “GE866-QUAD Module Connections” deals with the pin out configuration
and layout.
Chapter 5: “Hardware Commands” How to operate on the module via hardware.
Chapter 6: “Power supply” Power supply requirements and general design rules.
Chapter 7: “Antenna” The antenna connection and board layout design are the most
important parts in the full product design.
Chapter 8: “Logic Level specifications” Specific values adopted in the implementation
of logic levels for this module.
Chapter 9: “Serial ports” The serial port on the Telit GE866-QUAD is the core of the
interface between the module and OEM hardware
Chapter 10: “Audio Section overview” Refers to the audio blocks of the Base Band
Chip of the GE866-QUAD Telit Modules.
Chapter 11: “General Purpose I/O” How the general purpose I/O pads can be
configured.
Chapter 12 “DAC and ADC Section” Deals with these two kind of converters.
Chapter 13: “Mounting the GE866 on your Board” Recommendations and specifics on
how to mount the module on the user’s board.
Chapter 14: “Packing system” Recommendations and specifics on how the system is
packaged.
Chapter 15: “Safety Recommendations” Recommendations and specifics on how the
system is packaged.
Chapter 16: “Document History” Holds all document changes

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1.5. Text Conventions
Danger –This information MUST be followed or catastrophic equipment failure or
bodily injury may occur.
Caution or Warning –Alerts the user to important points about integrating the
module, if these points are not followed, the module and end user equipment may
fail or malfunction.
Tip or Information –Provides advice and suggestions that may be useful when
integrating the module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
1.6. Related Documents
•Telit GSM/GPRS Family Software User Guide, 1vv0300784
•Audio settings application note , 80000NT10007a
•Digital Voice Interface Application Note, 80000NT10004a
•GE866-QUAD Product description, 80416ST10122A
•SIM Holder Design Guides, 80000NT10001a
•AT Commands Reference Guide, 80000ST10025a
•Telit EVK2 User Guide, 1vv0300704

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2. Overview
The aim of this document is the description of some hardware solutions useful for
developing a product with the Telit GE866-QUAD module.
In this document all the basic functions of a mobile phone will be taken into account;
for each one of them a proper hardware solution will be suggested and eventually
the wrong solutions and common errors to be avoided will be evidenced. Obviously
this document cannot embrace all hardware solutions and products that may be
designed. Avoiding the wrong solutions shall be considered as mandatory. While the
suggested hardware configurations shall not be considered mandatory, the
information given shall be used as a guide and a starting point for properly
developing your product with the Telit GE866-QUAD module.
NOTE:
The integration of the GSM/GPRS GE866-QUAD cellular module within user
application shall be done according to the design rules described in this manual.
The information presented in this document is believed to be accurate and reliable.
However, no responsibility is assumed by Telit Communications S.p.A. for its use, nor
any infringement of patents or other rights of third parties which may result from its
use. No license is granted by implication or otherwise under any patent rights of Telit
Communications S.p.A. other than for circuitry embodied in Telit products. This
document is subject to change without notice.

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3. GE866-QUAD Mechanical Dimensions
The GE866-QUAD overall dimensions are:
•Length: 19 mm
•Width: 15 mm
•Thickness: 2.2 mm
•Weight: 1.5 gr
Figure 1

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4. GE866-QUAD module connections
4.1. PIN-OUT
Pad
Signal
I/O
Function
Note
Type
Audio
E7
EAR-
AO
Earphone signal output, phase -
Audio
D7
EAR+
AO
Earphone signal output, phase +
Audio
G7
MIC-
AI
Mic. signal input; phase-
Audio
F7
MIC+
AI
Mic. signal input; phase+
Audio
F6
AGND
-
Analog Ground
Power
SIM card interface
C7
SIMVCC
-
External SIM signal –Power supply for the SIM
1,8 / 3V
B7
SIMRST
O
External SIM signal –Reset
1,8 / 3V
A7
SIMCLK
O
External SIM signal –Clock
1,8 / 3V
A6
SIMIO
I/O
External SIM signal –Data I/O
4.7k Pull up
1,8 / 3V
X
All GPI0
can be
program
med
SIMIN
I
Presence SIM input
CMOS 1.8V
Trace
C2
RXD_AUX
I
Auxiliary UART (RX Data)
CMOS 1.8V
C1
TXD_AUX
O
Auxiliary UART (TX Data)
CMOS 1.8V
Prog. / Data + HW Flow Control
B2
C109/DCD/GPO
O
Output for Data carrier detect signal (DCD) to DTE
/ GP output
CMOS 1.8V
B3
C125/RING/GPO
O
Output for Ring indicator signal (RI) to DTE
/ GP output
CMOS 1.8V
A3
C107/DSR/GPO
O
Output for Data set ready signal (DSR) to DTE
/ GP output
CMOS 1.8V
A2
C108/DTR/GPI
I
Input for Data terminal ready signal (DTR) from DTE
/ GP input
CMOS 1.8V
A1
C105/RTS/GPI
I
Input for Request to send signal (RTS) from DTE
/ GP input
CMOS 1.8V
B1
C106/CTS/GPO
O
Output for Clear to send signal (CTS) to DTE
/ GP output
CMOS 1.8V
A4
C103/TXD
I
Serial data input (TXD) from DTE
CMOS 1.8V
A5
C104/RXD
O
Serial data output to DTE
CMOS 1.8V
DAC and ADC
F4
ADC_IN
AI
Analog/Digital converter input
A/D
E4
DAC_OUT
AO
Digital/Analog converter output
D/A
Miscellaneous Functions
F5
VRTC
AO
VRTC Backup
2.3V
Power

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Pad
Signal
I/O
Function
Note
Type
G4
RESET*
I
Reset input
CMOS 1.8V
G6
V_AUX / PWRMON
O
1.8V stabilized output Imax=100mA
/ Power ON monitor
Power Out 1.8V
G2
Antenna
I/O
Antenna pad –50 Ω
RF
GPIO
C5
GPIO_01 / DVI_WA0
I/O
GPIO01 Configurable GPIO
/ Digital Audio Interface (WA0)
CMOS 1.8V
C6
GPIO_02 / JDR /
DVI_RX
I/O
GPIO02 I/O pin
/ Jammer Detect Report
/ Digital Audio Interface (RX)
CMOS 1.8V
D6
GPIO_03 / DVI_TX
I/O
GPIO03 GPIO I/O pin
/ Digital Audio Interface (TX)
CMOS 1.8V
D5
GPIO_04 / TX Disable
/ DVI_CLK
I/O
GPIO04 Configurable GPIO
/ TX Disable input
/ Digital Audio Interface (CLK)
CMOS 1.8V
B5
GPIO_05 / RFTXMON
I/O
GPIO05 Configurable GPIO
/ Transmitter ON monitor
CMOS 1.8V
B4
GPIO_06 / ALARM /
BUZZER
I/O
GPIO06 Configurable GPIO
/ ALARM
CMOS 1.8V
C4
GPIO_07 / STAT_LED
I/O
GPIO07 Configurable GPIO
CMOS 1.8V
Power Supply
E2
VBATT
-
Main power supply (Baseband)
Power
E1
VBATT_PA
-
Main power supply (Radio PA)
Power
F6
AGND
-
AF Signal Ground (see audio section)
AF Signal
D1
GND
-
Ground
Power
F1
GND
-
Ground
Power
G1
GND
-
Ground
Power
D2
GND
-
Ground
Power
F2
GND
-
Ground
Power
C3
GND
-
Ground
Power
E3
GND
-
Ground
Power
F3
GND
-
Ground
Power
G3
GND
-
Ground
Power
RESERVED
D3
-
D4
-
E5
-
G5
-
B6
-
E6
-
WARNING:
Reserved pins must not be connected.

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WARNING:
VAUX output must not be used to supply any device on the customer application.
It is only provided as reference/supply voltage when voltage translation to 1V8 CMOS
is needed.
When its use is necessary, it is strongly recommended to connect VAUX through a
series resistor as closed as possible to the module in order to reduce the inrush
current of the internal DC/DC supply. Use a low value resistor (e.g. 10 ohm, 1/3W)
with a maximum power rating related to drained current.
NOTE:
If not used, almost all pins should be left disconnected. The only exceptions are the
following pins:
Pin
signal
E2, E1
VBATT & VBATT_PA
D1, F1, G1, D2, F2, C2,
E3, F3, G3
GND
F6
AGND
A4
TXD
A5
RXD
A1
RTS

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4.2. Pin Layout
TOP VIEW
A
B
C
D
E
F
G
1
C105/RTS
C106/CTS
TXD_AUX
GND
VABTT_PA
GND
GND
2
C108/DTR
C109/DCD
RXD_AUX
GND
VABTT
GND
ANT
3
C107/DSR
C125/RING
GND
RESERVED
GND
GND
GND
4
C103/TXD
GPIO_06/
ALRM/
BUZZER
GPIO_07/
STAT_LED
RESERVED
DAC_OUT
ADC_IN
RESET*
5
C104/RXD
GPIO_05/
RFTXMON
GPIO_01/
DVI_WAO
GPIO_04/
TX_DIS/
DVI_CLK
RESERVED
VRTC
RESERVED
6
SIMIO
RESERVED
GPIO_02/
JDR/
DVI_RX
GPIO_03/
DVI_TX
RESERVED
AGND
V_AUX/
PWRMON
7
SIMCLK
SIMRST
SIMVCC
EAR+
EAR-
MIC+
MIC-
AUDIO
ANTENNA
SIM
RESERVED/FU
MISCELLANOUS
POWER
SERIAL
GND
GPIO
NOTE:
The pins defined RESERVED must not be connected to any pin in the application.

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5. Hardware Commands
5.1. Auto-Turning ON the GE866-QUAD
To Auto-turn on the GE866-QUAD, the power supply must be applied on the power
pins VBATT and VBATT_PA, after 1000 m-seconds, the V_AUX / PWRMON pin will be
at the high logic level and the module can be considered fully operating.
When the power supply voltage is between 3.22V and 3.4V, after 5000 m-seconds, the
V_AUX / PWRMON pin will be at the high logic level and the module can be
considered fully operating.
The following flow chart shows the proper turn on procedure:
Modem ON Proc.
PWR supply = ON?
Y
Delay 1s - 5s for Low
Voltage Operating
Y
Modem Reset Proc.
AT init sequence.
N
Start AT CMD.
N
PWMON = ON?
Y
PWMON = ON?
Delay 300mS
Enter AT<CR>
AT answer in
1second ?
N
Y
N
Delay 1s

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NOTE:
The power supply must be applied either at the same time on pins VBATT and
VBATT_PA, or first applied on VBATT_PA and then on VBATT. The opposite sequence
shall be avoided. The reverse procedure applies for powering down the module: first
disconnect VBATT, then VBATT_PA, or both at once.
NOTE:
In order to prevent a back powering effect it is recommended to avoid having any
HIGH logic level signal applied to the digital pins of the GE866-QUAD when the
module is powered OFF or during an ON/OFF transition.
A flow chart showing the AT commands managing procedure is displayed below:
Modem ON Proc.
Disconnect PWR
supply
AT init sequence.
Delay 300mS
Enter AT<CR>
AT answer in
1second?
Y
N
Start AT CMD.

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