CEP Terminals GT910 G User manual

GT910 G Terminal
User Manual
Revision 1.0

2
Important information
This technical description contains important information for the installation and use of the
GT910 G terminal. Read it carefully before you start working with the GT910 G terminal.
We cannot be held responsible for material loss or personal in ury that is due to non-compliance
with the safety instructions. The warranty will be void in such circumstances.
Telic reserves the right to change the included information without prior notice and does not
take responsibility for errors in the document and/or for any missing information.

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Table of Contents
Important information ...................................................................................................................................................... 2
1 General Information ................................................................................................................................................. 6
1.1 Contact for Support .......................................................................................................................................... 6
1.2 Conventions Used in this Manual ..................................................................................................................... 6
1.3 Related Documentation .................................................................................................................................... 7
1.4 Abbreviations .................................................................................................................................................... 7
1.5 Revision History................................................................................................................................................. 8
2 Product Description .................................................................................................................................................. 9
2.1 Overview ........................................................................................................................................................... 9
2.2 Identification ................................................................................................................................................... 10
2.3 Physical Dimensions and Weight .................................................................................................................... 10
2.4 Product Features and Technical Data ............................................................................................................. 11
2.5 Telic Certified Accessories ............................................................................................................................... 13
3 Safety and Product Care ......................................................................................................................................... 15
3.1 Audience and Intended Use ............................................................................................................................ 15
3.2 Safety instructions .......................................................................................................................................... 15
3.3 General precautions ........................................................................................................................................ 16
3.4 SIM card precautions ...................................................................................................................................... 16
3.5 Antenna precautions ....................................................................................................................................... 17
3.6 Storage Conditions .......................................................................................................................................... 17
4 Electrical Description .............................................................................................................................................. 18
4.1 Power Connector ............................................................................................................................................ 18
4.2 Antenna Connector ......................................................................................................................................... 19
4.3 SIM card holder ............................................................................................................................................... 19
4.4 RS232 Serial Port ............................................................................................................................................. 19
4.4.1 Serial Data ............................................................................................................................................... 20
4.5 Mini USB Connector ........................................................................................................................................ 20
5 Operation ................................................................................................................................................................ 22
5.1 Switch ON the modem .................................................................................................................................... 22
5.2 Configuration of the bit rate on the serial interface ....................................................................................... 23
5.3 Power cycle the modem ................................................................................................................................. 23

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5.4 Using low power mode of the modem ........................................................................................................... 23
5.4.1 Enabling the low power mode ................................................................................................................ 23
5.4.2 Disabling the low power mode by user .................................................................................................. 24
5.4.3 Disabling the low power mode upon receiving GSM activity ................................................................. 24
5.5 Operating states / green LED .......................................................................................................................... 24
5.6 Current consumption Measurements ............................................................................................................. 24
6 Installation of the modem ...................................................................................................................................... 26
6.1 Where to install the modem ........................................................................................................................... 26
6.1.1 Environmental conditions ....................................................................................................................... 26
6.1.2 GSM Signal strength ................................................................................................................................ 26
6.1.3 Connection of components to the GT910 G terminal ............................................................................. 26
6.1.4 Network and Subscription....................................................................................................................... 26
6.2 How to install the modem .............................................................................................................................. 26
6.2.1 Power supply ........................................................................................................................................... 26
6.2.2 Securing the modem ............................................................................................................................... 27
6.3 Antenna ........................................................................................................................................................... 27
6.3.1 General .................................................................................................................................................... 27
6.3.2 Antenna type ........................................................................................................................................... 27
6.3.3 Antenna placement ................................................................................................................................. 27
6.3.4 The antenna cable ................................................................................................................................... 27
6.3.5 Possible communications disturbances .................................................................................................. 28

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Table Overview
Table 1: Abbreviation ........................................................................................................................................................ 7
Table 2: Documentation Change Log ................................................................................................................................ 8
Table 3: Feature Overview .............................................................................................................................................. 12
Table 4: Accessories List .................................................................................................................................................. 14
Table 5: RJ11 Pin and Signals Description ....................................................................................................................... 19
Table 6: Electrical characteristics of the serial port signals ............................................................................................ 20
Table 7: Operating states of the green LED .................................................................................................................... 24
Table 8: Power consumption in standby, idle and low power mode and active call...................................................... 25
Figure Overview
Figure 1: Connector on rear side of the Terminal ............................................................................................................. 9
Figure 2: Connectors on front side of the Terminal .......................................................................................................... 9
Figure 3: Drawing of the Terminal’s Housing .................................................................................................................. 11
Figure 4: RJ11 Pin Connector .......................................................................................................................................... 18
Figure 5: Mini USB Type A/B connector for GT910 G ..................................................................................................... 21
Figure 6: Looping the DSR with DTR pins to permanently deactivate low-power mode. .............................................. 23

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1General Information
This User Manual consists of the following chapters:
Chapter
Description
1
General Information
provides basic information such as the conventions for the warnin
g
levels, applicable related documentations, used abbreviations, a revision history and
contact information.
2
Product Description
provides a brief overview about
the mechanical specification of the
product (including size and weight) as well as an overview of the functions and features
of the device as well as the available accessories.
3
Safety and Product Care
addresses the audience for this manual, the indented use of this
device and safety-related information important to read before using the device.
Electrical Des
cription
describes the electrical characteristics and pin allocation of the
device’s connectors.
5
O
peration
provides details relating to the commissioning of the device, including det
ails
on activating special features such as the low power mode.
6
Installation of the modem
provides important instructions about how to install the
device for the M2M application.
1.1 Contact for Support
Please submit your request to TELIC AG customer support using the following online form:
http://www.telic.de/en/support/support-request
Information about Telic AG, products and accessories, including FAQs, are available from the following
web site: http://www.telic.de.
1.2 Conventions Used in this Manual
The following conventions for warning levels are used in this manual:
Warning
Warnings against hazards that may result directly in serious injuries or death in case of non-
observance.
Caution
Warnings against hazards that may result in injuries in case of non-observance.

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NOTICE
Warnings against hazards that may result in material damage in case of non-observance.
Indicates that the device can be damaged by electrostatic discharge.
This note contains helpful suggestions or references to material not covered in the document.
1.3 Related ocumentation
Please consult the download zone of the Telic AG website for additional documents related to GT910 G, such as
AT command manuals. Note that such type of documents can be accessed online only after you have registered
on our website and agreed with our terms of use. Please follow this link to register for a user account:
http://www.telic.de/en/nda-reg-form
Use the following link to login if you already have a valid user account:
http://www.telic.de/en/en-login
1.4 Abbreviations
Abbreviation Explanations
DCE Data Circuit Terminating Equipment
DTE
Data Terminal Equipment
GPRS
General Packet Radio Service
GSM
Global System for Mobile Communication
ME
Mobile Equipment
MO
Mobile Originated
MS
Mobile Station
PDU
Protocol Data Unit
RF
Radio Frequency
SIM
Subscriber Identity Module
SMS
Short Message Service
TA
Terminal Adapter
TE
Terminal Equipment
TS
Telecom Services
Table 1: Abbreviation

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1.5 Revision History
Revision Date Changes
1.0 23.02.2017 Initial version
Table 2: Documentation Change Log

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2Product Description
2.1 Overview
The pictures below show the mechanical design of the GT910 G terminal along with the positions of the
different connectors and mounting holes. The GT910 G terminal case is made of durable PC/ABS plastic.
Figure 1: Connector on rear side of the Terminal
Figure 2: Connectors on front side of the Terminal

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Please note the following:
The terminal can be securely fitted into your application by using the mounting holes positioned at the two
corners of the device.
The SIM card can be inserted into the modem without the need for any tools.
Section 4 Electrical Description“2. Electrical Description” describes the pins and electrical characteristics or
of the modem’s terminal’s various connectors are described in
Section 4.2 Antenna Connector“2.3 Antenna Connector” provides information about the antenna connector
is found in “2.3 Antenna Connector”
Special DIN Rail Mounting Brackets (Art-nr. 12304 or Art-nr. 12305) is available as an accessory
item which allows installation of the modem in industrial environments using DIN Rails. For
more details of our accessories please check chapter 2.5 Telic Certified Accessories.
2.2 Identification
On the bottom of the device, you will find the type label.
Label
Description
S/N
Serial number
1
Serial number
IMEI
International Mobile
Equipment Identity
FW
GSM firmware version
HW
-
Rev.
Hardware Revision
Number + Production date
Input
Supply Voltage Range
CE conformity mark
Disposal in accordance
with European Directive
2002/96/CE
2.3 Physical imensions and Weight
Overall dimensions: 77 x 67 x 26 mm
Weight: 91g
1
Note that the serial number consists of a 5-digit product ID followed by the device’s IMEI.

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Figure 3: Drawing of the Terminal’s Housing
2.4 Product Features and Technical ata
NOTICE
Telic AG may, at any time and without notice, make changes or improvements to the products and
services offered and / or cease producing or commercializing them.
NOTICE – Optional Features
Features identified as “Optional” in this document are not assembled by default. Please contact our
Sales Team at http://www.telic.de/en/contact-us to clarify the details of ordering terminal variants.
Category Features Details
Air Interface
GSM/GPRS Frequency Bands 850 / 900 / 1800 / 1900 MHz
GPRS Class Class 10
GPRS Features
Mobile station class B
Coding scheme 1 to 4
PBCCH support
NACC, Extended TBF
Output Power Class 4 (2W) for GSM850/GSM900
Class 1 (1W) for GSM1800/GSM1900
USSD Supported
SMS Text and PDU mode, Cell Broadcast, SMS
over GPRS

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Additional Wireless Features DARP Support
Hardware Features
IP Protection IP 40
Memory 2 MB RAM / 5 MB Flash
SIM Card Holder 1x (1,8/3 Volt)
SIM Chip Option Assembly Option
LEDs 1 GSM
Type Approvals CE
Connectors
D-Sub (9-pin) 1x Female (RS232)
USB 1x Mini-USB (USB 2.0)
RJ11 1x Power + IOs (1x Analogue Input; 1x
Output)
FME 1x Male (Antenna)
Software
AT Command Set TS 27.005, 27.007 and Telit custom AT
Programming Language Python
C APIs for Telic AppZone
Firmware Update Serial / FOTA
TCP/IP Stack Yes
Cellular Positioning Telit IoT Locate
Jamming Detection Yes
Power Management
Voltage Range 5V - 32V
Power Cons. (Idle Mode) typ. 19 mA @ 12V
Power Cons. (Low Power
Mode) typ. 2 mA @ 12V
USB Host Powered Optional
Hardware Characteristics
Operating Temperature -30°C to +75°C
Dimensions 77x66x26 mm
Weight 91g
Table 3: Feature Overview

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2.5 Telic Certified Accessories
Art
-
Nr.
Description
Antennas
1202
0
Patch Antenna; FME female connector,
self-adhesive, waterproof, GSM: 900,
1800, 1900 MHz; UMTS: 2100 MHz
12021
Magnetic Antenna; FME female
connector, GSM: 900, 1800 MHz, UMTS:
2100 MHz
12019
Stub Antenna; FME female,
GSM:
900
,
1800 MHz; UMTS 2100 MHz
12016
Rectangular Antenna; FME
female,
GSM:
900, 1800 MHz; UMTS: 2100 MHz
12006
Roof
-
mount antenna; FME female
waterproof, 900, 1800, 1900, 2100, 2400
MHz
Others
12004
RS232 cable
(V.24 compliant)
; 1.5m for
PC connection

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12304
Mounting Bracket for DIN Rail; Terminal
Mounting bracket for DIN Rail
(rectangular)
12305
Mounting Bracket for DIN Rail; Terminal
Mounting bracket for DIN Rail (straight)
12002
Power supply 230V
AC / 12 VPC; 6pin
RJ11 connector
12003
Power
cable; 6pin RJ11 connector with
open ends; 1.5 m
12301
Mini USB cable
with open ends
~ 0.6 m
12302
USB
-
A to
Mini USB cable
;
1.0
m
Table : Accessories List
Please contact your distributor or Telic AG for availability or check Telic’s webpage http://www.telic.de.

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3Safety and Product Care
This device has been designed in accordance with industrial standards, manufactured with utmost care
using high-quality materials, and thoroughly tested. Nevertheless, its use may constitute a risk to persons
or cause material damage.
The following safety instructions must be followed to ensure the safety of users and of the device.
NOTICE
If these instructions are ignored, Telic AG will not assume responsibility for any damages that are
incurred. Telic AG may refuse warranty claims where evidence of product misuse is found.
Please read the information in this section and the information in Section 6 Installation of the modem before
starting your integration work!
3.1 Audience and Intended Use
This terminal product is targeted towards system integrators who need to add a wireless communications
link to their M2M / IoT application to capture data from the application as well as to remotely control
that application. Any other use is not intended.
3.2 Safety instructions
PLEASE READ THESE SAFETY INSTRUCTIONS AND KEEP A COPY OF THEM.
The GT910 G terminal contains highly integrated components which can be damaged by electrostatic
discharge if the user would open the housing.
Therefore, only touch the GT910 G terminal on the housing or connectors and avoid
touching the components on the board.
Always ensure that the use of the modem is permitted. The modem may present a hazard if used in the
proximity of personal medical electronic devices. As a rule, the modem must not be used in hospitals,
airports or planes.
Never use the modem at a gas station, refueling point, blasting area or in any other environment where
explosives may be present.
Operating the modem close to other electronic devices, such as antennas, television sets, and radios may
cause electromagnetic interference.
This product is intended to be used with the antenna or other radiating element at least 20 cm away from
any part of the human body. In applications where this rule cannot be applied, the application designer is
responsible for providing the SAR measurement test report and declaration.
You are responsible for observing your country's safety standards, and where applicable, the relevant wiring
rules.

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Warning
When using products which are exposed to electric voltage the valid regulations have to be
observed.
Always make sure that the device is disconnected from the power supply before opening it.
You should only use tools on components, modules or devices if they are disconnected from the power
supply and the electric charge, which may still be stored in some components inside the device, has been
discharged.
All cables and wires which are energized and connected to the device, the module or components must
be checked regularly for any damage of the isolation shield or fractures of the cables. If the supply cables
are visibly damaged the device must be taken out of operation immediately until the faulty cable has
been replaced.
When using components or modules, the specification given in the corresponding description of these
components must strictly be observed. The device shall be operated only by appropriately qualified
personnel.
This device shall only be used for its intended purpose.
Please note that we are not responsible for any errors in usage of wireless connections. Therefore, we
cannot accept any responsibility for consequential loss.
In case measurements with the opened housing are necessary, an isolating-transformer must be
integrated for safety reasons. Alternatively, the voltage can be supplied by an appropriate power supply
which complies with the safety regulations. All wiring work must be done in a voltage free state only.
3.3 General precautions
The GT910 G terminal as a stand-alone item is designed for indoor use only. To use outside it must be
integrated into a weatherproof enclosure. Do not exceed the environmental and electrical limits as
specified in Section 2.4 Product Features and Technical Data.
Avoid exposing the modem to lighted cigarettes, naked flames or to extreme hot or cold temperatures.
Never try to dismantle the modem yourself. There are no components inside the modem that can be
serviced by the user. If you attempt to dismantle the modem, you will invalidate the warranty.
The GT910 G terminal must not be installed or located where the surface temperature of the plastic case
may exceed 80°C.
All cables connected to the GT910 G terminal must be secured or clamped, immediately ad acent to the
modem's connectors, to provide strain relief and to avoid transmitting excessive vibration to the modem in
the installation.
Ensure the cables, supplying power, and input cable to the GT910 G terminal do not exceed 3 meters.
To protect power supply cables and meet the fire safety requirements when the unit is powered from a
battery or a high current supply, connect a fast 1.25A fuse in line with the positive supply.
Do not connect any incompatible component or product to the GT910 G terminal.
3.4 SIM card precautions
Before handling the SIM card in your application, ensure that you are not charged with static electricity.
Use proper precautions to avoid electrostatic discharges.

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When the SIM card hatch is opened, the SIM card connectors lie exposed under the SIM card holder.
Caution! Do not touch these connectors! If you do, you may release an electrical
discharge that could damage the modem or the SIM card.
When designing your application, the SIM card’s accessibility should be considered. We always
recommend that you have the SIM card protected by a PIN code. This will ensure that the SIM card cannot
be used by an unauthorized person.
3.5 Antenna precautions
Consider the risk of lightning in case the antenna is to be mounted outside. Follow the instructions
provided by the antenna manufacturer.
NOTICE
Please note that this GSM/GPRS device is designed for use with one single antenna only. It does not
support antenna diversity.
Never connect more than one modem to a single antenna. The modem can be damaged by radio frequency
energy from the transmitter of another modem.
Like any mobile station, the antenna of the modem emits radio frequency energy. To avoid EMI
(electromagnetic interference), you must determine whether the application itself, or equipment in the
application’s proximity, needs further protection against radio emission and the disturbances it might cause.
Protection is secured either by shielding the surrounding electronics or by moving the antenna away from
the electronics and the external signals cable.
The modem and antenna may be damaged if either come into contact with ground potentials other than
the one in your application. Beware, ground potential is not always what it appears to be.
3.6 Storage Conditions
The following environmental limits must be maintained in order to safely store the terminal and ensure
that it remains functional until a maximum of 12 months:
Storage temperature: from 5°C to 35°C
Humidity: <75% relative humidity.

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Electrical Description
The modem uses the following standard connectors:
RJ11 6-way (power +IOs)
Mini USB (for data)
SIM card holder
FME male coaxial ack (antenna connector)
Sub-D female socket, 9 pin (RS232 serial port)
4.1 Power Connector
An RJ11 6-way connector, as shown and described below, serves as a means of supplying and controlling
DC power to the modem. The use of an external power supply is necessary as the USB port is not intended
to be used as power source.
2
The supply voltage VCC required by the modem is 5V - 32V DC. Please note that applying the supply
voltage does not switch the modem on. To do so an additional active-high control signal, TO_IN, must be
applied for > 1 second.
Please see chapter 5.1 Switch ON the modem for further important details about TO_IN and power supply
requirements, especially if TO_IN is applied in parallel to VCC.
VCC and GND are reverse-polarity and over-voltage protected as long as the antenna
interface and the user’s application are not used or connected to separate grounds.
Figure : RJ11 Pin Connector
PIN Signal Direction Limits Description
1
VCC
Input
5
–
32V
Positive power input, DC
2
ADC_IN
Input
0
-
3
2
V
Analogue Input
2
This Statement does not apply to the USB Host Powered version of the GT910 G.

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PIN Signal Direction Limits Description
3
EMERG_OFF
Input
5
–
32V
Active high control line used to
switch off the terminal
V IH > 5V, V IL < .5V
Power off: t >1s
4
TO_IN
Input
5
–
32V
Positive edge triggered signal;
used to switch on the modem
V IH > 5V, V IL < 0.5V
Power on: t >1s after VCC
available
V IH = Voltage Input high
V IL = Voltage Input low
5
DIG_OUT
Output
5
-
VCC
(Optional)
Digital Output
VCC,
max. 400 mA
6
GND
Input
-
Negative power (ground) input
and return path for TO_IN and
EMERG_OFF
Table 5: RJ11 Pin and Signals Description
4.2 Antenna Connector
The antenna connector on the modem is assembled with an FME male coaxial ack. The customer-
selected antenna should fulfil the following requirements:
Frequency range: Depending on the frequency band(s) provided by the network operator, the customer
shall use the most suitable antenna for that/those band(s)
Bandwidth:
-70 MHz in GSM 850
-80 MHz in GSM 900
-170 MHz in DCS Band
-140 MHz in PCS Band
Impedance: 50 Ohm
Antenna Gain:
-GSM 850: < 6.43 dBi
-PCS 1900: < 2.75 dBi
Input Power: > 2 W
VSWR absolute max.: ≤ 10:1 (limit to avoid permanent damage)
VSWR recommended ≤ 2:1 (limit to fulfill all regulatory requirements)
Length of the antenna cable: <3m
4.3 SIM card holder
The Terminal is fitted with a SIM card holder designed for 1.8V and for 3V SIM cards. It is the flip-up type
which is lockable in the horizontal position and is accessed through a removable panel.
4.4 RS232 Serial Port

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The modem supports a standard RS232 serial interface via its 9 pin Sub-D connector, shown below. In
line with serial communication terminology the Terminal should be considered as the data circuit-
terminating equipment (DCE) and the external application or computer as the data terminating
equipment (DTE). The maximum data rate to communicate with the GT910 G terminal is 921,6 kBaud.
PIN
Signal
Direction
Limits
Description
1
DCD
Output
> + 4V
<- 4 V
Data carrier detect
2
RD
Output
> + 4V
<- 4 V
Received data
3
T
D
Input
> + 2,4V
< 0.8 V
Transmitted data
4
DTR
Input
> + 4V
< 0.8 V
Data terminal ready
5
GND
-
0 V
Ground connection
6
DSR
Output
> + 4V
< - 4 V
Data set ready
7
RTS
Input
> + 2,4V
< 0.8 V
Request to send
8
CTS
Output
> + 4V
< - 4 V
Clear to send
9
RI
Output
> + 4V
< - 4 V
Ring indicator
Table 6: Electrical characteristics of the serial port signals
. .1 Serial Data
The modem supports the standard data character format of
Programmable baud rate
Auto-configuration mode with auto-baud.
4.5 Mini USB Connector
Figure 5: Mini USB Type A/B connector gives an overview about the PIN Assignment of the Mini USB
connector from the Standard GT910 G terminal.
The modem supports a standard USB 2.0 Full Speed slave interface to receive AT-commands as well as
data transmissions.
Drivers for Windows Desktop, Windows CE Embedded and instructions for Linux are available for
download from the Telic AG website (for registered users only).