SIRETTA ZEST SERIES Guida rapida per l'utente
inspired wireless technology
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
Hardware Reference Manual
Rev 1.5
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
2
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
Table of Contents
Page
Introduction 3
About Siretta 4
General Description 5
Specications 6
AT Commands 7
ZEST Interface 8
System Diagram 10
System Overview 11
Modes of Operation 12
Ordering Information 13
Dimensions 14
DIN Rail Mount 16
Mounting the ZEST 16
Removing the ZEST 16
ZEST Series Images 17
ZEST LED Indicator 18
Modem States 19
Interfaces 20
RS232 Serial Port Interface 20
RS485 Serial Port Interface (Optional) 22
ZEST-UMTS USB Serial Port Interface 23
USB Interface Drivers 24
SIM Socket 26
SIM Requirements 26
Antenna Connector 27
GSM/UMTS Antenna Connector 27
Power 29
ZEST-GPRS USB Power Connector 29
Power Connector
(2-pin 3.5mm Pluggable Terminal Block)
30
Power Supply Requirements 31
Current Consumption 33
Switching the Modem ON/OFF 34
Embedded Software Support 36
Telit AppZone 36
Telit Easy Script in Python 37
Siretta Recommends 38
Installation 40
Considerations for Installations
Incorporating the ZEST
40
Power Supply Installation 41
Securing the Modem 41
Safety and Product Care 42
General Precautions 42
SIM Card Precautions 42
Antenna Precautions 43
Exposure to RF Energy 43
Safety Recommendations 45
Conformity Assessment 46
Disclaimer 47
Denitions 48
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
3
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
This document is intended to provide guidance when adding a modem from the
ZEST Series to your system.
The ZEST series of GPRS/UMTS M2M modems are a low cost range of modems
developed for easy integration into existing systems and for embedded application
development.
The ZEST modem range is based on the Telit xL865 GPRS/UMTS module series
without GPS. The modem manages the module power up sequence and can be
programmed to perform additional custom tasks.
This document discusses the modems hardware and software states and modes
of operation, in addition to the electrical characteristics of the modems interfaces.
Introduction
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
4
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
Siretta, located in Reading, United Kingdom have been manufacturing antennas,
cable assemblies and cellular modems for over 10 years. We supply our products
globally to many of the world’s leading organizations.
Whether you require an off the shelf or custom solution, Siretta has a wide portfolio of
antenna, RF cable assemblies and modems to t your application.
Our extensive knowledge and experience in the wireless market allows us to support
a wide range of customer applications, focusing on frequencies typically within the
75MHz - 5.8GHz range. These encompass the HF, VHF, ISM, GSM/GPRS/3G/4G
and GPS frequencies as well as industrial WLAN and VHF/UHF antenna/Wi-Fi
antenna solutions.
With a heavy emphasis on design, we have a team of dedicated Application
Engineers and Product Managers, backed up by Field Sales Engineers, who
specialise in wireless applications.
We have made signicant investments in R&D facilities which boast GPS hardware
development equipment and a GSM Pico Cell on site, as well as development
software and a comprehensive suite of Industrial, Scientic and Medical band, and
non ISM band frequency products. We have many technology partners enabling us to
keep at the forefront of the communications industry and offer class leading wireless
solutions.
About Siretta
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
5
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
The ZEST range of wireless modems is a compact cellular modem with RS232 port
(RS232 and USB on 3G model) and plastic housing, offering state-of-the-art 2G/3G
connectivity for machine to machine (M2M) applications.
Features
»Control via AT commands (Hayes 3GPP TS 27.007 and 27.005)
»TCP/IP, SMS and CSD access via AT commands
»1 x RS232 serial port
»1 x mini USB 2.0 high speed interface (available on 3G model only)
»Wide range input voltages
»Extreme operating temperature
»The plastic enclosure can be mounted on a DIN-rail or on the wall
General Description
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
6
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
Specications
ZEST-GPRS ZEST-UMTS
Standards: GSM/GPRS/EDGE GSM/GPRS/EDGE/UMTS/HSDPA/HSPA+
2G frequency band: 900, 1800MHz (EU Version) 900, 1800MHz (EU Version)
3G frequency band: -900, 2100MHz (EU Version)
Dimensions: 75 x 84 x 31mm 75 x 84 x 31mm
Weight: 105g 105g
Input voltage: 6 - 18V 6 - 26V
Power consumption: Idle: 50 - 60mA @ 12V Idle: 50 - 60mA @ 12V
Operating environment: -40 to +85°C
5 to 95% RH
-40 to +85°C
5 to 95% RH
GSM antenna connector: SMA Female SMA Female
USB interface: Mini USB (Power only) Mini USB 2.0 (Serial data and power)
Table 1. Specications of the ZEST modem
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
7
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
AT Commands
The ZEST range of wireless modems has a GSM engine at its heart which can be
controlled via the serial interface using standard AT commands.
The AT command is an ATTENTION command and is used as a prex to other
parameters in a formatted string. The AT command combined with other parameters
can be sent to the modem with your preferred modem emulator package (TMSTerm/
TeraTerm/HyperTerminal) and typed in manually as a command line instruction.
The wireless module is compliant with the following AT command formats:
1) Hayes standard AT command set, in order to maintain the compatibility with
existing SW programs.
2) 3GPP 27.007 specic AT command and GPRS specic commands.
3) 3GPP 27.005 specic AT commands for SMS (Short Message Service) and CBS
(Cell Broadcast Service)
4) FAX Class 1 compatible commands
5) Proprietary command set, the module family also supports a proprietary set of AT
commands for special purposes outside of the standard AT specication.
To obtain the latest AT command reference guide* with a full list of supported AT
commands, please contact your Siretta representative or alternatively visit:
www.siretta.co.uk
NOTE - This following document refers to useful AT commands throughout and offers
descriptions of how to use the AT commands with the ZEST wireless modems.
*For GPRS modems refer to the GPRS AT Command Manual, for UMTS modems refer to the
UMTS AT Command Manual.
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
8
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
ZEST Interface
Standard Hardware Interfaces
The ZEST series modem comes with the following interfaces:
»1 x RS232 serial port interface for direct serial connection to module
»ZEST-GPRS: 1 x mini USB (Power only)
ZEST-UMTS: 1 x mini USB 2.0 (Serial data and power)
»1 x power connector (2-pin 3.5mm pluggable terminal block)
»1 x SMA female GSM antenna connector
»1 x SIM card reader (push-push)
»1 x external LED status indicator (Green)
Cellular Interface
The ZEST series modem comes with the following cellular interfaces:
»GPRS: Max 6.8kbps (DL & UL), Class 10
»EDGE: Max 236.8kbps (DL & UL), Class 12
»UMTS: Max 384kbps (DL & UL)
»HSDPA: Max 3.6Mbps / 384kbps (DL / UL)
»HSPA+: Max 7.2 / 5.76Mbps (DL / UL)
»CSD: Up to 9.6kbps
RS232 Serial Interface
The ZEST series modem comes with the following RS232 port interfaces:
»ESD protection: 15KV
»Parameters: 1200bps to 115200bps
»RS232: DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
USB Port Interface
The ZEST series modem comes with the following USB port interfaces:
»ESD protection: 15KV
»5V power supply for modem
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
9
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
Optional Gateway Software Package
The ZEST series modems have the following optional software packages available:
»V-Link232 Software
Wireless cable replacement using RS232 serial cable over GPRS/UMTS
Optional Coverage
The ZEST series modems have the following coverage options available:
»(EU) European Union
»(NA) North America
Optional Technologies
The ZEST series modems have the following optional technologies available:
»European GPRS (2G)
»European UMTS (3G)
Optional Modem Features*
Optional Hardware
The ZEST series modems have the following optional hardware features:
» RS485 serial port (serial interface: Data+ (A), Data- (B), GND)
*To add optional features on your modem, see ordering Information on page 13
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
10
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
System Diagram
Figure 1. ZEST system diagram
The ZEST is the latest in the Siretta range of cellular modems. It is the lowest cost of
the range and is ideal if all you need is straightforward GPRS connectivity - simply. It
competes strongly on its robust and industrial spec using Telit technology and with
RS232 and USB interfaces*.
GSM
PSU Power Input
SIM
RS232 Serial Port Interface
Visual Indicators
Power Supply Subsection
Communication Subsection
USB Port
Telit xL865 Module
* USB interface only provides power for ZEST-GPRS and provides serial data and power for
ZEST-UMTS.
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