SIRETTA ZEST SERIES Hardware Reference Manual

Gprs/umts wireless modem with rs232 interface
Hide thumbs Also See for ZEST SERIES:

Advertisement

Quick Links

inspired wireless technology
ZEST Series
GPRS/UMTS Wireless Modem with
RS232 Interface
Hardware Reference Manual
Rev 1.5

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ZEST SERIES and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for SIRETTA ZEST SERIES

  • Page 1 ZEST Series GPRS/UMTS Wireless Modem with RS232 Interface Hardware Reference Manual Rev 1.5...
  • Page 2: Table Of Contents

    Installation DIN Rail Mount Considerations for Installations Mounting the ZEST Incorporating the ZEST Removing the ZEST Power Supply Installation ZEST Series Images Securing the Modem ZEST LED Indicator Safety and Product Care Modem States General Precautions Interfaces SIM Card Precautions...
  • Page 3: Introduction

    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.
  • Page 4: About Siretta

    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 fit your application.
  • Page 5: General Description

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface General Description 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.
  • Page 6: Specifications

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Specifications Table 1. Specifications of the ZEST modem 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)
  • Page 7: At Commands

    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.
  • Page 8: Zest Interface

    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 »...
  • Page 9 (EU) European Union » (NA) North America 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 *To add optional features on your modem, see ordering Information on page 13...
  • Page 10: System Diagram

    RS232 Interface 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*.
  • Page 11: System Overview

    If the embedded system has limited intelligence or has limited configuration capability the Siretta V-Link software can be used to connect the system to a central server easily and simply. The V-Link software can also be used to control and manage the remote modem so that the connection from the embedded system to the central server/control head office is seamless and reliable.
  • Page 12: Modes Of Operation

    The serial configuration supports most configurations and can be changed either via the USB interface, or via SMS commands. *NOTE: Requires additional hardware not supplied with the ZEST. Please speak to your Siretta representative for more information. Siretta Ltd sales...
  • Page 13: Ordering Information

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Ordering Information ZEST XXXX (XXXX) Modem Identifier ZEST = Wireless Modem with RS232 and USB Serial Port Interfaces Module Type N = Without GPS Product Module Version GPRS (EU) = European Coverage of GPRS Technology...
  • Page 14: Dimensions

    GPRS/UMTS Wireless Modem with RS232 Interface Dimensions All dimensions are shown in mm. The mounting holes are suitable for a M3 fixing screwing. These drawings are relevant for the entire ZEST series modems. 32.90 Figure 2. ZEST modem front view - dimensions 30.60 83.70...
  • Page 15 ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Figure 3. ZEST modem side view - dimensions 32.90 30.60 Siretta Ltd sales +44(0)118 976 9014 Basingstoke Road +44(0)118 976 9020 A member of the Olancha Group Ltd Spencers Wood email sales@siretta.co.uk...
  • Page 16: Din Rail Mount

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface DIN Rail Mount The ZEST has an integrated DIN rail mount housing which allows the unit to connect on to the standard rail widely used for mounting industrial control equipment inside equipment racks.
  • Page 17: Zest Series Images

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface ZEST Series Images Figure 6. 3D view of the ZEST Figure 7. ZEST power, USB & RS232 interfaces Figure 8. ZEST - DIN rail mounted Siretta Ltd sales +44(0)118 976 9014...
  • Page 18: Zest Led Indicator

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface ZEST LED Indicator The ZEST has 1 LED output that easily indicates the functional/operational state of the modem. Figure 9. LED Green LED Table 2. LED status Name Colour...
  • Page 19: Modem States

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Modem States The current modem state and function is shown below in table 3. Table 3. Modem states (assume AT#SLED=2 Current Modem State Input Next state Indication of new state...
  • Page 20: Interfaces

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Interfaces RS232 Serial Port Interface This connector provides a serial RS232 communication between the ZEST modem and the connected equipment. The modem can be configured via the RS232 connection using AT commands as specified in the AT command manual.
  • Page 21 ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface RS232 Male to RS232 Female Cable The RS232 serial cable is the standard cable used for connecting the ZEST modem to other devices such as a PC or industrial control equipment. The RS232 serial cable...
  • Page 22: Rs485 Serial Port Interface (Optional)

    Connected IN/OUT Not Connected Not Connected Not Connected For more information about the optional ZEST RS485 interface, please contact your Siretta representative or call us on +44(0)118 976 9014. Siretta Ltd sales +44(0)118 976 9014 Basingstoke Road +44(0)118 976 9020...
  • Page 23: Zest-Umts Usb Serial Port Interface

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface ZEST-UMTS USB Serial Port Interface A mini USB type B connector is provided for USB serial connection*. When the ZEST-UMTS USB interface is used for sending/receiving data as well as power supply, the current/voltage output of the USB interface can reach at least 1A/5V.
  • Page 24: Usb Interface Drivers

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface ZEST-UMTS USB to Mini USB Cable The USB to Mini USB cable allows you to connect to the ZEST-UMTS modem via the standard USB port. The Mini USB cable connects the modem to other devices such as a PC or industrial control equipment.
  • Page 25 ZEST-UMTS series modems is up to 12 Mbit/s. Drivers are required to use the USB port and are available for several operating systems including Windows/Linux. Please contact Siretta for more information. In HSDPA (High Speed Downlink Packet Access) mode, the downlink data speed rates can be up to 7.2Mbps.
  • Page 26: Sim Socket

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface SIM Socket The ZEST modem supports fixed SIMs locked to a network and roaming SIMs which can operate on more than one network within the home country. This allows for least cost routing for roaming mobile data and machine to machine applications where signal strength is variable in any given area and network selection is required.
  • Page 27: Antenna Connector

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Antenna Connector Figure 20. Antenna connector GSM antenna connector Antenna Placement When in service the antenna should be placed away from electronic devices or other antennas. The recommended minimum distance between adjacent antennas, operating on a similar radio band, is at least 50cm.
  • Page 28 » GSM Antenna The GSM antennas we recommend to use for the ZEST series is the Mike 1A SMA male magnetic mount antenna and the Delta 1A SMA male stubby antenna, (Most other Siretta styles of GSM antennas are usable depending on customer preference).
  • Page 29: Power

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Power ZEST USB Power Connector The mini USB type B connector is provided for power connection to the modem. the current/voltage output of the USB interface can reach at least 1A/5V. Pins on this connector are shown in table 7 below.
  • Page 30: Power Connector

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Power Connector (2-pin 3.5mm Pluggable Terminal Block) A 2-pin 3.5mm pluggable terminal block is used for supplying DC power to the modem. Figure 24. Terminal block power connector Figure 25. Pin numbering Power connector Table 8.
  • Page 31: Power Supply Requirements

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Power Supply Requirements A DC power supply must be connected to the power input. Table 9. Characteristics of power input ZEST GPRS ZEST UTMS DC input voltage 6 to 18V...
  • Page 32: A Member Of The Olancha Group Ltd

    The Siretta power supply for the range of modems provides an industry standard output which is compatible across the range of Siretta modems. With a stable 12V output voltage, the Modem PSU offers a wide input voltage as well as being highly efficient.
  • Page 33: Current Consumption

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Current Consumption The measurement was taken with 2 Voltages (5V, 12V). The modem was connected via RS232 to a PC in order to send/receive AT commands. The temperature was maintained in a temperature chamber. The voice call with power level 5 in GSM 900 was established with a GSM signal generator test set.
  • Page 34: Switching The Modem On/Off

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Switching the Modem ON/OFF Power on the ZEST The ZEST modems are designed to auto power up using a built in power controller. This process is controlled by default within the modem to control the module functionality and allows for automatic power up when power is supplied.
  • Page 35 ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Considerations when manually powering the ZEST on and off The power supply required to successfully power the ZEST should provide a fast, positive transition from 0V (GND) up to Vcc (max 18V), or at least a large fraction of that voltage range (>6V).
  • Page 36: Embedded Software Support

    » Telit AppZone Telit Easy Script in Python » NOTE - Contact your Siretta representative for information about these 2 programming environments. Telit AppZone Telit AppZone is a high-level optimized standard C development environment that has been developed as an integrated platform to run within the GSM module and provides an advantageous “all-in-one”...
  • Page 37: Telit Easy Script In Python

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Telit Easy Script in Python Telit Easy Script in Python is a high-level Python programming language script interpreter. Python is often characterized as minimalist, although this applies mainly to the language’s core syntax and semantics. The standard library provided within the development environment offers a large number of additional extensions to perform many complex tasks to enable fast application development.
  • Page 38: Siretta Recommends

    GPRS/UMTS Wireless Modem with RS232 Interface Siretta Recommends All ZEST series modems will require extra product which are all available from Siretta. Below are some of the products we recommend for your modem: Product Part No. Description...
  • Page 39: A Member Of The Olancha Group Ltd

    The Siretta power supply for the range of modems provides an industry standard output which is compatible across the range of Siretta modems. With a stable 12V output voltage, the Modem PSU offers a wide input voltage as well as being highly efficient.
  • Page 40: Installation

    See “AT+CSQ Signal Strength” in the AT command manual Tip: Before installing the modem you can use an ordinary mobile telephone to check the signal strength in each possible installation location. Siretta can also provide a GSM signal tester which provides a full breakdown of the GSM signal received.*...
  • Page 41: Power Supply Installation

    Where access is restricted, it may be easier to connect all the cables to the modem prior to placing it in the application on the headers. Securely attach the ZEST series modem to the host application using 2 M3 3mm »...
  • Page 42: Safety And Product Care

    General Precautions » The ZEST series modems are a standalone item designed for indoor use only. For use outside it must be installed in a weatherproof enclosure. Do not exceed the environmental and electrical limits as specified.
  • Page 43: Antenna Precautions

    ZEST series modem is fit for use. If you are concerned about exposure to RF energy, there are a number of things you can do to minimize exposure.
  • Page 44: A Member Of The Olancha Group Ltd

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Medical electronic equipment: Consult the manufacturer of any personal medical devices (such as pacemakers, hearing aids, etc.) to determine if they are adequately shielded from external RF energy. Turn your modem OFF in health care facilities when any regulations posted in the area instruct you to do so.
  • Page 45: Safety Recommendations

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Safety Recommendations PLEASE READ CAREFULLY Be sure the use of this product is allowed in the country intended and the environment required. The use of this product may be dangerous and has to be used...
  • Page 46: Conformity Assessment

    RS232 Interface Conformity Assessment The ZEST series of modems conform to the R&TTE Directive for use as a stand- alone product. If the modem is installed in compliance with the telecoms installation instructions then no further evaluation is required under Article 3.2 of the R&TTE Directive and no further involvement of an R&TTE Directive Notified Body is required for...
  • Page 47: Disclaimer

    The information contained in this document is proprietary to Siretta. Siretta has made every effort to ensure that the accuracy of the information contained within this document is accurate. Siretta does not make any warranty as to the information contained within this document and does not accept any liability for any injury, loss or damage of any kind incurred by the use of this information.
  • Page 48: Definitions

    ZEST Series inspired wireless technology GPRS/UMTS Wireless Modem with RS232 Interface Definitions Term Definition 2nd Generation Mobile Telecommunications Transmit Signal 3rd Generation Mobile Telecommunications UART Universal Asynchronous Receiver/Transmitter Automatic Meter Reading Universal Mobile Telecommunications System UMTS (Same as 3G) Attention...
  • Page 49: A Member Of The Olancha Group Ltd

    Become A Distributor Siretta is currently growing its worldwide distributor and reseller base. Distributors can benefi t from an excellent product range, marketing and technical support, along with the widest range of Antennas, Connectors, Cable Assemblies and Wireless Terminals. inspired wireless technology...

Table of Contents