The ZETA Modem is designed to deliver reliable cellular connectivity for IoT applications, ensuring seamless communication across networks. To help you get the best performance from your device, this page provides essential support resources, including user manuals, firmware updates, application notes and FAQ’s. Whether you’re setting up your modem, updating firmware, or resolving connectivity issues, you’ll find the information you need to keep your ZETA Modem running smoothly.
Stay current with the latest ZETA modem firmware and software tools. Regular updates ensure improved functionality, enhanced performance, and new features.
Learn how to use your ZETA modem. Browse our document section for user manuals and datasheets.
Are you having an issue with your ZETA? Browse our Application notes section for solutions to common problems, Our FAQs also provide quick answers to frequently asked questions.
If you need further assistance, our support team is ready to help. Contact us for expert guidance on setup, advanced features, or diagnosing network-related issues.
The Siretta range of industrial low power modem solutions are a family of cellular enabled modems which have been designed to an industrial specification to allow an easy connection for remote devices over the internet. The family of products supports a standard set of features including low power operation with a wide range and robust power supply, RS232 and USB serial connectivity and extended temperature spec as standard.
Each member of the modem family supports an embedded TCP/IP stack for simple network connectivity and an enhanced set of AT commands to support many advanced features such as FTP, email, SMS, CSD, direct data socket connections and over the air software updates. As a result the units are designed to be used as a direct replacement for existing equipment and can be easily setup with the correct commands to operate out-of-the-box.
Modem Features
The SirettaSPARK Tool is an automated device management application developed by Siretta to simplify the process of keeping your devices up to date with the latest software and firmware. Software updates provide new features, performance improvements and bug fixes to applications developed by Siretta and enhance your products overall capabilities. Firmware updates provide improvements to the devices core operation, add performance improvements and enhance device network interaction.
Both of these elements are important to keep your device running in optimal condition and the SirettaSPARK tool helps to make this process simple and easy.
The SirettaSPARK Tool automates software and firmware updates for all of your Siretta devices and offers the following benefits:
In addition the SirettaSPARK Tool incorporates advanced features which offer the following:
The SirettaSPARK integrated tools provide automated device updates and allow the Siretta Engineering team to understand and debug any underlying issues with your application integration remotely.
NOTE: If SirettaSPARK does not find your connected equipment you may be running an outdated version of software or you may have a problem with your devices setup.
Please contact Siretta support for further assistance.
Siretta USB Device Drivers
To connect your industrial modem, network signal analyser or intelligent cellular application to your OS of choice, you will need to install the relevant USB drivers for your system. Please see the supported drivers below which should be used to ensure correct operation of your USB communication on your OS.
PLEASE NOTE:
You must connect your device to the system and it must be turned on for the software drivers to install correctly!!
Siretta RS232 to Serial Device Drivers
Download the RS232 to Serial Cable Device Drivers to support the following products:
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Introduction This application note is produced for customers who may wish to develop their own application to run on Siretta Modems using AppZone C. What is AppZone C? AppZone…
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Applicable Products Part number Description ZETA-NLP-LTE1 (EU) Ultra Low Power European LTE Cat 1 Modem ZETA-NLP-LTEM (GL) Ultra Low Power Global LTE Cat M Modem Objective Power consumption is one…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) Objective In some applications,…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Circuit switched networks physically connect two endpoints using a communication channel through the network. This utilises a fixed bandwidth for the session whilst the two endpoints remain connected. Packet switched…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Applicable Products Part number Description SL500-LTE1 (EU) SL500-LTE1 (EU) Low Power LTE Cat 1 Serial Gateway SL500-LTEM (GL) SL500-LTEM (GL) Low Power LTE Cat M / NB IoT Serial Gateway…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Industrial, modems, zeta, gps modem, gps, lte, 4g, 5g, gprs, socket, connection, low, power, rs232, gnss, gpio, cat1, cat4, cat Applicable Products All ZETA Modems Part number Description ZETA-GEP-LTE4 (EU)…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) Objective Testing performance of…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS (GL) Entry Level GPRS Modem with GNSS ZETA-N2-GPRS (GL) Entry Level…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-NEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO ZETA-NLP-LTE1…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level GPRS…
Applicable Products Part number Description ZETA-GEP-LTE4 (EU) Low Power LTE Cat 4 European Modem with GPIO and GNSS ZETA-G-GPRS Entry Level GPRS Modem with GNSS (GL) ZETA-N2-GPRS Entry Level…
Introduction This application note shows how to send an AT command directly to a Siretta Modem using a Mobile phone or SMS relay service. The text messages (SMS) containing AT…
It is possible to control the Siretta modems using a mobile phone.
Please refer to the How to set up a Siretta modem using SMS AT commands Application Note.
Siretta do not provide a SIM cards with their modem family.
It is generally more cost effective to purchase SIM cards from your chosen network provider.
Siretta offer comprehensive support if customers are having difficulty with connectivity with all networks.
Our Global solution products contain GL in the product name.
Currently these are:
ZETA-N2-GPRS (GL) is an Industrial GPRS modem
ZETA-G-GPRS (GL): Is an industrial GPRS modem with GPS
ZETA-NEP-LTEM (GL) is an Low Power modem that supports the Global LTE Cat M1 and NB1 networks.
ZETA-NLP-LTEM (GL) is an Ultra Low Power NBIoT modem that supports the Global LTE Cat M1 and NB1 networks.
The Siretta Modems basic specifications are as follows:
Dimensions: 93mm x 67mm x 28mm
Weight: 90 grams
Operating temperature range: -40 to +85°C
Relative humidity: <95% (non-condensing)
All Siretta modems use the full 9 wire interface pins on the RS232 port.
| Pin | Name | Description | Direction |
|---|---|---|---|
| 1 | DCD | Output to indicate modem is ready | Out |
| 2 | RXD | Output transmit line | Out |
| 3 | TXD | Input receive line | In |
| 4 | DTR | Input to control DTE ready condition | In |
| 5 | GND | RS232 Ground | In |
| 6 | DSR | Output to indicate modem is ready | Out |
| 7 | RTS | Input to control hardware flow control | In |
| 8 | CTS | Output to control hardware flow control | Out |
| 9 | RI | Output indicating incoming call | Out |
All Siretta modem’s use the standard SIM size 2FF form factor which is 25mmx15mm.
All Siretta modem’s have a full 9-wire RS232 interface through a DB9 connector and USB full speed through a USB mini B connector.
In addition some models support an external GPIO header which includes the following:
Please refer to the products specification for full details.
For a breakdown of the modems and their interfaces please refer to Siretta Industrial Modems
The operating voltage for all Siretta modems is 5 – 42V.
We recommended 12V DC as standard.
Idle Power consumption for some of our modems are as follows:
ZETA-N2-GPRS (GL): Idle: 25mA @ 12v
ZETA-G-GPRS (GL): Idle: 45mA @ 12v (with GNSS)
ZETA-N-LTE (EU): Idle: 45mA @ 12v
ZETA-NLP-LTE1 (EU): Low Power Idle: 1.2mA @ 12v
ZETA-NLP-LTEM (GL): Low Power Idle: 715uA @ 12v
ZETA-NSP-LTE1 (EU): 10.1mA @ 12v
ZETA-NEP-LTEM (GL): Low Power Idle: 4.3mA @ 12v
All Siretta modems support SMS messages.
The SMS service must be enabled on the SIM.
Please refer to How to Send and Receive SMS Messages Using a Siretta Industrial modem Application Note
Siretta modems do not come with any accessories.
If you require a modem with all the accessories, we offer an Starter Kit for all Siretta modems
Our Modem Starter kits contain the following accessories:
Click here to submit a support request