Modem SMS-GW3 LTE series - Central LTE gateway

HW-group SMS-GW3 LTE Series: Central LTE Gateway for SMS and Call Alerting

The HW-group SMS-GW3 LTE series (consisting of SMS-GW3 LTE E plain, SMS-GW3 LTE E, SMS-GW3 LTE G plain, and SMS-GW3 LTE G) is a versatile SMS and LTE gateway that enables HW-group devices, SensDesk portals, and third-party software to send SMS notifications and call alerts through a single device with one SIM card. Designed for remote monitoring and server room monitoring, the series operates in box-to-box mode (peer-to-peer) over LAN without requiring additional software. Devices like Poseidon2, HWg-WLD, HWg-PWR, or IP WatchDog2 can send alarms to various phone numbers configured directly in the device or in software such as HWg-Trigger or SensDesk. With support for LTE and GSM, an external antenna for weak signal coverage, and simple web-based configuration, the SMS-GW3 LTE series is ideal for industrial monitoring systems, data centers, and building management. The variants differ in antenna type (external or built-in) and region (Europe or global).

Main Features of the HW-group SMS-GW3 LTE Series

The SMS-GW3 LTE series offers an efficient solution for centralized alerting via SMS and calls. Here is an overview of the key features:

• Central SMS and Call Alerting: Enables multiple HW-group devices (e.g., Poseidon2, HWg-WLD) to send SMS and call alerts using a single SIM card.
• Box-to-Box Communication: Operates over LAN in peer-to-peer mode without additional software, ideal for remote monitoring.
• LTE and GSM Support:
  • SMS-GW3 LTE E plain / E: Supports FDD LTE bands (B1/B3/B5/B7/B8/B20), WCDMA bands (B1/B5/B8), GSM bands (900/1800 MHz) for Europe.
  • SMS-GW3 LTE G plain / G: Supports additional LTE bands (B2/B4/B12) and WCDMA bands (B2/B4) for global use, including North America.
• Antenna Variants:
  • Plain Versions (E plain, G plain): Without external antenna, for built-in installation or areas with strong signal.
  • Standard Versions (E, G): With external SMA quad-band antenna (3 m cable) for weak signal coverage (e.g., data centers).
• SMS + Ring Function: Sends SMS and can simultaneously make a short call (ring) to the recipient number, configurable in the sending device.
• Web-Based Configuration: Easy setup via web interface; recipient phone numbers are defined in the sending device or software.
• Internal Queue: Storage for up to 100 outgoing SMS messages to prevent loss.
• Compatibility: Supports HW-group devices (Poseidon2, HWg-PWR, HWg-WLD, IP WatchDog2), software (HWg-Trigger, HWg-DCD, Nagios), and the SensDesk portal.
• Developer Friendly: HWg-SDK with examples for programmers (Borland C++, MS Visual C, VB, C#, PHP, JAVA).
• Compact Design: Dimensions 92 x 76 x 31 mm, wall or DIN rail mounting possible.

Applications of the HW-group SMS-GW3 LTE Series

The SMS-GW3 LTE series is versatile and ideal for scenarios requiring fast and reliable alerts. Typical applications include:

• Server Rooms and Data Centers: Alerting for temperature, humidity, or dry contact events for server room monitoring (e.g., with Poseidon2 4002).
• Industrial Facilities: Notifications for machine failures, power loss, or environmental changes via SMS or call.
• Building Management: Integration with sensors for access control, water detectors, or HVAC monitoring.
• Remote Monitoring: Real-time SMS or call notifications independent of internet connection for remote locations.
• Third-Party Integration: Supports Nagios (via notify-poseidon-sms.pl plugin) and other systems via SNMP, XML, or netGSM (HTTP, SOAP).

Why the HW-group SMS-GW3 LTE Series is the Right Choice

The SMS-GW3 LTE series simplifies alerting in complex monitoring systems by using a single SIM card for all HW-group devices in the network. Compared to other SMS gateways, it offers LTE support, box-to-box communication, and easy setup without additional software. The SMS + Ring function increases alert reliability, while the external antenna (in E/G versions) enables use in weak signal areas. The plain versions are ideal for strong signal installations, while the E/G versions with external antenna offer more flexibility. Integration with Poseidon2 devices, HWg-Trigger, Nagios, and the SensDesk portal makes the series versatile for server room and industrial monitoring. Its compact design and support for M2M protocols (SNMP, XML, netGSM) ensure seamless integration into existing systems.

Technical Details

• Connection: Ethernet 100 Mbit/s, LTE/GSM/GPRS
• Interface:
  • SMS-GW3 LTE E plain / E: FDD LTE bands (B1/B3/B5/B7/B8/B20), WCDMA bands (B1/B5/B8), GSM bands (900/1800 MHz)
  • SMS-GW3 LTE G plain / G: Additional support for FDD LTE bands (B2/B4/B12), WCDMA bands (B2/B4)
• Antenna:
  • E/G Versions: External, SMA quad-band, 3 m cable
  • Plain Versions: No external antenna, for built-in installation
• Protocols: SNMP, XML, netGSM (HTTP, SOAP)
• Power Supply: 9–15 V / 0.4 A (external power adapter, e.g., HWg-600528)
• Message Queue: Internal storage for 100 outgoing SMS
• Dimensions: 92 x 76 x 31 mm
• Operating Environment: -10 °C to +65 °C, 5% to 90% relative humidity (non-condensing)
• Mounting: Wall mount or DIN rail
• Compatible Devices: Poseidon2, HWg-WLD, HWg-PWR 3/12/25, IP WatchDog2
• Compatible Software: HWg-Trigger, HWg-DCD, Nagios (via plugin), SensDesk portal
• Accessories: External power adapter optional, external antenna included with E/G versions

Integration with HW-group Products

The SMS-GW3 LTE series is optimally matched with HW-group devices such as Poseidon2 4002, HWg-WLD, HWg-PWR, and IP WatchDog2. Dry contacts, temperature, humidity, or water sensors can be connected via RS-485 bus or 1-Wire sensors, with alarms sent via SMS or call. Recipient phone numbers are configured directly in the sending device or in software like HWg-Trigger or the SensDesk portal. For third-party systems like Nagios, a plugin (notify-poseidon-sms.pl) is available that forwards SMS notifications via HTTP to the gateway. The free HWg-PDMS software enables analysis and export of sensor data to Excel, while the SensDesk portal (SaaS or on-premise) offers visualizations via Android or iOS apps.

Installation and Setup

Installation of the SMS-GW3 LTE series is straightforward. The device connects to the network via an Ethernet cable (100 Mbit/s), the SIM card (not included) is inserted, and for the E/G versions, the external antenna is connected. Power is supplied via a 9–15 V power adapter. Configuration is done through a web interface by entering the gateway’s IP address in a browser. Recipient phone numbers are defined in the sending devices (e.g., Poseidon2) or software (e.g., HWg-Trigger). To use with the SensDesk portal, the gateway must be reachable via a public IP address or VPN. The HWg-Config software facilitates initial setup, and the HWg-SDK provides programming examples for developers (C++, C#, PHP, JAVA). A factory reset can be performed within the first 60 seconds after power-on using HWg-Config.

The HW-group SMS-GW3 LTE series (SMS-GW3 LTE E plain, SMS-GW3 LTE E, SMS-GW3 LTE G plain, SMS-GW3 LTE G) is the ideal solution for centralized SMS and call alerting in server rooms, industrial facilities, and building management systems. With LTE support, box-to-box communication, and compatibility with Poseidon2 integration and the SensDesk portal, it offers a cost-effective way to send alarms from multiple devices using a single SIM card. The flexible choice between plain and antenna variants as well as support for European and global regions makes the series versatile. Optimize your remote and server room monitoring with the SMS-GW3 LTE series.

Available Versions:

SMS-GW3 LTE E plain

Central GSM-SMS-LTE gateway for HW-group sensors. IP sensors connected via LAN. GSM LTE modem included, external SMA antenna required. Version E is used in most EU countries.

SMS-GW3 LTE E

Central GSM-SMS-LTE gateway for HW-group sensors. IP sensors connected via LAN. GSM LTE modem included, external antenna and power adapter included. Version E is used in most EU countries.

SMS-GW3 LTE G plain

LAN/LTE gateway (basic device) for SMS and voice call notifications – for HW-group devices. Requires an external SMA antenna and a power adapter. Version G is the recommended global version.

SMS-GW3 LTE G

LAN/LTE gateway for SMS and voice calls – for HW-group devices. External antenna and power adapter (EU/UK/US) included. Version G is recommended for global use.