Poseidon2 4002: Monitoring for server rooms

Comprehensive Solution for Server Room Monitoring

The Poseidon2 4002 from HW group is an advanced solution for monitoring server rooms and industrial environments. This versatile device is designed to protect critical infrastructure by monitoring up to 40 sensors for parameters such as temperature, humidity, voltage, current, or light[4][6].

With 12 digital inputs for detectors like smoke detectors or door contacts and four relay outputs, it offers comprehensive sensor monitoring and control[4][6]. The Poseidon2 4002 is available in three variants – basic device, TSet, and PRO – each tailored to different requirements. Thanks to modern network monitoring and flexible integration options, this device is ideal for data centers, industrial facilities, and smart buildings[2][4].

High-Capacity Sensor Monitoring

The Poseidon2 4002 supports up to 40 sensors, 16 via 1-Wire/1-Wire UNI and 24 via RS-485[4][6]. These sensors precisely capture environmental data such as temperature, humidity, light intensity, voltage, or current (including 4-20 mA). Monitoring is in real time, and data is stored in an internal logger with a capacity of over 250,000 records[3][4].

With HWg-PDMS software, this data can be analyzed and exported to MS Excel, making documentation for regulatory purposes (e.g., in pharmaceutical or food industries) easier. Sensors connect via six RJ11 ports or RS-485 interfaces, allowing flexible configuration[3][4].

Network Monitoring and IoT Integration

With a 10/100 MBit Ethernet interface, the Poseidon2 4002 enables seamless network monitoring. It supports secure M2M protocols such as SNMPv3, Modbus/TCP, MQTT, HTTPs, IPv6, and XML, allowing easy integration into SCADA systems or IoT solutions[2][4][6]. Through the free SensDesk.com online portal, users can monitor their sensors worldwide and receive alarms directly on their mobile device via the SensDesk Mobile App (iOS and Android)[6]. Support for over 50 SNMP and SCADA applications makes the device a flexible platform for modern monitoring requirements[2][6].

Relay Outputs and Digital Inputs

The Poseidon2 4002 features four digital NO/NC relay outputs that can switch devices like air conditioners, fans, or door locks with up to 1 A[4][5]. These outputs can be controlled manually via the web interface or automatically based on sensor values, e.g., as an IP thermostat or IP hygrostat.

Additionally, the device offers 12 digital dry contact inputs (DI) for detectors such as smoke detectors, water leak sensors, or door contacts[4][6]. Eight virtual digital outputs enable communication with other Poseidon2 or Damocles2 devices on the same network to realize complex control tasks[4][6].

Alerting and Notifications

The Poseidon2 4002 offers versatile alerting options to enable rapid response to critical events. When thresholds are exceeded or status changes occur at the digital inputs, the device sends notifications via email, SNMP trap, or HWg-Push to up to five recipients[4][6].

SMS notifications are possible via an external HWg-SMS-GW3 gateway (sold separately)[4]. An alarm reminder function and periodic email reports ensure that no important events are missed. Users can define conditions such as “Send an SMS when the temperature exceeds 30°C,” increasing alert flexibility[4].

Power Supply and Installation

The device is designed for demanding environments and supports power supply options from 9–30 V DC[5]. An additional screw terminal allows the supply of external sensors such as motion detectors or smoke detectors[3][5]. The robust metal housing (100 x 213 x 35 mm) is suitable for DIN rail mounting, wall mounting, or as a 1U device in 19-inch racks[5][7]. With an operating temperature range of -30°C to +85°C and CE compliance, the Poseidon2 4002 is ideal for server rooms and industrial applications[5][7].

Variants of the Poseidon2 4002

The Poseidon2 4002 is available in three variants to meet different needs:

• Poseidon2 4002 (Basic Device):
  • Monitoring device with 16x 1-Wire/1-Wire UNI and 24x RS-485 sensor connections
  • 12x digital dry contact inputs (DI)
  • 4x digital NO/NC relay outputs
  • 8x virtual digital outputs (VDO)
  • No accessories, ideal for custom configurations
• Poseidon2 4002 TSet:
  • Includes all features of the basic device
  • Additional accessories:
    • Plug-in power supply (EU, UK, USA)
    • Temp-1Wire Rack 19" (temperature sensor for 19-inch racks)
    • Temp-1Wire 3m IP67 (temperature sensor)
    • Door contact sensor
    • 19-inch rack mounting kit
    • HWg-PDMS 8 license (software)
    • Screwdriver
    • Software CD
• Poseidon2 4002 POE:
  • Includes all features of the basic device
  • Extended features for professional applications:
    • Additional support for specialized sensors (e.g., Pt100/Pt1000)
    • Enhanced compatibility with third-party software
    • Preconfigured settings for complex applications
  • No additional accessories included

Application Areas

The Poseidon2 4002 is highly versatile and particularly suitable for:

• Server room monitoring: Monitoring temperature, humidity, door contacts, and power failures in data centers.
• Industrial monitoring: Monitoring production facilities, warehouses, or cold chains.
• Smart buildings: Integration into building automation systems for controlling heating, air conditioning, or lighting.
• Pharma and food: Logging storage conditions for HACCP-compliant reports.
• Telco applications: Monitoring telecommunications infrastructure.

Integration and Software Support

The Poseidon2 4002 is compatible with numerous software solutions. The HWg-SDK provides programming examples in languages such as C++, C#, PHP, and Java to simplify integration into custom applications[2]. The HWg-Trigger software enables advanced alarm forwarding, such as SMS notifications or device shutdowns. With HWg-PDMS software, S0 pulses can be converted to cost per time period and exported to Excel. Support for MQTT for IoT solutions and over 50 SNMP and SCADA applications makes the Poseidon2 4002 a flexible platform[2][6].

Security Features

Security is a top priority. Access to the web interface can be restricted by passwords or IP address ranges. Support for HTTPs and SNMPv3 ensures secure data transmission, which is especially important in sensitive areas such as data centers[2][6].

The Poseidon2 4002, available as basic device, TSet, and PRO, is a powerful solution for server room monitoring and industrial applications.

With its ability for sensor monitoring, flexible network monitoring, robust relay outputs, and comprehensive alerting options, it provides companies with the tools to reliably protect their infrastructure.

DIN rail mounting and versatile integration options make installation and use simple and efficient. Whether in data centers, production facilities, or smart buildings – the Poseidon2 4002 is the ideal choice for demanding monitoring tasks.