Damocles2 2404: Secure remote control and monitoring
€603.90
Secure Industrial I/O with PoE and Telco -48V Power Options
The HW group Damocles2 2404 is an industrial I/O device for controlling digital inputs and outputs over LAN. It provides 24 digital inputs (DI) for dry-contact detectors, all equipped with S0 pulse counters with memory to connect water, gas, electricity, or other meters. Additionally, the Damocles2 2404 controls 4 digital relay outputs (DO).
Configuration is performed via an integrated web server. For remote monitoring over the internet, a SensDesk Technology portal in combination with the SensDesk Mobile App for iOS and Android is suitable. Thanks to the three power supply options—9–30 V DC, -48 V, and PoE—the Damocles2 2404 can be operated in a wide range of deployment scenarios. The device uses secure M2M protocols (HTTPS, IPv6, SNMPv3) and supports over 50 SNMP and SCADA applications; the MQTT protocol additionally enables connection to IoT solutions.
24 Digital Inputs, 4 Relay Outputs, and Virtual Outputs in One Unit
The Damocles2 2404 combines a very high number of inputs with professional IT interfaces and remote control of other HWg devices on the network.
24x Digital Input
Dry-contact inputs (NO/NC) with 32-bit S0 pulse counters that retain their count even after a power outage.
4x Relay Output
Relay contacts (NC-COM-NO) with up to 120V AC/60V DC and 1000mA load current per output (max. 4A/24V total).
8x Virtual Output (VDO)
Can be assigned to physical relay outputs of other Damocles2 or Poseidon2 devices on the same LAN (M2M, Box2Box).
PoE & -48V Power Supply
In addition to 9–30 V DC, the Damocles2 2404 can also be powered via Power over Ethernet or with -48 V DC (Telco standard).
Enhanced IP Security
HTTPS, IPv6, and SNMPv3, plus an advanced IP filter, make the Damocles2 2404 a secure choice for professional networks.
MQTT Compatibility
Connection to IoT Hub, MS Azure, AWS IoT, Bluemix Internet of Things, and other cloud services.
Individually Selectable: Single Device or Set with Power Supply
The Damocles2 2404 is available either as a standalone device or as a recommended starter set with a power supply. The desired variant must be selected before adding to the shopping cart.
Damocles2 2404
Industrial I/O device in a plastic housing for DIN rail, with 24 digital inputs, 4 relay outputs, and up to 8 virtual digital outputs. Interfaces: Web, IPv6, SNMPv3, Modbus/TCP, MQTT, netGSM, XML, pulse counter. E-mail and SNMP alerting. Single device without accessories.
Damocles2 2404 Set
Recommended starter package, consisting of the Damocles2 2404 and a matching power supply.
How the Damocles2 2404 Is Built
The plastic housing (approx. 179 x 46 x 116 mm, approx. 400g) is designed for mounting on a DIN rail or wall, has an IP40 rating, and is designed for industrial environments with operating temperatures from -30°C to 65°C (20–80% RH); storage conditions range from -30°C to 60°C (5–95% RH).
Plastic Housing for DIN Rail
Robust housing for DIN rail or wall mounting, with numerous LEDs on the top indicating the status of Power, Setup/Alarm, as well as all 24 inputs and 4 outputs.
Ethernet Port with Web Server and PoE
An RJ45 Ethernet port (10/100 MBit) connects the device to the network and can simultaneously power it via Power over Ethernet; an integrated web server enables configuration directly via the browser.
Serial Interface
A serial (RS-232) port is additionally available.
Terminal Blocks for Digital Inputs (I1–I24)
24 terminals for digital dry-contact inputs (NO/NC) with pulse counting function, for connecting water, gas, or electricity meters as well as detectors such as motion, smoke, or gas alarms.
Terminal Blocks for Relay Outputs (OUT1–OUT4)
Four relay outputs (NC-COM-NO) for controlling external actuators such as sirens, indicator lights, or control relays, with up to 120V AC/60V DC and 1000mA load current per output (max. 4A/24V total).
Flexible Power Supply
The Damocles2 2404 is powered either via a barrel jack (2.1/5.5 mm) or a terminal block with 9–30 V DC (approx. 250 mA), via a terminal block with Telco standard -48V DC (approx. 150 mA), or directly via Power over Ethernet through the Ethernet port (approx. 150 mA).
Multi-Level Notification for Critical Events
A state change on a digital input triggers various alerts depending on configuration.
SNMP Trap
Up to 5 SNMP trap destinations can be configured, including SNMP v1 and (partially) v2 as well as v3.
E-mail Alert
Up to 5 e-mail destinations, sendable via SMTP including SMTP TLS encryption.
SMS + Ring
Up to 5 SMS/call destinations via an external GSM modem with HWg-Trigger software or an HWg-SMS-GW3 gateway on the same LAN.
Box2Box / Remote Relay
Instead of sending a notification, an alert can also activate a relay output on another Damocles2 or Poseidon2 device on the network.
Logger, Counters, and Remote Control
- Integrated logger for more than 250,000 records (DI and DO values)
- 32-bit pulse counters on all digital inputs, power-failure safe
- Virtual digital outputs (VDO) for remote control of other HWg devices
- Communication monitoring (Comm Monitor)
- I/O control also possible via HTTP request
Secure Authentication and Encryption
- HTTPS encryption for web configuration
- SNMP v1, partially v2, and v3 (encrypted and authenticated)
- IPv6 support
- Advanced IP filter for access restriction
From Free Cloud Access to Your Own Data Analysis
The Damocles2 2404 can optionally be connected to SensDesk Technology portals, thereby extending it with central evaluation and management functions.
SensDesk Portals
Cloud portals for data display and alerting, combinable with the SensDesk Mobile App for iOS and Android.
HWg-Trigger
Windows software for forwarding alerts to SMS, pop-up messages, or for automatically shutting down a PC.
HWg-PDMS
Logging of measured values, creation of graphs, and export to MS Excel.
Third-Party Software
Compatible with over 50 SNMP/SCADA applications; programming examples in the HWg-SDK (Borland C++, MS Visual, VB, C#, PHP, Java, and more).
Commissioning in a Few Steps
The Damocles2 2404 is set up entirely via the web browser.
- Mount the device on a DIN rail in the control cabinet or attach it to the wall
- Choose power supply: 9–30 V DC, -48 V DC, or PoE via the Ethernet port (power supply already included with the Set variant)
- Connect the device to the network via an Ethernet cable
- Open the device's IP address in a browser (initial search possible, e.g., with HWg-Config)
- Connect meters or detectors to the 24 digital inputs (I1–I24)
- Wire external actuators to the four relay outputs (OUT1–OUT4)
- Optional: Configure alert destinations (e-mail, SNMP trap, SMS gateway) as well as connection to a SensDesk portal
- Optional: Link virtual digital outputs (VDO) with relays of other Damocles2/Poseidon2 devices
Why the Damocles2 2404 Is the Right Choice
Very High I/O Density
24 digital inputs and 4 relay outputs in a compact device.
Flexible Power Supply
9–30V DC, -48V Telco standard, or PoE.
DIN Rail Mounting
Space-saving installation directly in the control cabinet.
M2M Remote Control
Virtual outputs control relays of other HWg devices on the network.
Enhanced IP Security
HTTPS, IPv6, SNMPv3, and advanced IP filter (2nd generation).
60 Months Warranty
According to the manufacturer, with 60 months warranty from the date of purchase.
Practical Application Examples
- Remote monitoring of systems and equipment
- Smart buildings
- UPS monitoring
- Security and surveillance systems
- Alarm indication
- Energy consumption measurement
- Connection of external inputs to SCADA systems
Practical Example: In a large technical room with many consumers, the Damocles2 2404 simultaneously monitors multiple electricity, gas, and water meters via S0 pulse counting across the 24 digital inputs, as well as various smoke, motion, and door contact detectors. Thanks to PoE power supply, no separate power supply needs to be installed at the mounting location. When a critical condition is detected, the device automatically switches one of the four relay outputs to activate an alarm signal and simultaneously sends an e-mail and an SNMP trap to system monitoring.
Frequently Asked Questions
What is the HW group Damocles2 2404 and what is it used for?
The Damocles2 2404 is a LAN-based I/O device with 24 digital inputs and 4 relay outputs that can be remotely controlled via the integrated web server or a SensDesk portal. It is particularly suitable for applications with very many I/O points, such as remote monitoring of large systems, smart buildings, UPS monitoring, and energy consumption measurement.
What is the difference between the two options?
"Damocles2 2404" is the industrial single device without accessories. "Damocles2 2404 Set" is the recommended starter package and additionally includes a matching power supply. The desired variant is selected above the shopping cart.
How many digital inputs and outputs can be connected?
The Damocles2 2404 provides 24 digital inputs (I1–I24) with pulse counting function and 4 relay outputs (OUT1–OUT4). Additionally, up to 8 virtual digital outputs (VDO) can be used to remotely control relays of other HWg devices on the network.
What power supply options does the device offer?
The Damocles2 2404 can be powered either via 9–30 V DC (barrel jack or terminal block), via a terminal block with Telco standard -48 V DC, or directly via Power over Ethernet (PoE) through the Ethernet port. A matching power supply is included only in the Set package; for the single device it must be obtained separately.
What are virtual digital outputs (VDO)?
Virtual digital outputs are up to 8 outputs that can be assigned to physical relay outputs of other Damocles2 or Poseidon2 devices on the same LAN. This allows an alert on the Damocles2 2404 to directly trigger a relay on a remote device (M2M communication, Box2Box).
How are SMS or call alerts sent?
The Damocles2 2404 does not have its own GSM/LTE modem. SMS and call alerts ("SMS + Ring") are possible either via the HWg-Trigger software with an external GSM modem or via an HWg-SMS-GW3 gateway on the same LAN.
What distinguishes the Damocles2 2404 from the other Damocles2 models?
Compared to the Damocles2 MINI (4 DI, 2 DO) and the Damocles2 1208 (12 DI, 8 open-collector DO), the Damocles2 2404 offers the highest number of digital inputs in the series with 24 DI, 4 classic relay outputs, and as the only model additionally includes a serial RS-232 interface and the option of PoE or -48V power supply.
How many records does the internal logger store?
The integrated logger stores more than 250,000 records of the digital inputs and outputs (DI, DO).
What security features does the device offer?
The Damocles2 2404 supports HTTPS-encrypted configuration, SNMP v1, partially v2, and v3, IPv6, and an advanced IP filter for access restriction.
Questions about the Damocles2 2404?
Our support team in Germany will advise you free of charge on selection, sensors, and configuration.
- Damocles2 2404:
Basic unit only - Damocles2 2404 Set:
Includes power supply: 12 V DC, 1 A
Ethernet Interface:
- RJ45 (100BASE-Tx) – 10/100 Mbps
- Supports PoE (Power over Ethernet)
Digital Inputs (DI):
- 24× digital inputs (Port I1 – I24)
- Supports NO/NC dry contacts
- 12× 32-bit pulse counters
- S0 pulse counters with memory for water, gas, electricity, and other meters
Digital Outputs (DO):
- 4× relay outputs (OUT1, OUT2, OUT3, OUT4)
- Relay contacts (NC-COM-NO)
- Max. load: 4 A / 24 V
- Up to 8 virtual digital outputs (VDO)
Power Supply:
- 9–30 V DC
- -48 V (Telco)
- PoE (Power over Ethernet)
Supported Protocols:
- Modbus/TCP, HTTP, NTP, SMTP
- netGSM, HWg-PUSH, SNMP, XML
- SNMP v1, partial v2, v3
- HTTPS, IPv6, MQTT
Dimensions / Weight:
- Dimensions: 179 × 46 × 116 mm
- Weight: 400 g
Data Logger:
- Internal memory: 250,000 records
- Logged values: DI, DO
Other devices
Available sensors
Extension units
Accessories
DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
Mounting Plate D Bracket for Ares and Poseidon2 Operating environment: -3°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 74 x 6 x 120 (W x H x D) / 58g Warranty: 24 months Wall mounting plate for Ares, Poseidon2 3266/68 and other products.
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
IP WatchDog
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Im Mühlenfeld 4
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de
