Spider: Sensor hub for RS-485 and 1-Wire sensors
€200.20
HW-group Spider: Flexible Sensor Hub for RS-485 and 1-Wire Sensors
The HW-group Spider is an active converter that connects up to four dry contacts or 1-Wire sensors (RJ11) via an RS-485 bus (RJ45) to devices of the Poseidon series, such as Poseidon2 4002 or Poseidon 2250. This compact sensor hub enables easy expansion of monitoring systems in complex cabling scenarios, such as those found in server rooms, industrial facilities, or data centers. By cascading multiple Spider units, up to four units can be connected per Poseidon 2250, allowing the number of sensors to be flexibly scaled. With its robust construction, the option for power supply via the RS-485 bus or an external power supply, and simple configuration via DIP switch, the Spider is ideal for server room monitoring and remote monitoring.
Main Features of the HW-group Spider
The HW-group Spider offers a reliable and flexible solution for integrating sensors into monitoring systems. Here is an overview of the key features:
- Four inputs: Connection of up to four dry contacts (e.g., smoke detectors, door sensors) or 1-Wire sensors (e.g., temperature, humidity sensors) via RJ11.
- RS-485 bus: Reliable data transmission over up to 1200 m with two RJ45 ports for cascading multiple Spider units.
- 1-Wire compatibility: Supports 1-Wire sensors such as temperature (e.g., Temp-1Wire) or humidity sensors (e.g., Hum-1Wire).
- Flexible power supply: Operation via the RS-485 bus of the Poseidon unit or an external 12V power supply (barrel connector, required when using two or more Spider units).
- Easy configuration: DIP switch for setting the address (sensor ID) on the RS-485 bus for quick setup.
- Fast response: Detection of extremely short dry contact pulses (from 30 ms) for precise monitoring.
- Robust design: Compact dimensions (approx. 100 x 70 x 25 mm) and durable construction for industrial use.
- LED indicator: Signals when a sensor value is read or a dry contact is switched.
Application Areas of the HW-group Spider
The HW-group Spider is versatile and ideal for scenarios where additional sensors need to be connected over longer distances. Typical application areas include:
- Server rooms and data centers: Monitoring of environmental parameters such as temperature and humidity or security detectors such as smoke and door sensors for server room monitoring.
- Industrial facilities: Integration of dry contacts for monitoring machines, access points, or system voltages (e.g., UPS function, voltage failure).
- Building management: Connection of sensors for air conditioning, motion detectors, or water detectors in building management systems.
- Remote monitoring: Real-time notifications via Poseidon2 devices by email, SMS, or SNMP trap in case of status changes.
- Expansion of 19-inch racks: Simplified cabling along the walls of racks or cold rooms, e.g., for temperature monitoring in supermarket freezers.
Why the HW-group Spider is the Right Choice
The HW-group Spider is the perfect solution for expanding monitoring systems in complex environments. Compared to other sensor hubs, it offers the unique combination of RS-485 and 1-Wire support, cascading, and easy installation. The use of standard RJ45 and RJ11 connectors facilitates integration into existing systems, while reliable RS-485 technology ensures stable data transmission over long distances. The ability to connect both dry contacts and 1-Wire sensors makes the Spider especially versatile for Poseidon2 integration. Its compact design and fast response to short pulses (30 ms) make it ideal for server rooms, industrial facilities, and building management systems.
Technical Details
- Inputs: 4x RJ11 for dry contacts (NO/NC) or 1-Wire sensors (e.g., Temp-1Wire, Hum-1Wire)
- Interface: RS-485 bus (2x RJ45 for daisy-chain), max. cable length 1200 m
- Power supply: Via RS-485 bus from the Poseidon unit or external 12V power supply (barrel connector, required when using more than one Spider unit)
- Compatibility: Poseidon2 4002, Poseidon 2250, other Poseidon devices with RS-485 interface
- Configuration: DIP switch for RS-485 address (sensor ID)
- Response time: Detection of dry contact pulses from 30 ms
- LED indicator: Signals sensor value reading or dry contact switching
- Operating environment: -40 °C to +85 °C, 5% to 90% relative humidity (non-condensing)
- Dimensions: Approx. 100 x 70 x 25 mm
- Weight: Approx. 150 g
- Accessories: Optional external 12V power supply (e.g., HWg-600528)
Integration with HW-group Products
The HW-group Spider is optimally matched to devices such as Poseidon2 4002, Poseidon 2250, or other Poseidon models with RS-485 interface. It enables the integration of up to four sensors per unit, with up to four Spider units per Poseidon 2250 cascaded, allowing up to 50 sensors to be connected with one S-Hub. Alarms and sensor data are reported in real time via LAN, GSM, SNMP, or Modbus/TCP. The free HWg-PDMS software enables analysis and export of data to Excel for detailed reports. Connection to the SensDesk portal offers additional visualization options via Android or iOS apps.
Installation and Setup
Installation of the HW-group Spider is simple and efficient. The Spider is connected to the Poseidon unit via an RJ45 cable, and up to four dry contacts or 1-Wire sensors are connected to the RJ11 ports. When using multiple Spider units, connection is made via daisy-chain (RJ45). The last Spider on the RS-485 bus must have the jumper set to "LAST", all others to "MIDDLE". The address is set via DIP switch. For more than one Spider unit, an external 12V power supply is recommended. Sensor configuration is done via the web interface of the Poseidon unit or the HWg-PDMS software.
The HW-group Spider is the ideal solution for flexible expansion of monitoring systems in server rooms, industrial facilities, and building management systems. With its support for RS-485 sensors, 1-Wire sensors, dry contacts, and cascading, it offers a versatile platform for remote monitoring and Poseidon2 integration. Optimize your server room monitoring with the HW-group Spider.
- Inputs: 4x RJ11 for dry contacts (NO/NC) or 1-Wire sensors (e.g., Temp-1Wire, Hum-1Wire)
- Interface: RS-485 bus (2x RJ45 for daisy-chain), max. cable length 1200 m
- Power supply: Via RS-485 bus from the Poseidon unit or external 12V power supply (barrel connector, required when using more than one Spider unit)
- Configuration: DIP switch for RS-485 address (sensor ID)
- Response time: Detection of dry contact pulses from 30 ms
Installation:
- Connect the Spider to the Poseidon unit via RJ45 cable
- Connect up to four dry contacts or 1-Wire sensors to the RJ11 ports
- Jumper setting: Last Spider on the RS-485 bus set to "LAST", all others set to "MIDDLE"
- External 12V power supply (e.g., HWg-600528) required when using more than one Spider unit
- Configure the sensors via the web interface of the Poseidon unit or HWg-PDMS software
Safety instructions:
- Installation only by qualified personnel
- Use a suitable 12V power supply that complies with local electrical regulations
- Do not install in environments with explosive gases or vapors
- Complies with EU regulations and industry standards
Further monitoring devices
Available sensors
Accessories
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.
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
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.
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
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
