Hyrax-1000 Series
MODULAR COMPUTING PLATFORM FOR RAILWAY APPLICATIONS
INSTALLATION MANUAL
Revision: 0.4 | Date: 27.06.2025
DISCLAIMER
Copyright
© 2025 Westermo Eltec GmbH. The information, data, and figures in this document including respective references have been verified and found to be legitimate. In particular in the event of error they may, therefore, be changed at any time without prior notice. The complete risk inherent in the utilization of this document or in the results of its utilization shall be with the user; to this end, Westermo Eltec GmbH shall not accept any liability. Regardless of the applicability of respective copyrights, no portion of this document shall be copied, forwarded or stored in a data reception system or entered into such systems without the express prior written consent of Westermo Eltec GmbH, regardless of how such acts are performed and what system is used (electronic, mechanic, photocopying, recording, etc.). All product and company names are registered trademarks of the respective companies.
Our General Business, Delivery, Offer, and Payment Terms and Conditions shall otherwise apply.
SAFETY INFORMATION
Electrical Safety
WARNING
The device can be operated with voltages over 75 V DC.
Incorrect handling risks causing a fatal electrical shock. Before connecting the power supply, connect the device to protective earth.
General advice
- Only qualified personnel is allowed to install, operate and maintain the devices.
- Please take safety precautions against electrostatic discharge (ESD).
- Access to the devices may only be granted to qualified personnel.
- To prevent the risk of electric shock, turn off the external power supply and remove the power supply cable from the electrical outlet before handling or disassembling the system.
- When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected.
- Make sure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company.
- If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer.
Operation Safety
WARNING
The device can become very hot during operation (> 80 ° C).
Make sure it is protected from accidental contact.
The device must be installed so that it is not accessible to children.
To prevent burns, switch off the device and allow to cool down for half an hour before disassembling or working on it.
- Before installing the device and connecting cables to it, carefully read the related manuals.
- Before using the device, make sure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.
- Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may become wet.
- Place the product on a stable surface.
- If you encounter technical problems with the product, contact a qualified service technician or your retailer.
Radio Frequency Exposure Statement
At least 20 cm separation distance between the antenna and the user’s body must be maintained at all times.
RECYCLING
Please recycle packaging environmentally friendly:
Packaging materials are recyclable. Please do not dispose packaging into domestic waste but recycle it.
Please recycle old or redundant devices environmentally friendly:
Old devices contain valuable recyclable materials that should be reutilized. Therefore please dispose old devices at collection points which are suitable.
EU DECLARATION OF CONFORMITY
Westermo Eltec GmbH herewith declares that the device is compliant to the basic requirements of the directive 2014/53/EU.
The full text of the EU declaration of conformity is available in the Download Center on www.eltec.com and at the product support section on www.westermo.com.
CONTACT
Westermo Eltec GmbH
Galileo-Galilei-Straße 11
55129 Mainz
Germany
Fon +49 6131 918 100
Fax +49 6131 918 195
Email info.eltec@westermo.com
www www.eltec.com
www.westermo.com
ABOUT THIS DOCUMENT
This installation manual is intended only for system developers and integrators; it is not intended for end users.
It describes the hardware functions of the product, connection of peripheral devices and integration into a system. Additional information on special applications and the configuration of the product is available for download in a separate configuration manual at the Download Center on www.eltec.com and at the product support section on www.westermo.com.
OVERVIEW
2.1 PRODUCTS
This installation manual comprises all information to set-up the following products.
HARDWARE
The Hyrax-1000 Series is a rugged and modular computing platform purpose-built for onboard vehicle applications. Its scalable architecture supports a range of preassembled extension modules, allowing for versatile configurations tailored to specific market requirements. This modular design not only ensures flexibility but also enables rapid system customization and accelerated time to market.
3.1 DEVICE CONNECTORS
3.1.1 POWER SUPPLY MODULE CONNECTORS
The Hyrax system can be powered by a DC power source connected to the internal power supply via an M12 connector. The nominal input voltage can vary between 24 V and 110 VDC. The electrical power can be supplied to the device using the M12 A-coded male power connector, labeled PWR IN.
Table 1 shows the pin-assignment of the power supply connector.
| PIN | SIGNAL NAME | DESCRIPTION | |
 |
1 | +VIN | Supply voltage, positive terminal |
| 2 | +VIN | Supply voltage, positive terminal | |
| 3 | -VIN | Supply voltage, negative terminal | |
| 4 | -VIN | Supply voltage, negative terminal |
Table 1 Pin Assignment of Power Supply Connector (PWR)
3.1.2 CPU MODULE ETHERNET INTERFACES
The 3x LAN-ports of the Hyrax are utilizing M12 X-coded female connectors with the pinassignment as shown in Table 2. Mating connectors are available from several manufacturers.
| PIN | SIGNAL NAME | DESCRIPTION | |
 |
1 | D1+ | First data line plus |
| 2 | D1− | First data line minus | |
| 3 | D2+ | Second data line plus | |
| 4 | D2− | Second data line minus | |
| 5 | D4+ | Fourth data line plus | |
| 6 | D4− | Fourth data line minus | |
| 7 | D3− | Third data line minus | |
| 8 | D3+ | Third data line plus |
Table 2 Pin Assignment of M12 Ethernet Connectors (LAN 1/2)
3.1.3 CPU MODULE SERVICE PORT AND SERIAL INTERFACES
The Hyrax is equipped with 4x RS232 / 422 / 485 interfaces over D-Sub 9 male connectors and the first serial port is reserved as a service port, which cannot be used for RS485. To use the remaining 3x RS485 ports the TX / RX pair pins must be shorted externally in the connector cable (Pin 2 + 3 / Pin 7 + 8).
Table 3 shows the pin assignment of the serial interfaces.
| PIN | SIGNAL NAME RS232 | SIGNAL NAME RS422 | SIGNAL NAME RS485 | DESCRIPTION | |
 |
1 | – | – | – | – |
| 2 | Rx | RxD− | – | Receive data− | |
| 3 | TX | TxD− | D− | Transmit data− / Data(A) − | |
| 4 | – | – | – | – | |
| 5 | GND | GND | GND | Common ground | |
| 6 | – | – | – | ||
| 7 | RTS | TxD+ | D+ | Transmit data+ / Data(B)+ | |
| 8 | CTS | RxD+ | – | Receive data+ | |
| 9 | +5V | +5V | +5V | Supply voltage |
Table 3 Pin Assignment of Serial Interface Connectors (RS232 / 422 / 485)
Note RS422:
RS422 is a point-to-point serial communication standard designed for high-speed and robust data transfer. Unlike RS232, RS422 uses differential signaling, which provides better noise immunity and allows for faster transmission rates. However, it does not support hardware handshaking, as the typical handshake pins are repurposed for differential data lines (TxD+ / TxD− and RxD+ / RxD−).
To establish a proper RS422 connection:
- TxD± must be connected to the corresponding RxD± of the remote device.
- A common ground reference between the two devices is required.
- For higher baud rates (>115 kBaud) or cable lengths over 10 meters, a termination resistor of 100–150 Ω between RxD+ and RxD− at the receiver is recommended to reduce signal reflections.
- For short-distance connections, a standard null modem cable may be sufficient.
Note RS485:
RS485 supports multipoint communication on a shared bus, requiring proper termination to ensure signal integrity and maintain a defined idle state when no device is transmitting.
RS485 installation notes:
- Termination resistors must be placed at both ends of the bus.
- The termination voltage can be externally supplied. When the Hyrax system is the final node in the bus chain, it can provide this voltage via Pin 9 of the DB9 connector.
- To enable this feature, a hardware bridge (jumper) must be closed on the system’s serial controller (default: open).
- Since the RS485 standard does not define specific termination voltages or resistor values, it is common practice to use +5 V with resistor values similar to the diagram below (e.g., 120 Ω termination + pull-up/pull-down resistors). The exact values are not critical.
3.1.4 CPU MODULE PERIPHERAL DEVICE INTERFACES
The Hyrax system provides high-speed peripheral connectivity through 2x USB 3.0 Type-A ports and 2x DisplayPort 1.2 interfaces. These ports are located on the front I/O panel and are designed for direct connection to external devices such as input peripherals, storage media, external monitors, and HMI components.
The USB 3.0 ports support data rates of up to 5 Gbps and are backward compatible with USB 2.0/1.1 devices. They are ideal for connecting external keyboards, mice, flash drives, and other USB-compatible peripherals.
Table 4 shows the pin assignment of the USB connectors.
| PIN | SIGNAL NAME | DESCRIPTION | |
 |
1 | VBUS | +5 VDC power supply |
| 2 | D– | USB 2.0 differential pair (–) | |
| 3 | D+ | USB 2.0 differential pair (+) | |
| 4 | GND | Common ground | |
| 5 | SSRX– | SuperSpeed receiver differential (–) | |
| 6 | SSRX+ | SuperSpeed receiver differential (+) | |
| 7 | GND | Common ground | |
| 8 | SSTX– | SuperSpeed transmitter differential (–) | |
| 9 | SSTX+ | SuperSpeed transmitter differential (+) |
The Hyrax system includes two DisplayPort 1.2 outputs, supporting resolutions up to 3840 × 2160 (4K UHD) @ 60Hz. These interfaces are suitable for high-resolution external monitors and industrial display panels.
Caution: Use certified DisplayPort cables to ensure signal integrity, especially for 4K displays or long-distance connections.
Features:
- Multi-Stream Transport (MST) for daisy-chaining multiple displays
- Audio signal transmission support
- HDCP 1.3 and DPCP content protection compatible
Table 5 shows the pin assignment of the DisplayPort 1.2 connectors.
| PIN | SIGNAL NAME | DESCRIPTION | |
 |
1 | ML_Lane 0 (p) | Main lane 0 positive |
| 2 | GND | Common ground | |
| 3 | ML_Lane 0 (n) | Main lane 0 negative | |
| 4 | ML_Lane 1 (p) | Main lane 1 positive | |
| 5 | GND | Common ground | |
| 6 | ML_Lane 1 (n) | Main lane 1 negative | |
| 7 | ML_Lane 2 (p) | Main lane 2 positive | |
| 8 | GND | Common ground | |
| 9 | ML_Lane 2 (n) | Main lane 2 negative | |
| 10 | ML_Lane 3 (p) | Main lane 3 positive | |
| 11 | GND | Common ground | |
| 12 | ML_Lane 3 (n) | Main lane 3 negative | |
| 13 | CONFIG1 | Connected to ground | |
| 14 | CONFIG2 | DP_PWR return | |
| 15 | AUX CH (p) | Auxiliary channel positive | |
| 16 | GND | Common ground | |
| 17 | AUX CH (n) | Auxiliary channel negative | |
| 18 | HPD | Hot Plug Detect | |
| 19 | DP_PWR | Power for adapter | |
| 20 | GND | Common ground |
Table 5 Pin Assignment of DisplayPort 1.2 Connectors
3.1.5 MVB BUS MODULE INTERFACE (ESD+ / EMD)
The Hyrax system supports the Multifunction Vehicle Bus (MVB) communication compliant with ESD+ / EMD electrical interface specifications, commonly used in railway environments for deterministic, real-time train control communication. The MVB interface is optimized for Trainwide control networks (TCN) / Car-to-car communication and Real-time data exchange between onboard control units. Each MVB module provides two D-Sub 9 connectors (1x
male, 1x female), enabling convenient loop-through wiring.
Standards supported:
- EMD (Electrical Medium Distance) / distances up to 200 meters
- ESD+ (Electrical Short Distance) / distances up to 20 meters
Table 6 shows the pin assignment of both female/male MVB EMD connectors.
| PIN | SIGNAL NAME MVB EMD | DESCRIPTION | Line | |
 |
1 | ADP | Data_P | from Line A |
| 2 | ADN | Data_N | from Line A | |
| 3 | – | – | – | |
| 4 | BDP | Data_P | from Line B | |
| 5 | BDN | Data_N | from Line B | |
| 6 | ATP | Termination_P | from Line A | |
| 7 | ATN | Termination_N | from Line A | |
| 8 | BTP | Termination_P | from Line B | |
| 9 | BTN | Termination_N | from Line B |
Table 6 Pin Assignment of MVB EMD Connectors
Table 7 shows the pin assignment of both female/male MVB ESD+ connectors.
| PIN | SIGNAL NAME MVB ESD+ | DESCRIPTION | Line | |
 |
1 | ADP | Data_P | from Line A |
| 2 | ADN | Data_N | from Line A | |
| 3 | – | – | – | |
| 4 | BDP | Data_P | from Line B | |
| 5 | BDN | Data_N | from Line B | |
| 6 | AGND | GND | from Line A | |
| 7 | BGND | GND | from Line B | |
| 8 | A5V | 5V | from Line A | |
| 9 | B5V | 5V | from Line B |
Table 7 Pin Assignment of MVB ESD+ Connectors
Note:
The male and female D-Sub 9 connectors support pass-through wiring to simplify bus installation and minimize cable effort. No active bus termination is required on the interface side.
3.1.6 CAN MODULE INTERFACE
The system provides support for the Controller Area Network (CAN) interface according to ISO 11898-2 (High-Speed CAN), widely used in industrial and railway automation for robust, realtime communication between embedded systems. The CAN interface is suitable for a range of industrial and rail-based applications, including communication with vehicle control units (VCU), monitoring and diagnostics of subsystems, and integration of sensors and actuators in vehicles.
Each CAN module provides two D-Sub 9 connectors (1x male for input, 1x female for output), providing compatibility with standard cabling and connector layouts used in rolling stock applications, enabling convenient loop-through wiring.
Note: Ensure that the CAN network is terminated properly at both ends to avoid signal reflections and communication errors.
Installation Notes:
- Use twisted pair CAN cabling with proper impedance (typically 120 Ω).
- Terminate the CAN bus at both ends with 120 Ω resistors.
- Connect the shield to ground at one location only to avoid ground loops.
Table 8 shows the pin assignment of both female/male CAN connectors.
| PIN | SIGNAL NAME MVB ESD+ | DESCRIPTION | |
 |
1 | – | – |
| 2 | CAN_L | CAN data line (low) | |
| 3 | GND | Signal ground | |
| 4 | – | – | |
| 5 | – | – | |
| 6 | – | – | |
| 7 | CAN_H | CAN data line (high) | |
| 8 | – | – | |
| 9 | – | – |
Table 8 Pin Assignment of CAN Connectors
3.1.7 ANTENNA CONNECTORS
The QLS antenna connectors are located at the front panel of each module. Besides the GNSS connector on the CPU module, each radio interface module connector is labeled from A1 to A4. Depending on the specific radio interface, not all antenna connectors are currently in use; some are reserved for future interfaces such as 5G and Wi-Fi 7. Their functionalities depend on the model type described in Table 9 below.
When connecting an antenna to the QLS connector, make sure that you hear a ‘click’ sound confirming proper mounting.
| MODELS ANTENNAS | ||||
| Hyrax with WLAN | WLAN A1 | WLAN A2 | WLAN A3 | not used A4 |
| Hyrax with LTE | LTE main A1 | LTE aux. A2 | not used A3 | not used A4 |
| Hyrax with 5G | 5G A1 | 5G A2 | 5G A3 | 5G A4 |
| Hyrax with Wi-Fi 7 Dual concurrent | WLAN 1 A1 | WLAN 1 A2 | WLAN 2 A3 | WLAN 2 A4 |
Table 9 Antenna assignment per wireless interface
To remove an antenna, it has to be gently pulled from the basis of the connector with one hand, while the other hand is holding the antenna. Alternatively, a screwdriver can be used as a lever arm at the basis of the antenna to facilitate the removal, as illustrated below.
STEP 1
Place the screwdriver between the connector and the device
STEP 2
Rotate and/or push the screwdriver while pulling the antenna
3.2 LED INDICATORS
The LEDs on the front panel of the Hyrax system provide quick indication of the device status.
3.2.1 POWER STATUS LED
| LED COLOR | STATE | DESCRIPTION |
| Green | On | Device is receiving correct input power |
| Green | Off | Device is not powered |
Table 10 Power Status LED
3.2.2 SYSTEM STATUS LED
| LED COLOR | STATE | DESCRIPTION |
| Red | On | System is not booted yet |
| Green | On | System booted in standard mode |
| Orange | On | System booted in emergency mode |
| Off | Off | System is off |
Table 11 System Status LED
3.2.3 LAN STATUS LED (10/100 M | 1000 M)
| LED COLOR | STATE | DESCRIPTION |
| Green Yellow | On On | 1000 Mbit/s link established |
| Green Yellow | On Off | 10/100 Mbit/s link established |
| Green Yellow | Blinking Off | Indicates 10/100 Mbit/s data transfer |
| Green Yellow | Blinking On | Indicates 1000 Mbit/s data transfer |
| Green Yellow | Off Off | No 100 Mbit/s (resp. 1000 Mbit/s) link |
Table 12 LAN Status LED
3.2.4 WIRELESS MODULE STATUS LED
| LED COLOR | STATE | DESCRIPTION |
| Green | On | Indicates module is in use |
| Green | Toggle | Indicates data transfer on module |
| Green | Off | Indicates module is inactive |
Table 13 Wireless Module Status LED
3.2.5 MVB MODULE STATUS LED
| LED COLOR | STATE | DESCRIPTION |
| Green | Off | Indicates module is inactive |
| Green | Toggle | Indicates data transfer on module |
| Green | On | Normal operation mode |
Table 14 MVB Module Status LED
3.2.6 MVB MODULE ERROR LED
| LED COLOR | STATE | DESCRIPTION |
| Red | On | MVB Bus Error |
| Red | Off | No error pending |
Table 15 MVB Module Error LED
3.2.7 CAN MODULE STATUS LED
| LED COLOR | STATE | DESCRIPTION |
| Green | Off | Indicates module is inactive |
| Green | Toggle | Indicates data transfer on module |
| Green | On | Normal operation mode. |
Table 16 CAN Module Status LED
3.2.8 CAN MODULE ERROR LED
| LED COLOR | STATE | DESCRIPTION |
| Red | On | CAN Bus Error |
| Red | Off | No error pending |
Table 17 CAN Module Error LED
3.3 RESET SWITCH
The Hyrax system is equipped with a hidden reset switch behind the front panel close to LAN 1. The button is accessible with a straightened paper clip pushed through the little hole on the front panel. The effect of pressing the reset switch depends on the duration of its activation, as indicated in Table 18 below. The timing behavior is only valid, if the device has completly booted (after approx. 1 min). The following table describes the functions of the reset switch.
| HOLD TIME | STATUS LED BEHAVIOR | ACTION |
| < 2 seconds | Blinking | System reboot |
| 2-5 seconds | Blinking stops | No action |
| 5-10 seconds | Blicking fast | Factory reset |
| > 10 seconds | Blinking stops | No action |
Table 18 Reset Switch Behavior
3.4 SIM CARDS
The Hyrax provides 4 SIM slots per modem. Only one slot per modem can be active at any time. To install SIM cards, the small front plate of the Hyrax has to be removed using a suitable torx 8 screwdriver. After installing the SIM cards, the small front plate can be closed and the screws tightened to a maximum torque of 0.55 Nm.
Note: Switching between SIM slots takes about 30 seconds, slot 1 being preselected at power up. If you plan to use only one SIM card for a given modem, it is advisable to use slot 1 to avoid slot switching delay during the boot phase.
The drawing in Figure 12 shows the SIM slot assignment with a closed / opened SIM panel.
Important: Do not change the SIM cards when the device is powered since there is a danger of touching the main voltage when the device is open.
MOUNTING
This product uses convection cooling. Ensure it’s installed within the specified ambient temperature range by avoiding airflow obstructions. Install it where natural airflow isn’t blocked, with sufficient spacing. At high ambient temperatures, mount the product on a metallic base plate to improve heat dissipation by increasing the surface area.
When mounting the Hyrax-1000, please take into account the following aspects:
- Do not install the device close to any sources of heat, such as radiators or heat registers.
- Keep the device away from any liquids and avoid exposure to dripping or splashing. The protection class of the housing is IP40.
- The housing provides various mounting options with DIN-Rail build-in and shown below. The DIN-Rail, wall mount and 19 inch rack mounting options are available as accessories.
The drawing in Figure 13 shows the outer dimensions of the housing, including the DIN-Rail mounting option.
4.1 CONNECTING AN EARTHING CABLE
The M6 earthing stud on the side of the device for protective earth connection is essential for the device security. Carry out the following steps to connect an earthing cable:
- Use an earthing cable with a cross-section of at least 2.5 mm² and a wire end sleeve with eyelet suitable for a 6 mm threaded bolt.
- Mount the earth cable as shown in Figure 14.
- Fasten the cable by tightening the nut to the required torque (recommended according to EN60947-1 are 3 Nm).
4.2 ELECTRICAL CONNECTION
- Make sure the device is properly grounded.
- Establish a connection to the network by plugging a M12 patch cable to one of the front panel M12 connectors.
- Connect the desired number of antennas to the device. Each radio/modem can use up to four antennas for maximal performance.
- In case of using a local power supply, the appropriate wiring (see Table 1) must be established to connect the power line to the device.
- Make sure that the voltage of the power supply conforms to the voltage on the type plate.
- Ensure that the power supply is grounded correctly and that the power cable is intact and undamaged. Do not switch on the system if there are damages on the power cable or plug.
- Use power cables which are approved for the power supply in your country.
- The device itself has no on/off switch, it starts as soon as it is supplied with power.
Documents / Resources
 |
westermo Hyrax-1000 Series Modular Computing Platform [pdf] Installation Guide Hyrax-1000, Hyrax-1000 Series Modular Computing Platform, Hyrax-1000 Series, Modular Computing Platform, Computing Platform |