Standards-compliant recording
Continuous, event-based recording of TRDP message and process data, CAN-based vehicle signals, GPS data and internal system events.
Juridical Recording Unit
Railway data.
Recorded reliably.
A modular, ETCS-compatible journey data recorder for new vehicles and retrofit projects — engineered and manufactured in Switzerland.
3 U · 21 HP · 19-inch rackEN 62625Compliant recording
2× EthernetTRDP and data access
128 GBIndustrial SDHC
24–110 VDCNominal supply
01 Product overview
One recorder.
Multiple data sources.
asis®JRU records safety-relevant vehicle data continuously and combines ETCS, TRDP, vehicle signals, positioning and system events in one robust platform.
Event-based recording and compression use storage efficiently while redundant, non-volatile storage protects the latest data. The system can be configured through an SD card, integrated web interface or API and fits both modern vehicle networks and retrofit architectures.
02 Core capabilities
High data integrity
Parallel storage in internal non-volatile memory and on an industrial SDHC card, with a fault-tolerant compressed AJD data format.
Open system integration
Two 100 Mbit/s Ethernet ports, a CAN interface and a galvanically isolated digital output support flexible vehicle architectures.
Efficient data access
Retrieve data locally via SDHC or remotely through the web interface, SFTP, WebDAV and an HTTPS API.
03 From vehicle to evaluation
Record locally.
Access remotely.
Recorded data is available on the removable industrial SDHC card and via secure Ethernet access. Automated downloads reduce on-vehicle service work and support central fleet data management.
- Manual download through the integrated web interface
- Automated transfer through SFTP or WebDAV
- HTTPS API for customer-specific integration
- Evaluation and export with asis®CHARTS X
Sources
→ETCS
TRDP
CAN
GPS
Recordasis®JRU
→Access
SDHC
LAN
Server
API
04 System integration
Designed as part of the asis® family.
Extend the recorder with vehicle interfaces, precise time and location, crash-protected storage and powerful analysis software.
asis®VS-100
Acquisition and processing of discrete, speed and CAN-based vehicle signals.
View product →
asis®GPS2.0
Precise positioning and time synchronisation for consistent recorded data.
View product →
asis®JRU CPM
Crash-protected memory for accident data according to EN 62625-1.
View product →
asis®CHARTS X
Visualise, filter, evaluate and export recorded journey and ETCS data.
View product →
asis®Picto
Customer-specific, clearly readable symbol displays for railway vehicles.
View product →
asis®Tacho
Customer-specific digital speed display for precise driver information.
View product →05 Technical data
Built for railway environments.
Robust aluminium construction, railway-qualified interfaces and a wide supply range support reliable operation across demanding vehicle applications.
- Input voltage
- 16.8–143 VDC24–110 VDC nominal
- Power consumption
- 3.5 W typical5 W maximum
- Operating temperature
- -25 to +70 °CEN 50155 temperature class T3
- Relative humidity
- 10–90% RHNon-condensing
- Operating altitude
- Up to 3,500 mAbove sea level
- Storage
- SDHC up to 128 GB512 MB internal NOR flash
- Interfaces
- 2× Ethernet, 1× CAN100 Mbit/s Ethernet
- Digital output
- 24–110 VDC / 0.8 AGalvanically isolated MOSFET
- Dimensions
- 106.3 × 128.4 × 214 mmWithout handles
- Rack size
- 3 U / 21 HP19-inch rack installation
- Protection
- IP20Colourless anodised aluminium
- Weight
- 1.3 kgasis®JRU
- Maintenance interval
- 10 yearsPeriodic recording checks recommended
06 Standards and approvals
Developed for compliance.
Verified for rail.
07 Downloads
Technical documentation.
Product information for planning, integration and operation.
EN · PDFasis®JRU Datasheet↓DE · PDFasis®JRU Datenblatt↓
MANUALSManuals are available on request.Contact us →
Let's discuss your vehicle architecture