Overview

Lineside Electronic Unit (LEU)

LEU (Line side Electronic Unit) Composition

Configuration of centralized LEU type

Configuration of distributed LEU type

Sub-Rack Configuration

LEU (Line-side Electronic Unit) Specification

category Detailed Breakdown content
ETCS Specification
Compatibility		 SRS SRS 2.3.0.D
ERTMS ETCS compatible 100% Compatible
Ability to cope with future specification changes Developing firmware and software with its own technology⇒ Flexible response capability
Construction and
maintenance 		Telegram Design Telegram Designable(Have professional manpower)
Construction On-site construction is possible(Have professional manpower)
A trial run/Education Training as well as test driving is effective for the technical staff and can be transferred according to the field situation
Safety RAMS Self execution
Certified SIL4(Safety Integrity Level 4) TUV SUD Rail
Cost Required Hardware Costs Optimize design and production for affordable cost
software costs Telegram design software and testing tools (software) with their own development to reduce relative costs without additional costs such as royalties
Software Ease of use Convenient and intuitive UI makes it easy to use and reduces training time
Maintainability It was developed with its own manpower and can respond quickly to users' needs
Safety RAMS Application
up-to-date Apply the latest technology
Responsiveness to changes in the environment Respond immediately to changes in the external environment
Data Management Implement data management optimization in Telegram design
Scalability Expand and change in the future, skip complex external production connections with Upgrade, making it easier to scale

LEU (Line-side Electronic Unit) Hardware

Specification Content
INP(Read Contact) Board Detects up to 16 point digital input
DRV(balise driver) Board Increase reliability with redundant channels.
Monitoring Board Monitor system safety behavior at all times. 5 points digital output
Power Board Increased reliability with redundant power
Power supply 110V / 220V conversion to 24V
Input Voltage Rated Input Voltage AC 220 / 110V, 60Hz, single phase
Input voltage tolerance AC 220V ± 20%(AC176 ~ 264V)
Rated power Rated output voltage DC 24 ~ 28V / 27A
Output voltage fluctuation range -10% ~ +15% (DC 21.6 ~ 27.6)
Output stability for input voltage of the set output voltage 0.5%
Pulse rate and noise voltage 240 mVp –p or less at rated load
Operating temperature -40℃~+70℃

LEU (Line-side Electronic Unit) Interface

LEU Special Advantage

Intuitive health monitoring Visually check the operating and input/output status of each board with LEDs on the front of the board
System flexibility/scalability Development of proprietary hardware/firmware and application software ☞ Flexible response and scalability
Monitoring system malfunctions Apply Watch-Dog to prevent system malfunction
Safety RAMS Self-Performed and SIL4 Certified (TUV SUD Rail)