Rail signal device
Rail signal device
TUNNEL ALARM CONTROL BOX
A safety warning system that operates visual alarm lights and rotating beacons to alert track maintenance personnel inside a tunnel of an approaching train, thereby preventing accidents or casualties.
Interface with electronic interlocking systems via contact signals or communication data
Integrated control with multiple adjacent tunnel warning systems
Centralized control of multiple field devices from the station-side equipment
Bidirectional warning control for train approach detection from both directions
Automated system configuration based on site-specific operational conditions
Functionality testing supported through a dedicated simulator
Configuration
Main Control Unit
- Controls up to 16 field control units installed in a 19-inch, 2000 mm rack
- Equipped with SIL4-certified CPU for high safety assurance
- Redundant rectifier: AC 220V / DC 24V / 10A
- Dual optical network configuration for communication with field units
Field Control Unit
- Installed in pairs for every 3 km of tunnel coverage
- Enclosed in IP55-rated cabinet for environmental protection
- Dual Redundancy in Optical Network
