Rail signal device
Rail signal device
Automatic Block Signaling (ABS)
AutoBlockSystem
The Automatic Block System is used in single and double track block sections. It automatically controls signal indications and the transmits/receiver of frequencies related to track circuits and forword train operation information, based on trains entering the block section.
Type-approved electronic block control system
Station-side equipment certified to SIL4 safety level
Dual-redundant architecture with real-time cross-comparison between two systems
Dual optical network configuration for high reliability
Interfaces with electronic interlocking systems via relay I/O, enabling compatibility with existing legacy equipment
Dual-redundant system architecture (2-out-of-2 configuration) for robust safety operations
Safety relays integrated to ensure secure output cutoff in fault conditions
Redundant rectifiers with load balancing capability
Implements identical safety functions as the electronic interlocking system
Operating Temperature: -40℃ to +70℃
Humidity: ≤ 90% (non-condensing)
Vibration Tolerance: ≤ 1G
Maximum Control Distance: Up to 25 km
Maximum Number of Connected Block Sections: 32
Per-Site Control Capacity:
2 × Four-Aspect Signals
2 × ATS Units
2 × LEUs (Line-side Electronic Units)
1 × Track Circuit
Dual Power Input Switching supported for redundancy
Configuration
