I-ETMS is made up of four unique components: the Office Segment, the Wayside Segment, the Communication Segment and the Locomotive Segment.
I-ETMS Benefits:
The I-ETMS system is designed to prevent:
- Train-to-train collisions
- Overspeed derailments
- Incursions into established work-zone limit
- Movement of a train through a switch left in the wrong position.
I-ETMS Key Onboard Components:
Wabtec offers various components for use with the I-ETMS system. The Locomotive Segment refers to a set of onboard hardware, software, and devices that interface with locomotive control equipment, including an onboard computer & display, GPS, RF communication, and EOT communication.
The Locomotive Segment accepts movement authorities, temporary speed restrictions, other mandatory directives, train consist data, and other relevant information from the Office Segment. Switch position and signal indications may be directly received by the Locomotive Segment via communication with the Wayside Segment.
Train Management Computer (TMC):
The onboard Train Management Computer (TMC) consists of Train Control Processors, Business Application Processors, Input/Output, Ethernet Switch. The TMS meets AAR locomotive environmental, vibration, and other specifications.
- Enforces Movement Authorities, Speed Limits, Hand Throw Switch Alignment
- Triple Train Control CPUs for Safety and High Availability
- Meets Subpart I Requirements for PTC Systems
- Hosts Energy Management Application CPU
- Hosts ITC Message Router (ITCM) CPU
Computer Display Unit (CDU):
The Computer Display Unit (CDU) provides the train crew with a wealth of operating information:
- Displays Train Location, Track Features, Restrictions, Work Zones
- Enhances Situational Awareness
- Crew Entry of Credentials
- Dual Displays Available to Support Additional Crew with Duties in Cab