In most projects, we are Network System Integrators—we organize the development, testing, and management of network interfaces for all train equipment.
Our system integration activities include:
Network design and interface definition. Applying standard or proprietary protocols, documenting the protocols, distributing to subsystem suppliers, and guiding subsystem suppliers in understanding the interface design through templates, fill-in forms, reviews, and design meetings.
Simulator development. Creating simulators, either for Quester Tangent or third-party systems, to aid interface development and testing.
Supplier review. Reviewing test procedures and reports and verifying requirements tracing to ensure completeness and correctness.
Subsystem interface testing. Performing one-on-one tests with all subsystem suppliers prior to prototype vehicle-system integration, using actual or simulated equipment for third-party systems.
System integration testing. Providing integration test support for the fully networked system, as well as in prototype and production vehicles in the deployment environment (on-train), with optional lab simulation for all vehicle subsystems.
Testing support. Offering on-site support during system integration and providing remote, secure VPN-network access for software updates and troubleshooting to reduce test time and travel costs.
Understanding older fleets
For vehicle retrofits and overhauls, integrating to pre-existing equipment and older third-party devices presents many reverse-engineering challenges. When vehicle systems are changed over time, poor documentation can lead to extra costs and delayed schedules. Quester Tangent has experience in quickly gaining an in-depth understanding of the vehicle networks to support new system integration.