Our Integrated Power Supply System provides a complete power solution from one system for all signalling circuits. The IPS Systems meet the requirements of. As an engineering-driven technology company with over 135 years of experience, Rail Power Systems is a general contractor for railway infrastructure and one of the leading system providers of contact lines, traction power supply and electrotechnical equipment. With opportunities, however, come certain challenges and maintaining consistent and reliable. Railway signaling is the backbone of safe and efficient train operations. It ensures that trains move smoothly, avoid collisions, and adhere to schedules.