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Locomotive Remote Control System

The Accuspeed™ is a comprehensive locomotive remote control system that enables operators to safely control the locomotive via wireless remote control. The system continually applies the right amount of throttle or brake to maintain the selected speed regardless of track grade or train mass while the operator focuses on train movements, track conditions and personal safety. Accuspeed is designed for FRA-regulated railroad operations in the Americas.


  • Consistently maintains the speed selected by the operator
  • Used by FRA-regulated railroad operations
  • Compliant to 49 CFR § 229.15
  • Works with RemoteIQ™ Rail
  • Works with the OCU-III

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Datasheets Locomotive Products


Feature-rich controller that includes an embedded GNSS location, a patented method for pushing OCU positional data to the RCL system, bluetooth link to the internal archive record and a Wi-Fi port to accommodate future expansion

Dynamic Speed Control

Cattron's patented speed control system streamlines the complexities of throttle and brake manipulation to maintain the selected speed regardless of track grade or train mass

Internal Archive Record

Logs hundreds of system events, remote control data points and manual mode data to be used for system monitoring and troubleshooting

Two-Way RF Communication

Tri-color LEDs and an OLED display on the OCU-III are utilized to relay information from the locomotive control unit to the operator

Extended Range

RF protocols support repeaters for extending the RF range beyond one mile line-of-sight


Safely stops the movement of the locomotive in the event of a conflict between intended output and monitored input


Configurable to comply with 49 CFR § 229.15

ISO Certification

Manufactured in an ISO 9001:2015 certified operation


Standard one-year product warranty with extended warranty options available

Locomotive Brake System Compatibility

Pneumatic Systems (26-L, etc.), CCB-26, FastBrake

RF Protocol

220 MHz ATS, 450 MHz STS, 220 MHz CAI

Hump Operation

Excitation control for slow speed operation and options for interfacing to hump process controllers


Accuspeed is compatible with PSP or EPD options for pullback protection, crossing protection and other automation features

Train Brake Cycle Braking Protection

Provides configurable system protection from improper train handling

Electric Handbrake Interface

Enables the locomotive remote control system to control various brands of electric handbrake systems

Remote Access over 4G

The remote control system enables users to collect locomotive data via an internet connection

Operator Dismissal

Enables a two-person crew to temporarily dismiss the secondary operator

Americas FRA Regulated

Switching and Railyard Car Movement, Maintenance of Way

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