Locomotive Event Acquisition Module
The Central Railway MFG LEAM, a locomotive event aggregation device, is part of a flexible event recording strategy capable of interfacing discrete electric & pneumatic systems.
Insight into LEAM technology
The advancement of FRA recording requirements due to the evolution of safety standards in the freight industry presents unique locomotive maintenance issues. The LEAM was specifically designed to allow CRM customers to update their current fleets of Quantum® recorders with minimal impact to existing wiring while providing the latest FRA compliance recording points and advanced network connectivity features.
The LEAM is available in common Quantum® recorder form factors, offering form-fit-function compliance with regard to existing electrical connections, air connections, and mounting features. Incremental FRA discrete recording connections are supported on additional ports that are physically positioned for ease of retrofit installation. The LEAM also integrates Quantum® Alerter functionality.
Equipped with two industry-standard M12 Ethernet network connections, the LEAM integrates advanced switch features such as VLAN support for maximum on-board network integration flexibility.
Flexibility in Event Recording
The LEAM acts as a concentrator, combining discrete locomotive events into industry-standard AAR Class D EMP messages which conform to open AAR standard data dictionary elements. Flexibility of data collection by an external DOT-crashworthy memory module or any network-based utility for non-hardened (e.g. database) applications is ensured by utilizing this nonproprietary format. In addition to supporting external memory, the LEAM also integrates up to 2GB of internal non-hardened storage to accommodate a wide range of custom user applications such as locomotive configuration management.
Custom user communications configurations are available on the LEAM. For legacy serial port applications, most existing locomotive asynchronous and synchronous RS-232 and RS-422 protocols are supported. The LEAM also offers fault and status monitoring message generation, where network messages can be forwarded to user-defined locations given user-specified locomotive telemetry sequences or logic trees.
The LEAM can be configured as a drop-in replacement while utilizing the existing wiring onboard the locomotive for the following Event Recorder types: