These are new without the box.
These may have some minor scuffs and scratches from sitting on the shelf and being moved around.
IntroductionBendix® EC-60™ controllers are members of a family of electronicAntilock Braking System (ABS) devices designed to help improvethe braking characteristics of air braked vehicles - including heavyand medium duty buses, trucks, and tractors. ABS controllers arealso known as Electronic Control Units (ECUs).Bendix ABS uses wheel speed sensors, ABS modulator valves, andan ECU to control either four or six wheels of a vehicle. By monitoringindividual wheel turning motion during braking, and adjusting orpulsing the brake pressure at each wheel, the EC-60™ controller isable to optimize slip between the tire and the road surface. Whenexcessive wheel slip, or wheel lock-up, is detected, the EC-60™controller will activate the Pressure Modulator Valves to simulatea driver pumping the brakes. However, the EC-60™ controller isable to pump the brakes on individual wheels (or pairs of wheels),independently, and with greater speed and accuracy than a driver.In addition to the ABS function, premium models of the EC-60™controller provide an Automatic Traction Control (ATC) feature.Bendix ATC can improve vehicle traction during acceleration, andlateral stability while driving through curves. ATC utilizes EngineTorque Limiting (ETL) where the ECU communicates with theengine’s controller and/or Differential Braking (DB) where individualwheel brake applications are used to improve vehicle traction.Premium EC-60™ controllers have a drag torque control featurewhich reduces driven-axle wheel slip (due to driveline inertia) bycommunicating with the engine’s controller and increasing theengine torque.
Premium ModelsPremium EC-60™ controllers support applications up to sixsensor/six modulator (6S/6M) installations with ATC anddrag torque control. All 12 volt models support PLC. 24 voltmodels do not support PLC.
EC-60™ CONTROLLERS WITH PLCSince March 1, 2001, all towing vehicles must have an in-cab trailer ABS Indicator Lamp. Trailers transmit the status of the trailer ABS over the power line (the blue wire of the J560 connector) to the tractor using a Power Line Carrier (PLC) signal. See Figures 4 and 5. Typically the signal is broadcast by the trailer ABS ECU. The application of PLC technology for the heavy vehicle industry is known as “PLC4Trucks.” The Standard PLC EC-60™ controller and the Premium EC-60™ controller (12 volt versions) support PLC communications in accordance with SAE J2497.
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