The basic system includes a remote console from which an operator can safely perform virtually all machine functions including engine startup, acceleration, deceleration and shutdown; shifting, steering, directional control and braking; blade and ripper control; and auxiliary functions such as lights and horn. Critical information normally displayed in the cab (in gauge clusters and on display panels) is replicated on the remote console. The console incorporates a shoulder harness for convenience and portability. In addition to the remote console, the basic system has a primary transceiver and antenna, a Catdesigned remote control ECM, a relay block from which auxiliary functions are controlled, an in-cab emergency shutdown switch, an in-cab remote control mode indicator and a cab-mounted beacon that indicates when the machine is under remote control. A ground-level service center is also included in the basic system. It mounts on the ripper or counterweight and features two switches: one for selecting either remote or manual control, the other for emergency shutdown.

The system will bring a remotely controlled large track-type tractor to a stop when any emergency shutdown switch is activated. Switches are located in the cab, on the remote console, in the ground-level service center and on an optional redundant emergency shutdown transceiver. It will also stop the tractor if the remote control console is tipped, the off-board transceiver loses power, radio communications are lost, communications to the on-board transceiver or any ECM are lost, or when selected Level 3 alarms from any ECM are activated.

Other standard safety features include an AutoRetarder function for engine overspeed protection and an AutoBrake function that engages when the machine is in neutral. For new machines, an Attachment Ready Option makes system installation and setup quick and easy. Retrofit kits are also available. An optional avoidance system uses global positioning to create electronic fences that identify three-dimensional worksite boundaries. When a remotely controlled machine reaches a boundary, two warnings are issued before an avoidance stop is activated.

Late in 2009, Cat will offer two optional system enhancements: An operator station comprising a seat and seat-mounted joysticks and switches will allow an operator to run a machine remotely from a cablike environment; and an optional remote video/audio system will stream four highresolution, low-latency, low-distortion video feeds and one low-latency audio feed to the remote operator in real time.

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