ARB LINX1 LINX User Manual

ARB Corporation Ltd LINX Users Manual

Users Manual

ARB Accessory Controller, ECU specification Overview The ARB Accessory Controller is a system for controlling and monitoring various vehicle accessories such as switching on and off lights, and monitoring pressure transducers. The system is composed of two main parts: a touch screen graphical user interface (GUI), and an electronic control unit (ECU). The GUI provides the user with a dashboard / switchboard to display the on/off state of the accessories and allow the user to switch them. The ECU is the brains of the system, it communicates with the GUI, electronically switches the accessories, stores the states of all accessories. The interface between the ECU and the GUI is USB and Bluetooth, the command structure is basic serial messaging structure. Scope This covers the design of the ARB Accessories Controller ECU and gives specific technical requirements and implementation details. Electrical General Specifications This covers the electrical specifications that apply to the unit as a whole. Item Specification Input battery voltage range 9VDC to 16VDC for normal operation Load dump Load dump tolerant Cranking voltage Crank voltage of 6VDC for 1 second with no reset to the MCU. Tablet and output load dropout is acceptable. Reversed battery The system is tolerant of a reversed battery for a period of 1 minute. Load activation during reversed battery is allowable. Short Circuit All inputs and outputs shall not be damaged by either short circuit to battery or ground with the exception being ground pins being shorted to battery. Quiescent current There is no requirement for a specific quiescent current. Loose battery terminals Momentary interruption in power supply (loose battery terminal). The module shall not reset for battery dropouts less than 50ms no more frequent than every 2 seconds. Fusing The unit is not fused. It relies on upstream fusing. Battery connections 6.3mm spade terminals Total current <20A

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