TK 56403-2-IM-EN
39
External Device Connection with LVD
General Information
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All SLXi trailer units come fitted as standard from factory with a Low Voltage Disconnect (LVD) Switch to accommodate
for 3rd party device connections. The LVD switch ensures that all SLXi units provide a dedicated device connection
point for external devices, while also preventing battery discharge/depletion of the EON battery during unit idle periods.
Example of “external devices” which are required to be powered through the LVD switch connection points include:
•
Third party telematics
•
TouchPrint printer
•
TouchPrint dataloggers
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ntt:: All external device connections must be connected through the LVD switch as per instructions detailed
below. Failure to connect external devices through the LVD switch may result controller and/or battery
related failures being rejected by warranty. The LVD switch acts as a protective medium between the SLXi
unit electrical system and external device(s).
The LVD Switch
The LVD switch acts as a protective medium between the SLXi unit electrical system and external device(s).
The function of the LVD switch is as follows:
•
Disconnects power to external devices when battery voltage drops below 12.1V (for longer than 5-7 minutes).
•
Automatically resets when system voltage rises above 13V (for longer than 10 seconds).
•
Provides connection point in control box for up to 3 external devices.
•
Recommended total maximum current draw from all connected devices combined (At all times, not just when the
unit is power down): 2 Amps.
