Black Box LMC5235A User Manual
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7. A readily accessible disconnect device shall be incorporated in the building installation
wiring.
8. A suitable listed circuit breaker shall be provided in the building installation as the unit’s
disconnect device. The branch circuit rating (i.e. minimum 15A listed circuit breaker,
etc.).
etc.).
DC Power Wiring, Replacing Power Supply and Fans
DC Power Supply Wiring Instructions
The following image shows the wiring configuration for a 48 VDC power supply in a negative
ground system application. For positive ground system applications remove the chassis
ground shorting jumper and connect it between the positive terminal and the chassis ground
terminal. Alternatively, the chassis grounding jumper can be eliminated and the chassis
ground connected at the power source. The ground terminal and the negative terminal are
not connected inside the iMediaChassis/3.
ground system application. For positive ground system applications remove the chassis
ground shorting jumper and connect it between the positive terminal and the chassis ground
terminal. Alternatively, the chassis grounding jumper can be eliminated and the chassis
ground connected at the power source. The ground terminal and the negative terminal are
not connected inside the iMediaChassis/3.
DC Power Supply
Negative ground system configuration (default position)
NOTE
Incorrect wiring will result in chassis malfunction.
The 3-Slot Desktop Chassis is compliant with Isolated Grounding Plane practices. The
POSITIVE and NEGATIVE terminals are isolated from chassis ground and must have a ground
reference at the power-sourcing equipment.
POSITIVE and NEGATIVE terminals are isolated from chassis ground and must have a ground
reference at the power-sourcing equipment.
Power Supply Modules
Power supply in all models of the 3-Slot Desktop Chassis are fixed, and not end-user
replaceable.
replaceable.