Ramp-AC RF DVK Hardware
Version 1.0
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[email protected]
www.lairdtech.com/ramp
10
CONN-GUIDE-RAMP-AC-DVK-HW
RS-485 Pin Name Description
+5V
This is regulated 5V output from the serial board for general purpose use. A maximum
of 100 mA should be drawn through this node.
Power Requirements
The serial board employs a National LM2940 linear regulator to regulate the incoming voltage to 5VDC. Due
to heat dissipation limitations and current requirements, a maximum of 10VDC should be present at
connector J4. A minimum of 5.5V should also be present at the connector.
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