GRAS 12BA, Instruction Manual, Page: 31 / 52

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Appendix A | LEMO Microphone Power
Supply Specifications
A.1 USB Interface
A.2 External Power
Interface Type A Peripheral Interface
Versions USB C / USB 2.0
Compatible with USB 2.0, 3.0 and USB C ports
Power USB +5 V, 1.5 A max
USB-C ports with Power Delivery Protocol, USB-A ports with fast
charge (Battery Charger Protocol)
Aux Power Input + 5 V 1.5 A Max
If both USB and Auxiliary power are connected, the power is
sourced from the Auxiliary Power Supply
Aux Power
Connector 5.5 mm x 2.1 mm barrel
+5 V on center pin
External Power
Supply
AC Input
Voltage 100 to 240 VAC 50 to 60 Hz
DC Output
Voltage +5 V @ 3.0 A