Power Supply Sources; Select Usb Power Supply - mangOH Red User Manual

3.5 Power Supply Sources

The mangOH Red is powered via either of the board's micro-USB connectors or an optional backup battery. The
micro-USB connectors can connect to a computer's USB port or, if greater power is required, to an AC adapter.
Table 3-1: mangOH Red Power Supplies
Supply
CN305—Console USB connector
Primary
CN801—CF3 USB connector
Backup CN802—Battery

3.5.1 Select USB Power Supply

Power is supplied to the mangOH red via USB connection (host computer or AC adapter) or an external battery
backup.
The mangOH Red has two USB connectors:
• CF3 USB—Used for SSH connections, AT commands, and firmware downloads.
• CONSOLE_USB—Serial connection used to access the module's console for diagnostic purposes.
Note: If you want to power the mangOH Red with an AC adapter instead of a computer's USB connector, choose the appro-
priate micro-USB connector:
• Console—This leaves the CF3 USB connector available for SSH connections, AT commands, and firmware downloads.
• CF3 USB—This leaves the Console USB connector available for a serial connection to access the module's console for
diagnostic purposes.
To select the USB power supply:
1. Place the mangOH Red face-up and locate the power select (PWR SEL) jumper pins (CN804).
Figure 3-4: Power Supply Connectors/Selector
Rev 3 Sep.18
Provides a serial connection to the mangOH Red.
Provides access to CF3 interfaces (ECM port, AT port, etc.)
An optional Li-ion or Li-polymer (3.7 V nominal) rechargeable battery can be
installed to power the board if the primary power supply fails.
15
Details
CF3 micro-USB connector (CN801)
Battery connector
Power supply select (CN804)
Console micro-USB connector (CN305)
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