ThingMagic Mercury xPRESS Platform v1.7 - Manual (Page 62)

Power-Over-Ethernet Module
A D I V I S I O N O F T R I M B L E
62 Using the Optional Modules
Power over Ethernet
The xPRESS platform can be powered from the Ethernet interface. You will need to
connect the Ethernet cable to an hub or router that will supply “POE” power to the
platform, or use a power injector, such as the one shown here:
To power the xPRESS platform from the Ethernet port, make sure that the POE jumper is
in the “POE” position (away from the edge of the board).
Note
When power is supplied by the Ethernet port, both the AC input and Li-Ion
battery are disconnected from the xPRESS power bus. They are both still
connected to each other through the Charging Controller, so the AC input
could be used to charge the Li-Ion battery, but neither will power the
xPRESS platform until the POE jumper is moved to the “Batt” position.
Configuration
PoE module can be configured as any of 4 protocol modes UDP client, TCP client, TCP
server and HTTP client. The choice is made and configuration information give by editing
the file conf_poe.h and recompiling the application.