Instructions - Intel Enpirion EM21 Series User Manual

User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide

4. Instructions

1) Connect the power supply
Set the Power Supply to 12V/10A.

Connect the power supply to the board (make sure that the power supply is OFF)

with two patch cables, not longer than 12 inches (30 cm). Using longer wires is
possible, provided that additional bulk is added to the board (the C45 through-hole
capacitor footprint is available for this purpose) and the input voltage is monitored
at the board level. Please use INPUT GROUND and INPUT VOLTAGE eyelet-
terminated cables to connect the power.
Please observe the correct polarity.

2) Connect the load
Connect the load to the OUTPUT GROUND and OUTPUT voltage with patch cables,

no longer than 12 inches (30 cm).
Please observe the correct polarity.

3) Check jumper settings
The board will arrive with one jumper on the J6 (BUS – enabling control through

PMBUS), one jumper on J14 (INT – this enables the on-board 5V power supply) and
one jumper on J15 (AUX_PVIN – this biases the 5V on board DC-DC converter). If an
auxiliary 5V power supply is needed (connected between J16 (+) and J17 (-)), J14
should be placed across the "EXT" position while J15 can be removed.
Although "TRACK" and "SYNC" use 100 mils headers, they are NOT to be shorted by

jumpers.
4) Connect the PMBUS GUI interface dongle
The USB Dongle can be inserted only in the correct position, with pin one towards

GND. All pins must be properly inserted.
Prerequisite: the latest GUI software must be installed on a Windows PC.

5
15066
CAUTION: Incorrect polarity of the power supply may cause permanent
board damage!
CAUTION: Power supply voltage above 20V may cause permanent board
damage!
September 3, 2018 Rev A