Moxa Technologies DE-211 - Manual (Page 28)

5-2
Using Power Over Serial
Take the following steps to set up NPort Express’s Power over Serial option.
IMPORTANT NOTICE
You may not use the power adapter and Power Over Serial option at the same time.
Using both power options at the same time could cause irreparable damage to your
NPort Express unit.
(1) To use the 12 – 30 VDC Power over Serial option, enable jumpers JP4 and JP5,
as illustrated in the following diagram. Note that when using the 12 – 30 VDC
option, power is supplied via pins 12 and 13: