NAMC-EXT – Technical Reference Manual
Version 1.6
© N.A.T. GmbH
19
4.2.2
Jumper JP2
The setting of jumper JP2 defines the source for /AMC_ENABLE signal. The default
position (right aligned) means the signal is connected to the backplane. In the left
aligned position the signal is pulled down locally on the extender board.
4.2.3
Jumper JP3 (NAMC-EXT-PS only)
The setting of jumper JP3 defines the source of Management Power. By default,
Management Power is taken from the backplane (jumper JP3 in the upper
position). In case there is no Management Power available (e.g. a test assembly
with just a +12V supply), Management Power can be generated on-board from
the +12V Payload Power. In order to make use of this feature, set jumper JP3 to
the lower position.
Upper position:
Management Power taken
from
backplane
Lower position:
Management
Power
generated
locally
Please note:
The function of Jumper JP3 is only valid on the
NAMC-EXT-PS
.
