ADLINK cBP-3062 - Manual (Page 25)

Power Supply Unit
• 15
Definitions of Pin Signals
Signal Definition
INH# Inhibit signal MAY be used to “turn off” the power supply outputs. This
signal is on a longer pin than the EN#(enable) signal and therefore has
precedence over the EN# signal when determining power supply
operation (see table below). The INH# signal is typically connected to
an “ON/OFF” switch. This signal is optional.
Module Power Supply Operation
ISH Current Share signal MAY be used between multiple power supplies
for load balancing. This signal is not required for single power supply
systems.
5S
−
5V Sense – SHALL be connected to the center of the ground plane for
accommodating power distribution losses. This signal is required for all
modular power supplies.
5S+ 5V Sense + SHALL be connected to the center of the power plane for
accommodating power distribution losses. This signal is required for all
modular power supplies.
ACL AC Line input SHALL be used for supplies operating from AC. This
input is not required for DC input power supplies. Separate AC and DC
inputs are provided to prevent damaging an AC power supply inserted
into a backplane wired for DC and visa versa.
ACN AC Neutral input SHALL be used for supplies operating from AC. This
input is not required for DC input power supplies.
+DC Positive DC input SHALL be used for supplies operating from DC. This
input is not required for AC input power supplies. Separate AC and DC
inputs are provided to prevent damaging a DC power supply inserted
into a backplane wired for AC and visa versa.
−DC
Negative DC input SHALL be used for supplies operating from DC.
This input is not required for AC input power supplies.
EN# Enable signal MAY be used to “turn on” the power supply outputs. EN#
is used in conjunction with INH# (see table of INH#) and is typically
connected to ground to enable the power supply after signals on longer
pins have made contact. This signal is optional.
DEG# Derating signal MAY be used as an output from the power supply to
indicate that the supply is beginning to derate its power output. This
signal is optional. Note that backplanes providing a modular power
supply connector shall connect DEG# to the backplane signal DEG# in
the event that a power supply implementing this signal is installed.
FAL# Supply Fail signal MAY be used as an output from the power supply to
indicate that it has failed. This signal is optional. Note that backplanes
providing a modular power supply connector shall connect FAL# to the
backplane signal FAL# in the event that a power supply implementing
this signal is installed.
INH# = Low Low High High
EN# = Low High Low High
Power Status “OFF” “OFF” “ON” “OFF”