Adlink cBP-3204[R] Manual do Utilizador descarregar pdf (Página 32)

22 • Power Supply Unit

Definitions of Pin Signals

Signal Definition

EN# Enable signal should be used to "turn on" the power supply outputs.

EN# is used in conjunction with INH# (see Table 2.1) and is typically

connected to ground to enable the power supply after other signals

on longer pins have made contact.

INH# Inhibit signal sho

uld 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. The INH# signal is typically connected to an

"ON/OFF" switch. Table 2.1 Module Power Supply Operation

V1(+5V) Current Share signal may be used between multiple power

supplies for load balancing. This signal is not required for single

power supply systems.

V1(+3.3V) Current Share signal may be used between multiple

power supplies for load balancing. This signal is not required for

single power supply systems.

SENSE

RTN

Return Sense shall be connected to the center of the backplane's

ground plane for accommodating power distribution losses. This

signal is required for modular power supplies.

V1 V1( +5V ) shall be connected via a low impedance to the backplane's

power plane for minimizing power distribution losses. This signal is

required for all modular power supplies.

V2 V1( +3.3V ) shall be connected via a low impedance to the

backplane's power plane for minimizing power distribution losses.

This signal is required for all modular power supplies.

V3 V1( +12V ) shall be connected via a low impedance to the

backplane's power plane for minimizing power distribution losses.

This signal is required for all modular power supplies.

V4 V1( -12V ) shall be connected via a low impedance to the

backplane's power plane for minimizing power distribution losses.

This signal is required for all modular power supplies.

RTN Return shall be connected via a low impedance to the backplane's

ground plane for minimizing power distribution losses. This signal is

required for modular power supplies.

V1SENSE

V1 (+5V) Sense shall be connected to the center of the backplane's

power plane for accommodating power distribution losses. This

signal is required for all modular power supplies.

V2SENSE

V1 (+3.3V) Sense shall be connected to the center of the

backplane's power plane for accommodating power distribution

losses. This signal is required for all modular power supplies.

ACL/

-DC IN

AC Line/Negative DC input shall be used as the AC Line voltage

input for supplies operating from AC, or the -DC voltage input for DC

input power supplies.

ACL/

+DC IN

AC Neutral/Positive DC input shall be used as the AC Neutral

voltage input for supplies operating from AC, or the +DC voltage

INH# = Low Low Open Open

EN# = Low Open Low Open

Power Status “OFF” “OFF” “ON” “OFF”

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