Bull Cedoc NovaScale R423, Инструкция по установке и эксплуатации

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5-18
N
ovaS
c
ale R423 Installation and User's Guide
Power SMB (I
2
C) Connector
The power SMB (I
2
C) connector,
called SMBUS, monitors the status
of the power supply, fan and system
temperature. See the table on the right
for pin defi nitions.
PWR SMB Header
Pin Defi nitions (SMBUS)
Pin# Defi nition
1 Clock
2 Data
3 PWR Fail (Input from PS to MB)
4 Ground
5 +3.3V
Alarm Reset
If three power supplies are installed,
the system can notify you when any of
the three power modules fail. Connect
JAR to a micro-switch to enable you
to turn off the alarm that is activated
when a power module fails. See the
table on the right for pin defi nitions.
Alarm Reset Header
Pin Defi nitions (JAR)
Pin Setting Defi nition
Pin 1 Ground
Pin 2 +5V
Overheat LED/Fan Fail (JOH1)
The JOH1 header is used to connect
an LED to provide warning of chassis
overheating. This LED will blink to in-
dicate a fan failure. Refer to the table
on right for pin defi nitions.
Overheat LED
Pin Defi nitions (JOH1)
Pin# Defi nition
1 5vDC
2 OH Active
OH/Fan Fail LED
States
State Message
Solid Overheat
Blinking Fan Fail
SMB
A System Management Bus header
is located at SMB. Connect the ap-
propriate cable here to utilize SMB
on your system.
SMB Header
Pin Defi nitions (SMB)
Pin# Defi nition
1 Data
2 Ground
3 Clock
4 No Connection