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AS2021M-UR+ User's Manual
Power Fail Alarm Reset
Header
Connect JAR to the alarm reset but-
ton on your chassis (if available) or to
a microswitch to allow you to turn off
the alarm that sounds when a power
supply module fails. See the table on
the right for pin defi nitions.
Compact Flash Power
A
Compact Flash Card Power
Connector is located at JWF1. For
the Compact Flash Card to work
properly, you will fi rst need to connect
the device's power cable to JWF1
and correctly set the Compact Flash
Jumper (JCF1).
SGPIO
SGPIO1 and SGPIO2 (Serial General
Purpose Input/Output) provide a bus
between the SATA controller and
the SATA drive backplane to provide
SATA enclosure management func-
tions. Connect the appropriate cables
from the backplane to the SGPIO1
and SGPIO2 header(s) to utilize
SATA management functions on your
system.
UID Button (SW1)
The SW1 button beside LAN2 provides
a UID (Unit Identifi er) function. Push
the button to illuminate an LED on the
front of the chassis to help locate the
server in a heavily populated rack.
Alarm Reset Header
Pin Defi nitions (JAR)
Pin#
Defi nition
1
Ground
2
Reset Signal
Compact Flash
Power Header
Pin Defi nitions (JWF1)
Pin#
Defi nition
1
+5V
2
Ground
3
Signal
SGPIO Header
Pin Defi nitions (SGPIO1, SGPIO2)
Pin#
Defi nition
1
NC
3
Ground
5
Load
7
NC
Note: NC indicates no connection.
5-18
Pin #
Defi nition
2
NC
4
Data
6
Ground
8
NC
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