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SUPERSERVER 5018A-MLTN4 User's Manual
Chassis Intrusion
The Chassis Intrusion header is des-
ignated JL1. See the board layout for
the location of JL1 and the table on
the right for pin definitions.
Fan Headers
There are three fan headers on the
A1SAM-2550F. All are 4-pin fans but
are backward compatible with tradi-
tional 3-pin fans. Fan speed control,
however, is available for 4-pin fans
only (via BMC). See the table on the
right for pin definitions.
Note:
the fans on the A1SAM-2550F
are not hot-swappable.
NMI Button
The non-maskable interrupt button
header is located on pins 19 and 20
of JF1. Refer to the table on the right
for pin definitions.
NMI Button
Pin Definitions
Pin# Definition
19
Control
20
Ground
Fan Header
Pin Definitions
Pin# Definition
1
Ground (Black)
2
2.5A/+12V (Red)
3
Tachometer
4
PWM Control
Chassis Intrusion
Pin Definitions
Pin# Definition
1
Intrusion Input
2
Ground
Universal Serial Bus (USB)
There are four Universal Serial Bus
ports located on the I/O backpanel
(USB01/, USB2/3) and an additional
header located on the motherboard.
The header, labeled USB4/5, as well
as USB 6, a Type A port, can be used
to provide front side USB access
(cables not included). See the tables
on the right for pin definitions.
USB Headers
Pin Definitions (USB0/1, USB4)
USB4/6
Pin # Definition
USB5
Pin # Definition
1
+5V
1
+5V
2
PO-
2
PO-
3
PO+
3
PO+
4
Ground
4
Ground
5
No connection
5
Key
Back Panel USB0/1, 2/3
Pin Definitions
Pin # Definition
Pin # Definition
1
+5V
1
+5V
2
USB_PN1
2
USB_PN0
3
USB_PP1
3
USB_PP0
4
Ground
5
Ground
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