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Supermicro SC747 Chassis User's Manual
9. Activity LED Header
The activity LED header,
designated JP26, is used to
indicate the activity status of each
SAS drive. For the activity LED
header to work properly, connect
a 10-pin LED cable.
6. and 7. Sideband Headers
The sideband headers are
designated JP51 and JP52.
For SES-2 to work properly, an
8-pin sideband cable must be
connected. See the table to the
right for pin definitions.
10. Fan Connector
The 3-pin connector, designated
JP22, provides power to the
mobile rack fan. See the table on
the right for pin definitions.
8. Upgrade Connector
T h e u p g r a d e c o n n e c t o r,
designated JP46, is used for
diagnostic purposes only. This
connector should only be used
by a certified and experienced
technician.
11 - 15. SAS/SATA Ports
The SAS/SATA ports are used
to connect the SAS/SATA cables
from the ports to the hard drives.
The five ports are designated #0
- #4.
Fan Connector
Pin#
Definition
1
Ground
2
+12V
4
Tachometer
Sideband Headers
Pin#
Definition
Pin#
Definition
2
Mobile rack
Addressing (SB5)
1
Controller ID
(SB6)
4
Reset (SB4)
3
Ground (SB2)
6
Ground (SB5)
5
SDA (SB1)
8
Mobile Rack ID (SB7) 7
SCL (SB0)
10
No Connection
9
No Connection
SAS Activity LED Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
ACT IN#0
6
ACT IN#4
2
ACT IN#1
7
ACT IN#5
3
ACT IN#2
8
ACT IN#6
4
ACT IN#3
9
ACT IN#7
5
Ground
10
No Connection