Supermicro SC826 JBOD User Manual page 85

B-12 JBOD Control Board
In a cascaded configuration, the first chassis includes a motherboard and at least
one host bus adapter (HBA). Other storage enclosures in the system must be
equipped with a JBOD control board. This board controls power and provides some
mangement over the chassis components. For more information, see Appendix C
in this manual, or the Supermicro web site at www.supermicro.com.
The SC826 JBOD chassis includes the JBOD control board.
Connection to Backplane
The I C cables from the JBOD control board (JP1-JP4) are connected to the I2C#0
2
connector on the BPN-SAS3-826EL backplane.
J23
MH8
MH4
+ + 1 4
SEC-UART
C496 C497
C5
U6
U17
JPW3
C52
MH5
U21
C681
C689
JPW2
U14
JPW1 L23
JP1 to JP4 (see Appendix C)
4
1 3
2 4
1 6
1 3
4
2
9
JP2
JP3
1 3
2 4
5
1 3
2
J3 4
JP7
#
3
+ 1
J2
LE1
15
17 16 19 F1 JP6
6 12 C115
U7
48
L7
12
13
18
1
14 13 7
J8
Appendix B BPN-SAS3-826EL Backplane Specifications
LED28 HB-LED
7 I2C#4
J21
24 U34
4
3 2 1
SEC-SDB
J19
1 4
C495
U27
SECONDARY EXPANDER
+
J17
MH3
C499
+
C500
J16
+
L22
U20
BAR CODE
MH1
4 4
4
FAN2 FAN4
FAN3
C146
4
+
U*
FAN9
Q18
U9
Y1
BT1
Q13
U13 U18
U14 U17 U16
37
36
J5
J4 J6 J7
2 2 2 2
25
1 1 1
24
1
MH4
JP5
7 7 7
8 8 8 8 7 1-2:SAS3
2-3:SAS2_847D
Figure B-11. SAS I
I2C#0)
DESIGNED IN USA
I2C#0
J20
U30
U22
BPN-SAS3-826EL1
MH9
SAS CODE
4 3 2 1
REV:1.00
C501 +
ACT-LED
C494
TEST
1
JP1 +
U16
U24
+ C491
+
L3
4
4 4
C160 FAN5 FAN6
15
10
5
9
1
A E K R Y
1
20 JF1 2
JP5 3
CB3 JBOD Control Board
C Cabling
2
B-13
PRI-SDB C502 +
LED29 A
C
J18 R97 A C C A
1 4 LED25 LED26
12V 5V
MH6
1 4
PRI-UART
J22
SAS CODE
U7
C492 C498 J*
+
+
PRIMARY EXPANDER
1
MH2
J*
BPN-SAS3-826EL backplane
4
MH2
1
5
13
+
C
C10
C4
U1
FAN10
A
U5
C89
C9
+
7 3 1
+
U6
C8
JPW1
24
JF1
MH3 NMI X PWR LED X NIC1 X OH/FF X RST ON PWR ON
12
MH1 MH7
J15
J14
3
2
1