
78
Chassis SC946L JBOD User's Manual
Cascading Configuration, Backplanes to Internal Controller
Connecting Backplane in a Server to Internal Controller and to Backplane in a JBOD
1. Power down the system and remove the power cords from the rear of the power
supplies. Open the chassis cover and access the backplanes as described in your
system manual.
BPN-SAS3-946LEL1
1st Backplane
BPN-SAS3-946LEL1
2nd Backplane
CN4
CN1
CN3
CN2
Primary
Expander
Primary
Expander
AOM-S3108M-H8L-P
SAS Controller or AOM-
S3008-L8-SB HBA
Figure C-4. Backplane Cascading Configuration
CN4
CN3
1
3
1
4
Secondary
Expander
Secondary
Expander
A
E
H
5
1
17
32
A
C
40
1
41
80
14
68
1
4
1
6
5
10
5
10
20
9
A
C
A
C
A
C
+
A
1
E
3
K
7
9
R
A
1
E
3
K
7
9
R
A
1
E
3
K
7
9
R
A
1
E
3
K
7
9
R
A
1
E
3
7
9
1
2
3
Y
E
R
34
AP
A
DESIGNED IN USA
AOM-S3108M-H8L
REV: 1.10
MH1
SD3
Y1
OSC1
J4
U457
J10
JP5
Q125
C2476
C2469
C2472
L399
L400
L401
Q1
Q113
U440
R5100
R149
C2299
C2294
U11
LED3
LED2
LED1
TP28
C37
U424
U27
U26
U25
U24
U23
MH6
MH2
LED3: FAIL_LED
LED2:SYS_HB
LED1:ACTIVE_LED
SAS4-7
SAS0-3
JP5:
1:Tx 2:GND
3:Rx 4:VCC
J10: UART Debug
CN2
CN1
CN1
CN2
CN1
CN2
JBOD System
Server System
Server
Out Port
JBOD In
Upstream
Port
JBOD Out
Downstream
Port
2. Locate connectors CN1 and CN2 on the underside of the 1st backplane.
3. Plug the cables into the 1st backplane connectors CN1 and CN2, then route them to
connectors CN1 and CN2 on the underside of the AOM-S3108M-H8L-P SAS controller
or AOM-S3008-L8-SB HBA in the same server as the 1st backplane, as illustrated in
Figure C-4.