6-4
SC846B JBOD Chassis Manual
9. PMBus Connector
This connector is designated JPI2C1 and connects the power distributor to the
Power Management Bus (PMBus).
10. Fan Connectors
The fan connectors supply power to the fans and are designated FAN1-FAN10.
11. ATX Power Connector
The ATX power connector is designated JPW1.
Jumpers and LED Indicators
SAS2/SAS3 Jumpers
Jumper
Description
JP7
Pins 1-2: Obsolete, do not use
Pins 2-3: User mode (static/DHCP, default)
JP5
Pins 1-2: SAS3 enabled
Pins 2-3: SAS2 enabled and SC847D
Figure 6-2. Jumpers
To enable SAS2 or SAS3 functionality on the I
2
C connectors, set the JP5 jumper
as noted.
1
2
5
6
1
3
1
3
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
24
13
12
1
+
+
+
+
A
1
E
3
K
7
9
R
3
2
1
1
2
3
1
2
7
8
1
2
7
8
1
2
7
8
1
2
7
8
1
2
19
20
1
5
1
5
6
9
1
2
10
+
+
4
1
4
1
4
1
4
1
4
1
4
1
4
1
4
1
4
1
4
1
1
7
6 12
15
17
13
14
16
19
18
A
C
A
C
A
E
K
R
Y
1
5
10
20
12
13
24
25
36
37
48
MH2
MH4
JP6
U*
U18
U17
U16
U14
U13
JP7
JP5
JP1
JP2
JP3
JP4
JPW1
BT1
C10
Y2
U9
MH3
MH1
C153
J4
J6
J7
J5
JF1
JPI2C1
J3
J2
U12
U11
C131
C8
C9
FAN1
FAN2
FAN3
FAN4
FAN5
FAN6
FAN7
FAN8
FAN10
FAN9
J8
U8
Q27
Q16
D16
FB1
C6
C21
C4
LE2
LE1
F1
Y1
Q5
Q4
U1
U5
U6
U3
U7
L7
JP5
JP7
2-3:DHCP 1-2:S
ta
tic IP
2-3:SAS2_847D
1-2:SAS3
JF1
NMI X PWR LED X NIC1 X OH/FF X RST ON PWR ON
%
#
JP5
JP7