2-2
BPN-SAS3-827HQ Backplane
User's Guide
1-4. Power Connectors
These connectors, designated JPW1, JPW2, JPW3 and JPW4 supply power to the
four motherboard nodes.
5-8. Chassis Fan Connectors
These connectors, designated JP54, JP55, JP56 and JP57 supply power to the
chassis. cooling fans.
4
4
26
50
51
75
76
20
1
20
1
1
13
12
24
3
2
1
1 2 3
A
C
A
C
A
C
A
C
A
C
A
C
A
C
A
C
A
C
1
4
1
12
7
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
B37
B32
B33
A1
B1
A37
B37
B32
B33
A1
B1
A37
B32
A1
B1
A37
B37
B32
B33
A1
44
34
11
12
22
23
33
11
12
22
23
33
1
2
5
6
1
2
5
6
1
2
5
6
1
1
1
A
C
A C
A
C
A
C
A
C
1
5
8
1
5
4
8
4
1
4
1
4
1
4
1
BPN-SAS3-827HQ
REV: 1.01
DESIGNED IN USA
BAR CODE
3
JF5
JF6
JPW1
C246
D62
D61
D60
D59
D58
D57
D56
D55
LE1
U30
J25
JPW4
C45
C51
C75
C82
C83
C84
C85
C86
C87
C88
C89
C90
C91
C92
C93
C94
JF1
JF2
JF3
JF4
U2
U8
JP71
JP70
JP69
JP39
JP38
JP36
D63
D51
D52
D54
F46
R402
R56
R32
JPI2C1
JPW3
JPW2
JP55
JP54
JP57
JP56
DEFAULT:SHORT 3-5
DEBUG
SPI PROG
JP71:UPGRADE #2
JP70:UPGRADE #1
+5V
+12V
5V-SB
GND
+12V
JP39:
OPEN:DEFAULT
CLOSE:PS_ON
JF6-CD
JF5-AB
MB
-C
MB
-D
M
B-A
MB
-B
JP36:
OPEN:DEFAULT
CLOSE:ANY POWER BUTTON
JP38:
OPEN:DEFAULT
CLOSE:LED TEST
FAN4
FAN3
FAN2
FAN1
FAN4 FAN3
FAN2
FAN1
Cables
BPN-SAS3-827HQ
Backplane
System Fans
Figure 2-2. Default Configuration - Fans Connected Directly to the Backplane
9. Power Supply Connector
The 5-pin connector, designated JPI2C1, connects the power supply SMbus to
the MCU.
10-13. Motherboard to Backplane Connectors
These connectors, designated JF1, JF2, JF3 and JF4 connect the motherboards
to the backplane on the chassis. JF1 connects to motherboard A. JF2 connects
to motherboard B. JF3 connects to motherboard C and JF4 connects to moth-
erboard D. See the table on the previous page to determine the locations of the
motherboards within the chassis.
14-15. Backplane to Front Panel Headers
These connectors are designated JF5 and JF6. They connect the backplane to
the front LED panels on the chassis. JF5 connects to the LED display panel for
motherboards A and B. JF6 connects to the LED display panel for motherboards
C and D.
16-18. Upgrade Connectors #1 - #2
These connectors are designated JP70 and JP71. They are for the manufac-
turer's diagnostic use only.
