3-1

Safety Information and Technical Speci cations
Chapter 3 SAS-I28A Backplane Speci cations

3-1 Front Connectors and Jumpers

DESIGNED IN USA
BAR CODE
TP4TP3
+
C77
+
C78
+
C84
JP1
14
JP3
1
4
JP62 13
JP61
1
3
JP25 1
3
JP46
1
2
5
6
JP47
1 2
56
1
JP54
A1
B1
A18
B18
JSM1
A1
B1
A18
B18
JSM2
MH1 MH2
RP14
12
22
23
33
34 44U40
23
34
44
Y1
Y2
R69
OPEN 45 C
1-2 50 C
2-3 55 C
9071 RST
ACT LED TEST
JP62
1-2 WITH FAN
2-3 NO FAN
2-3 NO FAN
1-2 WITH FAN
JP61
JP25: OH TEMP
UPGRADE #2 UPGRADE #1
FANSAS IN #4-#7 SAS IN #0-#3
+5V+12V
REV 1.00BPN-SASI28A
Front Connectors and Components
SAS IN #0 - #3: JSM11.
SAS IN #4 - #7: JSM22.
Power connector: JP13.
Power connector: JP34.
MG9071 chip5.
MG9071 chip6.
Upgrade connector #1: JP467.
Upgrade connector #2: JP478.
Fan connector: JP54 9.
1
1
1
2
1
3
1
9
1
4
1
6
1
7
Figure 3-1: Front Connectors and Components
1
5
1
8