C-7
Appendix C: BPN-SAS-825TQ Backplane Specifications
C-6
SC825 Chassis Manual
1
1
16
32
48
BAR CODE
REV 2.0
SAS825TQ
1
GND
GND
+12V
+5V
GND
GND
+12V
+5V
#2
I C
#1
ACT_IN
JP29:9072 RESET
I C
SIDEBAND #2
SIDEBAND #1
2
2
+ +
+ +
+ +
+ +
+
+
+
+
+
+
1
1
1
16
32
48
GND
GND
+12V
+5V
GND
GND
+12V
+5V
+
+
+
BAR CODE
+
+
+
REV 2.0
SAS825TQ
#2
2
I C
#1
ACT_IN
JP29:9072 RESET
2
I C
SIDEBAND #2
SIDEBAND #1
+ +
+ +
+ +
+ +
SGPIO and I
2
C Modes and Jumper Settings
This backplane can utilize SGPIO or I
2
C, which is the default mode and can be
used without making changes to your jumpers. The following information describes
which jumper must be configured to use SGPIO mode.
C-7 Front Jumper Locations and Pin Definitions
Explanation of Jumpers
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the function
of the connector. Pin 1 is identified with
a square solder pad on the printed circuit
board.
Note:
On two pin jumpers, "Closed"
means the jumper is on and "Open" means
the jumper is off the pins.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
Jumper Settings
Jumper
Jumper Settings
Note
JP29
Open (Jumper off the pins): Default
Closed (Jumper on the pins): Reset
MG9072 chip reset
JP18
Open (Jumper off the pins): Default
Closed (Jumper on the pins): Reset
Buzzer reset*
Figure C-3. Front Jumpers
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
1. Hard drive failure
2. System temperature over 45º Celsius.
JP18
JP29
JP50
JP37
JP38
JP34
JP36
JP43
JP33
JP42
JP41
JP40
Closed, jumper on
Open, jumper off
the pins.
the pins.
SGPIO Settings
Jumper
Jumper Setting
Notes
JP33
Pins 1-2
Controller ID #1
JP34
Pins 1-2
Backplane ID #1
Pins 1-2: ID#0
JP36
Pins 1-2
Controller ID #2
JP37
Pins 1-2
Backplane ID #2
Pins 1-2: ID#0
JP38
Open (Jumper off the pins)
I
2
C Reset #2
JP40
Closed (Jumper on the pins)
I
2
C Reset_SDOUT#1
JP41
Closed (Jumper on the pins)
I
2
C Reset_SDOUT#2
JP42
Pins 1-2
I
2
C Backplane ID_SDIN#1
JP43
Pins 1-2
I
2
C Backplane ID_SDIN#2
JP50
Open (Jumper off the pins)
I
2
C Reset #1
Summary of Contents for SC825TQ-560LP
Page 5: ...SC825 Chassis Manual viii Notes...
Page 9: ...SC825 Chassis Manual 1 6 Notes...
Page 20: ...2 20 SC825 Chassis Manual Notes...
Page 37: ...SC825 Chassis Manual 5 22 Notes...
Page 42: ...SC825 Chassis Manual 6 8 Notes...
Page 46: ...SC825 Chassis Manual A 6 Notes...
