
C-5
Appendix C: SAS-808 Backplane Specications
J5
J6
J7
J8
JP10
JP13
D3
#0
SAS
D5D12
J1
SAS
#1
D6
D13
J2
SAS
#2
D7
D14
J3
#3
SAS
D8
J4
R82
D15
GNDGND+12V +5V
GNDGND+12V +5V
1
REV 1.0
SAS808
#3
#2
#1
#0
C-7 Front Jumper Locations and Pin Denitions
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 identied 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
JP18
Open: Default
Closed: Reset
Buzzer reset*
JP25
Open: 45º Celcius
C-2: 50º Celcius (Default)
2-3: 55º Celcius
Overheat temperature
JP18
J5
J6
J7
J8
JP 10
JP 13
D3
#0
SA S
D5D12
J1
SA S
#1
D6
D13
J2
SA S
#2
D7
D14
J3
#3
SA S
D8
J4
R82
D15
GNDGND+12V +5V
GNDGND+12V +5V
1
REV 1.0
S A S8 08
#3
#2
#1
#0
JP25
Figure C-2: Front Jumpers
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following condition:
A system temperature over 50º Celsius.
Komentarze do niniejszej Instrukcji