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C-6 Front Jumper Locations and Pin Definitions
BZ1
MH3
1
4
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.
Jumper
2-3: No Reset (Default)
JP18
1-2: Reset
JP25
1-2: Default
*The buzzer sound indicates that an overheat condition or drive failure has oc-
curred.
1
JP10
DESIGNED IN USA
Figure C-2: Front Jumpers
Jumper Settings
Jumper Settings
Appendix C: Backplane Specifications
4
REV 1.01
SAS510T
JP25:OH TEMP
OPEN:45
2-3:55
C
1-2:50
Buzzer enabled*
Buzzer disabled*
Overheat temperature settings
1-2 50 degrees C
2-3 55 degrees C
Open 45 degrees C
C-5
C285
MH2
D3
1
JP25
3
JP25
JP18
1
3
MH1
3
2
Connector
Pins
Jumper
3
2
Setting
Note
1
1
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