C-5
Appendix C: Backplane Specifications
DESIGNED IN USA
C285
C44
J6
J5
BZ1
3
1
JP25
3
1
JP18
4
1
JP2
MH3
MH2
MH1
J7
J4
D3
A
C
JP10
1
4
1-2:50
2-3:55
JP25:OH TEMP
OPEN:45
C
#1
#0
REV 1.01
SAS510T
C-6 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
JP18
2-3: No Reset (Default)
1-2: Reset
Buzzer enabled*
Buzzer disabled*
JP25
1-2: Default
Overheat temperature settings
1-2 50 degrees C
2-3 55 degrees C
Open 45 degrees C
JP18
JP25
Figure C-2: Front Jumpers
*The buzzer sound indicates that an overheat condition or drive failure has oc-
curred.