F-5
Appendix F: SATA-743 Backplane Specifications
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
Hard drive failure
1.
System temperature over 50º Celsius.
2.
F-7 Front Jumper
Locations and Pin Definitions
Socket Settings
Jumper
Setting
Note
JP18
Open: No Reset (Default)
Closed: Reset
Buzzer reset*
JP25
Open: 45º C
1-2: 50º C (Default)
2-3: 55º C
Overheat temperature setting.
Figure F-2: Front Jumpers
+12V
+12V
GND
GND
GND
GND +5V
+5V
48
1
16
64
49
H7
H5
H3
MM2
SATA743
REV 3.00
R
S
UPER
pb
#1
#0
#2
#3
#4
#6
#5
#7
ACT IN
OH LED
JP10
JP13
JP25
JP26
JP18
JP35
BZ1
JP18: BUZZER RESET
JP35: GEM24 RST
JP25: OH TEMP.
OPEN 45 C
1-2 50 C
2-3 55 C
JP18
JP25
Explanation of Jumpers
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts be-
tween 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
Summary of Contents for SC743i-465
Page 20: ...SC743 Chassis Manual 3 6 Notes...
Page 40: ...SC743 Chassis Manual 4 20 Notes...
Page 54: ...SC743 Chassis Manual B 4 Notes...
Page 64: ...SC743 Chassis Manual C 10 Notes...
Page 74: ...SC743 Chassis Manual D 10 Notes...
Page 93: ...F 9 Appendix F SATA 743 Backplane Specifications Notes...