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D-6
SC827 Chassis Manual
D-6 Front Jumpers and Pin Denitions
11
12
22
23
33
3444
BZ1
+
TP5
TP1
TP3
TP2
1
4
J21
1
JP36
1
JP35
JPI2C1
1
5
U37
U44
U43
U38
JPW3
1
5
4
8
JPW2
1
5
4
8
JPW1
12
24
13
1
JF4
50
51
45
1
2
46
54
47
24
23
JF3
50
51
45
1
2
46
54
47
24
23
JF2
50
51
45
1
2
46
54
47
24
23
JF1
50
51
45
1
2
46
54
47
24
23
F13
F14
F15
F16
RT6
JP18
1 3
JP30
1
3
4
1
JP55
4
1
JP54
4
1
JP57
4
1
JP56
JF5
JF6
U13
DESIGNED IN USA
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
F35
F36
F38
F10
F11
F12
F17
F7
F8
F9
C196
C210
C194
C121
C155
C158
C26
C28
C29
C266
C267
C268
C269
C39
C4
C115
C156
C159
C168
C171
C174
C177
C57
C58
C64
C77
C80
C195
C193
C114
C124
C143
C167
C170
C173
C176
C18
C19
C21
C79
+
C199
+
C200
+
C203
+
C119
+
C197
+
C198
+
C201
+ C3
+
C44
+
C45
+
C84
+
C85
C43C46
C49
C67
C53
C42
C116
C123
C126
C14
C15
C157
C160
C169
C17
C175
C178
C24
C25
C48
C78
C
A
D1
C
A
D11
R206
R203
R204
R69
R65
R64
R222
R223
R224
R128
R132
R133
R134
R135
R49
R51
R214
R215
R216
R217
R187
R186
R188
R142
R144
R145
R67
R11
R141
R48
R53
R12
R10
R106
R107
R121
R125
R85
CR13
CR4
CR5
CR6
D79
D78
D76
D74
D73
D71
D70
D69
D67
D66
D65
D63
D62
D61
D60
D59
D58
D57
D56
D55
JP69
BAR CODE
JF6-CD
JF5-AB
MB-C
MB-D
MB-A
MB-B
1
1
JP36:
OPEN:DEFAULT
CLOSE:ANY POWER BUTTON
JP35:
OPEN:DEFAULT
CLOSE:LED TEST
TO PS
SPI
DEBUG
JP30:
OPEN:45
C
2-3:55
C
C DEFAULT
1-2:50
FAN4
FAN3
FAN2
FAN1
JP18
2-3:TEST
1-2:BUZZER ENABLE
OPEN:BUZZER DISABLE
BUZZER RESET
REV 1.01
SAS827B
JP69
Buzzer
JP30
J21
JP18
JP36
JP35
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 Notes
JP18
Open: Buzzer disabled
1-2: Buzzer enabled (Default)
2-3: Test setting
*Buzzer reset
JP30
Overheat Settings
Open: 45º Celsius
1-2: 50º Celcius (Default)
2-3: 55º Celcius
Backplane overheat settings
JP35
Open: Default
Closed: LED test
LED testing
JP36
Open: Default , multiple power
button functionality
Closed: Single power button
functionality
Any power button
JP69
FW upgrade connector
Figure D-3: Front Jumpers
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The backplane buzzer alarm is triggered by the following condition:
Backplane temperature over 45º, 50º or 55º Celsius, depending upon the 1.
overheat setting selected. See the table above for details.