+
+
EC
20
+ +
+
L 1 4 7
M D I O 2 M D I O 1
+
1 1
EC 2 6
EC 2 2 EC 2 4
EC 1 7
+
L1 5 3
C 3 0
0
M H10
+ +
EC 9
2 8 2 5 2 0 1 5
1 0 5
+
+
EC7
+
EC
6
+
EC
5
EC
4
+
+
EC
3
+
EC
29
+
EC
28
EC
27
+
EC
25
+
EC
23
+
EC
21
+
EC
2
+
EC
15
+
C 3 6 7
C 8 7 2
+
1
E C 1 4
8
J2 5
WWN
+
EC
13
+
EC
12
+
EC
11
EC
10
4
+
C8
64
+
EC
1
+
1
F1
1 2 V_LED
A
C
5 V_ LED
A
C
C
A
AC T2 5
AC T2
4
1
J2 6
C A
PR
I_
M
O
DE
1
1
SEC _ M O
D
E
1
3
SEC _ M O
DE2
1
3
PRI_MO D
E2
1
3
+
+
EC
19
C2972
C2973
+
+
+
C2970
+
C 2 9 2
6
+
+
EC
34
+
+
EC
16
EC
18
+
+
C87
0
+
+
C 8 6
7
++
+
C866
+
C 8 6
5
+
C863
C862
C861
M H 9
SEC _ J2
M H1
M H2
M H5
M H7
PWR4
PWR3
M H 4
M H3
M H1
3
M H1
1
M H1
5
1
4
PWR2
1
FA N 2
4
+1 2 V
G N D G N D +5 V
FAN3
4
1
1
8
Y
E
R
K
A
E
A
H
5
10
15
20
25
28
Y
E
R
K
A
E
A
H
+ 1 2 V
G N D
G N D + 5 V
U5
PWR6
PR
I_
FL
AS
H
1
2
J2 7
1
EX
PD
BG
1
4
EX
PD
BG
2
UA
RT
_
S
4
4
1
1
UA
RT
_P
1
U
330
PR
I_
I2
C
BAR CODE
SC846 Chassis User's Manual
E-7 Front Jumper Locations and Settings
M H12
FAN_MONITOR_DISABLE
L1
FANFAIL_LED_DISABLE
R4 6 35 R4 6 31
BUZZER1
ACTLED1
DESIGNED IN USA 1
1 1
C TLED1
+ 1 2 V G N D G N D + 5 V
+ 1 2 V G N D G N D
+ 5 V
EXPDBG2
PWR5
+1 2 V G N D
G N D + 5 V
+1 2 V G N D
G N D +5 V
PWR1
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
UART_P
UART_S
EXPDBG1
SEC_MODE1
PRI_MODE2
BUZZER_ENB1
BPN-SAS2-846EL2
BUZZER_ENB1
FA N _ M O N I TO R _ D I S A B L E
FA N FAIL1
A C
O VERHEATFAIL1
M H1
4
A
C
FA N FAIL_ LED_ DISABLE
PRI_ J2
PRI_ J1
PRI_J0
M H6
SEC _ J0
SEC _ J1
M H8
J2 4
WWN
REV 1.10
SEC_MODE2
PRI_MODE1
Figure E-2: Front Jumper Locations and Settings
E-6
