Jumpers across pins 9–10 and 13–14 on header JP1 on the backplane are used to bring out
the ACT and LNK LED signals to header J6, which is used to connect the optional LCD/key-
pad module. Remove these jumpers (you may park them across pins 7–8 and 11–12 on
header JP1) if you do not wish to use the ACT and LNK signals on the LCD/keypad module.
D3
C5 +
1
2
DS1
R1
L3 R3 C4
TVS1
U2
D4
L2
J1
C9
C10
U5
51
J2
52
U 6
R9
SR9010
J3
J4
J5
J6
R2
J7
J8
R5
J9
U 4
C8
C16
C17
C19
C20
C22
C23
C25
C26
C28
C29
C31
C32
C34
C35
25
26
C13
C7
U3
RN1
C14
J10
1
2
LINK ACT LNK ACT
RCM CPU
JP1
Factory
Default
JP1
2
4
6
8 10 12 14
1
3 5
RCM
7
9
11 13
CPU
Figure 17. Header JP1 Configurations for ACT and LNK Signals
NOTE: The RCM positions for pins 1–2 and 5–6 on header JP1 are reserved for future
use and should not be used in customer applications at this time.
40
Smart Star (SR9000)
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