Alcatel-Lucent 7750 SR-a4 - Figure 58 Replacing an AC PSU (7750 SR-A4); Figure 59 Replacing an AC PSU (7750 SR-A8)

Removing and Replacing a PSU
176 7750 SR-a4 and SR-a8 Installation Guide
Figure 58: Replacing an AC PSU (7750 SR-a4)
Figure 59: Replacing an AC PSU (7750 SR-a8)
7750
S
R
-
a
4 Fan
T
ray
Pwr
Stat
S
l
ot
L
ay
o
ut
1/
1 XP
1
/
2
1
/
3
1
/
4
1
CP
M
A
CP
M
B
7
7
50 S
R
-a4
S
e
r
vic
e
Ro
ute
r
Pwr
S
t
a
t
Pwr
7
7
5
0
MDA
-
a
X
P
1
-
1
0
0
G
B
-CF
P
S
t
a
t
Ln
k
Pwr
7
7
5
0
M
DA-a
2
0
-
1
G
B-
TX
S
t
a
t
L
n
k
1
Ac
t
2
L
n
k
3
Ac
t
4
L
n
k
5
Ac
t
6
L
n
k
7
Ac
t
8
L
n
k
9
A
c
t
10
Lnk
11
Ac
t
12
L
n
k
13
Ac
t
14
L
n
k
15
A
c
t
16
L
n
k
17
A
ct
18
L
n
k
19
Ac
t
20
Sy
n
c
E/1
5
8
8
A
la
rm
s
1
PP
S
A
C
O
/
LT
Cr
i
t
i
c
a
l
Lnk
DTE
Pwr
7
7
5
0
C
P
M-a
St
a
t
Co
n
s
o
l
e
M
gmt
O
E
S
B
I
TS
C
o
m
pact
F
l
ash
DCE
A
c
t
Lnk
A
c
t
Ma
j
or Mi
nor
Sy
n
c
E/1
5
8
8
A
la
r
m
s
1
P
P
S
A
CO/
LT
C
r
i
t
i
c
a
l
Lnk
DTE
P
w
r
7
7
5
0
C
P
M-a
St
a
t
C
o
n
so
l
e
M
gmt
O
E
S
B
I
TS
C
om
pact
Fl
ash
DCE
Ac
t
Lnk Ac
t
M
a
j
or Mi
nor
P
w
r
7
7
5
0
S
R-
a
S
t
at
P
w
r
S
t
at
7
7
5
0
M
D
A
-
a
XP
1
0
-
1
0
G
B-
S
FP
+
10
Lnk A
c
t
9
Lnk Ac
t
8
Lnk Act
7
Lnk
A
c
t
6
Lnk
Act
5
Lnk Act
4
Lnk
Act
3
Lnk
Act
2
Ln
k
Act
1
Lnk
A
ct
Pwr
7
7
5
0
M
DA-a
4
4
-
1
G
B-
C
S
FP
/
S
FP
S
t
a
t
Ln
k/
Ac
t
1
2
3
4
5
6
7
8
9
10
11
1
2
1
3
1
4
15
16
25
26
27
28
29
30
3
1
32
33
34
3
5
36
3
7
38
39
40
41
42
43
44
17
18
19
20
21
22
2
3
24
A
ir
F
ilt
er
A
c
c
es
s
775
0
S
R
-a
4
2
4 3
1
24553
7
7
5
0
S
R-a
4
F
a
n
Tra
y
P
wr
S
t
a
t
Sl
o
t
L
a
you
t
1
/
1
XP
1
/
2
1
/
3
1
/
4
2
/
1
XP
1
2
/
2
XP
2
/
3
2
/
4
C
PM
A
2
C
PM
B
7750
S
R
-
a8
Ser
vi
ce Router
P
wr
S
t
at
Pwr
Stat
7750
M
DA
-
aXP
1
0
-1
0
G
B
-S
F
P
+
10
L
n
k
Ac
t
9
L
n
kA
c
t
8
LnkAc
t
7
L
n
kAc
t
6
L
n
k
A
c
t
5
L
n
k
Act
4
L
n
kAc
t
3
L
n
kAc
t
2
L
n
k
A
c
t
1
L
nk A
ct
Pwr
7750
M
DA-
aX
P
6
-
1
0
G
B-
S
FP
+
1
-
4
0
G
B-
Q
S
FP
+
Stat
6
L
n
k
A
c
t
7
L
n
k
A
c
t
5
L
n
kAc
t
4
L
n
k
A
c
t
3
L
n
k
A
c
t
2
L
n
k
A
c
t
1
L
n
k
A
ct
Pwr
7
7
5
0
M
D
A-
a
4
-
1
0
G
B-
S
FP
+
Stat
3
L
n
k
A
c
t
4
L
n
k
A
c
t
1
L
n
kAc
t
2
L
n
k
Act
P
wr
7
750 MDA-a
4
4
-1
G
B
-
C
S
F
P
/
S
F
P
S
t
at
L
n
k
/
A
c
t
1
2
3
4
5 6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
4
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
P
wr
7
750
M
D
A
-a
2
0
-1G
B
-
T
X
S
t
at
L
n
k
1
A
c
t
2
L
n
k
3
A
c
t
4
L
n
k
5
Ac
t
6
L
n
k
7
A
c
t
8
L
n
k
9
A
ct
1
0
L
n
k
1
1
A
ct
1
2
L
n
k
1
3
A
c
t
1
4
L
n
k
1
5
A
c
t
1
6
L
n
k
1
7
Ac
t
1
8
L
n
k
1
9
Ac
t
2
0
P
wr
7
750 MDA-a
1
2
-1
G
B
-
S
F
P
2
-1
0
G
B
-S
F
P
+
S
t
at
L
n
k
/
Ac
t
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
L
n
k
Act
1
3
1
4
L
n
k
A
c
t
P
wr
7
7
5
0
M
D
A
-
a
4
-
1
0
G
B-
S
FP
+
S
t
at
3
L
n
k
A
c
t
4
L
n
k
A
c
t
1
L
n
k
Act
2
L
n
k
Act
P
w
r
7
7
5
0
SR-a
S
t
a
t
S
y
ncE/15
8
8
A
la
rm
s
1
P
P
S
A
CO/
LT
Cr
i
t
i
c
a
l
Lnk
D
T
E
P
w
r
7
7
5
0
C
P
M-a
S
t
at
Co
n
s
o
l
e
M
gmt O
E
S
B
I
TS
C
om
pact
Fl
ash
DCE
Ac
t
Lnk Ac
t
M
a
j
or Mi
nor
Sy
n
c
E/
1
5
8
8
A
la
rm
s
1
P
P
S
A
C
O
/
LT
Cr
i
t
i
c
a
l
Lnk
DTE
Pwr
7
7
5
0
CPM-
a
S
t
a
t
Co
n
so
l
e
M
gmt
O
E
S
B
I
T
S
C
om
pact
Fl
ash
DCE
A
c
t
Lnk A
c
t
M
a
j
or Minor
P
w
r
7
7
5
0
MDA
-a
X
P
1
-1
0
0
G
B
-
C
F
P
Sta
t
Ln
k
A
ir
F
i
lt
er
Ac
c
e
s
s
775
0
SR
-a8
2
4
1
3
24590