Alcatel-Lucent 7750 SR-a8 - Figure 56 Removing an AC PSU (7750 SR-A4); Figure 57 Removing an AC PSU (7750 SR-A8)

Removing and Replacing a PSU
174 7750 SR-a4 and SR-a8 Installation Guide
Figure 56: Removing an AC PSU (7750 SR-a4)
Figure 57: Removing an AC PSU (7750 SR-a8)
24579
7750 SR
-
a4 Fan Tray
Pwr
Stat
S
lot Layout
1/
1
X
P
1/
2
1
/
3
1
/
4
1
CP
M
A
CP
M
B
7
7
5
0
SR-
a
4
S
e
r
vice
R
o
ute
r
P
w
r
St
at
P
wr
7
7
5
0
MDA
-a
X
P
1
-
1
0
0
G
B
-
C
F
P
S
t
at
Lnk
P
wr
7
7
5
0
M
DA
-
a
2
0
-
1
G
B-
TX
S
t
at
L
n
k
1
Act
2
L
n
k
3
A
ct
4
L
n
k
5
A
c
t
6
L
n
k
7
Act
8
L
n
k
9
A
ct
10
L
n
k
11
Act
1
2
L
n
k
13
A
ct
14
L
n
k
15
Act
16
Ln
k
17
Act
18
L
n
k
19
A
ct
20
Sy
n
c
E/1
5
8
8
A
l
arm
s
1
P
PS
A
CO/
LT
C
r
iti
c
a
l
Lnk
D
TE
P
w
r
7
7
5
0
C
P
M-
a
S
tat
Co
n
s
o
l
e
M
gmt
O
E
S
B
I
TS
Com
pact
Fl
ash
D
C
E
Ac
t Lnk Act
M
a
j
or
Minor
Sy
n
c
E/1
5
8
8
A
la
rm
s
1
P
P
S
A
CO/
LT
Cri
t
i
c
a
l
Lnk
D
TE
Pw
r
7
7
5
0
C
P
M-a
S
tat
Co
n
so
l
e
M
gmt
O
E
S
B
I
TS
C
om
pact
Fl
ash
D
C
E
A
c
t
Lnk A
c
t
Ma
j
o
r
M
i
nor
P
w
r
7
7
5
0
S
R-
a
Stat
P
wr
Sta
t
7
7
5
0
M
D
A
-
a
XP
1
0
-
1
0
G
B-
S
FP
+
10
L
nk Act
9
Lnk A
ct
8
Lnk
Ac
t
7
Lnk Ac
t
6
Ln
k
A
ct
5
Lnk A
ct
4
L
nk
A
ct
3
Lnk
A
ct
2
Lnk A
ct
1
Lnk A
ct
P
wr
7
7
5
0
M
DA
-
a
4
4
-
1
G
B-
C
S
FP
/
S
FP
St
a
t
L
n
k/
A
ct
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
5
16
25
26
27
28
29
30
31
32
33
3
4
35
36
37
3
8
39
4
0
41
42
43
44
1
7
18
19
20
21
22
23
2
4
A
ir
F
ilt
er
A
c
c
es
s
7
75
0
S
R
-a4
2
4 31
7
7
5
0
S
R-a
4
Fan
Tr
ay
P
wr
St
a
t
Sl
o
t La
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
vice Router
Pwr
St
a
t
Pwr
Stat
7750
M
DA-aXP
1
0
-1
0
G
B
-SF
P
+
1
0
L
n
kAc
t
9
L
n
k
Ac
t
8
L
n
k
Ac
t
7
L
n
kAc
t
6
L
n
kAc
t
5
L
nk Act
4
L
n
k
A
c
t
3
L
n
k
A
ct
2
L
n
kAc
t
1
L
nk A
ct
Pwr
7750
M
DA
-
aXP
6-
10GB-SFP+
1
-
4
0
G
B-
Q
S
FP
+
Stat
6
L
n
k
A
c
t
7
L
n
k
Ac
t
5
L
n
k
Act
4
L
n
k
A
c
t
3
L
n
k
A
ct
2
L
n
kA
c
t
1
L
n
k
Act
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
nk A
c
t
1
L
n
kAc
t
2
L
n
k
Act
Pwr
7750 MD
A-a
4
4
-1
G
B
-
C
S
F
P
/
S
F
P
Stat
Lnk
/
Act
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
25
26
27
28
29
30
31
32
3
3
3
4
35
36
37
3
8
3
9
4
0
41
4
2
43
44
1
7
1
8
1
9
2
0
2
1
22
23
24
Pwr
7750
M
D
A
-a
2
0
-1
G
B
-TX
Stat
Lnk
1
A
c
t
2
Lnk
3
A
ct
4
Lnk
5
A
ct
6
Lnk
7
A
c
t
8
L
nk
9
A
ct
10
Lnk
11
A
ct
12
Ln
k
1
3
A
c
t
1
4
Lnk
1
5
A
c
t
1
6
Lnk
1
7
A
c
t
1
8
Lnk
19
Ac
t
2
0
Pwr
7750 MD
A-a
1
2
-1
G
B
-S
F
P
2
-1
0
G
B
-S
F
P
+
Stat
Lnk
/
Act
1
2
3
4
5
6
7
8
9
1
0
1
1
12
L
n
kA
c
t
1
3
14
L
n
k
A
c
t
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
nk
Act
1
L
nk
A
c
t
2
L
n
k
Act
P
wr
7
7
5
0
S
R-a
S
tat
S
y
ncE/15
8
8
Alar
ms
1
P
P
S
ACO/
L
T
Cri
t
i
cal
Lnk
DTE
P
wr
7
7
5
0
C
P
M-a
S
t
a
t
Co
n
s
ole
Mgmt OE
S
B
I
TS
C
ompact Flash
DCE
Act
Lnk
Act
M
aj
or
M
inor
Sy
n
c
E/
1
5
8
8
Alarms
1
P
P
S
A
CO
/LT
Cr
i
t
i
cal
Lnk
D
T
E
Pwr
7
7
5
0
C
P
M-
a
S
t
a
t
Co
n
s
o
le
M
gmt
O
E
S
B
I
T
S
C
ompact Flash
D
C
E
A
c
tLnk A
c
t
M
ajor
Mi
nor
Pwr
7
7
5
0
MDA
-
a
X
P
1
-
1
0
0
G
B
-
C
F
P
Stat
L
n
k
A
ir
F
ilt
e
r
A
c
c
es
s
7750
SR
-a
8
4
24580
2
31