Alcatel-Lucent 7750 SR-a8 - Table 42 Installing a DC PSU; Figure 30 Installing a -48 VDC PSU (7750 SR-A8)

Installing PSUs
7750 SR-a4 and SR-a8 Installation Guide 99
Figure 30: Installing a –48 VDC PSU (7750 SR-a8)
To install a –48 VDC PSU in a 7750 SR-a chassis:
Step 1. Align the PSU module with the chassis guides in power slot (Key 1 in Figure 29
and Figure 30).
Step 2. Grip and hold the handle (Key 2 in Figure 29 and Figure 30) on the PSU with your
hand.
Step 3. Slide the unit into the slot. Firmly press the PSU module all the way into the slot.
The latch (Key 3) clicks into place to secure the PSU when the unit is fully inserted.
Table 42: Installing a DC PSU
Key Description
1 Chassis guide in the power slot
2 DC PSU handle
3 Spring-loaded latch lock
4 Direction of movement
7
7
5
0
S
R-a
4
Fan
T
r
a
y
P
wr
S
tat
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
CP
M
B
77
50 S
R
-
a8
Ser
v
ice R
outer
P
w
r
S
tat
Pwr
St
at
7750
M
DA-aXP
1
0
-1
0
G
B
-S
F
P
+
10
L
n
kAc
t
9
Ln
k
Ac
t
8
L
n
kA
ct
7
L
nk A
c
t
6
L
n
kA
c
t
5
L
n
kAct
4
L
n
k
A
c
t
3
L
n
kA
c
t
2
L
n
k Act
1
L
n
kAc
t
Pwr
775
0
M
DA
-
aXP
6
-
1
0
G
B-
S
FP
+
1
-
4
0
G
B-
Q
S
FP
+
S
t
a
t
6
L
n
k
A
c
t
7
L
n
k
Ac
t
5
L
nk A
ct
4
L
n
k
A
c
t
3
L
n
k
A
ct
2
L
n
kAct
1
L
nk A
ct
Pwr
7
7
5
0
M
D
A
-
a
4
-
1
0
G
B-
S
FP
+
S
t
at
3
L
n
kAc
t
4
Ln
kA
ct
1
L
nk
A
c
t
2
Ln
k
A
ct
Pwr
7750 MDA-a
4
4
-1
G
B
-
C
S
F
P
/
S
F
P
St
at
Lnk/A
c
t
1
2
3
4
5
6
7
8
9
1
0
11
12
1
3
1
4
1
5
1
6
2
5
2
6
27
28
2
9
3
0
3
1
32
33
3
4
3
5
36
37
3
8
3
9
4
0
4
1
4
2
43
4
4
17
1
8
1
9
2
0
2
1
2
2
2
3
24
Pwr
7750
M
D
A
-a
2
0
-1
G
B
-TX
St
at
Lnk
1
A
c
t
2
Lnk
3
A
c
t
4
Lnk
5
A
c
t
6
Ln
k
7
A
c
t
8
Lnk
9
A
ct
1
0
Lnk
1
1
A
c
t
1
2
Lnk
1
3
A
c
t
14
Ln
k
15
Act
16
Lnk
1
7
A
c
t
1
8
Lnk
1
9
A
c
t
2
0
P
wr
7750 MDA-a
1
2
-1
G
B
-S
F
P
2
-1
0
G
B
-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
L
n
k
Ac
t
1
3
1
4
Ln
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
nk
Ac
t
4
L
n
k
A
c
t
1
L
n
k
A
c
t
2
L
nk
A
c
t
P
wr
7
7
5
0
SR-a
S
t
a
t
Sy
n
c
E/1
5
8
8
A
l
ar
m
s
1
P
P
S
A
CO/
LT
Cri
t
i
c
a
l
Lnk
D
TE
P
w
r
7
7
5
0
CP
M-a
S
t
at
Co
n
so
l
e
M
gmt O
E
S
B
I
TS
C
om
pact
Fl
ash
DCE
A
c
t
Lnk Ac
t
M
a
j
or
Minor
Sy
n
c
E/1
5
8
8
A
l
ar
m
s
1
P
P
S
A
C
O
/
LT
Cri
t
i
c
a
l
Lnk
D
TE
Pw
r
7
7
5
0
C
P
M-a
S
t
a
t
Co
n
so
l
e
M
gmt
O
E
S
B
I
TS
C
om
pact
Fl
ash
D
CE
A
c
t
Lnk
Ac
t
M
a
j
or
M
i
nor
P
wr
7
7
5
0
MD
A
-a
X
P
1
-1
0
0
G
B-CF
P
St
at
Lnk
A
ir
F
ilt
e
r
A
c
c
e
s
s
7750 SR
-
a8
2
4
24584
1
3