Alcatel-Lucent 7750 SR-a4, Руководство по установке, Страница: 109 / 232

Installing Components
7750 SR-a4 and SR-a8 Installation Guide 109
Installing a Fan Tray
The fan tray is chassis specific. The 7750 SR-a4 has four axial fans. The 7750 SR-a8 chassis
requires a larger fan tray, which has six axial fans. The fan tray is mandatory, and must be
installed in the vertical slot on the left side of the chassis.
Figure 35 shows how to install the SR-a4 fan tray in the 7750 SR-a4 chassis. Table 47
describes the features. The same installation method applies to the SR-a8 fan tray in the
7750 SR-a8 chassis.
Figure 35: Installing the Fan Tray (7750 SR-a4)
Required tools:
• #2 Phillips or flat blade torque driver
To install the fan tray:
Step 1. Align the fan tray with the guides in fan tray slot (Key 1 in Figure 35 ).
7750
S R-a4 Fan Tray
Pwr
S tat
S lot Layout
1/1 XP
1/2
1/3
1/4
1
CPM A
CPM B
7750 SR-a4
S ervice Router
7750
S R-a4 Fan Tray
Pwr
S tat
S lot Layout
1/1 XP
1/2
1/3
1/4
1
CPM A
CPM B
Pwr
Stat
Pwr
7
7
5
0
MD
A
-a
X
P
1
-1
0
0
G
B
-C
F
P
Stat
Lnk
Pwr
7
7
5
0
M
DA
-a
20
-1
G
B-
TX
Stat
Lnk
1
Act
2
Lnk
3 Act
4
Lnk
5
Act
6 Lnk
7
Act
8 Lnk
9 Act
10
Lnk
11
Act
12
Lnk
13
Act
14 Lnk
15 Act
16
Lnk
17
Act
18 Lnk
19
Act
20
Sy
n
cE/1
58
8
Alarms
1PPS
ACO/LT
Critical
Lnk DTE
Pwr
7
7
5
0
C
P
M
-a
Stat
Console M
gmt
O
E
S
B
ITS
Compact Flash
DCE Act Lnk
Act
Major
Minor
Sy
n
cE/1
58
8
Alarms
1PPS
ACO/LT
Critical
Lnk DTE
Pwr
7
7
5
0
C
P
M
-a
Stat
Console M
gmt
O
E
S
B
ITS
Compact Flash
DCE Act Lnk
Act
Major
Minor
Pwr
7750
SR
-a
Stat
Pwr
Stat
77
50
M
D
A
-a
XP
10
-1
0G
B-
S
FP
+
10
Lnk
Act
9
Lnk Act
8
Lnk Act
7
Lnk Act
6
Lnk Act
5
Lnk Act
4
Lnk Act
3
Lnk Act
2
Lnk Act
1
Lnk Act
Pwr
7
7
5
0
M
DA
-a
44
-1
G
B-
CS
FP
/S
F
P
Stat
Lnk/Act
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
25 26 27 28
29 30 31 32
33 34 35 36
37 38 39 40
41 42 43 44
17 18 19 20
21 22 23 24
A
ir
F
ilt
er
Ac
c
es
s
7
75
0
S
R
-a4
245 8 6
Pwr
7
7
5
0
CP
M
-a
Stat
7750
S R-a4 Fan Tray
Pwr
S tat
S lot Layout
1/1 XP
1/2
1/3
1/4
1
CPM A
CPM B
2
1
2
Table 47: Fan Tray Installation Features
Key Description
1 Chassis slot guide for fan tray
2 Captive screws