Alcatel-Lucent 7750 SR-a4, Руководство по установке, Страница: 190 / 232

Removing and Replacing an Air Filter
190 7750 SR-a4 and SR-a8 Installation Guide
Figure 68: Removing the Air Filter Carrier (showing 7750 SR-a4)
To remove the air filter:
Step 1. Grasp the grips on the filter carrier (Key 1 in Figure 68 ).
Step 2. Gently pull the filter carrier out of the chassis and place it on an antistatic surface.
Step 3. Remove the filter pad from the filter carrier.
Step 4. Clean or dispose of the filter, as required. Go to Replacing the Air Filter on page
190 .
Replacing the Air Filter
The following procedure assumes that you have removed the filter carrier and filter media, as
described in
Removing the Air Filter . Figure 69 shows how to replace the air filter in the
7750 SR-a4 chassis. Table 97 describes the features. The same method applies to the air filter
in the 7750 SR-a8 chassis.
Table 96: Air Filter Removal Features
Key Description
1 Grips, used to pull out the metal filter carrier. The metal carrier is held in place
in the chassis by magnets.
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
Pwr
Stat
Pwr
7
7
5
0
M
D
A
-a
X
P
1
-1
0
0
GB
-CF
P
Stat
Lnk
Pwr
7
7
5
0
M
DA
-a
20-
1GB-
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
nc
E/1
58
8
Alarms
1PPS
ACO/LT
Critical
Lnk DTE
Pwr
7
7
5
0
C
P
M-a
Stat
Console M
g
m
tO
ES
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
FP
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
A
c
c
es
s
77
5
0
S
R
-a
4
245 8 7
1
1