18
10-Port 100BASE-FX and 20-Port 10/100BASE-TX Fast Ethernet Layer 2 Switching Modules Quick Start Guide
Figure 3
Installing a FEN Switching Module into a 16-Slot Chassis
1
2
3
4
5
6
7
8
12
13
16
9
10
11
14
15
3CB9FG24
PR
I
M
O
D
ST
AT
SE
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3CB9FG24
PR
I
M
O
D
ST
AT
SE
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3CB9FG24
PR
I
M
O
D
ST
AT
SE
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3CB9FG24
PR
I
M
O
D
ST
AT
SE
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3CB9FG24
PR
I
M
O
D
ST
AT
SE
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3CB9FG24
PR
I
M
O
D
ST
AT
SE
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3CB9LF20R
1
M
O
D
ST
AT
2
3
4
5
6
7
14
1X
2X
3X
4X
5X
6X
7X
8X
9X
10
X
11
X
12
X
13
X
14
X
15
X
16
X
17
X
18
X
19
X
20
X
3CB9LF20R
1
M
O
D
ST
AT
2
3
4
5
6
7
14
1X
2X
3X
4X
5X
6X
7X
8X
9X
10
X
11
X
12
X
13
X
14
X
15
X
16
X
17
X
18
X
19
X
20
X
R
CoreBuilder
®
9000
Spring-loaded
screw
20-port
Fast Ethernet
Switching
Module
Spring-loaded
screw
