1-3
Introduction
Figure 1-1. The Concentrator Modules
M
1
M
2
M
3
M
4
M
5
M
6
M
7
M
8
1
5
6
4
8
23
7
F
D
D
I
SMB
CPU
FNB
9F120-08
FDDI
SMB
CPU
FNB
9F122-12
FDDI
1
4
2
3
5
6
8
7
M
1
M
2
M
3
M
4
M
5
M
6
M
7
M
8
1
5
6
4
8
23
7
F
D
D
I
SMB
CPU
FNB
9F125-08
FDDI
