Cabletron Systems 9E132-15, 9E133-36, 9E138-12, 9E138-36b , Introduction, 1-3

1-3
Introduction
Figure 1-1. The Ethernet MicroLan Switch Modules
SMB CPU
FNB
ETHERNET
9E132-15
1
1
23
2
3
4
5
E
T
H
E
R
N
E
T
1
2X
3X
4X
5X
E
T
H
E
R
N
E
T
2
2X
3X
4X
5X
E
T
H
E
R
N
E
T
3
2X
3X
4X
5X
1
1
23
2
3
4
5
6
7
8
9
10
11
12
1
12
E
T
H
E
R
N
E
T
1
1
12
E
T
H
E
R
N
E
T
2
1
12
E
T
H
E
R
N
E
T
3
SMB CPU
FNB
ETHERNET
9E133-36
SMB CPU
FNB
ETHERNET
9E138-12
1
1
23
2
1
2
1
2
ENET 1
3
4
3
4
3
4
ENET 2
ENET 3
1
2
4
3
RX
TX
RX
TX
RX
TX
RX
TX
ETHERNET 1
1
2
4
3
RX
TX
RX
TX
RX
TX
RX
TX
ETHERNET 2
1
2
4
3
RX
TX
RX
TX
RX
TX
RX
TX
ETHERNET 3
ETHERNET 1
1
2
4
3
RX
TX
RX
TX
RX
TX
RX
TX
ETHERNET 2
1
2
4
3
RX
TX
RX
TX
RX
TX
RX
TX
ETHERNET 3
1
2
4
3
RX
TX
RX
TX
RX
TX
RX
TX
5
6
8
7
RX
TX
RX
TX
RX
TX
RX
TX
9
10
12
11
RX
TX
RX
TX
RX
TX
RX
TX
5
6
8
7
RX
TX
RX
TX
RX
TX
RX
TX
9
10
12
11
RX
TX
RX
TX
RX
TX
RX
TX
5
6
8
7
RX
TX
RX
TX
RX
TX
RX
TX
9
10
12
11
RX
TX
RX
TX
RX
TX
RX
TX
123
5
6
ENET 1
7
8
5
6
ENET 2
7
8
5
6
ENET 3
7
8
9
10
ENET 1
11
12
9
10
ENET 2
11
12
9
10
ENET 3
11
12
1
2
ENET 1
3
4
1
2
ENET 2
3
4
1
2
ENET 3
3
4
SMB CPU
FNB
ETHERNET
9E138-36