Cabletron Systems CXRMIM, Installation Manual

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RMIM OVERVIEW
Installation Guide 1-3
1.3 RMIM OVERVIEW
Cabletron Systems Repeater Media Interface Modules provide connections to
10BASE-T, 10BASE-2, and FOIRL/10BASE-FL based Ethernet networks.
Figure 1-1 shows each module.
RMIMs repeat, retime, and regenerate each packet ensuring data integrity and
maximum data path distance. RMIMs also have a Fault Isolation feature that
automatically segments problem ports from the network. When the problem port
receives a good packet, the RMIM automatically reconnects the port to the
network.
Figure 1-1. Repeater Media Interface Modules
The RMIMs are designed, when managed by Cabletron’s Ethernet Management
Module for Ethernet (EMME or EMM-E6), to provide you with the capability to
add two additional Ethernet networks (B or C) to your existing Multi Media
Access Center
®
(MMAC) over the Flexible Network Bus (FNB). Sections 1.5,
1.6 and 1.7 of this chapter describe features of the MMAC, the EMME and the
EMM-E6.
CXRMIM
2
3
4
5
6
7
8
9
10
11
12
13
10BASE-2
ETHERNET
ETHERNET
B C
CLN
POK RCV
POK RCV POK RCV
1
SN
FORMIM-22
CLN
RCV LNK
8
TX
RX
RCV LNK
2
RCV LNK
7
TX
RX
1
RCV LNK
9
TX
RX
RCV LNK
3
RCV LNK
10
TX
RX
RCV LNK
4
RCV LNK
11
TX
RX
RCV LNK
5
RCV LNK
12
TX
RX
RCV LNK
6
FOIRL/10BASE-FL
ETHERNET
SN
ETHERNET
B C
RCV LNK
RCV POK
CLN
SN
TPRMIM-36
10BASE-T
ETHERNET
14
RCV POK
1
1
2
3
4
5
6
7
8
9
10
11
12
13
1 3
2
26
15
ETHERNET
B C
CLN
14
15
16
17
18
19
20
21
22
23
24
25
26
R
C
V L
N
K
R
C
V L
N
K
SN
TPRMIM-33
10BASE-T
ETHERNET
RCV POK
1
1
2
3
4
5
6
7
8
9
10
11
12
13
1 3
2
ETHERNET
B C
CLN
R
C
V L
N
K
TPRMIM-22
10BASE-T
ETHERNET
E
P
I
M
SN
2
X
3
X
4
X
LNK
RCV
CLN
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
ETHERNET
CLN
POK
6
7
8
9
10
B C
17
X
18
X
19
X
20
X
21
X
22
X
11
X
12
X
13
X
14
X
15
X
16
X
5
X
6
X
7
X
8
X
9
X
10
X
TPRMIM-20
10BASE-T
ETHERNET
B C
E
P
I
M
5
X
6
X
7
X
8
X
9
X
1
0
X
SN
2
X
3
X
4
X
LNK
RCV
1
2
3
4
5
ETHERNET
CLN
POK
6
7
8
9
10
LNK
RCV
LNK
RCV
LNK
RCV