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Fanning out the
Telco Connector
AUI Port
You can fan out the eight ports of the Telco connector to eight 8-pin RJ-45
jacks using a patch panel (described in "Patch Panel") or to eight 6-pin RJ-12
jacks using an octopus (hydra) cable (described in "Octopus (Hydra) Cable").
The resulting pin numbers are shown in Table A-4. For signal names and
directions, refer to Table A-2 and Table A-3.
Table A-4 Telco-to-RJ-12 Pin Assignments
RJ-45 Pin,
Port
Pin
Patch Panel
0
1
4
0
2
6
0
3
7
1
4
4
1
5
6
1
6
7
2
7
4
2
8
6
2
9
7
3
10
4
3
11
6
3
12
7
4
13
4
4
14
6
4
15
7
5
16
4
5
17
6
5
18
7
6
19
4
6
20
6
6
21
7
7
22
4
7
23
6
7
24
7
None 25
Not used
Figure A-2 shows pin numbers for the AUI port on the single-port AUI
module. Table A-5 lists pin assignments for the AUI port. This connector is
an industry standard derived from IEEE Standard 802.3.
RJ-12 Pin,
RJ-45 Pin,
Hydra Cable
Pin
Patch Panel
3
26
5
5
27
3
6
28
2
3
29
5
5
30
3
6
31
2
3
32
5
5
33
3
6
34
2
3
35
5
5
36
3
6
37
2
3
38
5
5
39
3
6
40
2
3
41
5
5
42
3
6
43
2
3
44
5
5
45
3
6
46
2
3
47
5
5
48
3
6
49
2
Not used
50
Not used
AUI Port
A-5
RJ-12 Pin,
Hydra Cable
4
2
1
4
2
1
4
2
1
4
2
1
4
2
1
4
2
1
4
2
1
4
2
1
Not used
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