A Dialogic® MD1 Mini RJ-21 interface is a high-density, modular interface that provides up to 12 RJ-45 ports through a single cable. The following illustration shows the Dialogic® MD1 Mini RJ-21 interface:

Dialogic® MD1 Mini RJ-21 interfaces use the following pin assignments:
|
Trunks |
Transmit to network pin assignments |
Receive from network pin assignments |
||
|
Tip |
Ring |
Tip |
Ring | |
|
1 |
1 |
2 |
13 |
14 |
|
2 |
3 |
4 |
15 |
16 |
|
3 |
25 |
26 |
37 |
38 |
|
4 |
27 |
28 |
39 |
40 |
|
5 |
5 |
6 |
17 |
18 |
|
6 |
7 |
8 |
19 |
20 |
|
7 |
29 |
30 |
41 |
42 |
|
8 |
31 |
32 |
43 |
44 |
|
Not used |
9 and 10 21 and 22 11 and 12 23 and 24 33 and 34 45 and 46 35 and 36 47 and 48 49 and 50 |
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