The rear I/O transition board associated with the TX 4000C board has a T1/E1 trunk connector and up to two Ethernet interfaces on the end bracket:
The TX 4000C board uses a Dialogic® MD1 RJ-21 interface to connect the board to the network. The following table provides the Dialogic® MD1 RJ-21 interface pin assignments:
Trunk |
Transmit to network pin assignments |
Receive from network pin assignments |
||
Ring |
Tip |
Ring |
Tip | |
1 and 9 |
1 |
26 |
2 |
27 |
2 and 10 |
3 |
28 |
4 |
29 |
3 and 11 |
5 |
30 |
6 |
31 |
4 and 12 |
7 |
32 |
8 |
33 |
5 and 13 |
9 |
34 |
10 |
35 |
6 and 14 |
11 |
36 |
12 |
37 |
7 and 15 |
13 |
38 |
14 |
39 |
8 and 16 |
15 |
40 |
16 |
41 |
Not used |
17 through 25 42 through 50 |
For more information about trunk connections, refer to the Dialogic® NaturalAccess™ Signaling Software Configuration Manual.
The TX 4000C board has two 10/100Base-T Ethernet interfaces that are located on the rear I/O transition board. These interfaces provide Ethernet connections that support auto-negotiation for 100Base-T full duplex/half duplex and 10Base-T full duplex/half duplex transmission. They also provide a high-speed interface for connecting a TX 4000C board to either its redundant mate board or to a network of other SIGTRAN devices. Refer to Connecting TX boards for redundancy for more information.
The following illustration shows the pinouts of the RJ-45 Ethernet interface: