Connectors and cables

The TX 4000 board has two Dialogic® MD1 RJ-45 T1/E1 trunk interfaces and two Ethernet connectors. The following illustration shows these connectors on the TX 4000 end bracket:

Dialogic® MD1 RJ-45 interface

The TX 4000 provides an Dialogic® MD1 RJ-45 interface to connect to a T1 or E1 network. The following illustration shows the Dialogic® MD1 RJ-45 pinouts:

To access Trunk 1, Trunk 2, or both Trunks 1 and 2, connect a shielded T1 or E1 RJ-45 cable to one or both 8-pin modular jacks on the board.

To access all four trunks, use two dual T1/E1 120 ohm trunk adapter cables. Each trunk adapter cable separates the 8-pin modular jack on the board into two RJ-48C interfaces.

Dual T1/E1 120 ohm adapter cable

The following illustration shows a dual T1/E1 120 ohm trunk adapter cable:

 

The following illustration shows the pinouts of the RJ-48C connectors on the trunk adapter cable:

For more information about the trunk connections, refer to the Dialogic® NaturalAccess™ Signaling Software Configuration Manual.

Note: The TX 4000 board is configured as a T1/E1 120 ohm board. To connect the TX 4000 board to a 75-ohm E1 trunk, use a balun. A balun is a transformer that converts the impedance from 120 ohm to 75 ohm. No other configuration changes are required. For more information, contact a Dialogic Services and Support representative.

Ethernet interfaces

The TX 4000 board has two 10/100Base-T Ethernet interfaces. These interfaces provide Ethernet connections that support auto-negotiation for 100Base-T full duplex/half duplex and 10Base-T full duplex/half duplex transmission. Each Ethernet interface can be manually configured if you are not using auto-negotiation.

The Ethernet interfaces provide a high-speed interface for connecting a TX 4000 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 10/100Base-T Ethernet RJ-45 interfaces: