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Establishing network connections TX 4000 PCI SS7 Network Interface Board Installation Manual
Dual T1/E1 120 ohm adapter cable
The following illustration shows a dual T1/E1 120 ohm trunk adapter cable:
Dialogic® MD1 RJ-45
Length: 4 “
RJ-48C
B
A
The following illustration shows the pinouts of the RJ-48C connectors on the trunk
adapter cable:
Pin 8: Optional shield, not used
Pin 7: Optional shield, not used
Pin 6: No connection
Pin 5: T1 - Transmit to network
Pin 4: R1 - Transmit to network
Pin 3: No connection
Pin 2: T - Receive from network
Pin 1: R - Receive from network
Pin 1
Pin 8
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 on page 34 for more information.
The following illustration shows the pinouts of the 10/100Base-T Ethernet RJ-45
interfaces:
LINK/ACT LED
100 LED
Pin 1
Pin 8
Pin 1: T - Transmit to network
Pin 2: R - Transmit to network
Pin 3: T1 - Receive from network
Pin 4: Ground
Pin 5: Ground
Pin 6: R1 - Receive from network
Pin 7: Ground
Pin 8: Ground
30 Dialogic Corporation