Dialogic Diva Installation Manual page 25

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Connecting Dialogic Diva
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The Dialogic Diva System Release software enables you to configure Diva
BRI Media Boards as network termination (NT). This means your Diva Media
Board can serve as an NT for PBXs, for example, when coupling PBXs with the
Q.SIG protocol, and it can be used for back-to-back operation.
When connecting the Diva Media Board to a PBX that acts as terminal
equipment and therefore requires an NT to provide a clocking signal, configure
the Diva board as an NT. Wire the Diva board to the PBX as shown in the
diagram below by applying the appropriate assignment to the PBX connectors.
Use the required termination resistors.
When using two Diva Media Boards in back-to-back operation, configure one
Diva board as an NT and the other one as terminal equipment (TE). Connect
the boards using a crossover cable. The cable wiring must correspond to the
diagram below and the cable must have the required termination resistors.
Pole (contact) assignments for 8-pole connections (plugs and jacks):
TE Side
Pins on RJ45 Wire
1 not used
2 not used
3 2a
4 1a
5 1b
6 2b
7 not used
8 not used
Note: Looking at the RJ45 connector with the exposed connector pins facing
you, the pins are numbered from 1 to 8 from left to right (as shown below).
Dialogic® Diva® Media Board Installation Guide
®
BRI Media Boards in NT mode:
Signals Wiring
TX +
RX +
Resistors
RX -
TX -
Termination resistors
100 Ohm, 5%
NT Side
Wire Signals
1a TX +
2a RX +
2b RX -
1b TX -
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