Dialogic Diva Installation Manual page 30

Installation
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If the Dialogic Diva
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The Dialogic Diva System Release software enables you to configure Diva
PRI Media Boards as network termination (NT). This means your Diva Media
Board can serve as an NT for PBXs that act as terminal equipment and
therefore requires an NT to provide a clocking signal. For example, the Diva
Media Board can act as an NT when coupling PBXs with the Q.SIG protocol.
When connecting the Diva Media Board to a PBX that acts as TE, configure
the Diva Media Board as an NT. Wire it to the PBX as shown in the diagram
on page 31 and apply the appropriate assignment to the PBX connectors.
If the ISDN PRI, E1, or T1 line uses open-ended wire connections:
In some cases, you are required to connect to your network termination using
the open-ended connectors. The transmission (TX) leads and the receiving
(RX) leads are identified by color; transmission leads are blue and white-blue,
receiving leads are orange and white-orange.
Use an RJ45 to open ends cable:
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Dialogic Diva PRI
Media Board
Pin 1
Pin 2
Pin 4
Pin 5
shielded plug
Make sure to connect the transmission leads of your Diva PRI Media Board to
the receiving connectors of the network termination and the receiving leads
of your Diva PRI Media Board to the transmission connectors of the network
termination.
Note: If the Diva Media Board is not properly connected to the ISDN PRI, E1,
or T1 line, a layer 1 warning light appears on the NT, the Diva Media Board,
the external CSU, and at the switching center of the network provider. The
network provider might then deactivate the line. If this occurs, you must
contact your network provider to reactivate your line.
page 30
PRI Media Board in NT mode is connected to a PBX:
Signals
Receive + (RX +)
Receive - (RX -)
Transmit + (TX +)
Transmit - (TX -)
overall shielded
Open Ends
white-orange
orange
white-blue
blue
shield