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Simulation on a Primary Rate link
On a Primary Rate link you can use aurora
Terminal Equipment (a TE) or a Network Termination (NT).
Terminating the link
When using aurora
you must set its resistor to 75Ω or 120Ω to suit the equipment
to which you are connecting. For instructions, see Terminating
a Primary Rate link in Chapter 3 section 1.
Emulating a TE on a PRI link
You would use aurora
Emulating an NT on a PRI link
When you emulate an NT at the S interface you are using
aurora
Sonata
When emulating an NT, aurora
TE in the same way as an exchange would do.
Issue 2 - 07/00
Testing in Simulation Mode - Section 1
for simulation on a Primary Rate link
Sonata
to emulate a TE on a PRI link:
Sonata
•
to determine whether a TE is faulty
•
to check the line reliability (e.g. using BERT)
•
during line provisioning or maintenance, to test
the line configuration, line quality and the
availability of channels and ISDN services
•
to check any subscribed supplementary services
to replace the NT and the ISDN. You can use this:
•
when installing a TE—you can make test calls
to aurora
instead of the ISDN
Sonata
•
during line installation
•
when troubleshooting a TE—to check if there
is an fault with the ISDN.
Sonata
to emulate
Sonata
sends ringing tones to the
4-7
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