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Issue 2 - 07/00 4-5
Testing in Simulation Mode - Section 1
For instructions on connecting/disconnecting the resistor, see
Terminating the S bus in Chapter 3 section 1.
Emulating a TE on the S interface
You would use aurora
Sonata
to emulate a TE on the S interface:
• 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 services
• to check any subscribed supplementary services
2
Note
You must set up the 100
Ω
termination resistor as appropriate.
Emulating an NT on the S interface
When you emulate an NT at the S interface you are using
aurora
Sonata
to replace the NT and the ISDN. You can use this:
• when installing a TE—you can make test calls
to aurora
Sonata
instead of the ISDN
• during line installation, to check the operation
of S bus connections
• when troubleshooting a TE—to check if there
is an fault with the ISDN at the S interface.
When emulating an NT, aurora
Sonata
sends ringing tones to the
TE in the same way as an exchange would do.
2
Notes:
• You must use an 100
Ω
termination resistor when
emulating an NT on the S interface.
• NT powering can be supplied by an optional ‘Phantom
Power Feed Box’ (PPFB) capable of supplying power to
one TE on an S-bus or U interface. For more information
on the PPFB, contact your Agilent Technologies
representative.