Agilent Technologies AuroraPresto, User Manual

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Aurora Presto
—User Guide
4-16 481801
-4-
Set up the
IP Frame
to
Bridged Mode
see Setting up
IP Framing on page 3-21 .
Simulating an ATU-R to DSLAM (ATU-C)
Aurora Presto
(simulating an ATU-R) can be used to test the
ADSL line by training and synchronising to the DSLAM.
Aurora Presto
’s ADSL layer tracer option can be used to
trace failed synchronisation and help identify faults.
Simulating DSLAM (ATU-C) to Modem (ATU-R) or
DTE
Aurora Presto
(simulating an ATU-C) can be used to test the
ADSL line by training and synchronising to the ATU-R.
For key see diagram on page 4-10 .
Aurora Presto
(simulating an ATU-C) enables you to specify
upstream and downstream physical line parameters
including bit rates (minimum and maximum) and noise
margins (minimum, target and maximum).
See Setting up
the Modem Type for DSL Layer Tests on page 4-33 .
ATM
ADSL Line
(copper pair)
Ethernet or
ATMF 25.6
Aurora Presto
replacing ADSL
Remote Modem
(ATU-R)
DTE
DSLAM
CO
ATU-C
ATU-C
ATU-C
ADSL Line
(copper pair)
Aurora Presto replacing
ADSL central office
modem (ATU-C)
Ethernet or
ATMF 25.6
Testing the complete subscriber line
PC DTE
Modem
(ATU-R)
481801-7.book Page 16 Thursday, May 23, 2002 10:46 AM