Agilent Technologies auroraSonata, User Manual

Page: 129 / 336

Issue 2 - 07/00 4-19
Testing in Simulation Mode - Section 2
-1-
From the main Simulate menu, choose Layer 1
Test.
-2-
Highlight
2B1Q 40kHz Tone
and press
ENTER or the
Go
function key.
aurora
Sonata
begins sending the tone down the line and displays
the following screen:
To stop sending the test tone:
-3-
Press ENTER to select
STOP
.
Note
You must turn off this test before you can exit the menu.
CRC4 error checking
When CRC error checking is enabled in the
ISDN Setup
menu
(see Chapter 3 section 1), the CRC LED lights up red when a
CRC4 error is detected. The LED remains red for as long as
the error is present.
Note
For normal operation, CRC4 checking is enabled.
Returning RAI signals
When
Return RAI
is enabled in the
ISDN Setup
menu (see
Chapter 3 section 1), aurora
Sonata
returns Remote Alarm
Indicators (RAIs) to the remote end when it is not receiving a
proper signal.