Wavetek ANT-20 Operating Manual page 106

Broadband Analyzer/Generator
Time sequence
After the measurement is started (Application Manager) the following automatic sequence
begins. The sequence is split into 4 phases:
Phase
Signaling
traffic
SSCOP
connection
Test channel
Test traffic
Results display
Signaling
conditions
NCS
QoS parameter
1) VI "ATM Test Results"
2) Not Connected Seconds
Fig. TB-7
Phases
1. The measurement is started:
The layer 2 signaling (SSCOP) connection is set up.
2. The test channel is switched.
3. Test traffic is generated if it has been enabled.
QoS parameters are measured
4. The measurement is stopped. The test channel is cleared down; if required, the QoS
parameters are recorded in the log file.
Fig. TB-8
TB-12
1
disc. connecting
disconnected
1
disconnected
2
Time sequence at ATM traffic generation, "Calling" mode (only one channel)
Displaying of results (VI "ATM Test Results")
Gate time
2 3
connected
connecting connected
connecting
connected
"Quality of Service"
parameters
Signaling
informations
ANT-20/ANT-20E
t
4
disconnected
disconnected
disconnected
Technical Background