Paragon-X Getting Started Guide
Page 19 of 28
Paragon-X Constant Time Error (cTE) measurement
This section details how to perform a Time Error test. This requires Paragon-X to have Opt. 250
(Master/Slave Emulation End to End) or Opt. 252 (Master/Slave Emulation Peer to Peer) fitted.
1.
In Operating Mode, select 1588v2 and tick the Enable Master/Slave Emulation box.
2.
On the Setup Interface screen, configure the ethernet interface to match the device under test
e.g. 1GbE optical*.
3.
Click the Master/Slave Emulation button on the main GUI then configure for the device under
test e.g. select Boundary Clock in the Test Configuration dropdown menu. Select a suitable
profile from the dropdown menu above the test set-up graphic, or use the Configure button to
access manual settings. Note that the displayed image will change depending on which type of
test has been selected and so provides a convenient checkpoint for device connectivity
requirement.
4.
Press the Start button in the Measurement section. This will start master-slave emulation, set up
the appropriate capture filters, and start a capture.
Note: when configured to use 100M line rate, instead of using the Start button, first enable the
required PTP filters by using Capture > Flow Filter menu option then start MSE by using the
green Slave button before starting capture. This allows Paragon-X to adjust for clock-
cycle offsets inherent at this rate.
5.
Allow to run for 30s (or longer if desired).
6.
Stop the capture by clicking the red Stop Capture button, then stop master-slave emulation by
clicking the red Slave button at the bottom of the master-slave screen.
