Xtramus APMPT-4 V2.4 - Manual (Page 52)

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5.1. Test Tasks - Layer 1: DUT-OSC
APMPT-
4 will start examining Crystal Oscillator‟s frequency of the DUT and see if it‟s either faster or
slower than standard speed in ppm scale.
5.1.1. Setup
 Test Port: Select the module card and the port that will be used for DUT-OSC test. The Test Port
available are showed as IDs in the format of (X, Y, Z) while X is the number of the chassis (which is
displayed on NuStreams-2000i/600i), Y is the slot number where this model card is installed, and Z is
the available port number located on the model card.

Media Type: Click the Media Type scroll-
down menu to choose DUT‟s link speed.
 Test Time: You can set the testing time for the Layer 1 DUT-OSC task.
5.1.2. Criteria
 OSC PPM Min/Max: Please input the minimum/maximum frequencies (ppm) which will serve as
DUT- OSC Task‟s testing criteria.
5.1.3. Misc

Title of task name: You can assign a name to this task for identification.

Apply: Apply the changes you made.