N1002L31A 800G Solution Bundle
The N1002L31A 800G solution bundle provides the required FlexOTO hardware for 53 GBe DUTs with a Keysight N7731C optical switch. The following table lists the contents of the bundle.
Item | Quantity |
---|---|
N1002A-S00 Controller | 1 |
N1002014A FlexOTO license (1 year subscription) | 1 |
N1010200A FlexDCA MFG package (1 year subscription) | 1 |
N7731C optical switch (two internal 1 by 4 switches) | 1 |
N1092B with 40A, PLK, IRC, LOJ, JS1, and CDR options | 1 |
N1027A-AFC, SMF FC/APC FC/PC optical pathcord | 2 |
N1002L31A-DC1 | 1 |
Notice in the following example, you don't have to manage optical switch signal routing or the N1092B acquisition or analysis timing. FlexOTO automatically determines and implements the fastest algorithm for the test setup.
Example 1. Setup with one DUT fixture
In this example, an 800 GBd DUT is tested. The DUT has two groups of 4-lanes each at 53 GBd. Each 4-lane group has its own PLL. Notice that the switch connections of the middle four lanes are swapped. This ensures that each PLL group has at least one lane that will be connected the the N7731C's internal switch 1. This is required because switch 1 is connected to the N1092B's Channel A. Channel A is the only N1092B channel that included clock recovery. This example also shows how the N7731C's two internal switches can be cascaded.

Example 2. Setup with two WDM DUTs
two 8-lane PLL groups
In this example, two 800 GBd WDM DUTs are tested. Each DUT has four multiplexed lanes at 53 GBd which are output to a DEMUX. As shown in the example above, the switch connections of the middle four lane are swapped. This ensures that each PLL group has at least one lane that will be connected the the N7731C's internal switch 1. This is required because switch 1 is connected to the N1092B's Channel A. Channel A is the only N1092B channel that included clock recovery.

Example 3. Setup with four WDM DUTs
This final example shows four 4-lane WDM DUTs are sent via the N7731A's internal switch 1 to a shared DEMUX. The DEMUX's output lanes are connected as inputs to switch 2.
