Solution
The number of fiber optic cables connected to your device must not exceed the limits noted in the table below:
| Device (Hardware Revision) | Maximum Number of Fiber Optic Cables |
|---|
| PCIe-839x or PXIe-8394/8398 (rev H or newer) | 2 total |
| PXIe-8394/8398 (rev G or older) | 1 total |
| PXIe-8399 (rev H or newer) | 2 per bank, 4 total |
| PXIe-8399 (rev G or older) | 1 per bank, 2 total |
However, the hardware doesn’t allow you to stack cables as you can with copper cables to create an x8 or x16 connection. The modules will always establish a x4 link per system.