Spirent XFP-4001A Testcenter Module Card 134419283520 but the unit only works

but the unit only works on the timer side

Manufacturer AVX Model Number 1210YD226MAT2A SKU 19-44553 Ref 23-61170

Manufacturer GOM Optical Measuring Techniques SKU 19-52335 Ref 23-97336

Manufacturer Furukawa Electric Co Ltd Model Number F199 M12 SKU 19-55282 Ref 23-78494

Spirent XFP-4001A Testcenter Module Card 134419283520 but the unit only worksCondition Used Description This Module Card has been pulled from a functional environment. The unit has wear from previous use including scuffs and scratches. Includes only the Module Card, No accessories. Photos are of the actual unit for sale. Inventory is on hand and ready to ship. Please feel free to message us any questions you may have. Thank you for checking out our listing. Specifics Manufacturer Spirent Model Number XFP 4001A SKU 19 41593 Ref