This is a CEC enclosure RIO card copper cable at both ends.
The 10 value indicates the cable is 10 meters long.
About this task
HSL2_10 is a symbolic FRU that displays the location code
for one end of the RIO cable FRU in the FRU list of a high speed link
(HSL) failure. The FRU location code at the HSL2_10 entry should
begin with
U789D.001.sssssss-P1-.
Follow the instructions in HSL2_xx to repair the RIO cable.
This
ends the procedure.