The line on the BOM
The Omron R88A-CAWA010B-DE is a 10 m servo cable from the R88A CAW family, classed under Servo Cables & Accessories and sitting in the Motors & Motor Controls tree for panel-side wiring between an Omron servo drive and motor.
Where it plugs in
In an Omron motion system this is the flex-rated power/feedback cable that bridges the servo amplifier and the motor, so the BOM line is normally written against the drive and motor pair rather than specified standalone. Routing should respect the minimum bend radius Omron publishes for the CAW family; that figure is not on this listing, so defer to the Omron manual before the pull if the run is tight against a cable chain.