LaserPower version I
The interface is for attaching the Dualus cable, which is necessary if you want to use the LaserPower system in the duel version. This interface is only available on LaserPower rifles of version I (light wooden stock).
LaserPower II professional set
The biathlon target can be connected to a PC for competition purposes via the RS-485 PC interface cable. Up to 99 targets can be connected via this PC interface.