AE-503DX1 provides a programmable pace that automatically paces the "GOAL" display, a RUN/HOLD switch to hold the pace during breaks or down periods, and separate RESET buttons for both the GOAL and ACTUAL displays. Count up and count down push buttons or signals are connected to the AE-503DX1. It then sends all data to the AEXX-503C displays at distances up to 2000 feet away. The RS485 I/O port allows it to be connected to a PC for data acquisition.