Most other LiteLab systems have large zoners, dimmers and drivers housed in wall mounted panels. This system is self contained so all of the other parts are housed in an additional rack mount chassis. This is more compact and seems to be a rare style from LiteLab. A 26 conductor ribbon cable connects the 2 units together.
Operation is pretty simple for this unit. It can run in auto mode or react to music if an audio source is connected to the rear of the unit. 3 sliders / faders control the main function. They are for Sensitivity (for the audio), Rate and Speed. The other small switches switch on or bypass the Zoner, activate or bypass the audio, pause (Stops the chasing at a step), Direction (of chase), mode (for types of chasing) and the main power switch.
This classic system was made here in the US.