...
DS1 and DS2 have companion mobile equipment racks, named D50 and D51 respectively. The racks are nearly identical twins and each contain power supplies and readout electronics for detectors, a Digi, a 4-channel stepper motor controller and an EPICS IOC server. The mobile racks handle controls and feedback for detector power and diagnostics, some stepper motor control, and serve as an interface for detector data and timing input/output. A rack profile listing of the mobile racks' devices is shown below.
Mobile Rack Vertical Layout
...