The elements of the hardware are:
- The SctModule? is the active hardware inside ATLAS, together with the front end ASICs
- The CrateController? is a single board computer one per crate,
- The readout driver or ROD which controls up to 48 SctModule?s
- The back-of-crate module BOC which is the optical interface between the modules and the ROD
- The TIM module, can initiate simultaneous triggers over many RODs.
- SctHv? cards provide the bias voltage for the SctModule?s
- SctLv? cards provide the chip bias for the front-end ASICs on the SctModule?s