Configured for direct dock SATA, the system operates with one module. The other compute module bay
must be filled with a blank module. The presence of compute modules is checked when the power is
turned on. The enclosure does not turn on if the compute module is not present. An alarm occurs when
incompatible configurations are detected.
The enclosure chassis is keyed to prevent compute modules from being inserted upside down.
Figure 20. AP-LS-1 module
Chapter 2. System overview 19