Intermediate Host Integration Permissive Changes under FCC Regulations
Intermediate host integration requires Class II Permissive Changes when antenna gain, trace layout, or RF exposure separation distances change from original grant conditions.
Carrier Board
Meaning
Electronic platforms providing power distribution and signal routing form the physical base for system on modules or other high density compute engines. A carrier board bridges the standardized pinout of a processing module with the specific connectors required for a particular application like industrial automation or medical imaging. It contains the power supply circuitry and physical ports such as ethernet and usb while the module handles the central processing tasks.
The board also acts as the primary mechanical interface for the entire system assembly.
Connector Interface
Signal integrity management is the primary function of the traces within the multi layer stack. High speed differential pairs on the carrier board must maintain consistent impedance to ensure the reliability of data transfer.
Thermal Dissipation
Cooling strategies incorporate metal planes and thermal vias to manage the heat produced by the high speed processor. The carrier board defines the arrangement of screw holes and the spatial relationship between heat sinks and external ports. This physical layout ensures that the final product fits within its intended chassis or weather proof housing.
Custom Design
Specific application requirements dictate the final selection of connectors and board dimensions. A carrier board often includes slots for cellular modems or storage drives to enhance the capabilities of the main processor. These additions are verified during the system integration phase to ensure power budgets are not exceeded.