Carrier Resource Mapping
- Updated2026-07-27
- 4 minute(s) read
The carrier module maps fixed channel resources to interface adapter module resources based on slot position.
Installing an interface adapter module maps the fixed channel resources of the carrier to the unique resources on the interface adapter module. This mapping links the front panel I/O ports to carrier resources such as GPIO, video, and power over coax. The architecture enables reusable applications across different interface adapter module combinations.
The following examples present hypothetical interface adapter modules and explain how this mapping occurs.
Note For mapping details about a specific
interface adapter module, refer to its user manual or to the NI Automotive Camera Module
Documentation.
Example 1: Interface Adapter Module with Two Dual Input Deserializers
Use this example with the following interface adapter modules:
- DS90UB988 FPD-Link deserializer
Note PoC implementation varies across interface adapter modules. For more information, refer to
the Sideband Protocols section.
In this example, the interface adapter module includes two dual input deserializers. The
figure labels the deserializers Deserializer
0 and Deserializer 1.
- Deserializer 0 uses the first two carrier channels according to the slot
position where it is installed.
- When the interface adapter module is installed in Slot 1, the channels correspond to carrier channel 0 and carrier channel 1.
- When the interface adapter module is installed in Slot 2, the channels correspond to carrier channel 4 and carrier channel 5.
- Deserializer 1 uses the last two carrier channels.
- When the interface adapter module is installed in Slot 1, the channels correspond to carrier channel 2 and carrier channel 3.
- When the interface adapter module is installed in Slot 2, the channels correspond to carrier channel 6 and carrier channel 7.
The interface adapter module in this example also includes two dual port front panel
connectors. The serial interfaces are inputs to the device. These signals are serial
inputs, or SI.
- The first two serial inputs map to Deserializer 0 on the interface adapter module.
- The last two serial inputs map to Deserializer 1 on the interface adapter module.
Note The serial inputs in this example
interface adapter module support Power over Coax (PoC). Unlike the video and GPIO channel
resources, the mapping of PoC channel resources is fixed. The slot in which the
interface adapter module is installed determines the mapping of PoC channel resources.
- When the interface adapter module is installed in Slot 1, the first serial input maps to carrier channel 0, the second serial input maps to carrier channel 1, and so on.
- When the interface adapter module is installed in Slot 2, the first serial input maps to carrier channel 4, the second serial input maps to carrier channel 5, and so on.
Note The interface adapter module might not use
all of the available channel resources. In this example, the dual deserializer might
only use one reference clock, even though two reference clocks are available.
Example 2: Interface Adapter Module with Two Dual Output Serializers
Use this example with the following interface adapter modules:
- DS90UB981 FPD-Link serializer
Note PoC implementation varies across interface adapter modules. For more information, refer to
the Sideband Protocols section.
In this example, the interface adapter module includes two dual output serializers. The
figure labels the deserializers Serializer
0 and Serializer 1.
- Serializer 0 uses the first two carrier channels according to the slot
position where it is installed.
- When the interface adapter module is installed in Slot 1, the channels correspond to carrier channel 0 and carrier channel 1.
- When the interface adapter module is installed in Slot 2, the channels correspond to carrier channel 4 and carrier channel 5.
- Serializer 1 uses the last two carrier channels.
- When the interface adapter module is installed in Slot 1, the channels correspond to carrier channel 2 and carrier channel 3.
- When the interface adapter module is installed in Slot 2, the channels correspond to carrier channel 6 and carrier channel 7.
The interface adapter module in this example also includes two dual port front panel
connectors. The serial interfaces are outputs from the device. These signals are
serial outputs, or SO.
- The first two serial outputs map to Serializer 0 on the interface adapter module.
- The second two serial outputs map to Serializer 1 on the interface adapter module.
Note The serial outputs in this example interface adapter module support Power over Coax (PoC).
Unlike the video and GPIO channel resources, the mapping of PoC channel resources is
fixed. The slot in which the interface adapter module is installed determines the mapping of
PoC channel resources.
- When the interface adapter module is installed in Slot 1, the first serial output maps to carrier channel 0, the second serial output maps to carrier channel 1, and so on.
- When the interface adapter module is installed in Slot 2, the first serial output maps to carrier channel 4, the second serial output maps to carrier channel 5, and so on.