Which of the following uses a standard RJ-45 modular connector for twisted pair cable?

The correct choice is the option that mentions HDBaseT, as this technology specifically utilizes standard RJ-45 modular connectors for twisted pair cabling. HDBaseT allows for the transmission of high-definition video, audio, control signals, and Ethernet over a single twisted-pair cable, making it a versatile solution for audio-visual setups. The use of RJ-45 connectors is integral to HDBaseT as it ensures compatibility with standard networking components, enabling easy integration into existing infrastructure.

In contrast, the other options do not typically employ RJ-45 connectors. For instance, the AV Layer might refer to a conceptual layer in audio-visual systems rather than a specific cabling technology, while STP (Shielded Twisted Pair) is a type of cabling that could use RJ-45 connectors but is not specifically a technology that defines a use case like HDBaseT does. Lastly, commissioning generally refers to the process of ensuring a system operates correctly but does not involve specific connector types or cabling technologies. Thus, HDBaseT stands out as the only choice that directly aligns with the use of RJ-45 connectors in the context of twisted pair cables.