The TPL specifies products supported by the "targeting" host, defining what it needs to support, including the output power, transfer speeds, supported protocols, what is control cable and device classes. Products following the USB OTG and Embedded Host Supplement to the USB 3.0 specification are also required to follow the USB 2.0 supplement in order to maintain backwards compatibility. USB 3.0 introduced a backwards compatible SuperSpeed extension of the micro-AB receptacle and micro-A and micro-B plugs. Role Swap Protocol (RSP): RSP achieves the same purpose as HNP (i.e., role swapping) by extending standard mechanisms provided by the USB 3.0 specification. The new OTG protocols cannot pass through a standard USB hub since they are based on electrical signaling via a dedicated wire. In infrastructure or access point mode, all traffic has to pass through an Access Point (AP). Multiple access on CAN bus is achieved by the electrical logic of the system supporting just two states that are conceptually analogous to a ‘wired AND’ network.

The absence of a complete physical layer specification (mechanical in addition to electrical) freed the CAN bus specification from the constraints and complexity of physical implementation. Attach Detection Protocol (ADP): Allows an OTG device, embedded host or USB device to determine attachment status in the absence of power on the USB bus, enabling both insertion-based behavior and the capability to display attachment status. It can accept either a mini-A plug or a mini-B plug, while mini-A adapters allows connection to standard-A USB cables coming from peripherals. USB OTG does not preclude using a USB hub, but it describes host-peripheral role swapping only for the case of a one-to-one connection where two OTG devices are directly connected. The code provides rules for sizing electrical boxes for the number of wires and wiring devices in the box. Jobs' earlier question to Sidhu had already sparked a number of ideas. You can then scroll through the list of channels using the arrow keys or enter a specific channel number using the numeric keypad. The standard OTG cable has a mini-A plug on one end and a mini-B plug on the other end (it can not have two plugs of the same type).

Pure mini-A receptacles also exist, used where a compact host port is needed, but OTG is not supported. The type of plug inserted is detected by the state of the ID pin (the mini-A plug's ID pin is grounded, while the mini-B plug's is floating). A device with a micro-A plug inserted becomes an OTG A-device, and a device with a micro-B plug inserted becomes a B-device. The device connected to the "A" end of the cable at start-up, known as the "A-device", acts as the default host, while the "B" end acts as the default peripheral, known as the "B-device". An OTG cable has a micro-A plug on one end, and a micro-B plug on the other end (it cannot have two plugs of the same type). The original USB OTG standard introduced a plug receptacle called mini-AB that was replaced by micro-AB in later revisions (Revision 1.4 onwards). With the introduction of the USB micro plug, a new plug receptacle called micro-AB was also introduced.

An OTG product must have a single micro-AB receptacle and no other USB receptacles. Since references to Mini ATX have been removed from ATX specifications since the adoption of microATX, the AOpen definition is the more contemporary term and the one listed above is apparently only of historical significance. One important property of the insulation which affects the current-carrying capacity of the wire is the maximum conductor temperature. This is a specification for PVC insulation (other thermoplastics are permitted, but rarely used) with a nylon jacket for abrasion resistance. Universal Serial Bus (USB) 2.0 specification originally agreed upon in late 2001 and later revised. Koeman, Kosta (22 November 2001). "Understanding USB On-The-Go". In the default link configuration, the A-device acts as a USB host with the B-device acting as a USB peripheral. The OTG or embedded host can leave the USB link unpowered until the peripheral (which can be an OTG or standard USB device) requires power. OTG adds a fifth pin to the standard USB connector, called the ID-pin; the micro-A plug has the ID pin grounded, while the ID in the micro-B plug is floating.