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The idle line state is when the device is connected to the host with a pull-up on either D+ (for full speed USB 1.x) or D− (for low speed USB 1.x), with transmitter output on both host and device is set to high impedance (hi-Z) (disconnected output).
When adding USB device response time, delays from the maximum number of hubs added to the delays from connecting cables, the maximum acceptable delay per cable amounts to 26 ns. [38] The USB 2.0 specification requires that cable delay be less than 5.2 ns/m (1.6 ns/ft, 192 000 km/s), which is close to the maximum achievable transmission speed ...
This connection event is passed to USB.onconnect or USB.ondisconnect when the agent detects a change in the connection status. USBDevice: Interface that provides metadata about the connected device and methods for controlling it. Importantly this is the main interface the developer will use for interacting with the device. USBInTransferResult
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The USB-IF used WiGig Serial Extension v1.2 specification as its initial foundation for the MA-USB specification and is compliant with SuperSpeed USB (3.0 and 3.1) and Hi-Speed USB (USB 2.0). Devices that use MA-USB will be branded as "Powered by MA-USB", provided the product qualifies its certification program.
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Without this cable the remote video facilities will still work, and if the external USB cable is connected, the remote keyboard and mouse will work—but nothing else (including power control) will function properly. Moreover, some servers will pause for 30–120 seconds after power-on if the RSA-II is installed but the cable is missing.
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