Table of Contents
USB On-The-Go (USB OTG or simply OTG) is a protocol that allows USB devices, such as tablets or smartphones, to operate as a host, allowing other USB devices, such as USB flash drives, digital cameras, mice, and keyboards, to be connected to them. It was first used in late 2001.
The Use Of USB OTG
The use of USB OTG allows those devices to flip between being a host and a device. When linked to a host computer, a mobile phone can read from removable media as the host device, but when attached to a host computer, it appears as a USB Mass Storage Device.
USB OTG presents the concept of a device that may serve as both a host and a peripheral – when two USB devices are connected, and one of them is a USB OTG device, a communication link is established. The device that controls the link is known as the Host, while the other is known as the Peripheral.
USB OTG defines two device roles: OTG A-device and OTG B-device, indicating which side of the link supplies power and which is the host at first. A power supplier is an OTG A device, while a power consumer is an OTG B device. The A-device serves as a USB host, while the B-device acts as a USB peripheral in the normal link configuration. Using the Host Negotiation Protocol, the host and peripheral modes can be switched later (HNP).
Each device’s initial function was determined by which tiny plug a user inserted into its receptacle.
Overview
Standard USB uses a Master/Slave design, with a host serving as the bus’s Host device and a USB device serving as a Peripheral. When using standard USB, devices must adopt one of two roles: hosts or peripherals.
Computers are usually set up as hosts, whereas printers, for example, are usually set up as peripherals. In the absence of USB OTG, cell phones used Peripheral capability to facilitate data transfer to and from computers.
As peripherals, such phones could not easily be connected to printers because they also served as peripherals. This problem is directly addressed with USB OTG.
Specifications
USB OTG is a supplement to the Universal Serial Bus (USB) 2.0 specification, which was first agreed on in late 2001 and has since been amended. The most recent version of the supplement additionally defines behavior for an Embedded Host with specific abilities and a USB Standard-A port similar to that found on PCs.
The USB OTG and Embedded Host Supplement to the USB 3.0 specification supports SuperSpeed OTG devices, Embedded Hosts, and peripherals.
OTG Micro Cables
When an OTG-enabled device connects to a computer, it does so via its own USB-A or USB-C cable (typically ending in micro-B, USB-C or Lightning plugs for modern devices). When an OTG-enabled device is connected to a USB slave device, such as a flash drive, the slave device must either end in the device’s suitable connection or the user must supply a USB-A converter.
Any regular USB peripheral can be connected to an OTG device with this adaptor. Connecting two OTG-enabled devices requires either an adapter in conjunction with the slave device’s USB-A cable, or a suitable dual-sided cable and software to manage it. With USB Type-C devices, this is becoming more frequent.
OTG Cable Price In Ghana
The price of an otg cable in Ghana is between ยข 16 – ยข 50. Price may be different
Leave a Reply