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The Huawei E220 is a Huawei HSDPA access device manufactured by Huawei and notable for using the USB interface (USB modem). Technically it is a modem, USB and (due to the ISO 9660 format) virtual CD-ROM device. Launched on 21 June 2006, [1] the device is used for wireless Internet access using 3.5G, 3G, or 2G mobile telephony
Major producers are Huawei, Option N.V., Novatel Wireless. More recently, the expression "connect card" is also used to identify internet USB keys. Vodafone brands this type of device as a Vodem. [5] Often a mobile network operator will supply a 'locked' modem or other wireless device that can only be used on their network.
The original Huawei E220 supports up to 3.6 Mbit/s, and can connect up to 7.2 Mbit/s with a firmware upgrade. The Vodafone K5150 Vodem is a CAT4 4G device, capable of download speeds of up to 150 Mbit/s on a 4G LTE network [3] and 42.2 Mbit/s with a dual-carrier network.
On a data modem, the carrier's loss equates to the connection's termination. Much like the Ring Indicator signal, on a PC's serial port, changes to the DCD signal state can generate a hardware interrupt that can be captured by the processor any time the DCD signal changes state, preventing the PC from needing to constantly poll the pin.
The WAN interface of this device, in this case the DSL port, could expose CWMP to the internet service provider. Technical Report 069 ( TR-069 ) is a document by the Broadband Forum that specifies the CPE WAN Management Protocol ( CWMP ).
Ethernet over USB is the use of a USB link as a part of an Ethernet network, resulting in an Ethernet connection over USB (instead of e.g. PCI or PCIe).. USB over Ethernet (also called USB over Network or USB over IP) is a system to share USB-based devices over Ethernet, Wi-Fi, or the Internet, allowing access to devices over a network.
The compatibility issue still exist since the introduced of the IGDv1 client in Windows XP in 2001, and a IGDv2 router without a workaround that makes router port mapping impossible. [ 8 ] If UPnP is only used to control router port mappings and pinholes, there are alternative, newer much simpler and lightweight protocols such as the PCP and ...
In computer networking, a wireless access point (WAP) (also just access point (AP)) is a networking hardware device that allows other Wi-Fi devices to connect to a wired network or wireless network. As a standalone device, the AP may have a wired or wireless connection to a switch or router , but in a wireless router it can also be an integral ...