Sunday 4 October 2015

Routers and modems

Standalone

Standalone mobile broadband modems are designed to be connected directly to one computer. In the past, these used the PCMCIA, ExpressCard and Compact Flash standards to connect to the computer. These standards have become deprecated by the end of the 2000s in favour of USB-based modems, which are compatible with a greater number of devices. Some models have a built-in GPS chip, while others do not.


Integrated router

Many mobile broadband modems sold nowadays also have built-in routing capabilities. They provide traditional networking interfaces such as Ethernet, USB and Wi-Fi.
Models are available for both consumers and enterprises. Some require the use of an AC adapter, while others are portable and can also be powered by a USB connection or a built-in battery. An RJ11 registered jack is also present on a few of these modems, allowing the connection of a traditional home phone to make cellular calls.

Smartphones

Numerous smartphones support the Hayes command set and therefore can be used as a mobile broadband modem, although several mobile network operators charge a fee for this feature.
Other networks have an allowance for full speed mobile broadband access, which can result in overage charges or slower speeds if exceeded. When connected directly to the computer, the phone has the same capabilities as a standalone modem. Those with built-in Wi-Fi also typically include routing and wireless access point features. This method of connecting is commonly referred to as 'tethering'.

No comments:

Post a Comment