Let ADSL access the Internet more efficiently and talk about how to choose "cat"

Source: Internet
Author: User

In the existing broadband Internet access methods for domestic users in China, the proportion of ADSL is probably the majority, and even many small offices share the Internet through the ADSL leased line. All ADSL users access the Internet through an ADSL Modem (Ethernet interface, USB interface, or PCI interface modem), which is usually set and debugged by the staff, basically, you don't need to do it. You only need to turn on the power when using it. If it is in the dial-up access mode, you only need to dial the number in the computer.

To meet different user and computer configurations, ADSL Modem provides three different interface types: Ethernet, USB, and PCI. But in daily use, what is better for Ethernet interfaces, USB interfaces, and card-type modem? Let's analyze it in detail.

I. PCI interface Modem

The PCI interface is an internal Modem, just like the common PCI Card and PCI common Modem, which is mainly applicable to home users.

PCI interface Modem

During use, it is inserted into the PCI slot of the computer motherboard, and the slot is connected to the slot through a golden finger for data communication and power supply.

Excellent: The price is low, satisfying the needs of some users who do not have strong requirements on speed and performance and are less economical.

Missing point: this Modem is a poor performance, with a slow running speed and easy disconnection, because its main data processing work is achieved through the CPU or MPU of the motherboard, which greatly increases the workload of the CPU or MPU.

Ii. USB interface Modem

The performance of the USB interface is better than that of the PCI interface. Of course, the price is higher. It is an external Modem. It is mainly applicable to home users. It is much higher in terms of speed and performance than the PCI interface. With good performance, the price will naturally be higher, just like external common MODEM and built-in common MODEM.

USB interface Modem

The USB interface is directly connected to the computer. The connection is simple, and the software is easy to set. No Nic is attached and no external power is needed. A desktop or laptop with a USB interface can be used for easy installation without the need to open the chassis. It can meet the performance price requirements of individual household users. Its simple installation and configuration methods are especially suitable for common users who are not familiar with computer technology performance.

Advantage: the USB interface itself can be hot-swappable, which is easy to install and use, and the interface speed is fast.

Weaknesses: USB interfaces are not easy to expand, making it difficult to connect to multiple devices. Today, USB interface Modem has a fixed USB interface for a long time.

Iii. Ethernet interface Modem

The ADSL Modem of the Ethernet interface is more suitable for local networks in the home and SOHO networks. It can bring multiple machines to access the Internet and is an external Modem.

Ethernet interface Modem

The ADSL of the Ethernet interface has a 10/100 M Ethernet port, which can be used to connect the NIC or switch, so that the entire LAN user can share the Internet. ADSL Modem with the routing function of the external Ethernet interface supports DHCP, NAT, RIP, and other functions, and its own ip pool (ip pool) can automatically assign IP addresses to users in the LAN, it facilitates the establishment of the network, thus saving costs.

Excellent: the performance of this Modem is the best, and its functions are the most complete. Some also have the bridging and routing functions, so that users can save a vro.

Shortage: The price is more expensive than the PCI and USB interfaces used by the household.

Written at the end:

USB and PCI are cost-effective, compact, convenient, and practical. The price of these three Interface Types of ADSL Modem is of course the cheapest in PCI, the most expensive in Ethernet interface, and the moderate price in USB interface. However, ADSL Moedm with an Ethernet interface is the most common in use. The integrated Nic of the motherboard brings great convenience to users and promotes the development of the ADSL Modem with the Ethernet interface.

In fact, the current purchase of adsl modem is similar to any other device or product, with many considerations, it is not easy to purchase a satisfactory adsl modem among so many brands. You must pay attention to your own needs when purchasing the adsl modem, the above introduction is intended to help users who are currently unable to purchase adsl modem!

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