Internet is necessary for our daily life, when we connect to the internet we usually use modem and router, but still, a lot of users do not know what is a modem and what is a router, let alone how to use the modem and how to use the router. This article is to introduce the difference between modem and router.}

Many people know to surf the internet needs router, but don’t know the function of the router, or the difference between router and modem. In the early years, we use the modem surf the internet without the router. So, what is the difference between router and modem?}

When you choose serial to ethernet converter, I suggest you consider USRIOT’s M4 and M0 series serial to ethernet converter. USRIOT is a china manufacturer which is an industrial leader in IoT field for serial data communication. USR IoT has 3 hundreds of employees and tens of thousands of customers, several millions of products are sold all over the world, which enjoy very high brand awareness and reputation in the industry.}

USR-TCP232-302 is a RS232 serial device server, which can realize bidirectional transparent transmission between RS232 and Ethernet. USR-TCP232-302 belongs to USRIOT's low cost M0 serial to ethernet converter. USR-TCP232-302 is internally integrated with TCP/IP protocol.User can apply it to device networking communication. }

Embedded Serial Device Server/GSM Module USR-GPRS232-7S3 can realize two-way data transparent transmission between COM and GPRS / GSM network by using a SIM card. }

The industrial cellular router is replying on 2G/3G/4G network for communication over the internet by a remote system.}

WH-BLE102 is a low-power Bluetooth module which supports BLE 4.2 protocol and the user can realize communication through simple configuration.}

Application of Serial Device Server USR-TCP232-410S}

Application Field of Cellular Modem USR-GPRS232-734 in Network Server}