ADSL Modem is a necessary product for broadband access. However, many users do not know about its daily maintenance. Due to CAT problems, the network connection is often affected. During the use of ADSL equipment, it is inevitable that such a fault will occur. By analyzing and solving the fault, we can not only find a solution, it can also better maintain and use ADSL devices.
I. Routine hardware maintenance:
1. ADSL
Edit comments:Most ADSL Modem supports multiple network protocols and provides static routing functions, which can be regarded as a complete router. I often encounter many users who specify that the Modem must have the routing function when purchasing the ADSL Modem. The answer is often that the Modem with the routing
Nbsp; 1. connect the wireless Modem to the serial port 1 (/dev/ttyS0) of the PC. 2. first, use minicom (we strongly recommend that you create a new Terminal in the linux graphical user interface, and then run minicom) to set the speed to 57600, 8N1, and HardwareFlowControl.3. run AT to see if OK is returned
1. connect the wireless Modem to the serial port 1 (/dev/ttyS0) of the PC.2. first use minicom (we st
Modem or "cat" and the router how to connect it? Facing the Router 5 interface Many users feel the head is big, do not know should insert that one interface and modem to connect. In fact, the connection between the cat and the router is very simple, this article will be specific to the family members of the connection method.
ADSL Internet through the time will use the
Talking about Cable Modem broadband access technology and its maintenance when talking about Cable Modem broadband access technology and its maintenance, we need to first understand what Cable Modem?1 Cable Modem the concept Cable Modem is also known as a Cable
Set up GPRS wireless MODEM dialing-Linux general technology-Linux technology and application information under LINLUX. The following is a detailed description. 1. Connect the wireless Modem to the serial port 1 (/dev/ttyS0) of the PC.
2. First Use minicom (we strongly recommend that you create a new Terminal in the linux graphical user interface and then run minicom) to set the speed to 57600, 8N1, and Har
In some devices, we use the hardware with built-in ADSL Modem. So how to set it? What is the difference from the external ADSL Modem we normally use? Next we will explain it. The built-in ADSL Modem card corresponds to the common built-in "cat". With it, you can enjoy the fast and easy access to ADSL without installing the NIC. however, before using the built-in
1. Connect the wireless Modem to the serial port 1 (/dev/ttyS0) of the PC.
2. First Use minicom (we strongly recommend that you create a new Terminal in the linux graphical user interface and then run minicom) to set the speed to 57600, 8N1, and Hardware Flow Control.
3. Run AT to check whether OK is returned. If no result is returned, the serial port settings are incorrect, or the serial port rate settings of the Saro
required for each computer. However, its default service IP address ranges from 192.168.1.3 to 192.168.1.131. To increase the number of machines, follow these steps. Click DHCP in advanced settings. First, disable the DHCP service. Click Disable on the right. Enter 192.168.1.255 at the maximum IP address. Make sure to activate the DHCP service again.B. You can choose to automatically obtain an IP address for each computer without an IP address ). However, DNS and gateway are required.Set DNS to
Keywords: Java serial port programming, SMS Modem, AT command
Ultimate Goal: provide a stable and reliable Java SMS sending server in Linux.
Stage 1: Coding and testing on the Win32 platform;
Stage 2: deploy and test on the Linux platform;
Directory:
Related Resources: (Java Communication package)
Preparation for Win32 serial Programming
Test procedure and AT command for Win32 SMS Modem:
Preparations
We have described the two most common ways to configure ADSL and their respective uses, and now we start by using the Web as an example to detail the many configuration options that you might encounter when configuring an ADSL modem.
Detailed configuration of Web mode
In the Web configuration interface, the following author will be in the order of each label, each one to introduce the details of which, in most of the options, will make a detailed ex
---1. Add BB modem.Add MD, alreay install the modem driver ..
Control pannel> Add new hard> Search hardware> check in "yes, I alreayd connto this hardware"> scroll last, "Add new hardware divece"> install hard from List (advance)> modem> check "no check my modem, I will select form List"> starnd modem, 192bps> Select
Test code: Http://www.cnblogs.com/Files/dyj057/Gms%20Modem SMS transceiver components. rar
There are many types of SMS deployment scenarios, and we now introduce 3 major deployment scenarios. Customers can choose one of these schemes to implement and complete the application of SMS.
Deployment of GMS Modem
Purchase hardware devicesThe GMS Modem (Short message module) is a hardware device which communicates
Workaround:
1, at the same time press the WIN+R key combination (Win is alt next to the Microsoft icon key), in the running window input regedit.exe, click OK;
2, in the registry to the left of the point open: hkey_local_machine\system\currentcontrolset\services\tcpip\parameters;
3, select Parameters, click on the Menu "edit", a new "multiple string value" item, and then named ReservedPorts;
4, double click Create "ReservedPorts", enter 1723-1723 in "Numerical data", click OK, then close R
Zhongxing 831ADSL Modem
How to set 831:
First, 831 of the built-in software brush to 2. 79 version, can www.zte.com.cn download (how to brush in the description inside)
831 the factory set Ethernet port IP address is 192. 168. 1. 1, in order to be able to use Telnet access to 831, we now set the address of a computer to 192. 168. 1. *, using ping 192.168.1.1 to see if you can access to 831, no problem continue, in DOS mode into Telnet 192.168.1.1,
Modem has three nodes: ttyusb0, ttyusb1, and ttyusb2.
Ttyusb1 is the AT command node and ttyusb2 is the data node (which is the data node? Ask the vendor)
First, set the modem through ttyusb1 as follows:
1. At + cgdcont = 1, "ip", "cmnet"
2. At + cgatt = 1
3. ATD * 99 *** 1 # (my SIM card is from China Mobile)
After logging on to the GPRS network, create a PPP connection.
Modify/etc/PPP/peers/cmnet as fol
Use a modem to connect two Windows XP computers. The following conditions must be met:
L two computers with modem installed and modem driversProgramNormal Installation
L two independent telephone lines (two different phone numbers)
L configure a computer as a host
L configure another computer as a client
1. Configure the host
1) Open Control Panel-net
It is very important to know how to configure the route of the ADSL modem. Here we will mainly introduce the detailed steps for configuring the route of the ADSL modem. As a mature broadband access technology, ADSL, with the advantages of fast transmission speed, simple installation and use, saving investment, "surfing the Internet" and "talking", and high-speed network interconnection and sharing, more and
Article Title: use modem to access the Internet in redhat9. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Nowadays, Linux is becoming more and more powerful, and Linux is becoming more and more convenient to use. More and more modem families are joining the ranks of Li
There is a GPRS Modem during the development of a. Net micro framework project. We provide 5 V voltage through the serial port on the motherboard.
GPRS modem design board
We use txd and rxd, which correspond to the com4 on another motherboard chip. When we start to implement the GPRS Modem dialing, I want to use the GSM 7.07 standard, on the objective ter
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