at t cable modem

three types of connections: Male to female, male to male. Mother to mother. Each of the three connectors has crossover lines and straight lines, so there is a total of 6 connections in the same way.Question 2: How to identify the cross-serial line and direct-connect serial line?Check it with a multimeter. Suppose 2 and 2 pass. The general 3 and 3 are straight serial lines. Assume that the 2 and 3 pass, 3 and 2 general are cross-serial lines.Someone confused the outside of the mother is an insul

Internet access in China has developed very rapidly. It may not matter if many people do not know about cable modem in Internet access. After reading this article, you must have gained a lot, I hope this article will teach you more things. When cable modem uses a cable TV ne

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 is developed in recent years, mainly for CATV network data transmission. Most new cable networks now use fiber-optic coaxial hybrid (HFC) networks, and their huge bandwidth and relative economics make them attractive to cable companies and newly established telecoms companies. Because

cannot detect Modem Symptom: Why can't I detect the modem in Win 95? Should I replace it with WIN 98? Method: perform multiple checks. Step: perform multiple checks: The computer serial port may be damaged. You can place the mouse on this serial port. If you can use it properly, it indicates that the serial port is good. Otherwise, the serial port may be broken or the serial port is disabled in BIOS. If yo

powered (non-isolated cable), DC 5V DC 30mA.Full transparent data conversion.Compatible with any Hart protocol.1.3 Product FeaturesBuilt-in isolated dc24v output provides power and communication to second-line instrumentation to minimize wiring.The Hart signal is transmitted by means of an isolated transformer.Built-in high-precision loop 250ω resistor, communication test, no additional resistance required.With switch, can be converted with or withou

Analysis on the reason of frequent drop of modem 1, if the ADSL modem just as bridging mode access, first through the ADSL Modem Web page to view the line attenuation, Snr margin (this value is normally 15-40db, if less than 10db, indicating that the current line quality is not good enough), line speed and other parameters, If these parameters are abnormal, plea

What does the ADSL modem mean? often have netizens to consult this problem, ADSL modem is a modem, commonly known as "cat", users of ADSL broadband after (telephone line internet), must use ADSL modem this equipment, can normal internet. 　　Why do you use ADSL Modem? 　　ADS

conveniently implemented.4. rack mountingA rack Modem is equivalent to a set of Modem in a cabinet or housing, and is powered by a unified power supply. Rack-mounted Modem is mainly used in Internet/Intranet, telecom bureaus, campus networks, financial institutions, and other network centers.In addition to the above four common

SMS cats are devices used to send and receive text messages. They are the same as mobile phones.Insert the SIM card and connect it to the computer through the (USB or serial port) data cable/PCI slotYou can use related software on your computer to send and receive text messages. Related software is the text message application that sends and receives text messages.You can develop your own device, or ask the device manufacturer of SMS to provide The

SerialPort enables modem incoming call display A friend took a case, but had to go on a business trip temporarily, so I called some functions for me to do it. I have always paid attention to WEB programming, but I am still unfamiliar with serial programming.ArticleA lot. Of course, it is better to count the articles in cnblogs for help. Write this into your blog for future reference, hoping to help those who need help.This section mainly describes ho

Operating environment: FreeBSD 3.4-release, the same dimension 56K external modem First, set/etc/ppp/ppp.conf #vi/etc/ppp/ppp.conf If the modem company COM1 Port is set to: Default Set DEVICE/DEV/CUAA0 (other can be invariant) ..... If the modem company COM2 Port is set to: Default Set DEVICE/DEV/CUAA1 (other can be invariant) ..... Second, run PPP int

Cable TV Cable (Cable) mode broadband access to the Internet is the standard docsis (Data over Cable Service Interface specification), Recently this standard has been upgraded to 2.0, and Imedia announced in April the DOCSIS2.0 chip IM6030 and a reference design that can be mass-produced immediately. This means that th

The network cable is already inseparable from our life. Because we often use the network cable, we need the network cable to access the Internet. Therefore, we need to learn how to make the network cable so that we can better control our life in Russia, Okay. Let's just talk about the network connection methods. Th

How many meters does the network cable transmit at most? Several common categories of network cable and network cable transmission Maximum network cable data transmission distance If you know more about the network, you know that the twisted pair wires have an insurmountable "100 meters" transmission distance. The max

Overview: analyzes and solves some problems when accessing the internet at home.I. Wireless routers A wireless router is used for accessing the Internet and providing wireless coverage. A wireless router can be used as a forwarder to forward the broadband network signal received from the home wall to nearby wireless network devices (laptops, WiFi-enabled mobile phones, etc.) through an antenna ). Popular wireless routers in the market generally support four access methods: XDSL/

Modem and ADSL dial-up Internet modem. The English name is modem ". A modem is a computer hardware that translates computer digital signals into pulse signals that can be transmitted along common telephone lines, these pulse signals can be received by another modem at the ot

Note: These are common Modem commands. Some commands may not apply to all modem instances. If any problem occurs, see the modem documentation or contact the modem manufacturer's Technical Support Department. All commands (with two exceptions) must start with the character. The two exceptional commands are escape sequ

Production and Application of direct connection network cable and Cross network cable production and application of direct connection network cable and Cross network cable (cross line) one is the standard of the T-586A, the other is the standard of the T-568B can be directly connected to two computers (NIC-to-nic) Ord

/brownStep 6: Cut bare twisted pair wires with scissors or diagonal pliers 14mm The reason for leaving this length is to comply with EIA/TIA standards, you can refer to the relevant RJ-45 connector and twisted pair wire production standards. Finally, put each wire of the twisted pair into the pin of the RJ-45 connector in sequence, the first pin should put white orange lines, and so on Step 7: Determine the twisted pair of each line has been correctly placed a