FAQs about ADSL hardware

What is the difference between the ADSL splitter and telephone segmentation? What is a separator?
Answer: ADSL separates the low-frequency and high-frequency signals transmitted by ordinary telephone lines by means of the frequency division technology. Less than Hz is used by telephone; higher than Hz is used by the Internet, that is, data and voice signals are transmitted separately on the same copper line, and data signals are not transmitted through telephone switches. In this way, high-speed transmission can be provided: the low-speed transmission from the uplink to the network can reach 640 Kbps, and the high-speed transmission from the downlink to the user can reach 7 Mbps; in addition, accessing the Internet does not affect the normal use of the phone. The separator is used to separate the high-frequency and low-frequency signals in the ADSL telephone line.
Will I change my phone number if I modify ADSL on my current phone?

A: Generally, this will not change. Because the ADSL signal is completely independent of the phone signal and does not affect each other, the ISDN is completely different. There is an ISDN signal in the line. When the telephone and data are together, the ISDN must change the number, which is also a small advantage of ADSL.
Can I use a dial-up Modem as an ADSL Modem?
A: No. The ADSL Modem is different from the current dial-up Modem. The modulation method and network structure are different, and the interface to the PC is 10BaseT Ethernet interface instead of RS232 serial port or parallel port. Likewise, ADSL modem cannot be used as a common modem.

Do users need to apply for a dedicated telephone line to install ADSL? What are the requirements for users' computers?

A: To install ADSL, you can modify the existing telephone line or apply for the second telephone line dedicated for Internet access. There is no difference in installation and use. If you use an existing phone line, the previous phone number remains the same. As for the computer requirements, generally 586 level computers are enough, with no special requirements. You can use a simple method to determine whether your computer is suitable: You can use a common Modem to access the Internet, and other computers that are still able to access the Internet can use ADSL.
In addition, due to the high speed of ADSL, You need to insert a 10 MB ethernet card with an ordinary RJ45 connector on your computer ).
Will ADSL reduce the quality of telephone calls, and will phone calls lead to a decrease in the Internet access rate?
A: ADSL uses the frequency division multiplexing technology to separate voice and data. Although it is on the same telephone line, the voice and data run on different frequency bands, so they do not interfere with each other. Even if you use a phone call to access the Internet, the speed of the Internet access will not decrease, and the quality of the call will decline.
Can ISDN modify ADSL?
A: Although the bearer media is a copper core line, the voltage and signal code of the ISDN telephone line are different and cannot be changed to ADSL for the time being. You must first convert the ISDN to a common Linear phone before accessing the ADSL.

How do I install an extension number or other devices on my ADSL line?
Answer: It is best to connect the ADSL filter splitter to the import of the telecommunication bus, and then expand the extension from the telephone port separated by the splitter. Of course, the extension can be connected theoretically, however, in this case, other electronic devices (telephones) are incorporated between the bus entry, that is, the Telecommunications Board) and the separator, which may interfere with the communication of ADSL, because ADSL has high requirements on the line quality, it may affect the normal operation of ADSL, so it is generally necessary to install the extension after the separator line.
Can I use 10 M/M network cards for ADSL?
A: Yes. ADSL external Modem has a 10Base-T interface and supports 10 m Nic. Currently, the vast majority of M NICs also support 10 M, so they can be used.
Why can't PPPoE be used on computers on the LAN when the ADSL connection uses 10 M/100HUB??
Answer: The 10 BASE-T standard (10 M) is used for ADSL. It can connect to a 10/100 m hub, however, if the connection speed between your computer and the HUB is 100 MB, The HUB's 10/100 switching module does not currently support PPPoE well, therefore, PPPoE may not be able to locate the ADSL signal at a speed of M, so it cannot be used. The solution is to create a 10 m network cable using a 10 m wiring method for the PPPoE dial-up computer, or use the NIC setup program to forcibly set the speed of the network card to work at 10 m.
Why is my ADSL data traffic too high?
A: We generally think that this is a poor quality or compatibility of NICs, especially for 10 m NICs of the old ISA bus. Because PPPoE is a relatively new technology, such NICs may have compatibility problems and are slow, cause the final line of the conflict to be deadlocked or even crashed.
Is the speed of 10 M/M Nic used on ADSL different?
A: In general, the speed will not be different, because the ADSL Internet access speed is not limited by the NIC and less than 10 M, but for the 10 M Nic, A large part of the ISA interface uses the I/O addressing mode, and its CPU usage is extremely low in efficiency, which will slightly affect the speed, therefore, we recommend that you use the PCI interface 10 M/M dual-speed adaptive Nic.
My location is far away from the Telecommunications Branch of the Telecommunications Bureau. Can I install ADSL?
A: currently, the distance between ADSL technology and the Telecommunications Bureau is less than 5 kilometers. Therefore, it depends on the situation. Because ADSL has high requirements on the line, therefore, to ensure the quality of communication, it is generally considered that less than 3KM is better.

Will ADSL be dropped like a 56 K Modem?
A: When any connected device fails, ADSL will also be dropped. However, as long as the line quality is good, the chance of disconnection is still very small.
ADSL does not mean to use the ADSL line. I have installed it. Why didn't I see the Telecommunications Bureau change the line?
A: In fact, the physical media used by ISDN lines, telephone lines, and ADSL lines are common telephone lines, but the signal standards are different. The communication board will not change the lines for you, you can only connect your telephone lines to different devices in the IDC of the Telecommunications Bureau, which is invisible to end users.

If I use ADSL to access the Internet, will I generate a telephone fee like ISDN or 56 K modem to access the Internet?
A: No. The channels used by ADSL for data communication do not enter the local switch, and no telephone fee is generated. Of course, you still need to generate a call charge when calling through the ADSL line.
Why is my ADSL often disconnected?
A: This involves many problems, including ISP access server faults, line faults, line interference, adsl modem fault fever, quality, and compatibility), slow Nic speed, and outdated drivers) among them, we recommend that you perform the following checks: The ADSL telephone line is secure and far from the power cord and high-power electronic equipment. No telephone extension or fax machine can be installed between the ADSL entry line and the separator, correctly install the splitter and replace the old isa nic with a 10 M/m pci Nic and the latest driver to ensure sound heat dissipation of the adsl modem. Finally, contact your ISP.

Can I connect to the ADSL device on the extension?
A: currently, no. You can only connect to the ADSL terminal device on a linear phone. ADSL is a Transmission Technology Based on twisted pair wires. Twisted Pair wires wrap two insulated copper wires together with each other according to certain rules, which can effectively resist external electromagnetic interference. However, most of the telephone lines on the market are parallel lines. Many of the lines from the telephone company's junction box to the user's telephone are parallel lines, which is very unfavorable for ADSL transmission, too long non-twisted pair wires may cause unstable connection, DSL light flashing, and other phenomena, thus affecting Internet access. Because ADSL overlays high-frequency digital signals on the low-frequency voice of common telephone lines, the addition of any device in the connection from the telephone company to the ADSL filter will endanger the normal transmission of data, therefore, do not connect devices such as telephones and telemarketers before filters,