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It's good to rent a cat, because if it's not broken, it's always yours and after the deadline.
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According to your description: the cat of the telecom is rented for free, and as long as it is returned after the expiration of the broadband agreement, as long as the cat is good, renting or buying it will not affect the use.
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Obviously, it is cost-effective to rent a cat, and now the telecom will ask you to pay how much money you have to pay at once, and then rent a cat for free, and if it is broken, go directly to the telecom, and repair or replace the cat for free.
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Dear users:
Hello, it's a pleasure to serve you!
According to your description, many times Telecom has free rented cats, if there is, you might as well use a free rented cat, if not, you can buy a cat, the market price is not expensive.
If you are satisfied with me, I hope you have a happy life.
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Hello: It is recommended that you apply for an annual telecom broadband, and Telecom will provide telecom cats for free. Broadband cats are the same, if it is a broadband cat provided by telecommunications, if it is broken, telecom will also replace it for free.
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We pay more than 100 yuan later, you don't need it, the staff will come and take it, and give you the money, which can be regarded as rent in disguise.
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The telecom cats are the most rubbish, but it's basically okay to play at home.
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Yes, it is generally sent together with the broadband service and returned when the business is completed.
The cost of optical fiber installation is high, the installation cost of major operators ranges from 200-500 yuan, China Telecom has a refundable one, China Mobile and Great Wall Broadband are not refundable, and the others are unknown.
Cat FAQs.
The power light does not come on.
The device is not powered on, or the power plug is faulty, resulting in the failure to supply power normally, and the plug can be replaced if it is not restored after re-plugging.
The optical fiber (PON) is not bright.
It means that the device is not registered and all services cannot be used, in this case, you need to contact the operator to send maintenance personnel to register, and it is difficult to complete it by yourself. If it's flashing.
The light signal (LOS) is lit.
If the light is red, it means that there is no signal from the fiber, and if it is green, it means that the device is not registered. In both cases, it is necessary to contact the maintenance personnel to deal with it.
LAN lights don't come on.
If your device has no network, check whether the light of the corresponding interface here is always on, if it is not on, it may be that the interface is loose, or the network cable is faulty, and it can be solved by plugging it in or replacing the network cable.
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If the broadband service is sent together, the salesman will install and activate it at home.
It's all optical cat router all-in-one machine,If the area of the home is not large,The wifi emitted by this all-in-one machine is also enough,But if the area of the home is relatively large,It is still recommended to use another router。
Because after all, the performance power of this optical modem is limited, and at the same time, it needs to convert the signal to transmit wifi, which will lead to heating, or its own performance is not enough, and the wifi emitted by the seat can only be regarded as barely enough, so if you want to use it more securely, it is still necessary to add a high-performance router.
The general design life of optical modems is 50,000 hours of uninterrupted (7*24) use, which is about more than 5 years. Generally speaking, the service life of the old modem (the kind of user who returns without using broadband) from the user** is within this period, so the old modem usually does not have any quality problems.
In most cases, as long as the optical attenuation of the optical port of the modem is within the normal range, the network speed will not be affected. If you feel that the modem may affect the network speed, you need to connect the computer to the LAN port of the modem, and set PPPoE dial-up on the computer to test the speed and latency of the uplink and downlink.
If the LAN port of the optical modem is connected to test the network speed is slow, you can call the operator's ** and let a special maintenance personnel come to deal with it and ask for the optical modem to be replaced. However, if it has been replaced once instead of the optical modem provided by the installation, the replacement is also the old optical modem (most of which are the case).
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When handling the installation of broadband, the optical modem used in optical fiber in different regions is different types, specifically ask the local telecom optical modem whether it uses EPON or GPON, the two types of optical modems are incompatible, so if you buy the wrong one, you can't use it, in addition, the optical modem is configured by the operator when it is installed, if the local telecom does not support the optical modem you bought, it cannot be used.
When installing the optical modem, you also need telecommunications personnel to come to install and register your optical modem, be sure to use the cat you bought, if it is different from the local registration and certification method, it cannot be used.
The traditional ** wire system uses the low-frequency portion of the copper wire (below 4kHz). ADSL uses DMT (Discrete Multi-Audio) technology to divide the original ** line OKHZ to the frequency band into 256 sub-frequency bands with a frequency width. Among them, the frequency band below 4kHz is used for transmission of POTS (traditional ** service), the frequency band from 20kHz to 138kHz is used to transmit uplink signals, and the frequency band of 138kHz is used to transmit downlink signals.
DMT technology can adjust the number of bits modulated on each channel according to the situation of the line, so as to make full use of the line. In general, the greater the signal-to-noise ratio of a sub-channel, the greater the number of bits modulated on that channel, and if the signal-to-noise ratio of a sub-channel is poor, it is discarded. ADSL can achieve a data transmission rate of 640Kbps uplink and 8Mbps downlink.
As can be seen from the above, for the original ** signal, the original frequency band is still used, while the ADSL-based service uses the frequency band other than **voice. Therefore, the original ** business will not be affected in any way.
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Situation 1, when installing, it is said to be buying, in fact, it is to pay a deposit, it is to rent a cat, and when the time is cancelled, it will be taken back and the deposit will be refunded. Situation 2, it's really buying, but it's not ** when you cancel it, even if he is called **, you can stay, as long as you have a receipt for buying a cat before, an invoice and something like that. If you rent, the receipt says that it is rented, and he can't rely on this.
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Telecom connection broadband still needs a cat, the full name of this cat is modem, its main role is to convert optical signals into electrical signals that can be recognized by computers. Calling the modem a cat is affectionately called "cat" based on the homonym of its modem;
It generally consists of a modulator and a demodulator. At the sending end, the digital signal generated by the serial port of the computer is modulated into an analog signal that can be transmitted through the ** line; At the receiving end, the modem converts the analog signal fed into the computer into the corresponding digital signal and sends it to the computer interface. In personal computers, modems are often used to exchange data and programs with other computers, as well as to access online information service programs.
If the network cable network is fine, the cat may burn.
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