Overview of the Acorp 56EMSF modem
Six months ago, a neighbor brought the box shown in the photo, I have never dealt with such devices. I had to go to the Internet. And here's what turned out:
“This modem can be briefly described as a modem for an ordinary Russian user. First of all, the important thing is that it is a complete hardware modem. This means that it does not use processor power and RAM at all. The modem is completely self-reliant. Of course, if you have a Pentium 4 and 512 MB of RAM, this is not all that important. But for the owners of old "fours" such unpretentiousness can play a decisive role in choosing a device. "
In the search process, we managed to find out the following, see the screenshot from the Yandex search engine.
In general, the thing is morally outdated, but as it turned out, inside this box there are parts valuable for radio amateurs. The appearance of the printed circuit board is shown in photo 1.
On the board, in addition to SMD resistors, capacitors, transistors, diodes, there are also elements of particular interest.
Digit 1: DC-DC converter controller - AIC1563. Judging by the documentation, this is one of the universal controllers capable of operating in the circuits of boost, buck, converting converters and converters implemented using SEPIC technology. Without an additional transistor, it is capable of delivering a current of up to 1A to the load. Next, under the number 3, is a working choke for this controller and a diode.
Number 2: Two diode bridges - AM154, also a necessary thing. Working voltage 400V, current - 1.5A. Working temperature - 55 ... + 125C.
Number 4: 1117 series voltage regulator, operating current 1A, input-output voltage drop - 1V.
Digit 5: Sound emitter - KPM1201A8. The maximum current is 30mA, the resonant frequency is 2800Hz.
Number 6: LF amplifier microcircuit - LM386NC in SMD package. With a supply voltage of the microcircuit of six volts, a load resistance of 8 Ohm, an output power of 125 mW at an input signal frequency of 1000 Hz, it has a harmonic distortion of 0.2%.
Number 7: A two-position switch is also a necessary thing.
Digit 8: Sharp transistor optocoupler - LTV817. It is very often found in switching power supplies in output voltage stabilization circuits and in many other modern
schemes.
Digit 9: Electromagnetic relay.
Number 10: Varistors - TVR 07 271. I don’t cite documentation for them, the file size is too large. If necessary, you can find it yourself on the Internet.
In general, it is not so useless, it turned out to be this obsolete box.
A bit of lyrics. As the saying goes, a good owner and a dog's ... will come in handy on the farm. As my beloved grandfather used to say: “Once I walked along the road, I looked - a dog's ... lying around. I picked it up, brought it home, threw it on the heap, and when it dried up, I drove it into the wall in the hallway and now I hang clamps on it. "
Good luck. K.V.Yu.
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Acorp modems are the optimal solution for tasks of any complexity
Eskova Larisa
Yesterday I went to visit a friend: he bought himself a modem and connected the Internet. Now he sits on the net all day and night: he downloads films, communicates with interesting people, and even found a job thanks to the Internet! I returned home and thought: "I also need a modem, how can I choose it?" I weighed all the pros and cons: it is necessary to work quickly, so that you can easily connect and, of course, that the price is right.
The next day I went to look for a good modem, but it was not so easy to understand the details and make the right choice. What kind of modem do you need: internal or external? Should I choose an ADSL modem or a dial-up modem?
What kind of modems are there?
All modems are divided into external (external), which have their own case, and internal (internal), located inside the computer - such a modem is included in a slot on the motherboard.
The main advantages of external modems are mobility, simple connection system. On the front panel of such devices there are special lamps that notify the user about the state of the modem.
More expensive models have a special LCD screen, which displays information about the process of connection and data transfer.
It will take some skill to install internal modems, but such a modem does not take up space on your desktop, does not require an extra outlet, and is cheaper than external devices.
How do ADSL modems differ from dial-up modems?
ADSL technology allows you to use high-speed Internet access and at the same time the telephone line remains free (typical tariff plans of Internet providers for this type of access start at 128 Kbps and higher, up to 2-8 Mbps).
Those users who want to take full advantage of the advantages of high-speed access - the ability to download films, music files, etc. - should think about buying ADSL modems, provided that the provider has installed the appropriate equipment on the PBX.
The main advantages of dial-up modems are the widespread use of dial-up services in the Russian Federation, low cost of Internet access and additional mobility (you can take a dial-up modem with you on a visit).
Acorp's product range today includes modems for any use case: multifunctional external modems, compact USB modems, and low-cost internal modems. Acorp products are the optimal solution for tasks of any complexity.
Acorp modems - modern communication technologies
Acorp has been supplying modems to the Russian market for over 8 years. Acorp products are reliable, multifunctional communication devices built on modern chipsets that provide reliable and fast Internet connection using the most modern communication protocols.
Detailed instructions in Russian, a simple system for connecting a modem to a computer, available software, the necessary drivers and utilities included in the package, as well as a combination of fax, answering machine and telephone in one device are the main advantages of Acorp modems.
Acorp - a guide to the Internet world
The line of Acorp dial-up modems is represented by 2 models of external modems: [email protected] Ext, [email protected] USB + and 2 models of internal modems: [email protected] Prime, [email protected] Soft.
External modems series [email protected]: [email protected] Ext and [email protected] USB + are designed for home, office and mobile use. The compact size of this series of modems allows you to easily use the device for any work: from a business trip to classes in the school library. Thanks to the universal technology USB 1.1 - USB 2.0, these modems can work with any computers with USB support. You do not need to disassemble or turn off your computer - you can install the modem right during operation.
The software supplied with the modem allows you to use the modem as a telephone or answering machine, provided that a sound card is installed on your computer.
Modems series [email protected] in real time, they evaluate the indicators of the state of the telephone line and intelligently make decisions about their own behavior. Voice and fax functions provide the most modern office in the world.
Easy installation of drivers, specially developed utilities for configuration and monitoring, an adapted software package for implementing voice capabilities, free software and driver updates - all this makes external modems an indispensable companion for the modern user.
Internal series modems [email protected]: [email protected] Prime, [email protected] Soft is a budget option with ample opportunities for home and office.
The main advantages of the modems presented in this line are ease of installation ("Plug & Play" system), constantly updated drivers, the most modern connection protocols, as well as a convenient combination of modem, fax and telephone in one device.
Acorp ADSL modems are available in 3 models: [email protected] LAN 100/400, [email protected] LAN 120/240 and [email protected] USB.
ADSL modems allow you to organize broadband Internet access with a maximum downstream speed of 8 Mbps and ensure the use of an ADSL channel by several users at the same time. With built-in Fast Ethernet 10/100 Mbps interface and router functions, the device can be connected to a local network. Models [email protected] LAN120 / 420 support ADSL2 / 2 + standard.
All Acorp modems are adapted for Russian users and have the necessary certificates of conformity. The reliability of Acorp modems is confirmed by the manufacturer's warranty (the manufacturer's warranty period is 2 years).
The line of modems that went on sale since August 2004 [email protected] for dial-up access - the result of 2-year collaboration between ACORP and its Russian partner, MERLION, aimed at creating a fundamentally new product within the framework of the Value Added Distribution concept: full adaptation for the Russian market and a high level of after-sales service.
Acorp Modem Development and Support Center
Leading specialists in modems from different cities of Russia (Vologda, Nizhny Novgorod, St. Petersburg, etc.) were involved in the project of creating a new product. In 2002, the Acorp Modem Development and Support Center was established.
As a result of close cooperation of the Development and Support Center with the modem manufacturer and chip developer, Conexant (USA), special versions of drivers and firmware have become, maximally adapted to the peculiarities and variety of Russian telephone lines. Utilities have also been developed that allow the user to configure the modem for a specific line with the maximum connection quality.
In addition to technical developments, the Center's specialists advise users on installation, configuration, and maintenance of Acorp modems (http://www.acorp.ru/modem/support/). More than 500 requests are processed monthly.
Incoming quality control allowed us to reduce defects to a minimum (less than 1%) and increase the warranty period to 2 years. All models are compatible with ISP equipment.
Acorp modems have repeatedly taken part in tests in popular Russian computer publications, showing excellent results in the tests.
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An article on setting up an Acorp router of the W422G and WAP-G models.
The instruction is given on the example of the Acorp router from the Rostelecom campaign, but it is also suitable for other models and firmware.
Router connection diagram
There are several ports on the back of a W422G or WAP-G router.
If in the future computers will be connected to it using a LAN cable, there are 4 connectors.
The fifth port, located separately from the other four, is intended for connecting an Internet cable (the one that was carried out by Rostelecom or Megaline employees from the entrance). If your computer does not have a Wi-Fi antenna, plug the cord that was in the box on one side into the device, and on the other into the same input of the network card on the back of the system unit.
Configuring the connection of the router to the Internet
After that, turn on the Acorp W422G or WAP-G router, and on your computer, open any browser - a program for viewing the Internet.
In the address bar, type 192.168.1.254 or 192.168.1.1 and press Enter.
We emphasize, not in the search bar, but in the address one.
Usually, by default, these are the words "Admin" and "Admin".
Full configuration of the router is also performed here. To do this, click on the "Setup" tab and then click "New Connection". Then fill in all the fields that appear correctly:
- Name - connection name (any);
- Type - connection type (PPPoE);
- Username - username (provided by your ISP);
- Password - password (provided by your Internet service provider);
If everything is done correctly, save the changes - click on "Apply" and wait for the modem to connect to the Internet, then check its operation using any browser. For a computer, a router acts as a modem.
Setting up a WiFi access point on a router
Wi-Fi is configured on the "Wireless" tab. Select "Serup" on the left. Check "Enable AP" - should be enabled. Next, go to "Security" and select the WPA2 encryption method, and in the PSK String field, enter a combination of at least 8 characters (you will need this code to connect to the modem's wireless WiFi network).
Configuring the Acorp Sprinter W422G modem in router mode
Plug the modem into a 220V socket, connect the telephone cord from the DSL connector on the Acorp Sprinter W422G to the ADSL connector on the splitter.
After a while, the ADSL indicator should blink and then light up with steady light. If the ADSL indicator on the Acorp Sprinter W422G modem does not light up, what can be done in this case.
Press (for example, with a rod from a handle) and hold the recessed "RESET" button on the back of the Acorp Sprinter W422G modem. Wait until the indication on the modem changes, then release the button. This will reset the Acorp Sprinter W422G modem to factory default settings.
Put the network card into mode.
Note for those who like to search for drivers for all new devices: the driver for the Acorp Sprinter W422G adsl modem is not required, since it is a completely independent device that connects to a network card. Drivers may be needed for modems connected to the USB port, and the Acorp Sprinter W422G does not have USB support.
To start configuring the Acorp Sprinter W422G modem, type 192.168.1.1 in the address bar of your Internet browser and press the "Enter" key
A window will appear asking for a password. Enter Admin username and Admin password
Click the "Log In" button.
If everything is correct, then after entering the password you will see the following window: 
The easiest way to configure the ADSL Acorp Sprinter W422G modem is through the Wizard. Press the WIZARD button in the top menu and the following window appears on the screen: 
1. Select the type of connection in the Protocol field. Usually users prefer to configure adsl modems in router mode. In this mode, the Acorp Sprinter W422G adsl modem will automatically serve the computers connected to it, and to access the Internet from new computers, you will not need to change anything in the Acorp Sprinter W422G modem settings. To configure in router mode, select PPPoE.
2. Enter the VPI and VCI parameters to be provided by your ISP.
3. Enter your username and password. They must also be provided by your ISP.
4. Click the "Next" button
On the page that opens, click the "Save / Restart" button. After pressing this button, in no case turn off the ADSL modem Acorp Sprinter W422G, because it will save the entered parameters and reboot. After rebooting the adsl-modem, you should have the Internet;)
For those who like to tinker with more advanced adsl modem settings such as packet filters, port forwarding, dynamic DNS, wifi encryption and QoS, there is a user guide from Acorp. The user manual for the Acorp Sprinter W422G adsl modem is available for download.
Firmware for Acorp Sprinter W422G modem
Acorp is constantly working on improving the firmware of the Acorp Sprinter W422G modem. In each new version, minor errors in the modem operation are removed, and most importantly, the adsl modem operation is optimized and accelerated. Therefore, the firmware of the Acorp Sprinter W422G modem is recommended for all advanced Internet users.
It is best to download the file with the new firmware version for Acorp Sprinter W422G on the manufacturer's website. Choose the version for Annex A / B, because Apparently, this is the version that the Acorp programmers are actively working on.
After you have downloaded the file with the firmware of the ADSL modem Akorp Sprinter W422G and unpacked it from the archive, go to Tools -> Update Gateway in the adsl modem settings.
To update the router software, select the Kernel / File system or Configuration file in the Select a File window, and then click the Update Gateway button.
If desired, here you can also unload the existing ADSL configuration of the Akorp Sprinter W422G modem by clicking on the "Get Configuration" button.
