It's about this key.
Two of these keys broke one after the other. The intercom just stopped responding to them. I went to the key workshop and looked at the prices. 200 rubles for a new key. It was a pity to give me 400 rubles at once. Well, since the keys were broken anyway, and there was nothing to lose, I took apart one of them. There is a lid on one side that you can pick out with a thin tip of a knife. Under the lid, I saw something like the following:
In order not to violate blogging etiquette, I report that some of the pictures are taken from here.
This copper ring is actually a coil of very thin wire (literally 0.05mm) in enamel insulation and acts as an inductor or, if you like, an antenna. In a new vein, this coil is glued to the body. Then the glue for some reason becomes brittle and, for example, when dropped, the antenna peels off, begins to dangle, and eventually the wires going to the contacts on the microchip break:
You just need to solder them in place and then glue the coil to the key body.
I found one end of a coil of wire right away, but I had to tinker with finding the other end. By the way, I advise you to immediately stock up on a magnifying glass.
After 15 minutes of searching for this ill-fated ending, I decided to apply one little engineering trick. I took the adapter. Any slight voltage can be used. I have an adapter lying around with a variable output voltage, from 3 to 12 volts. You can take a battery. Then I put together such a simple scheme:
I tied a copper wire to one pole of the adapter. To the second pole of the adapter I screwed the tip of the coil, which is clearly visible. Before screwing the tip to the adapter pole, burn the tip with a lighter to remove the enamel insulation from it. Plugged the adapter into an outlet. I dipped the wire and the coil into a glass of salted water. Bubbles started from the place on the coil where the second end of the winding broke off. We remember exactly where the bubbles came from, take out the coil from the glass, disconnect it from the adapter, and start scraping the bubbling place with a knife or the tip of a needle until the second tip detaches from the winding 🙂 That's the whole trick. In the picture, I may have reversed the polarity. Well, experiment there. I honestly don't remember what a cathode is, what an anode is, and from which electrode the bubbles should go 🙂
Do not drink water after the experiment. It will contain dissolved chlorine 🙂
Well, then we clean both ends of the insulation with a lighter and solder them to two contacts on the microchip. After that, we drip a few drops of glue onto the body, glue the coil and hammer the lid into place.
Inside there is an inductance coil, closed to a microcircuit. When the key enters the electromagnetic field of the reader, a current begins to flow in the coil, which powers the microcircuit. When power is applied, the microcircuit begins to issue a sequence of pulses to the winding - a code wired into the key.
The contactless key from the intercom is broken. Just stopped working.
Before throwing it out, I decided to disassemble it and examine the insides.
It is disassembled by picking a round cover somewhere along the groove.
Inside we see a winding made of thin copper wire and a microcircuit. We continue to disassemble.
Share the article with your friends on social networks! I would be very grateful to you.
... and you have to get home, then it makes sense to "clean" it with improvised means and repeat the operation to open the front door. Saved more than once :)
One day my intercom key refused to open the door. As a dislike of calling all the neighbors in a row, he brainwashed at the school level of physical knowledge and decided that since he did not work, it was significant that he was demagnetized. It must be magnetized. I remembered that my turnip, among other things, is also suitable for creating static electricity, and “the electric field generates magnetic” - suddenly appeared in my head! No matter how different this reasoning was from reality, the door gave in to me. So it goes.
Vermi, if you are talking about the touchmemory key (tablet), then it has neither power supplies, nor anything magnetic. There is a non-volatile memory microcircuit that is powered and communicates with the intercom controller via the 1-wire interface.
Kulibin, oddly enough, I stood for more than one minute and cleaned in different ways. Didn't help. Yes, it's a pill. Apparently, the hair really acted just like a washcloth :) Thanks for the clarification. But still, why, when looking for an answer to such questions, people often operate with such a concept as “demagnetizing” the key? Here, for example, here and here.
Vermi, a well-established common misconception, that's all. It is even easier for knowledgeable people to say “magnet” so that they can be understood in everyday life, than to explain about the protocol and two contacts through which the key code is transmitted. If, of course, the subject of the conversation is precisely about the principle of work, this information is already fundamental.
The intercom system belongs to modern security support complexes at various facilities where there is a need to restrict access. Due to their simplicity and efficiency, such devices have found wide practical application in apartment buildings. They are installed on the entrance doors in order to restrict the entrance to the building only for those people who have the appropriate intercom key or know the code that is entered through the dialer.
The door is opened by a special lock, which is controlled by an electromechanical system that is triggered if the correct code is entered or the corresponding identifier is used. It often happens that the doorphone reader does not perceive the key, as a result of which the door does not open. What to do in such situations will be described below.
The intercom key is a special device, the basis of which is an independent memory, in which an identifier key is written, which is read by the corresponding module of the outdoor panel.An identifier is a unique code that is a sequence of zeros and ones. When the key is applied to the contact pad of the intercom, the process of reading the identifier and comparing it with those identifiers that are registered in the electronic memory of the device takes place. If the key used is registered for one of the apartments or it is a universal master key, then the electromechanical lock is triggered and the doors are opened. If the intercom key does not work, then the lock will not open and it will be impossible to get into the house.
Today there are several types of intercom keys. The most common are Touchmemory - these are contact devices, the work of which is to transmit data about the recorded identifier to the identifier reading module at the moment of contact.
Another type is based on the use of the Proximity contactless system, with which you can remotely open the doorphone lock. The key of this system is made in the form of a card or a special key fob. Devices of this kind are less common, but have the highest level of security.
If it does not open the key from the intercom, and the reader system does not react to it, then most likely it is out of order. Consider the probable causes of the breakdown and find out if you can fix it at home with your own hands.
The simplest case when the key does not work may be due to the fact that the company that maintains the access systems in your area changed the codes, but did not have time to warn all residents. Since a lot of identifiers from different apartments are registered in the intercom, when some codes are changed, some of the keys stop working.
Another cause of damage is associated with the use of Proxy keys, which include a special chip with an antenna. There are times when the chip and antenna break off, then it will not be possible to open the door. It is impossible to restore the device at home yourself.
The next reason is also related to Proxy keys. The fact is that some of the models use a temporary filter that tracks duplicate keys and writes invalid codes in them. In this case, after a certain time, such a duplicate may stop working.
Touchmemory pill keys can be damaged by mechanical stress or static electricity, which can cause the device's memory to malfunction or not work at all.
VIDEO
If the resistive switch does not work due to the failure of the resistor, then there is no way to repair it at home. You should order new ones that will work with the doorphone reader module.
In the event that the intercom key stopped working due to the fact that it was blocked by a filter or damaged, it is impossible to mechanically repair it yourself. In this case, the problem is solved only by making a new copy from a working intercom key.
If Touchmemory is broken, then it can be restored by rewriting the identifier. This can only be done if the key blank is rewritable.In case of failure of a non-rewritable device, only new keys need to be produced.
When the key from the intercom, which has a reed switch mechanism, is demagnetized, it should also be replaced with a new one. It is impossible to eliminate demagnetization on your own. "
If we summarize the information presented above, we can conclude that it is impossible to fix the intercom key with your own hands. To do this, contact specialized companies to make a copy or rewrite the identifier, if possible.
If you do not open the key from the intercom, but you need to get into the house, then besides making a new key, there are three more ways to open the door.
Use the code that is entered from the dialer and ensures the intercom lock is triggered.
If the code is forgotten, you can open the door with an intercom using special master codes. Each of the intercoms supports special codes, the sequential introduction of which will allow you to open the lock. The list of these master codes is individual for each specific doorphone model.
Reprogram the intercom. This procedure can only be used if the administrator or dophone installer password is known. The use of these codes will allow you to enter the setup and configuration mode of the electronic unit, as a result of which the device can be reprogrammed for other codes to enter and open the door.
Use a master key. The easiest way to open the door when the intercom is not responding is to use special universal keys. All intercoms are equipped with such master keys. They are also available in those organizations that serve this kind of systems and installers who specialize in the installation of intercoms.
If there is a problem that the key does not open the door lock, which is equipped with an intercom, then the best solution would be to immediately seek help from specialists. Trying to repair and restore keys yourself at home is impractical, since it will only end up with wasted time. Experts will be able to immediately determine the cause of the breakdown and quickly, at an affordable price, make a workable copy that will work successfully with the electronic intercom system.
Now it is already difficult to find a house whose doors are not protected by a special system. This wonderful device warns against uninvited guests. But what to do if you forgot your magnet at home, or it stopped working. If this happened during the daytime, you can wait for the neighbors to open the door. And if at night? How to open the intercom without a key in this case? We have collected the best tips for solving this annoying problem, depending on the make and model of the doorphone. Use it!
An intercom system is a security measure that is used to protect against strangers. It is used to communicate between the guest and the owner and is installed in suburban and apartment buildings or offices.
With its help, you can solve a wide variety of tasks:
the simplest system will help organize the entrance of clients to the organization or guests to private accommodation;
organize a more complex system with video surveillance and the ability to record the history of events;
additional covert surveillance device.
For all the time that intercom systems have been used, no one doubts their effectiveness. The issue of choice is a financial issue.
The device is quite simple and consists of only a few components:
block for calling a subscriber ... It is presented in the form of a panel, protected from dust and moisture;inner zone, which includes intercom (call key, microphone and loudspeaker) and door station ;
latch lock ;subscriber complex ... It is made in the form of a tube and is installed in the owner's apartment or at the reception in the office. It contains: a control button, a microphone and a speaker;magnet with a chip .The intercom can be supplied with an audio or video signal.All elements are connected through a switch.
The door communication device works by analogy with the relay connection as follows:
the guest presses the "Call" button on the external panel;
contacts are closed, the signal goes to the owner's subscriber complex;
the host of the receiving device presses a button to negotiate;
at the decision of the owner, he can unblock the entrance system by pressing a button or refuse to accept it.
Manufacturers initially set a password to open the door mechanism. When installed at the request of the owner, it can be replaced either on the remote control of the main unit or through software.
If you didn't have a magnet with you, or it stopped working, you need to contact your familiar neighbors. You just need to dial their number on the device and explain this trouble. If they are at home, they will certainly provide access to the entrance.
But this situation does not apply to all cases of life. For example, devices are not installed everywhere. Or the systems are turned off. In this case, you can knock on the neighbors' windows on the ground floor. The owners will understand the huge problem and help unlock the system.
And if you are the owner of a private house, and you simply do not have neighbors? Or another option - you returned at night, and it is simply indecent to call someone? Code should be used in this situation.
No need to try to forcefully enter the staircase or break the dashboard. This will not help unlock the lock. In addition, in this case, the doors will not be unlocked from the inside, and you will have to pay for the repair of both the doors and the intercom system. Even administrative penalties for petty hooliganism can be applied.
Several key options are available for modern intercom systems. Their main task is to open an entrance lock with installed security control. All of them are programmed with a specific factory code. If the firmware has been changed during operation, then only the service department will be able to help unlock the system. After their intervention, it will be necessary to re-program the device.
Firms that program locks use a special technology for opening devices:
contactless;
tablet chip;
all-terrain vehicle;
universal key for the intercom.
With the help of the latter, you can open up to 95% of the models. It is convenient to use, as it can be used to quickly solve the issue of opening doors. It is these devices that are used by workers of service organizations or postal workers.
A key called "all-terrain vehicle" can also be referred to as universal. Utility workers do not have to carry large bundles of chips with them. It is enough to have one universal. The software device is located in the chip; it is enough to attach it to the contact located on the input panel.
There is another way to open intercom devices using a universal key - a contactless master key. For this, it is not necessary to apply it to a contact on the panel. The principle of operation is at a distance. She has one significant drawback - high cost.
Such a device is easy to implement for someone who is familiar with programming and has the skills of a radio engineer. You need to know the name of the model. Information about which blank will work can be found on the Internet. There are also tables for matching duplicator and blanks.
Manufacturing of a new device takes a few seconds. For this you need an “emulator” device. This is a device that opens almost all intercom systems, with a few exceptions.
But even the most professional craftsman, the best software and emulator may not be able to handle some devices. Personal settings of the emulator for a certain version are required, then the cipher will be easily matched to this model.
An excellent solution to the problem of how to open any intercom is a password. It is set in the firmware.It should be checked with the workers who installed the intercom device, or found on the Internet.
The same code is suitable for many devices from different manufacturers. This applies to devices Vizit Eltis Cyfral
It is important! The password included in the intercom program works even if it is deprived of a memory card.
In most cases, if the codes are programmed by the manufacturer, passwords can work in all cities. Sometimes intercom systems can be encrypted by the installer. Then you need to ask them for a password. In any case, services that require systems to open on a daily basis, such as postal workers, have the code. You can ask them for the password from the intercom device.
Next, we will show you the codes for opening the intercom without a key for the most common models.
This is the most common system. If the original firmware has not changed, the algorithm of how to open the "Vizit" intercom is as follows:
For new devices "Vizit" will suit:
You can use the following codes to open the "Vizit" intercom without a key (suitable if it has not been opened before):
# 999 — double ring, then service panel code 1234. If this dialing does not work, there will be a double beep. If all is well - one beep.
If the service code is incorrect, we do not dial 1234, but the following options:
To determine whether the code is correct or not, a dial tone will help: if it is incorrect - 2 beeps, for a correct one - only 1.
When the menu has worked with one call, you need to add your own code:
to operate the lock: 2 - pause - # - pause - 3535;
then you should add your own password: enter the number 3 and lean the chip from the panel, then # and wait for the sound of the lock.
Important! Remember to delete all settings from the service settings memory. To do this, press 4 # *.
The manufacturers of these models often do not publish their information in the public domain. There are only three known sequences:
To include your password in the service settings, you must enter:
77395201 + * +0 *, lean the chip against the device and press # twice.
If this sequence did not work, you can dial 5755660 instead of 77395201.
These are the most modern intercom models. If you do not know how to open the Cyfral intercom without a key, then you should perform the following algorithm. It will work if there are apartment numbers at the entrance, which are divisible by 100.
To open the Cyfral system, press:
"B", apartment number, which is divided by 100, then again by "B" (for example, В400В);
then 2323. If it didn't work, instead of 2323 press 7272 or 7273.
The question may still arise, how to open the "Cyfral CCD2094" intercom. It opens a little differently:
Call, then 41, or 1410, or 07054.
If the system did not work, you should continue in this way:
"Call", then 0000.
if we hit the "Menu", but the doors are still closed, you should press the number 2.
If there is a problem, how to open the "Cyfral CCD 20" intercom, all the methods listed above are suitable for solving it.
It is quite difficult to work with this system without a chip. The password may not work for all devices. The algorithm of actions is as follows:
Alternatively, we enter not 7273, but 2323.
Another way to open the "Eltis" intercom without a key: the method used for the "Cyfral" model will do.
Factorial models can be opened by dialing 000000 or 123456. Alternatively, dial 5 and hold until a text message appears on the dashboard. Then you should enter 180180 and "Call".
This is the rarest device in terms of keyless encryption. The procedure is as follows:
К - 100 - 789 - short beep - 123456 - 8;
К - 170862 - short beep - 0.
Unfortunately, there is nothing to help in this case. These are not driveway intercom systems, but individual ones, which are produced for individual houses or houses with a concierge. There is no universal code for such a system.Please contact the service department for assistance.
This is a rather rare model. To open, you need to dial:
"C", beep, code 669900 and "Call", then the number of the last apartment in this entrance + 1.
The display should show the inscription "F-". We get into the service settings. After that, you need to perform the following algorithm:
080 - open the lock;
333 - remember password;
071 - disable automatic blocking.
For this model, the following algorithm should be performed:
on the panel press "Call" or "Call", enter 00000, twice on "Call".
All actions should be performed at maximum speed, otherwise the intercom device will not work.
To trigger the device, you need to dial:
"Key", code 987654. After the call, dial 123456.
If everything is correct, we are in the service menu, the P icon will appear on the board. To unlock and open the lock, press 8.
The following will work for this device:
"B" (CALL) - the number of the first apartment in the entrance - "B". “COD” appears on the panel. Further 5702;
65535 - "B" - 1234 - "B" - 8;
1234 - "B" - 6 - "Call" - 4568.
The following combinations are suitable for "Metakom-20 M / T":
"B" - 27 - "B" - 5702;
"B" - 1 - "B" - 4526 - then, for programming, lean a clean key (not previously programmed) against the dashboard.
The proposed options, how to open the door without the intercom key, can be used if the manufacturer's primary parameters were changed during installation. In addition, it is important to know which manufacturer's device is installed in the house. The use of these algorithms can be used in the rarest of cases; their use in selfish motives can be criminally punishable.
In this video, professionals share tips:
• common misconceptions
Here are collected your favorite questions about access keys, given basic knowledge about the types of keys, as well as common misconceptions, myths and legends from this area. Feel free to ask questions, friends.
Answer: Yes, you can. The key can be registered in any quantity compatible with it intercoms or controllers.
More details: Many people think that when programming the key, some kind of record is made in it, and if the key is programmed in the entrance doorphone, then the key is no longer empty and cannot open another doorphone, for example, at work. And if this key is registered at work, then it supposedly will stop opening the intercom at the entrance. In fact, in the process of programming, nothing is written into the key itself.
Where do the doubts come from then? Many have probably come across the fact that the key from one intercom does not fit another intercom. But this is not at all due to the fact that the key is already "taken". It's just that a key of the same type (for example, Cyfral), in principle, is not compatible with other intercoms (for example, Eltis), even if this key has not yet been registered anywhere.
Answer: No. The intercom key cannot be demagnetized. But it can fail for another reason.
More details: Access keys are called "magnetic keys" or simply "magnetic keys" by mistake. There is nothing magnetic either in the intercom "tablets", or in the access cards, or in the key fobs. Accordingly, they themselves do not magnet and are not afraid of ordinary magnets. I tried to "demagnetize" the EM-Marine format card and the Dallas touch memory key with a powerful neodymium magnet, but both the key and the card were fully operational. They didn't even stick to the magnet. Of course, a key, like any electronic device, can be disabled by powerful electromagnetic radiation, for example, in a microwave. Throw a card at Orodruin with about the same success.
Where do the doubts come from then? At one time, it was magnetic keys that were used in access control systems. Even now, the entrance to some banks is provided by a bank magnetic card. By the way, you can demagnetize a bank magnetic card.
Keys often fail. "Pills", for example, are killed by static electricity. Carrying your contactless card in your back pocket will cause the card to crack and stop working on regular squats. Most often, it is this ailment that is called "demagnetization". When a failed key is brought to a technician or administrator, he does not "re-magnetize" it, but gives a new one.
From frequent use, contact keys of the "tablet" type are recessed in the holder and stop contacting the reader. Here, too, there can be no question of demagnetization. Just push the pill in the opposite direction ↓
Contact keys. Official name Touch memory (abbreviated TM) or iButton. Common name: "pills". The TM key code is transmitted over one pair, this transmission protocol is called "1-Wire". And about the sad thing - about incompatibility. There are several formats for TM keys:
Dallas. In most cases, TM refers to a key from the Dallas family (for example, DS1990A). Many devices work with these keys: Vizit, Eltis, Z-5R, S2000-2, etc.Cyfral. These intercoms work only with DC2000A and Tsifral-KP1 keys.Metakom. Keys K1233KT2 have been developed for these intercoms. These keys work for many other controllers as well.Resistive. There are exotic intercoms that work with resistive keys. Instead of a code, resistance is read from them. No doubt these are contact keys, but I would not call them Touch memory.Proximity keys. Official name RFID ... Produced in the form of cards, key rings, bracelets, etc. The common name is "cards" and "drops" (key rings). Keys operating up to 10-15 cm are called Proximity (short-range), and those operating up to 1 m - Vicinity (long-range). In intercoms, only Proximity keys are used, and this term has become almost synonymous with a "proximity key".
In the world of Proximity, there is also no uniformity of formats:
EM-Marin Is the most popular format today.HID - an aksakal among contactless keys.MIFARE - a promising format. This is what contactless smart cards belong to.Magnetic keys. Exotic. But magnetic bank cards still provide access to some banks. Were not seen anywhere else. By mistake, magnetic keys are often referred to as TM and RFID keys.
Optical keys. A relic that is irrevocably a thing of the past. They were used in domestic intercoms at the turn of the 1990s. The optical key is a metal plate with holes drilled in it in a certain order. For reading, the key was placed in a slot with photocells. There could be no question of authorization, the controller only evaluated the key according to the “friend / foe” principle, having absolutely no idea who provided it - the residents of the entire entrance had exactly the same keys. In addition, such an intercom was successfully opened with a flattened belomorina.
Answer: A clone is a copy of another key. A stub is an empty key (does not contain any code) for creating a clone. While the blank is empty, it cannot be written into the controller's memory.
More details: In the usual way, the code is stitched at the factory.You can write any code into the workpiece yourself using a special device - a duplicator. It is the blanks that are used in key making workshops when you ask to copy your "tablet". The copied key is called a clone or duplicate. All those intercoms that opened with the original key will greet his clone as their own. The exceptions are intercoms with a clone filter.
The blank should not be confused with a regular key that has not yet been registered in the controller.
Blanks can be recordable and rewritable in full analogy with CD-R and CD-RW discs, respectively. There is even a term “finalization”.
If you have many clones of the same key, then it is enough to register any of them in the controller memory. All clones and the original will acquire the same access rights in this controller, since they will all look the same for him. With no clone filter.
In time attendance systems, all clones will be registered under the same surname.
By mistake, a blank key is often called a regular key, which has not yet been registered in the controller.
Key cloning has been associated with a long-standing war between doorphone manufacturers and blank manufacturers. The former come up with new ways to filter and ignore clones, the latter are looking for ways to bypass the filtering. The end and the edge of this war is not visible.
Security Question. By answering it correctly, you will be sure that everything is clear with the blanks.
Answer: The master key does not open the door by itself, but allows you to add opening keys to the controller.
More details: Do not assume that this is a special key format that must be purchased separately. Just a controller introduced into a special mode , an arbitrary key is taken from the purchased armful and is written into the controller's memory in the same way as simple keys, and then the tag “Master. Do not give it to anyone! " For the controller, the difference between a regular key and a master is only in the fact that the status “Master” is assigned to its code in the memory cell. Note that no electronic mark “Master” is entered into the key itself. And he will be a master only for this controller. For another, unfamiliar with this controller key, our master will be nothing. I will say more: the same key can be a master for one controller, and a simple opening key for another. Controllers will not even know about such duplicity of this key.
Where does this question come from? Some units come with a factory-recorded master key to facilitate commissioning. But in most cases, it remains possible to register a new master key if the factory key has been lost.
Answer: The owner of the blocking key can enter the room himself, but after the passage, access to the room for everyone else will be closed. The door can be opened with this or another blocking key, and the blocking will be released. Also, the lock can be removed with a master key.
More details: "Blocking key" - key status provided in some (not all!) Controllers, for example, in Z-5R.The key is written to the controller as blocking if the controller is in the block-key adding mode. There were cases when the blocking key was created by accident (before the key was written, the controller was mistakenly entered into the wrong mode) and was issued to one of the users. Honest people could not understand in any way why access to this or that door periodically disappears. At the same time, the happy owner of such a key about the problem is neither sleep nor spirit. All the doors are open to him!
Why is this at all? For example, the director wants to be alone with the secretary in his office. I attached the block key, went into the office and was sure that no one would bother me anymore.
Answer: Truth. A universal (within certain limits!) Key can be created.
More details: There are several completely different ways to create a generic key.
Answer: This is a memory module for copying and transferring all keys from one controller to another. Like a USB flash drive, only it looks exactly like a DS1990A pin key. And it is called DS1996 (L).
More details: Some controllers provide a mode for transmitting all recorded codes to the memory module and a receive mode. This is convenient for transferring keys when replacing a controller or for writing keys if several controllers are installed on the site and all users have the same access level. The capacity of the memory module is 64 kilobits. It is easy to calculate that with the volume of one code of 64 bits, exactly 1024 keys can be written into the memory module.
Generally speaking, keys are stored in the controller's memory. The controller can be either a separate device hidden from the user's eyes, or built into a calling device or a reader, and then it is, as it were, in plain sight.
Controllers as separate devices: Z-5R, Gate, VIZIT KTM600, S2000-2, S2000-4, KTM-255, etc.
Controllers combined with the Control Unit: VIZIT BUD-3xx and VIZIT BUD-4xx
Controllers built into the Call Panel: VIZIT-K100, VIZIT-K8, BU-K100, BVD-SM1xx, BVD-N1xx, BVD-M2xx, BVD-C100TM, BVD-8M100, BVD-407x, some Cyfral and Eltis outdoor panels
Controllers built into the reader: VIZIT-KTM40, VIZIT KTM-602, MicroProx
Question about Burgundy Keys Visit. I have a TMD 5 - Rfid device. I read on the forums that the burgundy keychain is Mifare. I got into my hands and TMD 5 was able to read the code. There was no way to write it down. Tell burgundy keychains are not all Mifara? are there ordinary rfids too?
I don't know how strict Vizit is about color-coding.
There are many more different types. Resistive, NFC, stops.
multi-code can be written to rw1990
... his RFID intercom in which zeros were hammered opens most of the doors in his area.
Apparently, it is not the intercom that opens, but the key?
Good day!
Information on the compatibility of blanks with intercoms is posted on the manufacturer's website.
Hello, I have a question about keys like "proxi, em marin, dallas cyfral" I bought myself a "TMD 5-S" , and there is a similar key from work (between offices), so I can't figure out how to combine the key from home and from work, on one rewritable disc (I manage to write down either from home or from work) Thanks for the answer)
Two different keys cannot be copied to a blank. Only one.
Video (click to play).
Specifically, it is impossible to add to this? Or maybe there are options?
