Dallas Ds1990A Ds1990 F5 Serial Number i. Button | RFQ Sourcing Details
Network Video Decoders · Quote on request
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Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Network Video Decoders. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
Description The TM1990A-F5 electronic i. Button key with unique 64-bit code is a full quality analog of Dallas/Maxim DS1990A-F5 i. Buttons. Designed for access control systems each key has a unique family code that is recorded while the key is being produced and the code cannot be overwritten.
While manufacturing such devices in the factory, the number is directly assigned directly to the production line. Each TM1990A-F5 is assigned a unique identification code consisting of numbers and letters. The approximate number of combinations - 4 billion.
Therefore the chance to guess the key from the entrance is practically zero. The key contains a number. It can not be charged or magnetized. But it can be stored in the memory controller, which controls the door to the entrance or office.
When you touch the ibutton reader with a TM1990A-F5 key, it reads this code and passes it to the controller, which checks with the internal memory for its presence in the database.
If the identifier with the code is found, the access rights are checked (in some systems there may be time constraints) and give the actuators (locks, latches, latches or relays) the command to open/close. The main advantages of TM1990A-F5: Electronic keys provide 100% uniqueness.
The use of such tablets can significantly reduce the cost of programming a large number of keys for staff. TM1990A-F5 is for use as a workpiece for copying is not intended. (To copy the DS1990A and TM1990A keys, use our RW1990 copy i. Buttons).
Key Features Overwriting to the controller memory a huge number of times;Manufactured on the basis of high-quality and durable magnetic media;The devices are compact and light in weight;Can be used in any working position;Average service life 10 years;The eyelet holder is made of plastic;Work at any temperature;Instant reading: instantly transmits the code to the reader;Low cost;Work with the Door ing devices Door intercommunication systems Security systems Access control systems Automated engineering systems (control) Fire alarms Working time recording systems
Dallas | Applications and Buyer Notes
Dallas is organized as a sourcing-ready Network Video Decoders reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time que
Applications
- Initial shortlist building for related product or supplier options.
- Specification and application fit review before bulk purchasing.
- Category, keyword and detail-page comparison before sending an RFQ.
Key specifications
- Category
- Network Video DecodersBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Type
- Memory CardBased on visible page data; confirm exact value in the RFQ.
- Origin
- ChinaBased on visible page data; confirm exact value in the RFQ.
- Function
- Identification, Encrypt/Decrypt, InformationBased on visible page data; confirm exact value in the RFQ.
- Material
- ABSBased on visible page data; confirm exact value in the RFQ.
- Frequency
- MagneticBased on visible page data; confirm exact value in the RFQ.
- Model NO.
- TAG003Based on visible page data; confirm exact value in the RFQ.
Buyer tips
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FAQ
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Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
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Key specifications
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