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Magnetic iButton DS1990/RW1990
Overview of Magnetic RW1990/TM1990 card
Toptag TM Card Lock adopts U.S. DALLAS company patented technology In formation Button (information button, also known as iButton) as a key. Contact with the lock with a light touch, the lock can be unlocked; Convenient operation and RF card operation; Easy to use, reliable, Cost efficient with contactless IC card, and free of electromagnetic radiation.
| Material | stainless steel+ ABS holder |
| Size | 16.25*5.89mm |
| N.W. | 5g/pc |
| Chip | DS1990/TM1990- read only RW1990-programmable |
| Application | Most used for Access control for high class office building, apartments, community etc |
Features
Can Be Read in Less Than 5ms
Operating Range: 2.8V to 6.0V, -40°C to +85°C
Applications
Access Control
Work-In-Progress
Tracking Tool Management
Inventory Control
Common iButton Features
Unique Factory-Lasered 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Traceability Because No Two Parts are Alike
Built-In Multidrop Controller for 1-Wire Net
Digital Identification by Momentary Contact
Data Can Be Accessed While Affixed to Object
Economically Communicates to Bus Master with a Single Digital Signal at 16.3kbps
Button Shape is Self-Aligning with Cup-Shaped Probes
Durable Stainless-Steel Case Engraved with Registration Number Withstands Harsh Environments
Easily Affixed with Self-Stick Adhesive Backing, Latched by its Flange, or Locked with a Ring Pressed Onto its Rim Serial Number iButton
