Electronic Touch Memory iButton Key Tm01 Compatible to RW2000 RW2004
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Electronic Touch Memory iButton Key Tm01 Compatible to RW2000 RW2004

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Product Description

Electronic Touch Memory iButton Key Tm01 Compatible to RW2000 RW2004


Electronic Touch Memory iButton Key Tm01 Compatible to RW2000 RW2004  
Electronic Touch Memory iButton Key Tm01 Compatible to RW2000 RW2004
Overview of  TM Key Card  
 


The basic principles of TM cards: A TM card is similar to a button battery in shape and can be inlaid into a card, key button and other objects.


You can replace the data line, address line, control line and power line with a single line so that TM card achieves single line communication through a multi-function device. When the host is powered, TM card gives the response to the host through switching the impedances between 50Ω and 500,000Ω. The lengths of time the signal is pulled down(long or short) show the digital logics(long=1, short=0). Due to the range of witching impedances is 1-10,000, the resistances of the contact points will not affect the identification of the digital signals.

According to whether the Memory in TM card is encrypted or not, TM card can be divided into encrypted TM card and non-encrypted TM card.

Product Parameter

Item

TM Ibutton Card

Material

ABS + Stainless Steel

Size

ibutton size: 17mm*6mm

Color

Red, green, blue, yellow, black, etc

Working Temperature

-40 ~ +85 degree

Read-Write Method

Contact

Memory

64 bits

ID number

Engraved

Chip

RW1990, RW2000, RW2004, DS1990A-F5, TM1990A-F5, TM01

Application

Intelligent Community, Postal Service, Railway St, etc.


 


 


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