TM iButton Ds1990A-F5 Reader for ID Number

• Read-Write Method: Contact Type
• Installation: External (634)
• Card Slots: Single
• Interface: USB
• Type: iButton
• Material: ABS
• Function: Information, Encrypt/Decrypt, Payment, Identification
• Structure: TM1990.Ds1990,RW1990
• Data Transmission Mode: Serial
• Application Field: Taxi Management, Tool Management, Community Access
• Transport Package: Each 1PC in a Box
• Specification: 116*77*17mm
• Trademark: OEM
• Origin: China
• HS Code: 8523521000
• Production Capacity: 3000000 Per Month

Product Description

       TM1990 DS1990 RW1990 ibutton key reader 

1. It is responsive and the response time is < 0.1 seconds
2. It can automatically read the TM ID number and save it in TXT, WORD, EXCEL files, which is convenient and quick to use.
3. The USB cable is equipped with an anti-interference magnetic ring and oxygen-free copper wire for fast and stable data transmission.
4. It is a USB interface, compatible with Windows operating system, no driver required, plug and play
5. The reader has a hole in the back panel for easy wall mounting.

Size	116*77*17mm
Reading Speed	<0.1 seconds
Reading Method	Touch
Interface	USB
Support	Excel,Word,txt
Function	Read ibutton ID number
USB length	120 cm
Application	Taxi management, tool management, community access control and property security, industrial and mining management, etc.

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.

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