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Thank you for buying this SpringCard TwistyWriter (serial) Coupler. In order to start to use it quickly, we advice
you to follow the instructions of this Guide. The detailed instructions, the associated software and
documentations, as well as the last version of this Guide are available online at address
www.springcard.com/en/products/twistywriter-ttl-twistywriter-232-twistywriter-485.html
Precautions for installation
The SpringCard TwistyWriter (serial) Coupler communicates with contactless cards, tags or any other objects
by the mean of RFID/NFC technology in 13.56MHz range. RFID/NFC works thanks to short distance radio waves
that propagates on a straight-line (magnetic field).
These radio waves can't travel through metal. The coupler's operations may also be disturbed because of other
active devices in the nearby. Please respect the following rules when installing your SpringCard TwistyWriter
(serial) Coupler.
The antenna shall not be installed in the vicinity of any other RFID or NFC reader, even from another
manufacturer or technology. The distance between two readers shall be at least 30cm,
The distance shall be at least 5cm between the rear of the antenna and any metallic or conductive
area located behind the antenna. The distance shall be at least 3cm between the sides of the
antenna and such an area in the nearby,
Do not place any metallic or conductive area in front of the antenna,
Keep away from any electronic equipment or communication cable that is likely to disturb the
communication at 13.56MHz,
A small coaxial cord links the antenna to the coupler's main board. Check that both sides of the cord
are plugged correctly. Make sure that the cord is mechanically tension-free and that it can not be
damaged by a sharp edge.
Connections
Connect Antenna's RF (J1) to Main board's RF (J8) using the 15 cm 4-wire cord (supplied).
Position of the switch
The product has 1 micro-switch (SW1) :
Meaning when OFF
SW1
Operation mode
The TwistyWriter (serial) can not be plugged as it is in your devices you need to use an interface.
SpringCard offers a wide range of interfaces that you will find here:
If you need advices on the type of interfaces you need contact us at:
HARDWARE SETUP
https://www.springcard.com/en/products/serial-interfaces
Meaning when ON
Flash mode (firmware upgrade)
support@springcard.com
PMU18289-AA 4/8
Default
OFF
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