FAQ - Magnetic Encoders and EZWriter

Owned by IT-ADMIN G (Deactivated)

Last updated: Jan 26, 2024 by Yan Mu

4 min read

Product: Magnetic Encoder Model 3840(Reader/Writer)

1 1. How do I connect the unit to the host computer?
2 2. How do I verify the functionality of the Reader/Writer?
3 3. I have an IDT3840 encoder, but my PC does not have a free COM port, is there a way to use it through a USB port?
4 4. What should I do when I get a 'Write card error' by trying to write a card?
5 5. Why the Hi-C and Lo-C options are grayed out in the utility program?
6 6. Why do I get the 'Read card error' message but the data appears correct when I read a card?
7 7. Why is there no response in the utility program when I try to read my credit card?
8 8. Why are there extra leading & ending characters when I read a card just encoded?
9 9. My application does not like the sentinels to be sent with the card data, how do I get rid of the sentinels?
10 10. How do I encode the Enter or Tab functions key on the card?
11 11. I am developing my own application. I can send the command to turn on the LED lights, etc. However, I kept getting an error response when sending the sample write command code from the appendix section of the manual.
12 12. What should I do when I get a communication Error or o MSR106/206 found or not find Reader/Write?
13 See also:

1. How do I connect the unit to the host computer?

For the RS-232 interface device, plug the 9-pin cable into the available COM port on the host and then power it up using the power adaptor provided.

For the USB serial interface device, plug the USB-A cable into a USB port on the computer side and then power it up using the power adaptor provided.

2. How do I verify the functionality of the Reader/Writer?

Launch the EzWriter WorkShop Utility program with