RFID Problem

Hi.
I have a problem with RFID reader which I ordered from SeeedStudio.
I connected it to arduino serial RX pin and also I used SoftwareSerial but the result is the same. Arduino receives only 255 value.
like this:

I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255
I received: 255

here is a code:
int incomingByte = 0; // for incoming serial data

void setup() {
Serial.begin(9600); // opens serial port, sets data rate to 9600 bps
}
void loop() {

// send data only when you receive data:
if (Serial.available() > 0) {
// read the incoming byte:
incomingByte = Serial.read();

// say what you got:
Serial.print("I received: ");
Serial.println(incomingByte);
}
}

The same is when I use another method - SoftwareSerial on pin 2.
Any Idea what can be wrong?

OK. My problem is related to RFID interface mode. I bought Wiegand model, not UART. My mistake. :-/

I used a Wiegand RFID module (in fact three of them) in my project:-
http://www.thebox.myzen.co.uk/Hardware/Crazy_People.html

So the code to read them is on that site if you want to see how I did it.

The problem might be that you do this: "int incomingByte = 0;"
an integer is in this case 2 bytes, but you probably wanted only one byte. So try changing the int into unsigned char.