MAGTEK 21045002 MagStripe card reader.
Single Track, only reads Track 2
2.7 to 5.5VDC
When no card is present all pins are high.
When a card is present pin 5 goes low and remains that way for 140ms after the entire card has been read.
| Pin | Color | Signal |
|---|---|---|
| 1 | Red | Vcc |
| 2 | Black | GND |
| 3 | Orange | DATA |
| 4 | Brown | STROBE |
| 5 | Green | CARD PRESENT |
| DATA | SIGNAL |
|---|---|
| HIGH | 0 |
| LOW | 1 |