Older smart card reader ?

Motoapco25 · Post by **Motoapco25** » Sat Aug 25, 2007 3:12 am

i had purchased a older Respironics card reader off off Flea bay and i cant figure out how to make Encore see it. its a Serial model but it has what looks like a power jack on the back of the serial plus anyone know if thats whats wrong that it has to have a DC input ?

Snoredog · Post by **Snoredog** » Sat Aug 25, 2007 3:35 am

if it is the RS-232 type it will have a PS2 style keyboard adapter along with the DB-9 connector, you have to plug that PS2 plug into the keyboard port then plug the keyboard into the adapter.

It supplies power from they keyboard port to drive the Card reader. The newer USB type get their power from the USB port.

The card reader needs 5-volt DC to operate.

Motoapco25 · Post by **Motoapco25** » Sat Aug 25, 2007 5:16 am

thats what i got didnt get a PS2 cable with my luck its useless lol

Goofproof · Post by **Goofproof** » Sat Aug 25, 2007 11:12 am

At under $30.50 for the correct DT-3500, how much $$$ did you save for one you may never get to work? It pays to get the real one. Jim

Snoredog · Post by **Snoredog** » Sat Aug 25, 2007 11:44 am

NOPE that is NOT the PS2 style, you have even a different style, I would hunt around for a 5VDC power supply and plug it in that power port next to the cable, that is what it is for 5VDC power.

USB hubs use a 5VDC power supply, put on your glasses and look at some of those power supplies you may already have. The center "pin" is (+) positive.