User`s guide

Interface of the Contact Station

The Dualys Smart is fitted with a female DB-9 connector on the back of the printer. This connector,

directly linked to the contact station inside the printer, is also connected to an external coupling to

program the chip.

DB-9 connector pins Chip contact points

1 C1 (V c.c.)

2 C2 (reset to 0)

3 C3 (Clock)

4 C4 (reserved)

5 C5 (Ground)

6 C6 (Vpp)

7 C7 (E-S)

8 C8 (reserved)

9 C9 Ground when the chip is commutated to the station

A command sequence must be sent via the printer interface to insert a card in the printer and then

place it under the station and establish contact.

The sequence of commands is described as follows:

Sending the Sis sequence = A card is moved from the feeder to the Contact Station and stops under it.

The card is pushed up to come into contact with the station.

The printer links the contact station with the DB-9 connector.

The chip may be programmed via the series interface of the computer

and the external coupling.

NOTE !

See the programming guide of the Dualys printer to obtain more complete information

concerning the programming of smart cards.

Printer

interface

External coupler