Manual

DB-9 connector

USB, serial, etc. port

External coupler

USB or parallel port

>>Contact station interface

Printers with a smartcard contact station are tted with a female DB-9 connector which

is found on the back of a printer. This connector, directly connected to the contact

station inside the printer, is also connected to an external coupler to program the chip. A

sequence of commands must be sent via the printer’s interface to insert a card into the

printer then position it under the station and establish contact.

DB-9

connector pins

Smartcard contact points

1 C1 (V c.c.)

2 C2 (reset)

3 C3 (clock)

4 C4 (reserved)

5 C5 (ground)

6 C6 (Vpp)

7 C7 (I/O)

8 C8 (reserved)

9 C9 (ground when the chip is switched with the contact station)

A sequence of commands must be sent via the printer’s interface to insert a card into the printer then position it under the station and

establish contact.

>>The command sequence is as follows:

Sending the SIS sequence :

• A card is moved from the feeder to the contact station, and stops underneath it.

• The card is pushed upwards to make contact with the station.

• The printer connects the contact station to the DB-9 connector.

• The chip is programmed via the computer’s serial interface and the external coupler.

Refer to the ExpressCard 500 Programming Guide for further details on programming smartcards.