60
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Co nta c t sta tio n inte rfa c e
Printers tted only with a smartcard contact station (without integrated encoder)
are tted with a female DB-9 connector which is found on the back of a printer.
This c o nne c to r, d ire c tly c o nne c te d to the c o nta c t sta tio n insid e the p rinte r, is a lso
c o nne c te d to a n e xte rna l c o up le r to p ro g ra m the c hip .
A se q ue nc e o f c o mma nd s must b e se nt via the p rinte r’ s inte rfa c e to inse rt a c a rd into the p rinte r the n p o sitio n it und e r the sta tio n a nd
e sta b lish c o nta c t.
DB- 9 c o nne c to r pins Sm a rtc a rd c o nta c t points
1 C 1 (V c .c .)
2 C 2 (re se t)
3 C 3 (c lo c k)
4 C4 (reserved)
5 C 5 (g ro und )
6 C 6 (Vp p )
7 C 7 (I/ O )
8 C 8 (re se rve d )
9 Ca rd p re se nt sig na l
C