Data Sheet

Table Of Contents
Coupler - Reference manual
RM 22
Version 1.2
SELECT_CURRENT_KEY
Use
This function allows to choose a key for future authentications. A key that has been
deactivated or deleted cannot be selected. Only one of the 16 keys can be current at the
same time.
Prototype
" Command sent : 52h
" Command type : ISO In
Host
80h 52h 00h P2h 08h 8 * 00h
Coupler
52h 90h 00h
Parameters
P2 : Key number
01h - Debit Key Kd0
02h - Credit Key Kc0
03h - Debit Key Kd1
04h - Credit Key Kc1
.....
0Fh - Debit Key Kd7
10h - Credit key Kc7
Remark: if the specified key is deactivated, the status bytes returned is 6Bh 00h.