SCR331-DI Product Technical Manual
SCR331-DI SINGLE SLOT FIRMWARE LED STATUS
LED States
LED1 (GREEN)
LED2 (RED)
Just after plug-in (with drivers
already installed)
ON
OFF
Just after DFU operation
ON
OFF
Suspend / standby
OFF
OFF
Reader powered, Contact card IN,
but not powered (98/ME - issue
power down using the
Testresman utility)
500ms ON
500ms OFF
OFF
Reader powered, Contact card IN,
but not powered (2K/XP - power
down takes place )
ON
OFF
ICC Powered / Communication
500ms ON
500ms OFF
OFF
PICC Powered / Communication
ON
ON
Reader / card errors
OFF
100ms ON
100ms OFF
Firmware upgrade running
OFF
ON
COMBI CARD powered in contact
slot
500ms ON
500ms OFF
OFF
COMBI CARD powered using RF
field
ON
ON
3.2.3 Clock frequency
STC-II running @24 MHz for USB operation
ICC clock @4MHz
PICC clock @13.56MHz using MIFARE RC531 chip
3.2.4 Smart Card Slot Details
Single smart card slot implemented
.
Manual ejection mechanism
Class A or AB cards ONLY; No support for B only cards
IND.SCR331-DI.MANUAL.VER.1.8
VER1.8
Page 7 of 36
