MagTek IntelliStripe65 99875141 - Manual (Page 25)

Appendix A. Options
17
POWER-FAIL LATCH RELEASE OPTION
The externally mounted power-fail capacitor is shown in Figure A-3.
Figure A-3. Latch Release Capacitor
The power fail unlatch option disengages the latch during a power failure event. This option is
triggered when the main input power to the reader fails. An external backup capacitor is
required for this option to function. This capacitor can be connected to the reader through a
header on the board.
In the case of power failure, the capacitor automatically opens the latch, which releases the card.
The users must determine the wire length required for their specific application. The power fail
capacitor range is 3300uF to 15000uF with a rated voltage greater than the applied reader input
voltage.