BDM – LifeSafety Power Battery Disconnect Module
Battery Disconnect Module
תיאור
Designed to protect sensitive reader electronics, controllers, and other devices from the effects of voltage being too low for proper operation, the BDM can prevent permanent damage by disconnecting the battery when the voltage drops to 8.5V (12V battery) or 17V (24V battery).
After cutoff, the battery will remain disconnected (even if the battery voltage rises above 8.5V / 17V) until the AC power is restored and the power supply starts charging the battery once again.
