Title: Hardware Installation Guide.pdf
The LED patterns used for Heartbeat, Host communication, and downstream communication will be suspended during the save/restore and will return to normal once the save/restore is complete.34.2Replace Memory Backup BatteryThe ISC contains a memory backup battery that is used to back up event and transaction data in the event of a power failure.A 3V lithium ion battery (Rayovac BR2325 or Wuhan Lixing CR2330) is used for the memory backup. This battery should be replaced annually.Caution:There is a danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries in accordance with the manufacturer's instructions.174 — revision 6Hardware Installation Guide35Specifications** The ISC is for use with UL Listed access control power limited power supplies.Primary Power: 12 to 24 VDC ±10%, 300 mA maximum - -