... , RCAAlarm Input4 Channel, Trigger closed without Voltage,Open or ClosedAlarm Output2 Channel, Trigger closed without Voltage,Open or ClosedAlarm ModeSensor Input, Motion ... , RS485 x 1BackupUSB2.0, CDRW, DVDRW and NetworkBit Rate5 Levels120MB/H,150MB/H,250MB/H, 300MB/H,500MB/H, 11000MB/H Self-definedPasswordEncrypted by 128-bit Numerical ...