... 2CH of D1 & 2CH of CIF .l 8-36V wide voltage supply design, Very good ... in, up to 2 channelsAudio Output1 channel output, output voltage, 1V ~2VCompressionG.726, 5KB/sAlarmInputSupport ... seconds ahead of the alarm startingOutput2Ch alarm output, level signal.Communication PortRS232 for remote ... 2.Preset timePower SupplyDC,+8V ~ +36VPower Output+12V 1.5A,+5V 1.5APower consumNormal working state <5W ...