EverFocus EDR-1640, EDR-920 manual Audio connection installation, Audio Recording Functionality

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2.3 Audio connection installation

Sample installation with audio connection to video cameras providing audio output:

The EDR920/1640 DVRs provide 4 audio inputs and 1 audio output.

The inputs are designed for max. 500 mV to 10 KOhm line audio signals.

ATTENTION: The direct connection of a non-amplified microphone is not supported (a microphone amplifier is required).

The installation has to be effected with audio coax cable and RCA plugs.

The output provides a max. 500 mV to 10 KOhm line audio signal and may be connected to e.g. a monitor‘s audio input. The direct connection of (passive) speakers is not supported.

AUDIO RECORDING FUNCTIONALITY:

Audio recording is activated / deactivated in the RECORDING menu for all channels.

Audio of all channels is always recorded together with (each) video and is independent of the image recording rate. There is no specific camera allocation.

During playback, use the JOG to select the requested playback channel 1~4 (active channel is indicated in playback on-screen display).

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Contents EDR-920 Safety warnings Safety warningsTable of Contents Recording PlaybackFeatures IntroductionDelivery Scope Technical Data Video inputTitle generator Front Panel Operating Elements KeysJog / Shuttle Page Video inputs EDR920 ConnectionsAudio output Audio output EDR1640Page Screen Displays Channel-related types of eventGlobal types of event Playback date Playback status Playback position PauseXX% HDD fan message Video connection installation, DVR cascading Delivery scopeDVR cascading Audio connection installation Audio Recording FunctionalityRS-485 keyboard installation General RS-485 bus installationPage 2 RS-485 plug connection assignment EKB-500 connection with network patch cableEKB-500 connection to several DVRs Speed dome installation Alarm input / output installation DescriptionsPS/2 mouse installation Installation EDA800s harddisk expansion unitNetwork connection through patch cable Network connectionDirect PC connection through crossover network cable Network system requirementsPower connection HarddisksStart-up Setup Menu Time / Date Menu TimeDate Central Europe daylight saving time adjustment Time Synchronisation Time ServerTime Zone Install / Covert Camera MenuSuperior High Standard Basic LOW Lower REC Speed on Time ZoneSummary Copy functionTime Stamp Recording MenuRecord Audio Time Stamp POSResolution Record ModeAlarm Type Alarm MenuAlarm Active CameraSummary Motion Alarm OutputMotion Detection SensitivityPage Area Setup Video Loss Menu VlossNetwork Menu NetworkAlarm Network alarm Email Email alarm Password Correct Timer MenuDAY SET activationHDD harddisk Menu 10 RS232/RS485 Menu Network Alarm FAN FailureHDD Temp Stop RecordNo HDD 5EMAILHDD Full SAVE/LOAD Configuration System MenuSystem Password User rights, version Recording RecordingTimer scheduled recording Event recordingPlayback Playback Without Search FunctionFast forward / reverse Slow forward playback Single image playbackPlayback Search NavigationTime / Date Search Alarm Event SearchVloss Video Export USB socketPage Call / Matrix Monitor Setup Display Settings Image Position Adjustment on MonitorBRIGHTNESS, CONTRAST, Colour Screen Display EDA 966 Infrared Remote Control optional Network Access Access VIA Internet ExplorerPC System Requirements Reverse Playback PlaybackEvent list search mode Playback SearchTime / Date Search Preset PTZ ControlAppendix a EDR Viewer Software Appendix a EDR Viewer SoftwareEDR Viewer Installation Interface Specification DVR HostRemote control protocol Sample control code packetsFormat of message packet is as follows Length Byte16383 1111111 All DVR Connect to RS485/RS232 Opcode Byte & Data bytes OPcode Remote keys OPcode=0x4BMatrix command OPcode=0x4D Checksum ByteAppendix D Recording times Head Office USA Office China Office Japan Office