Dedicated Micros D3 Setup Manual

Dedicated Micros D3 Setup Manual Manual pdf 10 page image

8Connecting Audio DevicesD4 can record and playback a single stream of audio linked to Camera 1.There are two audio input ports: MIC IN and LINE IN, and an audio output:LINE OUT.Connecting a Microphone to MIC INConnect the microphone into the 3.5mm jack plug labeled MIC IN. It isimportant to select the correct type of microphone for connection to the D4. D4requires an electret microphone with a sensitivity of -50dBV or better.Connecting a Pre-amplifier to LINE INWhere additional microphone gain and/or adjustable gain is required, anexternal microphone pre-amplifier with adjustable gain is recommended. Amicrophone pre-amplifier will provide a line level 1V pk-pk signal that can beconnected to the RCA socket labeled LINE IN on the D4. The line level inputhas the following specification:Line IN 47 KOhm input impedance, 1V pk-pk.Connecting the LINE OUT to an AmplifierConnect the RCA socket labeled LINE OUT to an external amplifier or poweredloudspeakers. The line level output has the following specification:Line OUT 1V pk-pk.Recording AudioOnce the microphone or pre-amplifier is connected to the D4, the option torecord audio should be enabled in the menu. See page 20 for details ofenabling audio recording. It is advised that you test the quality of audioplayback, it may be necessary to increase the gain of the microphone.As the audio is linked to Camera 1, it is required that Camera 1 be viewed,either in a full screen or in a quad view during playback to hear the audio.Relay connections are as follows:Important Note: The onboard relays are rated at 24V 500mA, do not attemptto connect mains power through the relays.Connecting External Keyboard (KBS3)The D4 supports an external keyboard to offer variable speed control.The remote keyboard (DM/KBS3) can be connected to the RS485 Bus of theD4 unit. This offers extra functionality:• Remote control from a distance of up to 1500m (4900ft).• Control of on-board telemetry.• Jog/shuttle playback using the joystick.• Panic alarm button (record all cameras at the alarm rate and activate thealarm relay, R1).Important Note: Multiple D4 units can not be connected together; the externalkeyboard (DM/KBS3) can only be used to control a single D4 unit at any onetime, i.e. one keyboard per D4 unit.PIN CONNECTION ACTION1 -23 - 45 - 67 - 8Relay 1Relay 2Relay 3Relay 4Close on AlarmClose on ActivityClose on Camera failUndefinedENGLISH