25ConnectionCaution:• FOR UL LISTED MODEL(S), ONLY CONNECT 12 V DC CLASS 2 POWER SUPPLY.Before starting the connection, turn off the power of this camera and the devices to be connected.Before start the connection, prepare the required devices and cables.z Connect the RCA pin cable to the monitoroutput connector for adjustment on therear (only for adjustment of the angle fieldof view).Important:• The monitor output connector is providedonly for checking the adjustment the anglefield of view on the video monitor wheninstalling the camera or when servicing. Itis not provided for recording/ monitoringuse.• Black bands may appear at the top, bot-tom, right and left of the screen. (There isno problem with adjustment since theangle field of view is not affected.)• The video output on the monitor for adjust-ment does not guarantee the video perfor-mance or image quality.x Connect the microphone to MIC/LINE IN (for use of the audio reception function).Input impedance: Approx. 2 kΩRecommended cable length: 1 m {3.3'} or less (for microphone input)10 m {33'} or less (for LINE input)Recommended microphone: Plug-in power type microphone (option)Connect a monaural mini plug (ø3.5 mm).• Supply voltage: 2.5 V ±0.5 V• Recommended sensitivity of microphone: –48 dB ±3 dB (0 dB=1 V/Pa, 1 kHz)Important:• Connect/disconnect the audio cables and turn on the power of the camera after turning off thepower of the audio output devices. Otherwise, loud noise may be heard from the speaker.c Connect an external speaker with amplifier to the audio output connector (for use of the audiotransmission function).Connect a stereo mini plug (ø3.5 mm) (Audio output is monaural.).• Recommended cable length: 10 m {33'} or lessPOWER10BASE T/100BASE-TXAUDIO OUT MIC/LINE IN INITIALSETEXT I/OSD CARD/ABFMONITOR OUTACT LINK12V = INGND 4 3 2 1 ALARM IN 1/DAY/NIGHT INAUX OUT ALARM OUTConnect tothe videomonitor, etc.(This illustration represents WV-SP306.)