17DAudio input cable (white)Connect an external speaker* using a stereo mini plug (ø3.5 mm). (Audio output is monaural.) Output impedance : Approx. 600 Ω (unbalanced) Recommended cable length : Less than 10 m {32.8 feet} Output level : –20 dBV * Use a powered speaker.EAudio output cable (black)IMPORTANT: Connect/disconnect the audio cables and turn on the power of the camera after turning offthe power of the audio output devices. Otherwise, loud noise may be heard from the speaker. Make sure that the stereo mini plug is connected to this cable. When a monaural mini plug isconnected, audio may not be heard.When connecting a monaural speaker with amplifier, use a locally procured conversion cable(mono-stereo).Connect a microphone or the line out of an external device using a stereo mini plug (ø3.5 mm). Recommended microphone: Plug-in power type (locally procured)(Sensitivity of microphone: –48 dB ±3 dB (0 dB=1 V/Pa,1 kHz)) Input impedance: Approx. 2 kΩ (unbalanced) Supply voltage: 2.5 V ±0.5 V Recommended cable length: Less than 1 m {3.28 feet} Input level for the line input: Approx. –10 dBV Recommended cable length: Less than 10 m {32.8 feet}Note:The audio output can be switched to the monitor output*1. Refer to the "Operating Instructions" onthe provided CD-ROM for descriptions of how to switch the output.The monitor out is set to NTSC in the default settings of the camera. If you want to change themonitor out setting to PAL, refer to the Operating Instructions on the provided CD-ROM.*1 MONITOR OUT terminal (factory shipment: NTSC monitor)Used to connect a monitor used for adjustments during installation or when performing service.IMPORTANT: The adjustment monitor is used for checking the adjustment of the angular field of viewwhen installing the camera or when servicing. It is not provided for recording/monitoring use. Depending on the monitor, some characters (camera title, preset ID, etc.) may not be dis-played on the screen.