24Caution:• ONLY CONNECT 12 V DC CLASS 2 POWER SUPPLY (UL 1310/CSA 223) or LIMITEDPOWER SOURCE (IEC/EN/UL/CSA 60950-1).Before starting the connection, turn off the power of this camera and the devices to be connected.Check and prepare the required devices and cables for connection.Note:• When using the mount bracket (accessory), it is possible to connect the cables after mountingthe camera onto the mount bracket.• Refer to page 19 when connecting the conduit.ConnectionNetwork cableRJ-45 (female)Alarm input/output cable 4P alarm cable (accessory)LAN cable (category 5 or better)Power cable(12 V DC)2P power cable (accessory) 12 V DC (red)GND (black)Microphone/line input cable (white)Audio output cable (black)SW559SW559 Power cable12 V DCRed PositiveBlack Negativez Connect the microphone/line input cable and the microphone (for use of the audio receptionfunction). SW559Input impedance: 2 kΩ±10 %Recommended cable length: Less than 1 m {3.28'} (for microphone input)Less than 10 m {32.8'} (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 VRecommended sensitivity of microphone: −48 dB ±3 dB (0 dB=1 V/Pa,1 kHz)IMPORTANT:• Connect/disconnect the external speaker cables or audio/video cables after turning off thepower of the camera and the amplifier. Otherwise, loud noise may come out from the speaker.