Panasonic WV-SW458M ユーザーズマニュアル

26

z

  Connect the microphone/line input cable and the microphone (for use of the audio reception 

function).
Input impedance: 

2 kΩ±10 %

Recommended cable length:  Less than 1 m {3.3 feet} (for microphone input)
  

Less than 10 m {33 feet} (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 external speaker cables or audio/video cables after turning off the 

power of the camera and the amplifier. Otherwise, loud noise may come out from the speaker. 

x

  Connect an external amplifier-embedded speaker to the audio output cable (for use of the 

audio transmission function).

  

Connect a stereo mini plug (ø3.5 mm) (Audio output is monaural.). 

•  Recommended cable length: 10 m {33 feet} or less

c

  Connect the alarm input/output cable.

ALARM OUT, AUX OUT

Open collector output (maximum applied voltage: 20 V DC)

Open

4 V DC - 5 V DC by internal pull-up

Close

Output voltage 1 V DC or less (50 mA or less)

ALARM IN

Non-voltage make contact input (4 V DC - 5 V DC, internally pulled 
up)

Off

Open or 4 V DC - 5 V DC

On

Make contact with GND (required drive current: 1 mA or more)

Note:
• Check  if  rating  of  an  external  device  such  as  a  sensor  is  applicable  to  the  rating  of  this

product by referring to the provided operating instructions.

Specification of 4P alarm cable (accessory)

GND (black)
ALARM IN3, AUX OUT (gray) (Terminal 3)
ALARM IN2, ALARM OUT (red) (Terminal 2)
ALARM IN1 (green) (Terminal 1)