Panasonic WV-SW396 Installation Manual page 24

<Ratings>
• ALARM IN1/ DAY/NIGHT IN, ALARM IN2, ALARM
IN3
Input specification: No-voltage make contact input
(4 V - 5 V DC, internally pulled up)
OFF: Open or 4 V - 5 V DC
ON: Make contact with GND (required drive current:
1 mA or more)
• ALARM OUT, AUX OUT
Output specification: Open collector output (maxi-
mum applied voltage: 20 V DC)
Open: 4 V - 5 V DC by internal pull-up
Close: Output voltage 1 V DC or less (maximum drive
current: 50 mA)
• Microphone/line input cable
Connect a monaural mini plug (ø3.5 mm).
• Input impedance: Approx. 2 kΩ
• Recommended cable length: 1 m {3.28 feet} or less
(for microphone input)
10 m {32.8 feet} or less (for line input)
• Recommended microphone: Plug-in power type
(option)
• 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 the power of the
audio output devices. Otherwise, loud noise may be
heard from the speaker.
• Audio output cable
Connect a stereo mini plug (ø3.5 mm). (Audio output
is monaural.) Use an external speaker with amplifier.
• Recommended cable length: 10 m {32.8 feet} or less
Note:
• Make sure that the stereo mini plug is connected to
this cable. When a monaural mini plug is connected,
audio may not be heard.
When connecting a monaural speaker with amplifier,
use an optional conversion cable (mono-stereo).
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