Panasonic WV-SW396A Installation Manual page 26

• External I/O cable
Important:
• Input and output of the external I/O terminal 2 and 3
can be switched by configuring the setting. The
default of EXT I/O terminal 2 is "ALARM IN 2" and of
EXT I/O terminal 3 is "ALARM IN 3". It is possible to
determine whether or not to receive input from EXT
I/O terminal 2 and 3 (ALARM IN2, 3) by selecting
"Off", "Alarm input", "Alarm output" or "AUX output"
for "Terminal alarm 2" or "Terminal alarm 3" on the
[Alarm] tab on the "Alarm" page. Refer to the
Operating Instructions (included in the CD-ROM) for
further information.
• When using the EXT I/O terminals as the output termi-
nals, ensure they do not cause signal collision with
external signals.
<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 (unbalanced)
• 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.
• Output impedance: Approx. 600 Ω (unbalanced)
• Recommended cable length: 10 m {32.8 feet} or less
• Output level: –20 dBV
26
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).