• External I/O cable
IMPORTANT:
• Off, 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 and 3 is “Off”. It is possi-
ble 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 on the provided CD-ROM for
further information.
• When using the EXT I/O terminals as the output ter
-
minals, 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:
Less than 1 m {3.28 feet} (for microphone input)
Less than 10 m {32.8 feet} (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)
• Input level for the line input: Approx. –10 dBV
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: Less than 10 m {32.8
feet}
• Output level: –20 dBV
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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