Sony SNC-VB770/K2 Installation Manual page 6

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i 5 (line output) terminal (mini-jack, monaural)
This is not used in this version.
If the speaker is connected, noise may sometimes occur.
This is not a fault, but it is due to the electromagnetic
block.
j
(microphone/line input) terminal (mini-jack,
m
monaural)
Switch between
(microphone/line) terminal (mini jack,
m
monaural) microphone input and line input in the Video/
Audio menu.
For details on settings, please refer to the User Guide.
• Microphone input terminal
Connect the commercial microphone.
This terminal supports plug-in power system (basic
voltage: 2.5 VDC).
k I/O (input/output) port
Equipped with 2-system sensor inputs, 2-system alarm
outputs.
Each pin supports the signals below.
Pin No.
1
2
3
4
5
6
7
8
9
◆ Refer to the User's Guide for details on each function
and setting.
Wire as shown below for each wire of the I/O cable.
Name
Alarm input 1
Alarm input 2
GND
Alarm output 1+
Alarm output 1–
Alarm output 2+
Alarm output 2–
Extended terminal
Extended terminal
Connection to I/O cable
Mechanical switch/open collector output
equipment
Inside of the camera
3.1 V
10 kΩ
2.2 kΩ
10 kΩ
Sensor input+
10 kΩ
Sensor input –
(GND)
GND GND
GND
Connection diagram
Inside of the camera
Alarm output +
Alarm output –
Note
Cables should be connected without routing to the outside
when 2, q;, or qa is connected.
When you wire the cable with the cable routed indoors,
2, q;, or qa should be wired under 30 m.
6
Outside
Mechanical switch
or
Open collector
Output equipment
5 V
Outside
R
Line example
GND

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