User Manual

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Rev.1.0 (Nov., 2011)
14
2.4. Functional Description
 DC 12V: Power input for supplying 12V DC power.
 MIC/LINE IN
Connect external audio source or microphone.
 Line Out
Connect speakers with built in amplifier. Audio from remote site is output through Line out in bi-directional
audio mode.
 100Base-T
100Mbps Ethernet connector (RJ-45)
 Alarm In/Out and Audio In
Used for connecting alarm sensor, microphone and speaker to ONSIP OB1.
Description
LINE OUT (+)
1 V p-p audio signal output for amplified speaker.
MIC/LINE GND (-)
Ground for audio signals.
MIC/LINE IN (+)
Audio input: Can be used either for microphone or applying audio
signals from other audio equipment.
SENSOR IN
Sensor In (+). NC/NO selectable in admin mode.
SENSOR IN GND
Ground for sensor
 SENSOR IN
Connect external alarm sensor. Examples of sensing devices are infrared sensor, motion sensor,
heat/smoke sensor, magnetic sensor, etc. Connect the two wires of the sensors to “SNS In”. The
sensor type (NC/NO) can be set in admin page. 10 mA can be flown into sensor device. Multiple sensor
devices can be connected in parallel.