System schemetic, Wiring camera control port and sensor / alarm port – CNB SDF1212CD User Manual
Page 7
4 Channel DVR User Guide
7
SYSTEM SCHEMETIC
Wiring Camera Control port and Sensor / Alarm Port
Dried Contact
1
2
3
4
OUT
(+)
(-)
(+)
(-)
+12VDC
ALARM
SENSOR
Sensor
Adapter
RS-422/485
TX+ TX- RX+ RX-
1 2 3 4
RS422 R485
1 TX+ DATA+
2 TX- DATA-
3 RX+
4 RX-
SENSOR INPUT :Connect two signal lines of sensor (infrared rays sensor, heat perception
sensor, magnetic sensor) to the desired sensor number.(You can set the type-NC or NO- of
sensor at “Setup” mode).
ALARM OUTPUT : Use this at 30V/300mA or less operating voltage and current. When
controlling lamp and AC operated equipment, control it using separate outside relay. During
normal operation the control output contact is maintained at “Open” status, and during control
output the output contact is changed to “Close(short)” status.
SENSOR inputs need dried contact only. Do not input any electric signal.
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