4CH
PIN 1. RS232-TX
DVR can be controlled remotely by the keyboard of PC, using
PIN 2. RS232-RX
DVR can be controlled remotely by the keyboard of PC, using
PIN 3. ~ PIN 5. ALARM INPUT
To connect wire from ALARM INPUT ( PIN 3
When Menu/ Camera/ Alarm is set up to “Low” : When alarm input signal is “ Low ”, the unit starts to record and buzzer.
When Menu/ Camera/ Alarm is set up to “High” : When alarm input signal is “ High ”, the unit starts to record and buzzer.
PIN 7. EXTERNAL ALARM NC
Under normal operation COM connect with NC and disconnect from NO. But when alarm is triggered, COM disconnect with NC, and connect with NO.
Attention: Voltage restrictions is under AV/DC 30V.
PIN 8. EXTERNAL ALARM NO.
Under normal operation COM disconnect with NO. But when Alarm triggered, COM connect with NO. Attention: Voltage restrictions is under AV/DC 30V.
PIN 9. GND
Signal GND.
PIN 10.
DVR can be controlled remotely by the keyboard of PC, using
PIN 11.
DVR can be controlled remotely by the keyboard of PC, using
PIN 12, 13. PIN OFF
PIN 14. ALARM RESET
To connect wire from ALARM RESET ( PIN 14 ) to GND ( PIN 9 ) connector, it can disable ALARM. An external signal to
ALARM RESET ( PIN 14 ) can be used to reset both ALARM OUTPUT signal and DVR’s internal buzzer. When alarm has been triggered, signal becomes “Low”, and it will stop all alarm activities. Under normal operation, signal remains “High”.
PIN 15. EXTERNAL ALARM COM
Under normal operation COM disconnect with NO. But when alarm triggered, COM connect with NO. Attention: Voltage restrictions is under AV/DC 30V.
PIN 16, 17. GND
Earth GND
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