König Electronic SEC-DVR304-2 Mode D'emploi page 3

19. USB port: USB 2.0 compatible storage device
20. USB port: mouse connection
Description back:
1. Video input connectors (1-4): Connect system cameras to these BNC connectors. The internal 75Ω
termination is always ON.
2. Main monitor output connectors (MAIN OUT): Connect a TV monitor to the BNC connector for main
monitor display.
3. Audio input connectors (AUDIO IN): The RCA connector accepts line-in audio signal supplied from
external devices such as microphone amplifiers.
4. Audio output connectors (AUDIO OUT): The connector supplies line-out audio signal to external devices
such as speakers. Recorded audio will be supplied from AUDIO OUT during playback.
5. Ethernet connector: Connect this unit to a 10/100Base-T Ethernet network through this port.
6. Main monitor output VGA connector (MAIN OUT VGA): Connect a VGA monitor to the optional D-SUB
15-pin female connector for main monitor display.
7. RS-485 connector: Connect this connector to a RS-485 compatible PTZ camera(s) or keyboard. Please
refer to the manuals that come with the RS-485 compatible devices for the correct settings.
8. Alarm input connectors (ALARM IN 1-4): Connect these connectors to external devices such as sensors
or door switches.
9. Alarm output connectors (ALARM OUT NC (1)/NO (2)): Connect NC connectors (left) to Normally Closed
(NC) alarm output, or NO connectors (right) to Normally Open (NO) alarm output. Please note that only
one of the NC or NO connectors can be connected only.
10. IR extension port (IR optional): connection IR receiver (Optional)
11. Power switch (POWER): Turn the power of this unit on/off.
12. Power cord inlet (DC 12V): Connect to DC 12V power source.
RS485 Alarm Input Alarm Output
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