Approach Tech DVR-3024 manual Rear View, Alarm OUT, Disk FULL, Record

IN

OUT

IN

OUT

ETHERNET

RS-232

MONITOR AUDIO

29 30 31 32

25 VIDEO IN Connector: These 4 BNC connectors are used to connect the video output from a camera

26Hi-Z/75 Ω Individual termination: These 4 switches are used to set the impedance of each loop between 75Ω and Hi-Z.

27SD CARD Slot: This is used for system software updating and archiving/accessing critical images.

28RS-232Port: The RS-232 communication port functions as a connector to an external control device.

29MONITOR Connector: The connector links the unit’s composite video to a display device.

30AUDIO OUT: This connector is used to link the device’s audio input.

31AUDIO IN Connector: This connector is used to connect the audio output from a camera or other devices to the DVR.

32ETHERNET 10/100 Connector: This is one standard RJ-45 connector for 10/100 Mbps Ethernet networks.

33RS-485Port: The RS-485 communication ports function as connectors when two or more units are serially connected to an external control device.

34ALARM I/O: This is a 9-PIN D-SUB

connector including SWITCH OUT, GROUND,

ALARM OUT, DISK FULL, RECORD IN,

ALARM RESET, and ALARM IN for connecting with external devices. Please refer to the next section for details.

35Wire Catch: The wire catch secures the power cord and keeps it in place (so that it does not droop or hang loosely).

36Ground Screw: The ground screw is for the chassis terminal.

37Plug Inlet: The inlet connects to an external power supply. Connect 12 V DC UL Listed Class 2 Power Supply.