Q-See QC40108 user manual Cameras, Audio Input and Output, Video Output

Cameras

Conventional CCD or CMOS cameras are connected to the DVR through the Audio/ Video/Network port (Item number 4 in Picture 2-2) via the dongle included with the system. The dongle shown in Picture 2-4has eight Video In plugs (yellow) for cameras and four audio input plugs (black). The extra yellow and black plugs are Video Out and Audio Out respectively.

The dongle also includes an female port for an RJ45 connection. Also known as an Ethernet cable, this is used to connect your DVR to the Internet through a router or modem.

Audio In	Audio and	RJ45	Video In
BNC	Video Out	(Ethernet)	BNC
Connectors	BNC	Port	Connectors
	Connectors

Connector to Audio/Video/ Network Port on DVR

Audio Input and Output

Audio input and output is also handled through the BNC dongle. Each channel, including the output channel, is labeled on the lead itself. To receive audio signals, you must have a camera with built-in microphone or a separate microphone located near the camera.

Normal output through the BNC audio out channel is usually over 200mv 1KΩ. It can directly connect to an active sound box or amplified speaker.

PICTURE 2-4

The cameras and the dongle use BNC connectors. Each lead is identified with its channel number.

The cameras will also need to be connected to a power supply – whether the power supply included with the cameras or a power distribution panel. For best results, both the DVR and the camera power supply(ies) should share the same electrical grounding.

For cable runs longer than 200 feet, cable runs within walls, or in areas where there is electromagnetic interference, you should use high-quality shielded RG59 cable. RG6 cable should be used for runs exceeding 800 feet and fiber optic cable should be used when distances exceed 1,800 feet. In circumstances requiring cameras to be positioned over 200 feet from the DVR, the camera’s power supply should be located closer to the camera.

Video Output

This DVR supports video output to a TV or a monitor using the Video Out connector on the dongle. The BNC Video Out lead on the dongle is labeled as such. For output through the dongle, you will need to use a BNC to RCA adapter to connect to a TV with RCA inputs and a signal converter box to connect to a VGA monitor or a television with VGA inputs.

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