20
21
Item #
Connector
Description
1
Power Switch
Power On/Off
2
FAN
Cooling fan exhaust port. This should not be blocked.
3
DC 12V Power Connection
4
VIDEO IN
BNC connectors for up to four cameras
5
RJ45
For connecting Ethernet cable
6
USB port for the mouse
7
AUDIO
PORTS
BNC ports. Input for a single audio channel. Output to an
external speaker. Connecting an external speaker will not affect
the DVR’s internal speaker.
8
RS485
RS485 for connecting PTZ camera
9
VIDEO OUT
Video output for connecting to a TV (BNC)
Item #
Name/ Symbol
Description
1
SCREEN
7” LCD screen
2
LCD ON/OFF
Turns the screen on or off. The DVR will still operate.
3
STANDBY/
DISPLAY
MODE
Pressing and holding will bring up the menu to put the DVR to
sleep or turn it off.
Pressing and releasing the button will cycle through the individual
channels or display all four channels simultaneously.
4
MENU/EXIT
Press to open/close the main menu.
5
NAVIGATION
▲
Press to move cursor up; in PTZ mode, press to pan
camera up.
▼
Press to move cursor down; in PTZ mode, press to
pan camera down.
◄
Press to move cursor left; in PTZ mode, press to pan
camera left.
►
Press to move cursor right; in PTZ mode, press to
pan camera right.
6
OK
In menus, press to confirm selections; in PTZ mode, press to
change the navigation buttons to control a connected PTZ
camera (not included)
7
IR SENSOR
IR Receiver for remote control.
8
LED
INDICATORS
Shows power, recording status, motion detection (Alarm), hard
drive and network connection status
9
USB
The upper port is to connect a USB flash drive for
data backup and firmware upgrades.
The lower port is to connect a USB mouse.
SPEAKER
QS4474
FRONT PANEL
REAR PANEL
HDD
NET
ALM
REC
Standby
POWER
LCD
ON/OFF
MENU
EXIT
OK
QS4474
1
2
3
7
9
8
4
6
5
RS485-A
RS485-B
GND
DC +12V
IN
RJ45
1
2
3
4
IN
OUT
VIDEO IN
AUDIO
ON
OFF
-
+
VIDEO OUT
1
2
3
5
7
9
4
6
8
