The QR4x and QR8x quads are the devices enabling the simultaneous displaying of 4 cameras on one monitor. The QR8x quad also offers the possibility displaying of the 2 pages of 4 cameras. The refresh sequence of displaying cameras is 50/60 fields/s.

Monitor Outputs

The QR4M and QR8M quads have one MAIN and one SPOT video output. The MAIN video output is used for connecting a monitor and enables either the displaying of split screen, or particular cameras in full size. The SPOT video output is used only for the displaying of split digital picture and is usually used for recording to the time lapse recorder. The QR4C and QR8C quads have also one S-VIDEO output that is identical to the MAIN video output.


The QR4x and QR8x also contain the well-arranged setting menu, which can be used for easy settings of all parameters on the display.

Alarm Processing

The QR4x and QR8x have one alarm input for each video input. After the alarm input is activated, the relay contacts are switched ON. The relay contacts are lead out to the alarm connector. The alarm can be active during the whole time, when the alarm input is active, or in the interval from 2 to 255 seconds since the activation. The alarmed camera is displayed on the whole screen, as long as the alarm lasts. The alarm is signalled acoustically too.

Switching Sequence

The QR4x and QR8x enable the manual or automatic switching of particular camera and quad pictures on the MAIN monitor output. The quads automatically switch according to the programmed sequence, where can be set up the order and time of switching camera. The switching time can be set up within from 1 to 255 seconds. The switching sequence is programmed with the help of on-screen menu and can be of 16 steps at maximum.

Digital Zoom for VCR Play Mode

The QR4C and QR8C quads enable digital zoom at VCR quad picture displaying.


Technical specification
Power supply 12 VDC
Power consumption 7 W max.
Range of operating temp. 0-40°C
Humidity 85% max
Dimensions QR4x 218 x 44.5 x 230 mm
Weight QR4x 1.4 kg
Dimensions QR8x 436 x 44.5 x 230 mm
Weight QR8x 2.8 kg
Video signal
TV standard PAL (CCIR) / NTSC (EIA)
Number of the active TV lines 512 / 480 lines
Samples per TV line 864 / 856
Grey shades 256 (steps)
Number of colours 16 millions
Refresh frequency 50 / 60 fields / s
Video inputs
Number of QR4x inputs 4 looped
Number of QR8x inputs 8 looped
Input voltage amplitude 0.75-1.5 Vpp
Input impedance 75 W or high impedance
Connectors BNC
Video outputs
Number of outputs 2 composite + 1 S-VIDEO
Output voltage impedance 1 Vpp at 75 W
Connectors BNC (composite), MINI DIN 4 (S-VIDEO)
Alarm inputs
Number of QR4M inputs 4
Number of QR8M inputs 8
Activity normally open
Connector D-SUB25M
Alarm output
Relay contacts 40 V / 0.5 A max.
Model identification
QR4M 4 channel B&W real time hi-res quad
QR8M 8 channel B&W real time hi-res quad
QR4C 4 channel colour real time hi-res quad
QR8C 8 channel colour real time hi-res quad

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